Wet bulb dry bulb thermometer Stock Photos and Images
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Wet bulb dry bulb thermometer Stock Photos and Images
Wet bulb and dry bulb thermometer Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-wet-bulb-and-dry-bulb-thermometer-27022090.htmlRFBFXXXJ–Wet bulb and dry bulb thermometer
Inside Stevenson screen showing dry and wet bulb themometers as part of interactive weather station at Brogdale National Fruit Collection, Kent, UK Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/inside-stevenson-screen-showing-dry-and-wet-bulb-themometers-as-part-of-interactive-weather-station-at-brogdale-national-fruit-collection-kent-uk-image490349477.htmlRF2KDN9N9–Inside Stevenson screen showing dry and wet bulb themometers as part of interactive weather station at Brogdale National Fruit Collection, Kent, UK
Sling Psychrometer Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-sling-psychrometer-135009576.htmlRFHRJ62G–Sling Psychrometer
Wet and dry bulb thermometer, an instrument used to measure the relative humidity of the atmosphere. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/wet-and-dry-bulb-thermometer-an-instrument-used-to-measure-the-relative-humidity-of-the-atmosphere-image515423490.htmlRF2MXFFWP–Wet and dry bulb thermometer, an instrument used to measure the relative humidity of the atmosphere.
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434058369.htmlRF2G651TH–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
August psychrometer, device for measuring the atmospheric humidity with two thermometers, one with the bulb wet covered in distilled water prior the observation Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/august-psychrometer-device-for-measuring-the-atmospheric-humidity-with-two-thermometers-one-with-the-bulb-wet-covered-in-distilled-water-prior-the-observation-image392277111.htmlRF2DP5NCR–August psychrometer, device for measuring the atmospheric humidity with two thermometers, one with the bulb wet covered in distilled water prior the observation
The psychrometer (showing wet and dry bulb thermometers) is an instrument used for determining the humidity by the temperature of evaporation, vintage Stock Vectorhttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-psychrometer-showing-wet-and-dry-bulb-thermometers-is-an-instrument-used-for-determining-the-humidity-by-the-temperature-of-evaporation-vintage-image348664912.htmlRF2B771J8–The psychrometer (showing wet and dry bulb thermometers) is an instrument used for determining the humidity by the temperature of evaporation, vintage
![700 'MET CLIMBS' : A WORLD'S RECORD! - One of the ground staff 'tops up' the psychrometer [wet and dry bulb thermometer] carried on the wing of the aircraft, Royal Air Force Stock Photo](https://c8.alamy.com/comp/2X1M8Y6/700-met-climbs-a-worlds-record!-one-of-the-ground-staff-tops-up-the-psychrometer-wet-and-dry-bulb-thermometer-carried-on-the-wing-of-the-aircraft-royal-air-force-2X1M8Y6.jpg "700 'MET CLIMBS' : A WORLD'S RECORD! - One of the ground staff 'tops up' the psychrometer [wet and dry bulb thermometer] carried on the wing of the aircraft, Royal Air Force Stock Photo")
700 'MET CLIMBS' : A WORLD'S RECORD! - One of the ground staff 'tops up' the psychrometer [wet and dry bulb thermometer] carried on the wing of the aircraft, Royal Air Force Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/700-met-climbs-a-worlds-record!-one-of-the-ground-staff-tops-up-the-psychrometer-wet-and-dry-bulb-thermometer-carried-on-the-wing-of-the-aircraft-royal-air-force-image603423610.htmlRM2X1M8Y6–700 'MET CLIMBS' : A WORLD'S RECORD! - One of the ground staff 'tops up' the psychrometer [wet and dry bulb thermometer] carried on the wing of the aircraft, Royal Air Force
02 20 2022 Vintage wooden Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers Lokgram Kalyan Maharashtra India. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/02-20-2022-vintage-wooden-wet-dry-bulb-hygrometer-wall-mounted-thermometers-lokgram-kalyan-maharashtra-india-image461432707.htmlRF2HPM23F–02 20 2022 Vintage wooden Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers Lokgram Kalyan Maharashtra India.
Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity . of the air dependsentirely on the total of the sensible and the latentheat in the air and-is independent of their relativeproportions. In other words, the wet-bulb tem-perature of the air is constant, providing the totalheat of the air is constant. Dry Bulb Thermometer: The dry bull) thermometershould be an accurate instrument preferably having thedivisions marked on the glass tube of the thermometer. Itshould not be placed too close to the wet bulb, thereby pre-venting Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/catalog-13-carrier-air-washers-and-humidifiers-applied-to-public-office-and-industrial-buildings-with-notes-on-humidity-of-the-air-dependsentirely-on-the-total-of-the-sensible-and-the-latentheat-in-the-air-and-is-independent-of-their-relativeproportions-in-other-words-the-wet-bulb-tem-perature-of-the-air-is-constant-providing-the-totalheat-of-the-air-is-constant-dry-bulb-thermometer-the-dry-bull-thermometershould-be-an-accurate-instrument-preferably-having-thedivisions-marked-on-the-glass-tube-of-the-thermometer-itshould-not-be-placed-too-close-to-the-wet-bulb-thereby-pre-venting-image342750235.htmlRM2AWHHBR–Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity . of the air dependsentirely on the total of the sensible and the latentheat in the air and-is independent of their relativeproportions. In other words, the wet-bulb tem-perature of the air is constant, providing the totalheat of the air is constant. Dry Bulb Thermometer: The dry bull) thermometershould be an accurate instrument preferably having thedivisions marked on the glass tube of the thermometer. Itshould not be placed too close to the wet bulb, thereby pre-venting
It consists of two thermometers, similar to each other in all aspects, except that one of them has a piece of muslin tied closely over the surface of Stock Vectorhttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/it-consists-of-two-thermometers-similar-to-each-other-in-all-aspects-except-that-one-of-them-has-a-piece-of-muslin-tied-closely-over-the-surface-of-image359322719.htmlRF2BTGFP7–It consists of two thermometers, similar to each other in all aspects, except that one of them has a piece of muslin tied closely over the surface of
. A manual of the timbers of the world : their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Timber. THE ARTIFICIAL SEASONINCx OF TIMBER 409 The wet and dry bulb mcrcur}-' thermometers arc therefore the basis of all readings. These, however, in the ordinary form, have to be observed frequently, and the readings noted down. In order to keep a continuous and autographic record of the conditions in the dryer, the recording wet and dry bulb hygrometer is used. This instrument is. Recording Hygrometer (also Thermometer) as placed Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-manual-of-the-timbers-of-the-world-their-characteristics-and-uses-to-which-is-appended-an-account-by-s-fitzgerald-of-the-artificial-seasoning-of-timber-timber-the-artificial-seasonincx-of-timber-409-the-wet-and-dry-bulb-mcrcur-thermometers-arc-therefore-the-basis-of-all-readings-these-however-in-the-ordinary-form-have-to-be-observed-frequently-and-the-readings-noted-down-in-order-to-keep-a-continuous-and-autographic-record-of-the-conditions-in-the-dryer-the-recording-wet-and-dry-bulb-hygrometer-is-used-this-instrument-is-recording-hygrometer-also-thermometer-as-placed-image216390831.htmlRMPG1CKY–. A manual of the timbers of the world : their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Timber. THE ARTIFICIAL SEASONINCx OF TIMBER 409 The wet and dry bulb mcrcur}-' thermometers arc therefore the basis of all readings. These, however, in the ordinary form, have to be observed frequently, and the readings noted down. In order to keep a continuous and autographic record of the conditions in the dryer, the recording wet and dry bulb hygrometer is used. This instrument is. Recording Hygrometer (also Thermometer) as placed
. Electronic apparatus for biological research . Figure 30.2 Schematic layout for controlling the voltage on a wet {WB) and dry (DB) resistance thermometer bridge, using a second dry bulb element resistance in place of the wet bulb element, a suitable comparison of the outputs of the two bridges can be made to give a reasonable measure of humidity, independent of temperature, for the second dry bulb compensates out the first one. This can either be done by a cross-coil meter movement, which presents the resultant of the two bridge generated currents, or by using the output of the compensator b Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/electronic-apparatus-for-biological-research-figure-302-schematic-layout-for-controlling-the-voltage-on-a-wet-wb-and-dry-db-resistance-thermometer-bridge-using-a-second-dry-bulb-element-resistance-in-place-of-the-wet-bulb-element-a-suitable-comparison-of-the-outputs-of-the-two-bridges-can-be-made-to-give-a-reasonable-measure-of-humidity-independent-of-temperature-for-the-second-dry-bulb-compensates-out-the-first-one-this-can-either-be-done-by-a-cross-coil-meter-movement-which-presents-the-resultant-of-the-two-bridge-generated-currents-or-by-using-the-output-of-the-compensator-b-image178412673.htmlRMMA7B55–. Electronic apparatus for biological research . Figure 30.2 Schematic layout for controlling the voltage on a wet {WB) and dry (DB) resistance thermometer bridge, using a second dry bulb element resistance in place of the wet bulb element, a suitable comparison of the outputs of the two bridges can be made to give a reasonable measure of humidity, independent of temperature, for the second dry bulb compensates out the first one. This can either be done by a cross-coil meter movement, which presents the resultant of the two bridge generated currents, or by using the output of the compensator b
Sling Psychrometer Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-sling-psychrometer-135009577.htmlRFHRJ62H–Sling Psychrometer
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434058428.htmlRF2G651XM–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
02 20 2022 Vintage wooden Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers Lokgram Kalyan Maharashtra India. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/02-20-2022-vintage-wooden-wet-dry-bulb-hygrometer-wall-mounted-thermometers-lokgram-kalyan-maharashtra-india-image461432790.htmlRF2HPM26E–02 20 2022 Vintage wooden Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers Lokgram Kalyan Maharashtra India.
Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity . The Sung Psychrometer The Sling Psychrometer: Tins instrument consists ofa wet and dry bulb thermometer, provided with a handle,as shown above, which permits of the thermometersbeing whirled rapidly. This instrument is convenient touse as it may be carried about a room or building by anobserver and readings taken easily and rapidly. This isprobably the most accurate instrument in general use, andis the one used by the United States Weather Bureau.List Price, each $g OQ. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/catalog-13-carrier-air-washers-and-humidifiers-applied-to-public-office-and-industrial-buildings-with-notes-on-humidity-the-sung-psychrometer-the-sling-psychrometer-tins-instrument-consists-ofa-wet-and-dry-bulb-thermometer-provided-with-a-handleas-shown-above-which-permits-of-the-thermometersbeing-whirled-rapidly-this-instrument-is-convenient-touse-as-it-may-be-carried-about-a-room-or-building-by-anobserver-and-readings-taken-easily-and-rapidly-this-isprobably-the-most-accurate-instrument-in-general-use-andis-the-one-used-by-the-united-states-weather-bureaulist-price-each-g-oq-image342749667.htmlRM2AWHGKF–Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity . The Sung Psychrometer The Sling Psychrometer: Tins instrument consists ofa wet and dry bulb thermometer, provided with a handle,as shown above, which permits of the thermometersbeing whirled rapidly. This instrument is convenient touse as it may be carried about a room or building by anobserver and readings taken easily and rapidly. This isprobably the most accurate instrument in general use, andis the one used by the United States Weather Bureau.List Price, each $g OQ.
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434058316.htmlRF2G651PM–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
02 20 2022 Vintage wooden Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers Lokgram Kalyan Maharashtra India. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/02-20-2022-vintage-wooden-wet-dry-bulb-hygrometer-wall-mounted-thermometers-lokgram-kalyan-maharashtra-india-image461432798.htmlRF2HPM26P–02 20 2022 Vintage wooden Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers Lokgram Kalyan Maharashtra India.
Hygiene, dental and general . erence between the dry bulb and wet bulb readings.The movement of air also affects the rate of evaporation; butevaporation approaches its maximum rate when the air is mov-ing at about four miles per hour, so that if the wet bulbthermometer is swung in the air with a free arm motion theminimum reading can be obtained in a few moments, VENTILATION. HEATING AND LIGHTING 323 The Sling* Psychrometer.—An instrument in common usefor testing the dryness of air is the sling psychrometer whichconsists of a dry bulb thermometer and a wet bulb thermom-eter attached to a solid Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/hygiene-dental-and-general-erence-between-the-dry-bulb-and-wet-bulb-readingsthe-movement-of-air-also-affects-the-rate-of-evaporation-butevaporation-approaches-its-maximum-rate-when-the-air-is-mov-ing-at-about-four-miles-per-hour-so-that-if-the-wet-bulbthermometer-is-swung-in-the-air-with-a-free-arm-motion-theminimum-reading-can-be-obtained-in-a-few-moments-ventilation-heating-and-lighting-323-the-sling-psychrometeran-instrument-in-common-usefor-testing-the-dryness-of-air-is-the-sling-psychrometer-whichconsists-of-a-dry-bulb-thermometer-and-a-wet-bulb-thermom-eter-attached-to-a-solid-image340058371.htmlRM2AN6YWR–Hygiene, dental and general . erence between the dry bulb and wet bulb readings.The movement of air also affects the rate of evaporation; butevaporation approaches its maximum rate when the air is mov-ing at about four miles per hour, so that if the wet bulbthermometer is swung in the air with a free arm motion theminimum reading can be obtained in a few moments, VENTILATION. HEATING AND LIGHTING 323 The Sling* Psychrometer.—An instrument in common usefor testing the dryness of air is the sling psychrometer whichconsists of a dry bulb thermometer and a wet bulb thermom-eter attached to a solid
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434058275.htmlRF2G651N7–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity . I[ygrodeik Hy^rodeik; While the hygrophant is the most com-mon instrument used, the hygrodeik is very convenient, asthe relative and absolute humidities can be read direct fromthe curves without further calculations. List Price each, Polished Brass Frame. hi .$15.00 Carrier Air Conditioning Company of America. The Sung Psychrometer The Sling Psychrometer: Tins instrument consists ofa wet and dry bulb thermometer, provided with a handle,as shown above, which permits of th Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/catalog-13-carrier-air-washers-and-humidifiers-applied-to-public-office-and-industrial-buildings-with-notes-on-humidity-i-ygrodeik-hyrodeik-while-the-hygrophant-is-the-most-com-mon-instrument-used-the-hygrodeik-is-very-convenient-asthe-relative-and-absolute-humidities-can-be-read-direct-fromthe-curves-without-further-calculations-list-price-each-polished-brass-frame-hi-1500-carrier-air-conditioning-company-of-america-the-sung-psychrometer-the-sling-psychrometer-tins-instrument-consists-ofa-wet-and-dry-bulb-thermometer-provided-with-a-handleas-shown-above-which-permits-of-th-image342750021.htmlRM2AWHH45–Catalog 13: Carrier air washers and humidifiers: applied to public office and industrial buildings, with notes on humidity . I[ygrodeik Hy^rodeik; While the hygrophant is the most com-mon instrument used, the hygrodeik is very convenient, asthe relative and absolute humidities can be read direct fromthe curves without further calculations. List Price each, Polished Brass Frame. hi .$15.00 Carrier Air Conditioning Company of America. The Sung Psychrometer The Sling Psychrometer: Tins instrument consists ofa wet and dry bulb thermometer, provided with a handle,as shown above, which permits of th
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434059305.htmlRF2G65321–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
The principles of fruit-growing . rmometers should be read. Subtr.actthe reading of the wet-bulb thermometer from that ofthe dry. Find this difference in the column at theleft of the table. The dew-point will then befound at the intersection of the line opposite thisdifference and the column which is headed by thenumber nearest the air temperature (dry-bulbreading). Examples are given below: Dry-bulb thermometer 55° Wet-bulb therm^ometer 44° Difference 11° Dew-point from table 30° Dry-bulb thermometer 43° Wet-bulb thermometer 38° Difference 5^ Dew-point from table, between 27° and 33°, about 3 Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-principles-of-fruit-growing-rmometers-should-be-read-subtractthe-reading-of-the-wet-bulb-thermometer-from-that-ofthe-dry-find-this-difference-in-the-column-at-theleft-of-the-table-the-dew-point-will-then-befound-at-the-intersection-of-the-line-opposite-thisdifference-and-the-column-which-is-headed-by-thenumber-nearest-the-air-temperature-dry-bulbreading-examples-are-given-below-dry-bulb-thermometer-55-wet-bulb-thermometer-44-difference-11-dew-point-from-table-30-dry-bulb-thermometer-43-wet-bulb-thermometer-38-difference-5-dew-point-from-table-between-27-and-33-about-3-image340114648.htmlRM2AN9FKM–The principles of fruit-growing . rmometers should be read. Subtr.actthe reading of the wet-bulb thermometer from that ofthe dry. Find this difference in the column at theleft of the table. The dew-point will then befound at the intersection of the line opposite thisdifference and the column which is headed by thenumber nearest the air temperature (dry-bulbreading). Examples are given below: Dry-bulb thermometer 55° Wet-bulb therm^ometer 44° Difference 11° Dew-point from table 30° Dry-bulb thermometer 43° Wet-bulb thermometer 38° Difference 5^ Dew-point from table, between 27° and 33°, about 3
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434059309.htmlRF2G65325–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
Journal of experimental zoology . — Q. ^Measurement of B3 and G2 eeBjjTh of G3July 310 17 2431 14 RrsT measurement of C3 ^ Birth of C4 26- — 5ept.4 Octp 5econd measurement of C3 ^..--^^^ Measurement of C4. H :x}oo3 Figure 1 3.37 338 FRA^XIS B. SUMNER It is unfortunate that more exact data regarding humiditj^cannot be given. A suitable instrument for making thesedeterminations was not obtained until the latter part of theexperiment. A limited number of records which were madewith an ordinarj^ wet-and-dry-bulb thermometer, indicatedrelative humidities of about 76 and 38 per cent, respectively,fo Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/journal-of-experimental-zoology-q-measurement-of-b3-and-g2-eebjjth-of-g3july-310-17-2431-14-rrst-measurement-of-c3-birth-of-c4-26-5ept4-octp-5econd-measurement-of-c3-measurement-of-c4-h-xoo3-figure-1-337-338-fraxis-b-sumner-it-is-unfortunate-that-more-exact-data-regarding-humiditjcannot-be-given-a-suitable-instrument-for-making-thesedeterminations-was-not-obtained-until-the-latter-part-of-theexperiment-a-limited-number-of-records-which-were-madewith-an-ordinarj-wet-and-dry-bulb-thermometer-indicatedrelative-humidities-of-about-76-and-38-per-cent-respectivelyfo-image340016217.htmlRM2AN5249–Journal of experimental zoology . — Q. ^Measurement of B3 and G2 eeBjjTh of G3July 310 17 2431 14 RrsT measurement of C3 ^ Birth of C4 26- — 5ept.4 Octp 5econd measurement of C3 ^..--^^^ Measurement of C4. H :x}oo3 Figure 1 3.37 338 FRA^XIS B. SUMNER It is unfortunate that more exact data regarding humiditj^cannot be given. A suitable instrument for making thesedeterminations was not obtained until the latter part of theexperiment. A limited number of records which were madewith an ordinarj^ wet-and-dry-bulb thermometer, indicatedrelative humidities of about 76 and 38 per cent, respectively,fo
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434059323.htmlRF2G6532K–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
. The principles of hygiene; a practical manual for students, physicians, and health-officers . FlG. 2.—Daniells hygrometer : a, bulb surrounded with cotton cloth; b, ther-mometer; c, bulb containing thermometer. direct, as Daniells (Fig. 2), Dines, and Regnaults,and determine directly the dew-point of the atmosphere;or indirect, as the wet- and dry-bulb thermometer, orpsychrometer (Fig. 3), and the hair hygrometer (Fig. 4).The important items of information to be derived fromobservations with hygrometers are: The dew-point, thevapor-tension or absolute humidity, and the relative hu- 38 AIR. m Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-principles-of-hygiene-a-practical-manual-for-students-physicians-and-health-officers-flg-2daniells-hygrometer-a-bulb-surrounded-with-cotton-cloth-b-ther-mometer-c-bulb-containing-thermometer-direct-as-daniells-fig-2-dines-and-regnaultsand-determine-directly-the-dew-point-of-the-atmosphereor-indirect-as-the-wet-and-dry-bulb-thermometer-orpsychrometer-fig-3-and-the-hair-hygrometer-fig-4the-important-items-of-information-to-be-derived-fromobservations-with-hygrometers-are-the-dew-point-thevapor-tension-or-absolute-humidity-and-the-relative-hu-38-air-m-image370076879.htmlRM2CE2CRB–. The principles of hygiene; a practical manual for students, physicians, and health-officers . FlG. 2.—Daniells hygrometer : a, bulb surrounded with cotton cloth; b, ther-mometer; c, bulb containing thermometer. direct, as Daniells (Fig. 2), Dines, and Regnaults,and determine directly the dew-point of the atmosphere;or indirect, as the wet- and dry-bulb thermometer, orpsychrometer (Fig. 3), and the hair hygrometer (Fig. 4).The important items of information to be derived fromobservations with hygrometers are: The dew-point, thevapor-tension or absolute humidity, and the relative hu- 38 AIR. m
A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-meteorological-thermometer-consisting-of-a-maximum-and-minimum-thermometer-is-placed-in-a-meteorological-cage-this-tool-is-used-to-collect-air-temp-image434059324.htmlRF2G6532M–A meteorological thermometer consisting of a maximum and minimum thermometer is placed in a meteorological cage. This tool is used to collect air temp
. The principles of hygiene; a practical manual for students, physicians, and health-officers . FlG. 3.—Psychrometer : a, dry- FlG. 4.—The hair hygrometer : a, bulb thermometer; /;, wet-bulb ther- b, point of suspension of hair; p, mometer; c, reservoir containing pointer; c, d, scale; w, weight,water. ure is precipitated. This temperature is indicateddirectly by the condensation hygrometers, or it can becalculated from the readings of the psychrometer, withthe aid of tables or by means of Apjohns formula: ELASTIC FORCE OF VAPOR. 39 E = elastic force of vapor corresponding to the dew-point, e Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-principles-of-hygiene-a-practical-manual-for-students-physicians-and-health-officers-flg-3psychrometer-a-dry-flg-4the-hair-hygrometer-a-bulb-thermometer-wet-bulb-ther-b-point-of-suspension-of-hair-p-mometer-c-reservoir-containing-pointer-c-d-scale-w-weightwater-ure-is-precipitated-this-temperature-is-indicateddirectly-by-the-condensation-hygrometers-or-it-can-becalculated-from-the-readings-of-the-psychrometer-withthe-aid-of-tables-or-by-means-of-apjohns-formula-elastic-force-of-vapor-39-e-=-elastic-force-of-vapor-corresponding-to-the-dew-point-e-image370076833.htmlRM2CE2CNN–. The principles of hygiene; a practical manual for students, physicians, and health-officers . FlG. 3.—Psychrometer : a, dry- FlG. 4.—The hair hygrometer : a, bulb thermometer; /;, wet-bulb ther- b, point of suspension of hair; p, mometer; c, reservoir containing pointer; c, d, scale; w, weight,water. ure is precipitated. This temperature is indicateddirectly by the condensation hygrometers, or it can becalculated from the readings of the psychrometer, withthe aid of tables or by means of Apjohns formula: ELASTIC FORCE OF VAPOR. 39 E = elastic force of vapor corresponding to the dew-point, e
. A manual of the timbers of the world : their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Timber. THE ARTIFICIAL SEASONINCx OF TIMBER 409 The wet and dry bulb mcrcur}-' thermometers arc therefore the basis of all readings. These, however, in the ordinary form, have to be observed frequently, and the readings noted down. In order to keep a continuous and autographic record of the conditions in the dryer, the recording wet and dry bulb hygrometer is used. This instrument is. Recording Hygrometer (also Thermometer) as placed Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-manual-of-the-timbers-of-the-world-their-characteristics-and-uses-to-which-is-appended-an-account-by-s-fitzgerald-of-the-artificial-seasoning-of-timber-timber-the-artificial-seasonincx-of-timber-409-the-wet-and-dry-bulb-mcrcur-thermometers-arc-therefore-the-basis-of-all-readings-these-however-in-the-ordinary-form-have-to-be-observed-frequently-and-the-readings-noted-down-in-order-to-keep-a-continuous-and-autographic-record-of-the-conditions-in-the-dryer-the-recording-wet-and-dry-bulb-hygrometer-is-used-this-instrument-is-recording-hygrometer-also-thermometer-as-placed-image231979612.htmlRMRDBGA4–. A manual of the timbers of the world : their characteristics and uses : to which is appended an account by S. Fitzgerald of the artificial seasoning of timber. Timber. THE ARTIFICIAL SEASONINCx OF TIMBER 409 The wet and dry bulb mcrcur}-' thermometers arc therefore the basis of all readings. These, however, in the ordinary form, have to be observed frequently, and the readings noted down. In order to keep a continuous and autographic record of the conditions in the dryer, the recording wet and dry bulb hygrometer is used. This instrument is. Recording Hygrometer (also Thermometer) as placed
. Dairy laboratory guide. Dairying. APPENDIX TO EXERCISE XV 129. The Hygbodeik With this instrument the Relative Humidity of the air may be determined without the use of tables. See Exercise XV. To find the Relative Humidity swing the index hand to the left of the chart, and adjust the sliding pointer to that degree of the Wet Bulb Thermometer Scale at which the mercury stands. Then swing the index hand to the right, until the sliding pointer intersects the curved line which extends downward to the left from the degree of the Dry Bulb Thermometer Scale at which the mercury stands. At this inte Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/dairy-laboratory-guide-dairying-appendix-to-exercise-xv-129-the-hygbodeik-with-this-instrument-the-relative-humidity-of-the-air-may-be-determined-without-the-use-of-tables-see-exercise-xv-to-find-the-relative-humidity-swing-the-index-hand-to-the-left-of-the-chart-and-adjust-the-sliding-pointer-to-that-degree-of-the-wet-bulb-thermometer-scale-at-which-the-mercury-stands-then-swing-the-index-hand-to-the-right-until-the-sliding-pointer-intersects-the-curved-line-which-extends-downward-to-the-left-from-the-degree-of-the-dry-bulb-thermometer-scale-at-which-the-mercury-stands-at-this-inte-image232097208.htmlRMRDGXA0–. Dairy laboratory guide. Dairying. APPENDIX TO EXERCISE XV 129. The Hygbodeik With this instrument the Relative Humidity of the air may be determined without the use of tables. See Exercise XV. To find the Relative Humidity swing the index hand to the left of the chart, and adjust the sliding pointer to that degree of the Wet Bulb Thermometer Scale at which the mercury stands. Then swing the index hand to the right, until the sliding pointer intersects the curved line which extends downward to the left from the degree of the Dry Bulb Thermometer Scale at which the mercury stands. At this inte
. A laboratory course in plant physiology. Plant physiology; Plant ecology. ELIMINATION 183 Belfort Observatory, Ealtimore, Md. The Draper forms are made at less cost by the Draper Manufacturing Company of New York City. All of these instruments are prone to work out of true and should be standardized often by comparison with standard thermometer, wet- and dry-bulb thermom- eters, and mercurial barometer respectively. Nor do they record with minute accuracy, though they are correct enough for most purposes. Photometers. No form of light recorder suitable for physiological uses yet exists, for Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-laboratory-course-in-plant-physiology-plant-physiology-plant-ecology-elimination-183-belfort-observatory-ealtimore-md-the-draper-forms-are-made-at-less-cost-by-the-draper-manufacturing-company-of-new-york-city-all-of-these-instruments-are-prone-to-work-out-of-true-and-should-be-standardized-often-by-comparison-with-standard-thermometer-wet-and-dry-bulb-thermom-eters-and-mercurial-barometer-respectively-nor-do-they-record-with-minute-accuracy-though-they-are-correct-enough-for-most-purposes-photometers-no-form-of-light-recorder-suitable-for-physiological-uses-yet-exists-for-image232309177.htmlRMRDXGM9–. A laboratory course in plant physiology. Plant physiology; Plant ecology. ELIMINATION 183 Belfort Observatory, Ealtimore, Md. The Draper forms are made at less cost by the Draper Manufacturing Company of New York City. All of these instruments are prone to work out of true and should be standardized often by comparison with standard thermometer, wet- and dry-bulb thermom- eters, and mercurial barometer respectively. Nor do they record with minute accuracy, though they are correct enough for most purposes. Photometers. No form of light recorder suitable for physiological uses yet exists, for
. Bulletin. Agriculture -- Ontario. 83 more rapid the evaporation, the higher the humidity the slower the evap- oration. Hence the cooling- produced on the wet thermometer is an inverse measure of the humidity. As soon as these facts were correlated in this manner a secondary but simple method of determining- humidity was at hand. A large number of determinations by some absolute method was made, and the results tabulated, and at the same time wet- and dry-bulb readings were taken and set down in the same tables opposite the corresponding humidities. When sufficient readings had been taken a l Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/bulletin-agriculture-ontario-83-more-rapid-the-evaporation-the-higher-the-humidity-the-slower-the-evap-oration-hence-the-cooling-produced-on-the-wet-thermometer-is-an-inverse-measure-of-the-humidity-as-soon-as-these-facts-were-correlated-in-this-manner-a-secondary-but-simple-method-of-determining-humidity-was-at-hand-a-large-number-of-determinations-by-some-absolute-method-was-made-and-the-results-tabulated-and-at-the-same-time-wet-and-dry-bulb-readings-were-taken-and-set-down-in-the-same-tables-opposite-the-corresponding-humidities-when-sufficient-readings-had-been-taken-a-l-image234205022.htmlRMRH0XW2–. Bulletin. Agriculture -- Ontario. 83 more rapid the evaporation, the higher the humidity the slower the evap- oration. Hence the cooling- produced on the wet thermometer is an inverse measure of the humidity. As soon as these facts were correlated in this manner a secondary but simple method of determining- humidity was at hand. A large number of determinations by some absolute method was made, and the results tabulated, and at the same time wet- and dry-bulb readings were taken and set down in the same tables opposite the corresponding humidities. When sufficient readings had been taken a l
. Carnegie Institution of Washington publication. 30 THE RELATION OF DESERT PLANTS TO itself, the stationary wet and dry bulb thermometer, placed in an open position where air currents may affect it, is the most reliable instrument for determining evaporating power. Relative humidity computed from readings of this instrument should not be the same as when com- puted from psychrometer readings, § but should bear a closer relation to the losses from the evaporimeter. The power of air currents to ac- celerate evaporation was constantly observed in the progress of the work at the Desert Laboratory Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/carnegie-institution-of-washington-publication-30-the-relation-of-desert-plants-to-itself-the-stationary-wet-and-dry-bulb-thermometer-placed-in-an-open-position-where-air-currents-may-affect-it-is-the-most-reliable-instrument-for-determining-evaporating-power-relative-humidity-computed-from-readings-of-this-instrument-should-not-be-the-same-as-when-com-puted-from-psychrometer-readings-but-should-bear-a-closer-relation-to-the-losses-from-the-evaporimeter-the-power-of-air-currents-to-ac-celerate-evaporation-was-constantly-observed-in-the-progress-of-the-work-at-the-desert-laboratory-image233512859.htmlRMRFWC0Y–. Carnegie Institution of Washington publication. 30 THE RELATION OF DESERT PLANTS TO itself, the stationary wet and dry bulb thermometer, placed in an open position where air currents may affect it, is the most reliable instrument for determining evaporating power. Relative humidity computed from readings of this instrument should not be the same as when com- puted from psychrometer readings, § but should bear a closer relation to the losses from the evaporimeter. The power of air currents to ac- celerate evaporation was constantly observed in the progress of the work at the Desert Laboratory
. Better fruit. Fruit-culture. Fic. 5- SLING PSYCHROMETER which it may be whirled. The bulb of one of the thermometers is wrapped in clean muslin. In taking an observa- tion the muslin is thoroughly wet and the instrument rapidly whirled. As soon as the moisture on the wet bulb begins to evaporate the wet thermome- ter will show a lower temperature than is indicated by the dry thermometer. The drier the air is the gi-eater will be the difference between the readings of the two thermometers. By means of tables that have been prepared the dew- point can be determined from the read- ings of this Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/better-fruit-fruit-culture-fic-5-sling-psychrometer-which-it-may-be-whirled-the-bulb-of-one-of-the-thermometers-is-wrapped-in-clean-muslin-in-taking-an-observa-tion-the-muslin-is-thoroughly-wet-and-the-instrument-rapidly-whirled-as-soon-as-the-moisture-on-the-wet-bulb-begins-to-evaporate-the-wet-thermome-ter-will-show-a-lower-temperature-than-is-indicated-by-the-dry-thermometer-the-drier-the-air-is-the-gi-eater-will-be-the-difference-between-the-readings-of-the-two-thermometers-by-means-of-tables-that-have-been-prepared-the-dew-point-can-be-determined-from-the-read-ings-of-this-image234719699.htmlRMRHTBAB–. Better fruit. Fruit-culture. Fic. 5- SLING PSYCHROMETER which it may be whirled. The bulb of one of the thermometers is wrapped in clean muslin. In taking an observa- tion the muslin is thoroughly wet and the instrument rapidly whirled. As soon as the moisture on the wet bulb begins to evaporate the wet thermome- ter will show a lower temperature than is indicated by the dry thermometer. The drier the air is the gi-eater will be the difference between the readings of the two thermometers. By means of tables that have been prepared the dew- point can be determined from the read- ings of this
. Cheddar cheese making. Cheese. CHEDDAR CHEESE MAKING. 71 the air its lowers the temperature. The United States Weather Bureau has prepared a table of readings with the corresponding hu- midity. The follow- ing is such a table for use in a curing room. The thermometer should be fanned brisk- ly with a good fan for three minutes and then the reading taken quickly. We first find the dry bulb reading on the chart and then find the wet bulb read- ing in the next column, and in the third column opposite the dry bulb reading is the relative humidity, or per cent, of saturation, by which we mean the Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/cheddar-cheese-making-cheese-cheddar-cheese-making-71-the-air-its-lowers-the-temperature-the-united-states-weather-bureau-has-prepared-a-table-of-readings-with-the-corresponding-hu-midity-the-follow-ing-is-such-a-table-for-use-in-a-curing-room-the-thermometer-should-be-fanned-brisk-ly-with-a-good-fan-for-three-minutes-and-then-the-reading-taken-quickly-we-first-find-the-dry-bulb-reading-on-the-chart-and-then-find-the-wet-bulb-read-ing-in-the-next-column-and-in-the-third-column-opposite-the-dry-bulb-reading-is-the-relative-humidity-or-per-cent-of-saturation-by-which-we-mean-the-image234990374.htmlRMRJ8MHA–. Cheddar cheese making. Cheese. CHEDDAR CHEESE MAKING. 71 the air its lowers the temperature. The United States Weather Bureau has prepared a table of readings with the corresponding hu- midity. The follow- ing is such a table for use in a curing room. The thermometer should be fanned brisk- ly with a good fan for three minutes and then the reading taken quickly. We first find the dry bulb reading on the chart and then find the wet bulb read- ing in the next column, and in the third column opposite the dry bulb reading is the relative humidity, or per cent, of saturation, by which we mean the
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. EESEARCHES IN SOUND. 533 From the result of this table it would appear that the sound can be heard moving at right angles to the wind better at an elevation that at the surface—a result not anticipated. OBSERVATIONS ON TUE EFFECT OF WIND ON SOUND. This series was commenced on the 2d of September. Barometer, 30.3 inches; thermometer, dry-bulb, 70o.5 F. wet-bulb, G7o.5. Wind at the surface of sea was six miles per hour, and variable; at 3 i&g Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/annual-report-of-the-board-of-regents-of-the-smithsonian-institution-smithsonian-institution-smithsonian-institution-archives-discoveries-in-science-eesearches-in-sound-533-from-the-result-of-this-table-it-would-appear-that-the-sound-can-be-heard-moving-at-right-angles-to-the-wind-better-at-an-elevation-that-at-the-surfacea-result-not-anticipated-observations-on-tue-effect-of-wind-on-sound-this-series-was-commenced-on-the-2d-of-september-barometer-303-inches-thermometer-dry-bulb-70o5-f-wet-bulb-g7o5-wind-at-the-surface-of-sea-was-six-miles-per-hour-and-variable-at-3-ig-image236173483.htmlRMRM6HK7–. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. EESEARCHES IN SOUND. 533 From the result of this table it would appear that the sound can be heard moving at right angles to the wind better at an elevation that at the surface—a result not anticipated. OBSERVATIONS ON TUE EFFECT OF WIND ON SOUND. This series was commenced on the 2d of September. Barometer, 30.3 inches; thermometer, dry-bulb, 70o.5 F. wet-bulb, G7o.5. Wind at the surface of sea was six miles per hour, and variable; at 3 i&g
. Aerographer's Mate 3 & 2. United States. Navy; Meteorology; Oceanography. 1. Sliding door. 2. Spring contact. 3. Battery com- partment. 4. Water bottle. 5. Bottle com- partment. 6. Hinge pin. 7. Thermometer holder. Wet-bulb wick. 9. Knob. 10. Exhaust ports. 11. Sliding air intake. Figure 4-6.— Rotor psychrometer. 209.90 209.116 Figure 4-7. —Hand electric psychrometer ML- 450A/UM. corrosion or pitting. No lubrication is necessary for this instrument; no special tools are re- quired for its overhaul. BATTERIES. —Three size D (standard flash- light) dry cell batteries are required. To inser Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/aerographers-mate-3-amp-2-united-states-navy-meteorology-oceanography-1-sliding-door-2-spring-contact-3-battery-com-partment-4-water-bottle-5-bottle-com-partment-6-hinge-pin-7-thermometer-holder-wet-bulb-wick-9-knob-10-exhaust-ports-11-sliding-air-intake-figure-4-6-rotor-psychrometer-20990-209116-figure-4-7-hand-electric-psychrometer-ml-450aum-corrosion-or-pitting-no-lubrication-is-necessary-for-this-instrument-no-special-tools-are-re-quired-for-its-overhaul-batteries-three-size-d-standard-flash-light-dry-cell-batteries-are-required-to-inser-image237911526.htmlRMRR1PG6–. Aerographer's Mate 3 & 2. United States. Navy; Meteorology; Oceanography. 1. Sliding door. 2. Spring contact. 3. Battery com- partment. 4. Water bottle. 5. Bottle com- partment. 6. Hinge pin. 7. Thermometer holder. Wet-bulb wick. 9. Knob. 10. Exhaust ports. 11. Sliding air intake. Figure 4-6.— Rotor psychrometer. 209.90 209.116 Figure 4-7. —Hand electric psychrometer ML- 450A/UM. corrosion or pitting. No lubrication is necessary for this instrument; no special tools are re- quired for its overhaul. BATTERIES. —Three size D (standard flash- light) dry cell batteries are required. To inser
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