Humidity - Wikipedia, the free encyclopedia
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Humidity is the amount of water vapour in the air. In daily language the term "humidity" is normally taken to mean relative humidity. Relative humidity is defined as the ratio of the partial pressure...
en.wikipedia.org/wiki/Humidity
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Hygrometer - Wikipedia, the free encyclopedia
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Hygrometers are instruments used for measuring relative humidity. A simple form of a hygrometer is specifically known as a psychrometer and consists of two thermometers, one of which includes a d...
en.wikipedia.org/wiki/Hygrometer
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Most of these measures of humidity are not easily determined directly. It is actually easier to measure relative humidity. ... (Question: which measure of humidity are we using here?
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daphne.palomar.edu/jthorngren/measures.htm
daphne.palomar.edu/jthorngren/measures.htm
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USATODAY.com Latest News ... Weather observers can use a sling psychrometer to measure the amount of water vapor in the air - that is, its humidity. ... One thermometer measures the air temperature while the other one measures the wet-bulb temperatures. (Related information: Understanding humidity, definitions)
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www.usatoday.com/weather/wsling.htm
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USATODAY.com Latest News ... An instrument that uses hair to measure humidity is known as a hair hygrometer. This instrument uses strands of human or horse hair with the oils removed attached to levers that magnify a small change in hair length.
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www.usatoday.com/weather/whairhyg.htm
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In a gas like the atmosphere temperature is a measure of the average speed of the molecules. Scientists would say temperature is a measure of the average KINETIC ENERGY of ... Dew point temperature is a measure of humidity. If air is cooled eventually enough energy will be removed for water vapor to begin to condense.
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www.shorstmeyer.com/wxfaqs/humidity/humidity.html
www.shorstmeyer.com/wxfaqs/humidity/humidity.html
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In 1783 Swiss physicist and geologist Horace Bénédict de Saussure built the first hygrometer using a human hair to measure humidity. ... A hygrometer is an instrument used to measure the moisture content or the humidity of air or any gas. The best known type of hygrometer is the "dry and wet-bulb psychrometer",
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inventors.about.com/library/inventors/blhygrometer.htm
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By combining the responses of an Analog Devices (www.analog.com) AD590 temperature sensor and a Humirel (www.humirel.com) HS1101 humidity sensor, you can generate a single TTL-level signal containing information from both sensors (Figure 1). This design uses a 74HC123 monostable multivibrator, IC1, to form a free...
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www.edn.com/article/CA152878.html
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MadSci Network: Earth Sciences ... Re: Can we precisely measure humidity etc. at the Earth surface from orbit? Date: Tue Sep 22 20:54:48 1998; Posted By: Nezette Rydell, forecaster,National Weather Service; Area of science: Earth Sciences;
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www.madsci.org/posts/archives/oct98/906592042.Es.r.html
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