ShareOptical noncontact hygrometer technology.
Author(s) : NELSON L. D., KAHAN A. M.
Summary
Conventional hygrometers do not function well in harsh environmental conditions such as high pressure, high temperature, liquid aerosols, occasional water submersion, high flow velocity, or corrosive carrier gas. The paper discusses a humidity-measuring technique involving differential infrared measurements wherein the sample probe is a beam of light rather than a physical contact sensor. This device can be immersed in water without failure or loss of calibration, has a wide dynamic range, and has a 0.05-second response time. Field and laboratory data are presented.
Details
- Original title: Optical noncontact hygrometer technology.
- Record ID : 1993-2519
- Languages: English
- Source: ASHRAE Transactions 1992. Part 2.
- Publication date: 1992
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
- Themes: Thermodynamic measurements
- Keywords: Infrared; Measurement; Light; Hygrometry; Humidity
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HYGROMETRY BY MEANS OF THE INFRARED GAS ANALYSE...
- Author(s) : RIEMER W., ROSS R.
- Date : 1982
- Languages : English
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Near-infrared diode laser airborne hygrometer.
- Author(s) : SILVER J. A., HOVDE D. C.
- Date : 1994/05
- Languages : English
- Source: Rev. sci. Instrum. - vol. 65 - n. 5
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HUMIDITY SENSOR DESIGN PHILOSOPHY BECOMES A REA...
- Author(s) : LEE G.
- Date : 1986/10
- Languages : English
- Source: Transducer Technol. - vol. 9 - n. 4
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Beitrag zur Theorie und Messung der feuchten Luft.
- Author(s) : FREI B., EGOLF P. W.
- Date : 1999/09
- Languages : German
- Source: KI Luft Kältetech. - n. 9
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GAUGING OF THE INSTRUMENTS FOR MEASURING HUMIDITY.
- Date : 1983/03
- Languages : German
- Source: Kälte + Klimatechnik (Die) - vol. 36 - n. 3
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