Research on Advantages of DewPoint Humidity Measurement Technology
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Abstract:
There are a variety of humidity measurement techniques, and the dewpoint humidity measurement technology has great advantages The instrument designed based on dewpoint humidity measurement technology can achieve higher accuracy in the whole range In this paper, based on the calculation formula of saturated vapor pressure from 〖WTBX〗Guide to Meteorological Instrument Observation Methods〖WTBZ〗, the standard uncertainty of relative humidity under different degrees of standard uncertainty of dew point (frost point) temperature is calculated, combined with the theory of error transfer of uncertainty, to explore the advantages of dewpoint humidity measurement technology in accuracy The results show that the standard uncertainty of relative humidity is larger under low temperature and high humidity in the temperature range of -60 to 60 ℃; when the environment temperature and dew point (frost point) measurement standard uncertainty are 01 ℃, the relative humidity measurement standard uncertainty is less than 20%, which meets the minimum requirements of standard uncertainty of humidity standard in the 〖WTBX〗Guide〖WTBZ〗 〖WTBX〗to Meteorological Observation Methods〖WTBZ〗; when the environment temperature and dew point (frost point) measurement standard uncertainty are 03 ℃ (or 05 ℃) and 01 ℃, relative humidity measurement standard uncertainty is less than 43% (or 70%) It can be seen that in the case of low temperature, the relative humidity measurement standard uncertainty of the dew point instrument has obvious advantages
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.