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Evaluation of Uncertainty in Humidity Indication Error Measurement of Temperature and Humidity Sensors

Huili Yu

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Abstract

According to JJF 1076-2001 Calibration Specification of Humidity Sensors,the humidity indication error measurement of temperature and humidity sensors(handheld HM70 of VAISALA) was researched.The standard devices include a secondary standard divided flow humidity generator,a chilled-mirror dew-point hygrometer,and a platinum resistance thermometer.The method of humidity measurement uncertainty evaluation was introduced.The expanded uncertainty of measured humidity was 1.2%RH ~1.7%RH(k=2) when the standard humidity was 10%RH~90%RH.

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What this paper is about

According to JJF 1076-2001 Calibration Specification of Humidity Sensors,the humidity indication error measurement of temperature and humidity sensors(handheld HM70 of VAISALA) was researched.The standard devices include a secondary standard divided flow humidity generator,a chilled-mirror dew-point hygrometer,and a platinum resistance thermometer.The method of humidity measurement uncertainty evaluation was introduced.The expanded uncertainty of measured humidity was 1.2%RH ~1.7%RH(k=2) when the standard humidity was 10%RH~90%RH.

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Available abstract

According to JJF 1076-2001 Calibration Specification of Humidity Sensors,the humidity indication error measurement of temperature and humidity sensors(handheld HM70 of VAISALA) was researched.The standard devices include a secondary standard divided flow humidity generator,a chilled-mirror dew-point hygrometer,and a platinum resistance thermometer.The method of humidity measurement uncertainty evaluation was introduced.The expanded uncertainty of measured humidity was 1.2%RH ~1.7%RH(k=2) when the standard humidity was 10%RH~90%RH.

Key concepts: Hygrometer, Humidity, Dew point, Calibration, Environmental science, Thermometer, Meteorology, Temperature measurement

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