Humidity sensor temperature coefficient

Humidity sensor temperature coefficient of humidity in addition to the humidity sensitive element , but is also sensitive to temperature , the temperature coefficient is generally 0.2 ~ 0.8% RH / ℃ range, and some of the humidity sensor at different relative humidities , the temperature Coefficient another difference. Linear drift , which requires increase in the circuit temperature compensated . Using SCM software compensation , with or without temperature compensation of the humidity Engine Coolant Temp Sensor is not guarantee the accuracy of the whole temperature range , humidity sensor drift curve linearization directly affect the compensation effect of nonlinear drift compensation is often no better results only use hardware temperature compensation will obtain the true follower of the compensation effect. Humidity sensor operating temperature range is also an important parameter . Most humidity sensor is difficult to work in more than 40 ℃ .