Two-temperature humidity generator KW-2

Abstract

A construction and metrological properties of 'two- temperature' humidity generator KW-2 are presented in the paper. Changes in humidity are obtained by changing the temperature of moist air, for which exact dew point is obtained in saturator. The calibrator has ability to ensure relative humidity from 5 percent RH up to 100 percent in wide range of temperatures and with a good accuracy. It makes possible not only usual calibration of humidity sensors but also testing of sensors temperature characteristics. Important advantages of the calibrator are simple and cheap design and low operating cost.