PSYCHROMETRIC HUMIDITY METER

摘要

FIELD: measurement technology. SUBSTANCE: invention is intended for measurement of relative humidity of air. Psychrometric humidity meter presents psychrometer with thermoelectric sensitive element including noninverting operational amplifier 3 with semiconductor temperature-sensitive resistor placed into feedback of amplifier as corrector 2 of psychrometric characteristics. Semiconductor thermopile is used in the capacity of source 1 of thermal emf. Use of semiconductor temperature-sensitive resistor as transducer of temperature correction expands range and enhanced accuracy of measurement of relative humidity. Proposed method is convenient and reliable in use. EFFECT: expanded range and enhanced accuracy of psychromatic humidity meter. 1 cl, 3 dwg