| 摘要 |
measurement and control over air humidity in wide interval of temperatures, temperatures below 0 C included. SUBSTANCE: analyzer incorporates humidity sensor- metal wire heated by highly stabilized electric current and placed into space of measurement cell which temperature is stabilized. Voltage across sensor is compared with reference voltage and difference signal is amplified by linear differentiating amplifier across which output recorder calibrated in units of absolute air humidity is placed. EFFECT: raised sensitivity, exclusion of errors introduced by variations of ambient temperature, simplified calibration, widened functional capabilities. 2 cl, 1 dwg
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