HYGROMETER Russian patent published in 2008 - IPC G01W1/11 

FIELD: physics.

SUBSTANCE: hygrometer contains measuring chamber, thermoelectric pile, condensation mirror contacting to the thermoelectric pile, throttling device, coolant feed and drain channels, dew point detector, control unit. The hygrometer contains second condensation mirror coupled with the throttling device and coolant feed and drain channels working surface of which is paralleled to working surface of first condensation mirrors. And condensation mirrors are attached so that to provide possibility of multiple reflections of light beams from their working surfaces.

EFFECT: improved measurement accuracy of gas dew point and expansion of measurement range.

1 dwg