The direct measurement of humidity by thermo-couple circuit

We measured the absolute humidity by a thermo-couple circuit, which converts the variation of humidity in to the variation of the reading of galvanometer in directly proportional relation.The measured value of humidity by our method shows a fairly good agreement with the measured value by Assmann psychrometer.The time lag of our method is much smaller than that of Assmann psychrometer.When the difference between the standard temperature and the wet-bulb temperature reaches a large value, the measurement does not show the true value of humidity.This method has some advantages over other methods to record, the rapidly changing humidity with precision.