FIELD: physics; measurements.
SUBSTANCE: present invention can be used in the oil and gas industry for geophysical exploration of active wells. Equivalent circuit of the hygrometer of the compensated bore-hole consists of a metering tank, formed between the down-hole probe housing and the detecting element of the sensor, and a shunt capacitance, between the down-hole probe housing and the connector wire from the detecting element of the sensor to the sensing device on the printed circuit board. There is another cable from the hygrometer to the sensing device, which is arrange parallel to the cable of the shunt capacitance, tied to it and connected to the sensing device, forming a compensating capacitance.
EFFECT: exclusion of the effects of external factors on the shunt capacitance, such as change in position or change of the medium.
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