FIELD: electricity.
SUBSTANCE: metering transducer of capacitance and resistance into binary code comprises microcontroller, reference resistor, capacitance sensor, capacitor of reference capacitance and resistor of measured resistance. Resistors of reference and measured resistance by the first terminals are connected to the first plates, accordingly, of capacitance sensor and capacitor of reference capacitance. Additionally resistive divider of voltage is added into metering transducer. The first terminals of voltage divider resistors are connected to the first input of analogue comparator of microcontroller, and the second ones - to terminals of microcontroller supply.
EFFECT: higher accuracy of measurement.
1 dwg
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