DEVICE FOR MEASURING CAPACITANCE OF CAPACITIVE PICKUP

摘要

FIELD: measuring technique. ^ SUBSTANCE: device can be used in measuring aids for measurement and checking of non-electric values by means of capacitive pickups. Device for measuring capacitance of capacitive pickup has microcontroller, digital indicator, and oscillator. Measured capacitance capacitive pickup is connected with time-setting circuit of oscillator. Output of oscillator is connected with counting input of microcontroller's counter. One of outputs of microcontroller is connected with generation resolution input of oscillator. Pulse-width modulator filling-up factor converter is brought into device additionally as well as integrating RC-circuit. Output of pulse-with modulator of microcontroller is connected with inputs of integrating RC-circuit and output of pulse-width signal/digital code modulator. Output of the latter is connected with digital indicator. Digital and analog signals can be formed at output of device. ^ EFFECT: widened functional abilities. ^ 1 dwg