FIELD: electricity.
SUBSTANCE: voltage-frequency conversion scheme contains scheme of resistance-capacitance (RC) generator that consists of the first resistance element, the first capacitor, the second resistance element, the first logic scheme and the first switching element. Blood pressure measurement device contains cuff to be wrapped around the place of measurement for a person, pressure measurement tool to measure pressure in the above cuff, at that the tool contains a piezoresistive sensor (Rp1-Rp4) to generate pressure in compliance with cuff pressure and scheme of RC- generator.
EFFECT: creating high-accuracy scheme for voltage-frequency conversion.
5 cl, 9 dwg
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