FIELD: measurement technology. SUBSTANCE: proposed device has measurement head connected to source of excessive pressure through stabilizer and rotameter. Rotameter is fitted with differential-transformation converter of movement of float of rotameter. Primary winding of differential-transformation converter is shunted by capacitor and is connected to output of stabilized DC generator through interrupter. Secondary winding of differential-transformation converter is connected to input of analog-to-digital converter with memorization of maximum value which is equipped with digital indicator. EFFECT: enhanced accuracy of measurement thanks to exclusion of influence of change of network voltage. 2 dwg
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