DEVICE FOR MEASURING INFRASONIC VIBRATIONS OF MEDIUM Russian patent published in 2020 - IPC G01V1/16 G01H11/06 G01P15/125 

FIELD: measurement.

SUBSTANCE: invention relates to measurement equipment, in particular, to measurement of infrasound oscillations of gaseous or liquid medium. Disclosed is a device for measuring infrasonic vibrations of a medium, having a housing, a membrane associated with the environment and medium inside the housing, series-connected capacitance sensor of movement of the membrane and amplifier-demodulator, as well as analogue output of the device and a generator connected to a capacitive sensor and amplifier-demodulator. Besides, device additionally comprises bellows, in-series connected constant-domain filter, first comparator with inverse input, first AND circuit, first and first control timer and control input, in-series connected second comparator, second AND circuit, second timer and second key control input, as well as first, second, third, fourth, fifth and sixth inputs, third switch, fourth switch, actuator micromotor, mechanically connected to bellows, connected between outputs of first and fourth keys, series-connected third comparator with inverse input, OR circuit and control input of fifth switch, as well as fourth comparator connected to second input of OR circuit, seventh and eighth inputs.

EFFECT: technical result is high accuracy of measuring infrasound vibrations of medium.

1 cl, 1 dwg