DEVICE FOR MEASURING INFRASONIC VIBRATIONS OF MEDIUM Russian patent published in 2020 - IPC G01H11/00 

FIELD: measurement.

SUBSTANCE: invention relates to measuring equipment. Device for measuring infrasonic vibrations of a medium comprises a housing, four membranes associated with the environment and medium inside the housing, four capacitive displacement sensors of the membrane and four amplifier-demodulators, generator, bellows, constant-domain filter, first comparator with inverse input, two AND circuits, two timers, second comparator, five switches, micromotor with drive, third comparator with inverse input, OR circuit, as well as a fourth comparator, a first amplifier and a first analogue adder, a second amplifier, a third amplifier, a fourth amplifier and a second analogue adder, a third analogue adder, twelve inputs, a direct current amplifier and a unit of optocouplers, as well as adjustable voltage stabilizer, connected by input to positive of power supply, first feedback unit and first magnetoelectric transducer, second feedback unit and second magnetoelectric transducer, third feedback unit and third magnetoelectric transducer, a fourth feedback unit and a fourth magnetoelectric transducer, wherein the units of the device are connected to each other in a certain manner.

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

1 cl, 3 dwg