SEISMIC SENSOR Russian patent published in 2020 - IPC G01V1/16 G01V1/18 

FIELD: measurement.

SUBSTANCE: invention relates to measurement equipment, in particular to seismometry, and can be used for seismic monitoring. Disclosed is a seismometer, having a housing, a pendulum, a first spring, an elastic first support, a generator, a first analogue output, in series connected to a first capacitive displacement sensor, a first amplifier, a first demodulator, a first feedback unit and a first magnetoelectric transducer. At that, pendulum is mechanically connected to first spring, with elastic first support, with first capacitive displacement sensor and with first magnetoelectric transducer, first capacitive displacement sensor, first spring, resilient first support and first magnetoelectric transducer are mechanically connected to housing, and first capacitive displacement sensor and first demodulator are connected to generator. Additionally, it comprises series-connected constant-domain filter, first comparator with inverse input, first OR circuit and timer, in-series connected second comparator with inverse input and second OR circuit, as well as first, second, third, fourth and fifth inputs, third comparator, fourth comparator, differential amplifier, first two-channel switch connected by inputs to outputs of differential amplifier, inverting amplifier connected by input and output to first and second inputs of differential amplifier, respectively, a second two-channel switch connected by inputs to the outputs of the first two-channel key, a micromotor with a drive, a second spring, an elastic second support, series-connected second capacitive displacement sensor, a second amplifier, a second demodulator, a second feedback unit and a second magnetoelectric transducer, as well as a base and a second analogue output, wherein the second elastic support, second capacitive displacement sensor and second magnetoelectric transducer are mechanically connected to housing and base, second spring is mechanically connected to housing and micromotor with drive fixed on base and connected to outputs of second two-channel key, and units of device are connected to each other in certain manner.

EFFECT: technical result is high accuracy of measuring seismic vibrations.

1 cl, 1 dwg