MODULAR MULTICHANNEL MINE SEISMIC STATION Russian patent published in 2024 - IPC G01V1/00 G01V1/18 G01V1/24 

FIELD: geophysical instrument making.

SUBSTANCE: seismic station consists of an analysis unit and several measuring units, connected by a flexible cable, where the analysis unit includes a display, a keyboard, a processor unit, and each measuring unit includes a processor unit, a board with an eight-channel parallel ADC, 6 channels with amplifiers, filters, a digital-analogue circuit for correcting the zero offset of the analogue signal, and DAC, which together with ADC provides effective 24 bits (12 bits of ADC + 12 bits of DAC). Two three-component seismic detectors are connected to each measuring unit for orientation along axes X, Y, Z or six single-component seismic detectors. Data are digitized synchronously by all signal phase measuring units. Phase of the incoming signal is fixed by a moment mark sensor, which is located at the excitation source of the seismic signal. Moment mark sensor can be connected to any of the measuring units. Units are powered by built-in accumulators. In addition, spark protection unit is installed in power supply boards of all units. All units of the seismic station comply with the requirements of the type of explosion protection "intrinsically safe electric circuit".

EFFECT: small weight and dimensions of units and safety of operations in mines of all categories, including in mines hazardous in terms of emissions of gas, dust, coal and rock.

1 cl, 2 dwg