ACCUMULATING SEISMIC STATION WITH ZERO-SHIFT DIGITAL CORRECTION Russian patent published in 2005 - IPC

FIELD: geophysical instrument engineering.

SUBSTANCE: the station consists of series-connected seismoreceiver, amplifier, analog-to-digital converter, adder, on-line storage and a digital-to-analog converter, as well as of an impact action moment mark sensor, control device and a zero-shift digital correction device is connected to the enabling input of the control device. The oscillator output is connected to the clock input of the control device. Three control outputs of the control device are connected to the respective control inputs of the analog-to-digital converter, adder, an on-line storage. The first input of the zero-shift digital correction device is connected to the fourth control output of the control device, and the output is connected to the input of the on-line storage. The zero-shift digital correction device computes a correction in compliance with the following algorithm: U_shift=(a₁+a₂+…+a_N)/N, where a₁, a₂,…,a_N - amplitudes of the signal accesses of one seismic route N-quality of accesses.

EFFECT: minimized time of correction and computing capacities.

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