EARTH CRUST ELECTROMAGNETIC SOUNDING SYSTEM Russian patent published in 2008 - IPC G01V3/08 

FIELD: physics.

SUBSTANCE: system includes recorder containing multichannel module of analog signal reception and transform; each channel of module includes low-pass filter, analog amplifier and analog-to-digital converter. The system also includes data control and processing module containing interconnected numeric processor, data memory and master microcontroller with program memory. The recorder contains AD converters overload detectors designed as timing units included in numerical processor. The recorder also contains built-in screen and keyboard assembly, connected through data exchange bus to master microcontroller with program memory of data control and processing module. Differential operational amplifiers with controlled input are used as analog amplifiers in channels of module of analog signal reception and transform. The recorder contains comprised in numerical processor timing units computing signal invariable component in channels of module of analog signal reception and transform. The recorder input contains units, comprised in numerical processor timing, computing signal invariable component in channels of module of analog signal reception and transform. Input of each specified unit is connected through data exchange bus to master microcontroller with program memory, and output is connected through digital-to-analog converter to driving input of differential operational amplifier mounted in corresponding channel of module of analog signal reception and transform.

EFFECT: improved accuracy and reliability of received data and enhanced ease of use.

5 cl, 1 dwg