Research and Design of Mine Microseismic Signal Acquisition System
Miao Jie · 2022
Aiming at the problems that the existing mine microseismic signal acquisition system is expensive and versatile, a multi-channel microseismic signal acquisition system is designed. The system uses underground high frequency seismometer to pick up microseismic signals, and uses the acquisition circuit to realize the amplification, digital-to-analog conversion and digital filtering of the microseismic signal, and the filtered signals are sent to the upper computer through USART in real time by STM32 for analysis and processing. The test results show that the system can accurately collect and record the micro-seismic signals of three channels picked up by the underground high-frequency seismograph. The system has the advantages of good stability, high reliability and low cost.