【摘要】 在介绍GPS技术的基础上,结合GPS授时功能,研制出一种矿井自记式地震仪.该仪器采用分布式采集、独立存储、集中回收的思想,为了实现多台仪器之间的严格时钟同步,在该仪器中使用了温度补偿晶振及相应的分频电路.给出了GPS对时电路、授时流程和仪器的实验测试结果.更多还原

【Abstract】 A mine seismic recorder is developed based on the timing function of GPS.For the precise clock synchronization among different mine seismic recorders,a temperature compensation crystal oscillator and corresponding frequency division circuit are used in the recorder.A GPS timing circuit and timing flow chart is also provided.This seismic recorder can record and store data independendy and collect data after data acquisition,the data acquisition experiment result of the recorder is presented.更多还原