一种地震波地质勘探中的新型同步触发装置

A new simultaneous trigging device for seismic exploration

本文首先分析了地震波勘探过程中数据采集时间差产生的原因,其次利用电磁感应原理设计了一种新型同步触发装置。最后,为了测试该同步触发装置的精度及可靠性,本文对设计的同步触发装置进行了测试;测试结果表明:该同步触发装置触发信号幅度约为4V,响应时间为1us,触发持续时间约为0.5ms,完全可以达到地震波勘探同步采集设备的要求。此外,相对于传统的触发装置,本文设计的同步触发装置具有更高的可靠性和更长的使用寿命,能有效的应用于地震勘探工作。

In this paper, the time difference acquiring data is firstly analyzed in process of seismic prospecting. Secondly, a novel synchronous trigger device is designed based on the electromagnetic induction principle. Finally, the synchronous trigger device is test in order to obtain its precision and reliability. Test results show that the synchronous trigger device has the properties of amplitude 4 V, response time 1 us and duration triggering time 0.5 ms, which can achieve the requirements of synchronous acquisition for the seismic prospecting equipment. In addition, the device presented in this paper has higher reliability and longer service life comparing with traditional trigger device, and can be effectively used in seismic prospecting work.