地震勘探方法被广泛应用于煤炭、石油、天然气等资源探测。采集同步精度是地震数据采集系统的一项重要技术指标。文章通过分析地震勘探系统的几种同步方法,提出一款新型一体化折射地震仪,介绍该套折射地震仪同步采集的实现方法,即GPS授时同步技术与高精度恒温晶振相结合,采用FPGA设计秒脉冲同步电路、晶振驯服电路来解决由于星历变化或障碍物屏蔽导致个别折射仪接收不到GPS信号而不能同步的问题。 Seismic exploration methods are widely used in coal, petroleum, natural gas and other resources exploration. Acquisition synchronization accuracy is an important seismic data acquisition system technical indicators. By analyzing several synchronization methods of seismic exploration system, this paper presents a new integrated refraction seismometer, introduces the realization method of synchronous acquisition of the set of refraction seismometers, that is, GPS timing synchronization technology combined with high-precision thermostatic crystal oscillator and FPGA design Second pulse synchronization circuit, the crystal oscillator to tame the circuit to solve the ephemeris change or obstruction shielding individual refractor can not receive the GPS signal can not be synchronized.