【摘要】 布拉格光栅(FBG)检波器是一种新型的光纤检波器,是根据光纤折射率随照射光强的变化而变化的光敏特性制成的,能将地震波转换为光的变化来传输。FBG传感器探头尺寸小,与光纤耦合损耗小,抗干扰能力强,性能稳定。因此,一根光纤中可串接数以千计的检波器,传输过程中不必考虑衰减的影响,没有电磁干扰影响,地震信号不失真,而且野外施工方便,费用低。更多还原

【Abstract】 A novel geophone for seismic exploration was demonstrated. FBG geophone transmits seismic wave by changing it into light. It has advantages of small size,high resistance to interference, and steady performance. The paper studied how to make seismic geophone by using FBG sensor and introduced the field test of FBG geophone.更多还原