摘要
光纤Bragg光栅地震检波器传感头由光纤Bragg光栅制成 ,其采集的传感信息包含在波长上 ,直接对波长进行调制解调 ,与常规检波器相比 ,具有分辨率高、精度高、抗干扰能力强、频带宽等优点。文章描述了光纤布拉格光栅的结构及其传感和检测外界被测参数的原理 ,介绍了光纤布拉格光栅地震检波器传感头的设计原理、结构组成。
The sensing probe of the fiber Bragg grating geophone is made up of fiber Bragg gating. The information which it collects is embodied in wavelength. The modulation-demodulation is accomplished by fiber Bragg gating geophone directly. Compared with traditional geophones,it has higher resolution,wider bandwidth,higher accuracy and better immunity to electromagnetic interference. The system architecture,operating principle and structure design of the sensing probe of the fiber Bragg gating geophone are explained emphatically.
出处
《石油仪器》
2004年第6期23-25,74,共3页
Petroleum Instruments
