利用光纤共振技术测微振动的设计与实现

传感器在朝着灵敏、精确、适应性强、小巧和智能化的方向发展.在这一过程中,光纤传感器这个传感器家族的新成员倍受青睐.我们探讨一种新型光纤传感器系统,该系统利用光纤共振及光纤抗电磁干扰特性测量大型机械的微振动,系统首先利用光纤共振取出变化信号,然后计算机对图像进行采集、处理,最后完成系统的定标,振幅的测量.该系统把机械振动转换为光学图形来表现,为探测大型机械的微振动提供了实时、准确、经济的方法.

The Design and Implementation of Microseism Measurement Basedon Optical Fiber Resonance

Sensors have been developing to more sensitive, precise, adaptive, smart, and intelligent ones. In this process, optical fiber, as a new member of them, has attracted more attention. Aimed at measuring microseismic amplitude under particular conditions, a brand new optical fiber sensor is proposed. Employing techniques such as optical fiber resonance and anti-electromagnetism, the sensor is capable of rating microseismic activities. By means of optical fiber resonance, variantional signal is first extracted from optical fibers. Image sampling, processing, system scaling, as well as amplitude measurement are fulfilled by computers. This system transforms mechanical vibration into optical graphics, providing real-time, precise and economical method for the microseismic measurement.