基于光纤Sagnac干涉仪的旋转角度测量系统  

Rotation angle measurement system based on fiber-optic Sagnac-interferometer

作　　者：周星炜[1] 王占斌[1] 袁一方[1] 穆平安[1] 陈林[2] 

机构地区：[1]上海理工大学光电学院,上海200093 [2]上海第二工业大学,上海201209

出　　处：《传感器技术》2005年第9期53-55,共3页Journal of Transducer Technology

摘　　要：介绍了一种基于光纤Sagnac干涉仪的敏感角速度光纤传感器的工作原理.根据其输出的旋转信号的特点,采用P87LPC767单片机,设计出一套应用于角度测量的硬件及软件,实现了对中低速旋转的角度测量,可测角度范围为-360°～360°,且误差低于1%. 详细介绍角度测量的实现,并对测量结果和误差进行分析.The principle of a kind of fiber-optic sensor based on the Sagnac-interferometer is introduced. According to the character of the output signal, a set of hardware and software applied to the measurement of angle is designed based on the single chip processor P87LPC767. The system can measure the rotation angle from -360° to 360° in a low or middle speed and limit the deviation within 1%. The realization of angle measurement is mainly introduced, and the result of the experiment is given. Finally, the result of measurement and the deviation are analysed.

关 键 词：SAGNAC干涉仪 光纤传感器 P87LPC767单片机 角度测量 

分 类 号：TP223[自动化与计算机技术—检测技术与自动化装置]