光纤液位远程测量系统  

Optical Remote Measurement System for Liquid Level

作　　者：金宁[1] 张增耀[2] 汪伟[3] 黄咏梅[2] 

机构地区：[1]中国计量学院信息工程分院,杭州310034 [2]中国计量学院计量技术工程分院,杭州310034 [3]中国计量学院机电工程分院,杭州310034

出　　处：《仪器仪表学报》2001年第z2期143-144,共2页Chinese Journal of Scientific Instrument

摘　　要：本文介绍一种本质安全型液位远程测量系统 ,采用光纤作为信号传输媒体使测量现场远离电信号 ,适用于储油罐等易燃易爆场合液位的测量。该系统采用相位法激光测距原理 ,具有较高测量精度。文中详细描述了系统设计原理和实现方案 ,分析了误差产生的原因 。This paper introduces a remote measurement system for liquid level,which has the advantage of inherent safety to be used in danger place,such as oil storage tanks.By the use of optical fibres to transfer the optically encoded signal,the measurement spot keeps apart from the electronic processing system.The measurement is made by the method of phase laser rangerfinding which can obtain high precision.In this paper,the design principle and performance of the system are put forward,error analyses are discussed in details,and some practical methods are introduced to improve the precision and stability of measurement.

关 键 词：液位 远程测量 激光测距 相位 

分 类 号：TN2[电子电信—物理电子学]