Method or improving measurement precision for optical fiber sensor

CHANG Dan-hua

doi:null

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Method or improving measurement precision for optical fiber sensor

更新时间：2020-08-12

- Method or improving measurement precision for optical fiber sensor
- Optics and Precision Engineering Vol. 8, Issue 3, Pages: 269-272(2000)
- 作者机构：
  
  燕山大学光电子工程系, 河北秦皇岛 066004
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN253
- Received：21 December 1999，
  
  Revised：21 February 2000，
  
  Published Online：15 June 2000，
  
  Published：15 June 2000
- 稿件说明：
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常丹华. 提高光纤传感测量精度的方法研究[J]. 光学精密工程, 2000,(3): 269-272

CHANG Dan-hua. Method or improving measurement precision for optical fiber sensor[J]. Editorial Office of Optics and Precision Engineering, 2000,(3): 269-272
常丹华. 提高光纤传感测量精度的方法研究[J]. 光学精密工程, 2000,(3): 269-272 DOI：

CHANG Dan-hua. Method or improving measurement precision for optical fiber sensor[J]. Editorial Office of Optics and Precision Engineering, 2000,(3): 269-272 DOI：

摘要

采用激光干涉原理实现了微位移光纤传感测量.通过对光学系统和光电检测系统的研究

总结出提高光纤传感测量精度的方法

文中对微弱光信号的相位调制

数字解理过程

给出了低噪声设计的理论依据

电路参数的选取原则和预放级设计的一般方法.系统微位移测试精度约0.05nm.

Abstract

Improvement on measuring precision of a optical fiber sensor

based on principle of laser interference

was proposed through the investigation of both the optical system and the opticalelectron measuring system. The theoretical foundation

the selecting principle of circuit parameters and the designing method of preamplifier were given and analyzed in detail for the phase modulation of low noise of weak signal and the demodulation procedure of telephone digits. A precision of 0.05nm for micro-displacement measurement has been obtained by this new method.

关键词

Keywords

references

Beard P C, Mills T N. Extrinsic optical-fiber ultrasound sensor using a thin polymer film as a low-finesse FabryPerot interferometer[J].Appl. Opt. 1996. 35. 4. 663－675.

Wright O B. Stabilized dual-wavelength fiber-optic interferometer for vibration measurement [J]. Opt. Lett. 1991. 16. 1.56－58.

方志豪.晶体管低噪声电路[M].北京：科学出版社,1984,7,223－228.

刘瑞复,史锦珊.光纤传感器及其应用[M].北京：机械工业出版社,1987,3,116－127.

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