一种基于强度补偿的自由式光纤束差压传感器

中国机械工程 ›› 2015, Vol. 26 ›› Issue (2): 188-192.

一种基于强度补偿的自由式光纤束差压传感器

胡浩1;钟丽琼1,2;张大斌1

1.贵州大学，贵阳，550025
2.贵阳学院，贵阳，550003

出版日期:2015-01-25 发布日期:2015-01-23
基金资助:
贵州省科学技术基金资助项目（20112190）；贵州省科技厅、贵阳市科技局、贵阳学院联合基金资助项目（LKG201339）

A Kind of Freestyle Optical Fiber Bundle Differential Pressure Sensor Based on Intensity Compensation

Hu Hao1;Zhong Liqiong1,2;Zhang Dabin1

1.Guizhou University,Guiyang,550025
2.Guiyang College,Guiyang,550003

Online:2015-01-25 Published:2015-01-23
Supported by:
Guizhou Provincial Science and Technology Foundation of China ( No. 20112190)

摘要/Abstract

摘要：

对一种基于强度补偿的自由式光纤束差压传感器进行设计与研究。传感器探头部分采用同结构、双探头的设计，传感器探头采用机械式封装；对传感器的光纤部分进行了强度补偿设计与分析，并利用调制函数M，理论分析了补偿后的输出值R；在对两传感探头施加相等的压力p=20kPa情况下，改变光源的输出功率，测出光电探测器的输出电压值，并在两探头存在不同的压差Δp时，测出其输出值R。实验结果表明：通过强度补偿后，输出值R≈1，同时在不同的压差作用下，输出值R与压差Δp在一段区域内有较好的线性关系。研究结果表明：传感器的强度补偿效果明显，可实现压力差值的检测。

关键词: 强度补偿, 自由式, 光纤束, 差压传感器

Abstract:

A kind of freestyle optical fiber bundle differential pressure sensor based on intensity compensation was designed and researched. Firstly, the sensor probe part was designed with double probe and the same structure, and was packaged by mechanical style. Then, the sensor fiber part was designed and analyzed on the intensity compensation, after the compensation, the output value of R was analyzed theoretically with the modulation function M. Finally, R was tested out under different conditions, changing the output power of the light source when there is same pressure p=20kPa in two probes, or inputting different pressures in two probes.Experimental results show that: through strength after compensation, the output value R≈1, at the same time under the influence of different pressure differentials, the output value R and pressure difference Δp within a certain area is of a good linear relationship. Through the above research it is proved that the effects of intensity compensation are obvious and can detect pressure difference.

Key words: intensity compensation, freestyle, optical fiber bundle, differential pressure sensor

中图分类号:

TH74
TH823

胡浩, 钟丽琼, 张大斌. 一种基于强度补偿的自由式光纤束差压传感器[J]. 中国机械工程, 2015, 26(2): 188-192.

Hu Hao, Zhong Liqiong, Zhang Dabin. A Kind of Freestyle Optical Fiber Bundle Differential Pressure Sensor Based on Intensity Compensation[J]. China Mechanical Engineering, 2015, 26(2): 188-192.

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