High precision optical fiber fabry-perot sensor for gas pressure detection

被引：1

作者：

Mao Yan ^{[1
]}

Tong Xing-lin ^{[1
]}

机构：

[1] Wuhan Univ Technol, Key Lab Fiber Opt Sensing Technol & Informat Proc, Minist Educ, Wuhan 430070, Peoples R China

来源：

FOURTH ASIA PACIFIC OPTICAL SENSORS CONFERENCE | 2013年 / 8924卷

关键词：

Fabry-Perot; fiber optics sensors; phase demodulation; linear; sensitivity;

D O I：

10.1117/12.2031150

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

An optical fiber Fabry-Perot (F-P) sensor with quartz diaphragm for gas pressure testing was designed and fabricated. It consisted of single-mode fiber, hollow glass tube and quartz diaphragm. It uses the double peak demodulation to obtain the initialized cavity length. The variety of cavity length can be calcultated by the single peak demodulation after changing the gas pressure. The results show that the sensor is small in size, whose sensitivity is 19 pm/kPa in the range of the 10 similar to 260 kPa gas pressure. And it has good linearity and repeatability.

引用

页数：4