Fiber-optic hybrid structure sensor for simultaneous measurement of transverse load and temperature

A hybrid structure sensor based on Michelson and Fabry-Perot fiber-optic interferometer for simultaneous measurement of transverse load and temperature is proposed and experimentally investigated. This structure has the advantages of high sensitivity, low cost and easy fabrication. It consists of la...

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Bibliographic Details
Published inOptik (Stuttgart) Vol. 208; p. 164078
Main Authors Zhu, Fuxing, Zhang, Yundong, Qu, Yanchen, Su, Huaiyin, Zhao, Li, Guo, Ying
Format Journal Article
LanguageEnglish
Published Elsevier GmbH 01.04.2020
Subjects
Fabry-Perot interferometer
Fiber-optic sensor
Michelson interferometer
Simultaneous measurement
Temperature
Transverse load
Temperature
Michelson interferometer
Fiber-optic sensor
Fabry-Perot interferometer
Transverse load
Simultaneous measurement
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Summary:A hybrid structure sensor based on Michelson and Fabry-Perot fiber-optic interferometer for simultaneous measurement of transverse load and temperature is proposed and experimentally investigated. This structure has the advantages of high sensitivity, low cost and easy fabrication. It consists of lateral offset splicing of single-mode fibers (SMFs) and air-cavity of silica microsphere. The temperature sensitivities of the sensor are 41.5 pm/ºC and 12.5 pm/ºC in 35 ºC-60 ºC at two tracking points, respectively. The transverse load sensitivities of the sensor are 0.85 nm/N and 1.09 nm/N in 0 N–3.40 N at two tracking points, respectively. The sensor can be used to concurrently measure transverse load and temperature owing to the different sensitivities of them to the two wavelengths.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2019.164078