High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference
This work presents a high-precision fiber optic pressure sensor based on frequency-modulated continuous-wave (FMCW) laser interference. The pressure sensor is primarily composed of a diaphragm-type Fabry–Pérot (F–P) cavity, with the diaphragm fabricated using high-elasticity SUS631 stainless steel....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2021-02-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0035643 |
| _version_ | 1828967381876080640 |
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| author | Lang Bai Gang Zheng Bin Sun Xiongxing Zhang Qiming Sheng Yuan Han |
| author_facet | Lang Bai Gang Zheng Bin Sun Xiongxing Zhang Qiming Sheng Yuan Han |
| author_sort | Lang Bai |
| collection | DOAJ |
| description | This work presents a high-precision fiber optic pressure sensor based on frequency-modulated continuous-wave (FMCW) laser interference. The pressure sensor is primarily composed of a diaphragm-type Fabry–Pérot (F–P) cavity, with the diaphragm fabricated using high-elasticity SUS631 stainless steel. The external air pressure causes the center of the elastic diaphragm to deform, and this deformation results in a change in the F–P cavity length. The FMCW laser-interference method was used to demodulate the change in the length of the cavity and realize high-precision pressure measurements. The experimental results showed that when the pressure measurement is in the range of 0 kPa–600 kPa, an accuracy of 3.8 Pa can be obtained. In addition, the sensor had very good linearity with pressure change (R2 = 0.999 94), repeatability, and stability. |
| first_indexed | 2024-12-14T11:49:48Z |
| format | Article |
| id | doaj.art-0efafa4383f345a88a93efe76292c44a |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-14T11:49:48Z |
| publishDate | 2021-02-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-0efafa4383f345a88a93efe76292c44a2022-12-21T23:02:23ZengAIP Publishing LLCAIP Advances2158-32262021-02-01112025038025038-810.1063/5.0035643High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interferenceLang Bai0Gang Zheng1Bin Sun2Xiongxing Zhang3Qiming Sheng4Yuan Han5School of Optoelectronic Engineering, Xi’an Technological University, Xue-fu Middle Road, No.2, 710021 Xi’an, ChinaSchool of Optoelectronic Engineering, Xi’an Technological University, Xue-fu Middle Road, No.2, 710021 Xi’an, ChinaSchool of Optoelectronic Engineering, Xi’an Technological University, Xue-fu Middle Road, No.2, 710021 Xi’an, ChinaSchool of Optoelectronic Engineering, Xi’an Technological University, Xue-fu Middle Road, No.2, 710021 Xi’an, ChinaSchool of Optoelectronic Engineering, Xi’an Technological University, Xue-fu Middle Road, No.2, 710021 Xi’an, ChinaSchool of Optoelectronic Engineering, Xi’an Technological University, Xue-fu Middle Road, No.2, 710021 Xi’an, ChinaThis work presents a high-precision fiber optic pressure sensor based on frequency-modulated continuous-wave (FMCW) laser interference. The pressure sensor is primarily composed of a diaphragm-type Fabry–Pérot (F–P) cavity, with the diaphragm fabricated using high-elasticity SUS631 stainless steel. The external air pressure causes the center of the elastic diaphragm to deform, and this deformation results in a change in the F–P cavity length. The FMCW laser-interference method was used to demodulate the change in the length of the cavity and realize high-precision pressure measurements. The experimental results showed that when the pressure measurement is in the range of 0 kPa–600 kPa, an accuracy of 3.8 Pa can be obtained. In addition, the sensor had very good linearity with pressure change (R2 = 0.999 94), repeatability, and stability.http://dx.doi.org/10.1063/5.0035643 |
| spellingShingle | Lang Bai Gang Zheng Bin Sun Xiongxing Zhang Qiming Sheng Yuan Han High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference AIP Advances |
| title | High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference |
| title_full | High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference |
| title_fullStr | High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference |
| title_full_unstemmed | High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference |
| title_short | High-precision optical fiber pressure sensor using frequency-modulated continuous-wave laser interference |
| title_sort | high precision optical fiber pressure sensor using frequency modulated continuous wave laser interference |
| url | http://dx.doi.org/10.1063/5.0035643 |
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