Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing
The influence of the wavelength difference between the laser source and the phase-shifted fiber Bragg grating (PS-FBG) on the intensity of the power demodulation system based on an adjustable laser source was studied experimentally, and the optimum of the output laser wavelength was determined. Then...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2023-06-01
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| Series: | Measurement Science Review |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/msr-2023-0014 |
| _version_ | 1797778331700035584 |
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| author | Meng Lijun Tan Xin Yu Quanquan |
| author_facet | Meng Lijun Tan Xin Yu Quanquan |
| author_sort | Meng Lijun |
| collection | DOAJ |
| description | The influence of the wavelength difference between the laser source and the phase-shifted fiber Bragg grating (PS-FBG) on the intensity of the power demodulation system based on an adjustable laser source was studied experimentally, and the optimum of the output laser wavelength was determined. Then, the research on time-frequency imaging damage identification based on smooth pseudo-Wigner-Ville distribution was carried out. The Time of Flight of the acoustic wave signal was calculated and time compensation was made according to the Wigner-Ville distribution and the Lamb wave dispersion curve. The ultrasonic waves before and after damage were measured with spatially arranged PS-FBGs. The difference signals were processed in a window, and then the time-frequency energy of the normalized difference signal was imaged to assess the damage detection and location. Although the mode and group velocity of ultrasound measured by each fiber grating were different, the accurate location and identification of artificial damage in an aluminum alloy plate was realized by using only three PS-FBGs and a smooth Wigner time-frequency imaging method. |
| first_indexed | 2024-03-12T23:16:41Z |
| format | Article |
| id | doaj.art-aeb2b363c30148679277520c06e11c43 |
| institution | Directory Open Access Journal |
| issn | 1335-8871 |
| language | English |
| last_indexed | 2024-03-12T23:16:41Z |
| publishDate | 2023-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Measurement Science Review |
| spelling | doaj.art-aeb2b363c30148679277520c06e11c432023-07-17T05:26:38ZengSciendoMeasurement Science Review1335-88712023-06-0123310611510.2478/msr-2023-0014Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating SensingMeng Lijun0Tan Xin1Yu Quanquan21State Key Laboratory of Precision Blasting, Jianghan University, Delta Lake Road, No.8, 430056, Wuhan, China; Intelligent manufacturing College, Jianghan University, Delta Lake Road, No.8, 430056, Wuhan, China2Intelligent manufacturing College, Jianghan University, Delta Lake Road, No.8, 430056, Wuhan, China3Intelligent manufacturing College, Jianghan University, Delta Lake Road, No.8, 430056, Wuhan, ChinaThe influence of the wavelength difference between the laser source and the phase-shifted fiber Bragg grating (PS-FBG) on the intensity of the power demodulation system based on an adjustable laser source was studied experimentally, and the optimum of the output laser wavelength was determined. Then, the research on time-frequency imaging damage identification based on smooth pseudo-Wigner-Ville distribution was carried out. The Time of Flight of the acoustic wave signal was calculated and time compensation was made according to the Wigner-Ville distribution and the Lamb wave dispersion curve. The ultrasonic waves before and after damage were measured with spatially arranged PS-FBGs. The difference signals were processed in a window, and then the time-frequency energy of the normalized difference signal was imaged to assess the damage detection and location. Although the mode and group velocity of ultrasound measured by each fiber grating were different, the accurate location and identification of artificial damage in an aluminum alloy plate was realized by using only three PS-FBGs and a smooth Wigner time-frequency imaging method.https://doi.org/10.2478/msr-2023-0014phase shifted fiber bragg grating (ps-fbg)time-frequency analysisultrasonic detectionsmooth pseudo-wigner-ville distributiondispersion curvedamage imaging |
| spellingShingle | Meng Lijun Tan Xin Yu Quanquan Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing Measurement Science Review phase shifted fiber bragg grating (ps-fbg) time-frequency analysis ultrasonic detection smooth pseudo-wigner-ville distribution dispersion curve damage imaging |
| title | Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing |
| title_full | Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing |
| title_fullStr | Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing |
| title_full_unstemmed | Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing |
| title_short | Study on Time-frequency Imaging of Ultrasonic Detection with Phase Shifted Fiber Bragg Grating Sensing |
| title_sort | study on time frequency imaging of ultrasonic detection with phase shifted fiber bragg grating sensing |
| topic | phase shifted fiber bragg grating (ps-fbg) time-frequency analysis ultrasonic detection smooth pseudo-wigner-ville distribution dispersion curve damage imaging |
| url | https://doi.org/10.2478/msr-2023-0014 |
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