Chinese Journal of Quantum Electronics, Volume. 42, Issue 2, 286(2025)
A polymer⁃encapsulated fiber Bragg grating ultrasonic sensor
Fig. 5. Reflection spectra of fiber grating under three polymer encapsulations
Fig. 6. Designed diagram of the fiber grating ultrasonic sensing experimental system
Fig. 8. Voltage waveform diagram of gratings at different frequencies. (a) 60 kHz; (b) 48 kHz; (c) 30 kHz
Fig. 9. Effect of sound source distance on signal voltage under different materials. (a) Bare FBG; (b) PVC; (c) ABR; (d) PU
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Xinghua TU, Haiyang ZHAO. A polymer⁃encapsulated fiber Bragg grating ultrasonic sensor[J]. Chinese Journal of Quantum Electronics, 2025, 42(2): 286
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Received: Jun. 21, 2023
Accepted: --
Published Online: Apr. 1, 2025
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