Yandong Pang, Ciming Zhou, Junbin Huang, Hongcan Gu, Xi Chen, Chenguang Zhao, Qing Zhou, Dian Fan. Calibration for Acoustic Pressure Sensitivity of Optical Fiber Hydrophone Based on Fizeau Interference[J]. Acta Optica Sinica, 2020, 40(15): 1506003
- Acta Optica Sinica
- Vol. 40, Issue 15, 1506003 (2020)
Fig. 1. Structure of Fizeau interferometric optical fiber hydrophone system
Fig. 2. Acoustic pressure field calibration model of hydrophone with different postures. (a) Vertical posture; (b) horizontal posture
Fig. 3. Flow chart of optical fiber hydrophone phase change demodulation algorithm
Fig. 4. Acoustic pressure sensitivity response under different radiuses
Fig. 5. Acoustic pressure sensitivity errors under different postures of hydrophone. (a) Horizontal posture; (b) vertical posture
Fig. 6. Experimental schematic of Fizeau interferometric optical fiber hydrophone
Fig. 7. Fixed design of optical fiber hydrophone
Fig. 8. Output time-domain waveforms under different postures. (a) Vertical posture; (b) horizontal posture
Fig. 9. Acoustic pressure sensitivity of hydrophone under different postures
Fig. 10. Sensitivity difference at different postures
Fig. 11. Sensitivity calibration model with depth reading difference
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Table 1. [in Chinese]
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