Temperature-insensitive optical Fabry–Perot flow measurement system with partial bend angle

Huijia Yang; Junfeng Jiang; Shuang Wang; Yuheng Pan; Xuezhi Zhang; Tiegen Liu

doi:doi:10.3788/COL201715.040601

Chinese Optics Letters, 2017, 15 (4): 040601, Published Online: Jul. 25, 2018

Temperature-insensitive optical Fabry–Perot flow measurement system with partial bend angle Download： 878次

Huijia Yang ¹Junfeng Jiang ^1,*Shuang Wang ¹Yuheng Pan ^1,2Xuezhi Zhang ¹Tiegen Liu ¹

Author Affiliations

¹ School of Precision Instrument and Opto-Electronics Engineering, Key Laboratory of Micro Opto-electro Mechanical System Technology, Institute of Optical Fiber Sensing of Tianjin University, Tianjin Optical Fiber Sensing Engineering Center, Key Laboratory of Opto-Electronics Information Technology (Tianjin University), Ministry of Education, Tianjin 300072, China

² School of Computer and Information Engineering, Tianjin Chengjian University, Tianjin 300384, China

Figures & Tables

Fig. 1. Theoretical analysis diagram of the elbow structure.

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Fig. 2. Partial bend structure used in the F-PFMS.

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Fig. 3. Schematic layout of the optical fiber F-P sensor and space low-coherence demodulation unit.

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Fig. 4. Schematic diagram of the F-PFMS.

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Fig. 5. Thermal stability of the F-P sensor with (a) relationship between the AbPhase and pressure and (b) the pressure testing error at different temperatures.

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Fig. 6. (a) Relationship between Q and the differential phase, (b) flow test errors of the F-PFMS at 10°C–40°C, and (c) the measurement accuracy of the F-PFMS at Q=5.2 m3/h.

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Huijia Yang, Junfeng Jiang, Shuang Wang, Yuheng Pan, Xuezhi Zhang, Tiegen Liu. Temperature-insensitive optical Fabry–Perot flow measurement system with partial bend angle[J]. Chinese Optics Letters, 2017, 15(4): 040601.

Temperature-insensitive optical Fabry–Perot flow measurement system with partial bend angle Download： 878次

Fig. 1. Theoretical analysis diagram of the elbow structure.

Fig. 2. Partial bend structure used in the F-PFMS.

Fig. 3. Schematic layout of the optical fiber F-P sensor and space low-coherence demodulation unit.

Fig. 4. Schematic diagram of the F-PFMS.

Fig. 5. Thermal stability of the F-P sensor with (a) relationship between the AbPhase and pressure and (b) the pressure testing error at different temperatures.

Fig. 6. (a) Relationship between Q and the differential phase, (b) flow test errors of the F-PFMS at 10°C–40°C, and (c) the measurement accuracy of the F-PFMS at Q=5.2 m3/h.

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Temperature-insensitive optical Fabry–Perot flow measurement system with partial bend angle Download： 878次

Fig. 1. Theoretical analysis diagram of the elbow structure.

Fig. 2. Partial bend structure used in the F-PFMS.

Fig. 3. Schematic layout of the optical fiber F-P sensor and space low-coherence demodulation unit.

Fig. 4. Schematic diagram of the F-PFMS.

Fig. 5. Thermal stability of the F-P sensor with (a) relationship between the AbPhase and pressure and (b) the pressure testing error at different temperatures.

Fig. 6. (a) Relationship between Q and the differential phase, (b) flow test errors of the F-PFMS at 10°C–40°C, and (c) the measurement accuracy of the F-PFMS at Q=5.2 m3/h.

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