Xinyue Jiang, Ping Lu, Yuan Sun, Hao Liao, Deming Liu, Jiangshan Zhang, Hui Liao. Simultaneous measurement of axial strain and temperature based on twisted fiber structure[J]. Chinese Optics Letters, 2018, 16(4): 040602
- Chinese Optics Letters
- Vol. 16, Issue 4, 040602 (2018)
Fig. 1. (a) Fabrication process of the sensor head. (b) Microscopic image of the twisted area. (c) Basic structure of the sensor head.
Fig. 2. Schematic of the experimental setup for strain measurement.
Fig. 3. (a) Initial transmission spectrum. (b) Spatial frequency after fast Fourier transform (FFT) transformation.
Fig. 4. (a) Transmission spectrum when strain increases from 0 to 1000 με. (b) Detailed information of dip 1. (c) Detailed information of dip 2. (d) Relationships between wavelength shifts and strain.
Fig. 5. (a) Wavelength shift of dip 1 as temperature increases. (b) Wavelength shift of dip 2 as temperature increases. (c) Relationships between wavelength shifts and temperature.
Fig. 6. Responses to the strain and temperature of dips 3 and 4.
Fig. 7. Measured versus applied strain and temperature.
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