Yan Jie, Li Wei, Jiang Mingshun, Zhang Lei, Zhang Faye, Sui Qingmei. Shape Perception and Three-Dimensional Reconstruction Technology of Plate Structure Based on Fiber Bragg Grating Sensor[J]. Chinese Journal of Lasers, 2020, 47(11): 1106006

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- Chinese Journal of Lasers
- Vol. 47, Issue 11, 1106006 (2020)

Fig. 1. Schematic diagram of spacecraft structure

Fig. 2. Modal analysis diagrams obtained by finite element analysis. (a) First-order strain mode; (b) second-order strain mode; (c) third-order strain mode

Fig. 3. Strain and deformation cloud maps under two central displacements. (a)(b) 0.3 mm; (c)(d) 1.8 mm

Fig. 4. Diagram of fiber Bragg grating sensor network

Fig. 5. Diagram of micro-element segment before and after deformation

Fig. 6. Diagram of orthogonal network of plate structure

Fig. 7. Coordinate conversion diagram

Fig. 8. Diagram of relationship between deformation curve and flat plane

Fig. 9. Experimental system of deformation detection based on fiber Bragg grating sensing technology

Fig. 10. Reconstruction maps of three-dimensional deformed surfaces with different center displacements. (a) 0.5 mm; (b) 1.0 mm; (c) 1.5 mm; (d) 2.0 mm
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Table 1. Error analysis table for center displacement of 0.5 mm
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Table 2. Error analysis table for center displacement of 1.0 mm
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Table 3. Error analysis table for center displacement of 1.5 mm
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Table 4. Error analysis table for center displacement of 2.0 mm
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Table 5. Table of mean error analysis under different center displacements

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