Fig. 1. Structure of the FBG cable force sensor (a) Schematic diagram of pasting FBG; (b) schematic diagram of arrangement of Hui word beams

Fig. 2. Schematic diagram of shell assembly

Fig. 3. Simplified model of elastomer

Fig. 4. Stress analysis cloud map based on finite element method

Fig. 5. Installation diagram of FBG and Hui word beam. (a) Hui word beam ①; (b) Hui word beam ②

Fig. 6. Physical drawing of pressure testing machine and dynamic load acquisition system

Fig. 7. Time history diagram of the pressure cycle test

Fig. 8. Time history diagram of the sensor output signal

Fig. 9. Variation curve of output signal wavelength drift with load

Fig. 10. Linear fitting results of the mean value of experimental data

Fig. 11. Creep performance test results of the sensor

Fig. 12. Test results of sensor temperature-compensation performance