Fig. 1. Pressure sensing head of frequency modulated continuous wave fiber optic pressure sensor

Fig. 2. Relationship between shape variable of diaphragm center and temperature

Fig. 3. Influence of different cavity residual air pressure on central shape variable of diaphragm

Fig. 4. Influence of different temperature on central shape variable of diaphragm

Fig. 5. Characteristic curve of 316L stainless steel cavity structure with temperature change

Fig. 6. Characteristic curve of epoxy resin adhesive with temperature change

Fig. 7. Structure of sensing head of frequency modulated continuous wave fiber optic pressure sensor

Fig. 8. Temperature measurement system of frequency modulated continuous wave fiber optic pressure sensor

Fig. 9. Shape variation of F-P cavity structure with temperature change

Fig. 10. Relationship between length variable of F-P cavity and air pressure of inflatable cavity at different temperatures

Fig. 11. Relationship between temperature and length variable of F-P cavity

Fig. 12. Relationship between pressure value obtained after temperature compensation and experimental pressure value

Fig. 13. Difference between pressure value obtained after temperature compensation and experimental pressure value

Fig. 14. Normal distribution of cavity length random error at 0 kPa pressure after temperature compensation