Study of Torsion Accelerometer Based on FBG

In this paper a torsion based on fiber Bragg grating(hereinafter referred to as FBG) is discussed.We put forward a design principle for sensors and make relevant theoretical analysis and finite element simulation.The FBG differential structure is carried out to solve the temperature compensation of sensors,and doubles the accelerometer sensitivity.The experiment results show that acceleration can be accurately measured by the FBG accelerometer.