Research on Spacecraft Strain Measurement System and Impact Sensing Technology Based on Fiber Grating Sensors and All Fiber Optic Sensing

In the process of flight for in-orbit spacecraft, debris and particles in space will collide with spacecraft at a high speed. These collision produce strain, pit or perforation on surface cabin, forming damage accumulation. Therefore, it is necessary to monitor strain impact position cabin real time, which provide basis ensuring reliability safety spacecraft. this paper, achievement vibration information during designed two ways: touched style untouched style. The design needs meet requirements large capacity/ultra-high speed monitoring. acquisition frequency signal process.