Basedg on Fourier optical principle, the imaging property of grating illuminated by expansion source is analysed in this paper. Hence an innovative grating imaging displacementsensor is designed.
A displacementoptical fiber sensor was used for dynamic measuring the relationship between attenuation and displacement.
测量中使用了光纤位移传感器，对衰减与位移的关系进行了动态测量。
3
An all fiber Weak coherent optical fiber sensor (OFS) system for displacement measurement with a fiber Young's decoding interferometer is proposed and demonstrated.