On july 25th, in 2014，Our High precision laser displacement sensor has been passed the acceptance conference at RM 314 of instrument science and engineering department in SJTU. The specialists  listen to project leader Professor Zhao explaining the basic theory of this sensor. And they read the technique material and basic function of this sensor. After about 2 hours` discussing on this project, the specialists make an agreement on passing this project and admining that this sensor makes a breakthough in the displacement measuring area.