Application of PSD in Space Point Position Measurement

Abstract

Introduced one kind of new photoelectric PSD (position sensitive detector) in the two-dimensional space and three-dimensional space point light source position measure application, and has carried on the experimental measure to the two-dimensional space point light source, according to point light source establishing coordinate system, does displacement in the horizontal plane x, y direction, displacement changing causes output of the PSD change according to certain relational, sends 4 groups outputs about two set of PSD module into the signal conditioning electric circuit, after the output signal is gathered by data acquisition card, carries on the data processing and the point light source two-dimensional position count through software. Finally has analyzed question that exists in the experiment, improved measure as well as the question of PSD should pay attention in the application.