The PSD detector uses the transverse effect to measure the photocurrent signal between the center of the spot and the edge of the detector to obtain one-dimensional or two-dimensional coordinate information of the spot. Compared with QPD, it has higher dynamic range, range and linearity, which can effectively shield the influence of irregular spot shape on measurement accuracy.
Application: spot calibration, displacement measurement, angle measurement, motion analysis, triangulation ranging, etc.
The PSD detector uses the transverse effect to measure the photocurrent signal between the center of the spot and the edge of the detector to obtain one-dimensional or two-dimensional coordinate information of the spot. Compared with QPD, it has higher dynamic range, range and linearity, which can effectively shield the influence of irregular spot shape on measurement accuracy.
Application: spot calibration, displacement measurement, angle measurement, motion analysis, triangulation ranging, etc.
