ZHANG Ya-juan, QIU Zu-rong, LI Xing-hua, et al. Laser tracking coordinate measurement system based on PSD[J]. 2011, 30(7): 116-119. DOI: 10.13873/j.1000-97872011.07.011.
A control system which has rapid response and large angel measuring range is setup
The structure of standalone laser tracking system is analyzed.A fast position sensitive detector(PSD)signal processing circuit based on DSP is provided.The matrix for the conversion between the coordinate of PSD light point and cat eye displacement is derived and the method for computing motor velocity is given.The impact of optical path on system controlling and measurement precision is studied.At last
experiment proves that the control method is effective and can provide a rapid and exact tracking to the target lens.