摘要
介绍了一种新型的微小倾角光学测量系统．该系统结合半导体位置探测器件PSD(Position Sensitive Detection)和LM3824以及Intel 80C51单片机,首先把PSD测量的倾角转换为电流,再用精密电流检测器件LM3824将其变换为PWM信号,最后通过Intel 80C51对PWM信号占空比的采样计算电流,从而完成对倾角的精密测量．
This paper introduced a new measure system of optics to measure the small obliquity. That system combines the semi -conductor of the Position Sensitive Detection（PSD）, LM3824 and Intel 80C51 SCM, and It convert＇s the obliquity of the PSD as electrical current first, then, use the precise electric current instrument of LM3824, translated it into PWM, finally, use the Intel 80C51that complete the ratio of the sample that is occupied. Thus, this work has been completed. The experiment indicated that system can carry on an accurate measurement to the small obliquity.
出处
《仪器仪表用户》
2007年第3期4-5,共2页
Instrumentation
