【摘要】 叙述了采用650 nm激光器作为发射光源,用四象限光电探测器作为接收器,将接收到的4路信号通过放大、展宽电路,然后经过A/D转换器和单片机,准确地测量目标光源的方位。通过两维手动平移台控制激光器,并通过两维电控平移台控制四象限探测器,可以准确地得到光斑中心的坐标,然后通过上位机软件在计算机上直观地显示光斑的移动轨迹。该系统具有精度高、价格低、便于自动控制和操作方便的特点。更多还原

【Abstract】 The four quadrant photoelectric detector has already been widely used in the photoelectric signal defection,photoelectric direction finding,photoelectric collimation,photoelectricity cenfering,photoelectricity autotracking,photoelectric guidance,etc.technical fields.This paper describes adopting 650 nm laser as the light source,using four quadrants photoelectric detector as the receiver.The received four channel signals are amplified,then with A/D converter and single-chip computer the light source accurate position is measured.It uses twodimensional manual platform to control laser instrument,two-dimension automatic platform to control four quadrant detector,then the coordinates of the facula centre is obtained accurately,after that the facula orbit on the computer is displayed with software.This system has high precision,low price,easness of control automaticallying and is easy to operate.更多还原