【摘要】 本文阐述了反馈法激光测距系统的基本原理和装置设计，给出了有关实验结果。该系统配以适当的控制电路，以ＫＤ＊Ｐ晶体作为反馈通道的电光开关，在测距时形成稳定的光强信号的反馈振荡，由振荡频率测知待测距离。更多还原

【Abstract】 In this paper, we explound the basic principle and the design of laser range finder with the method of feedback, and present some experimental results. The system uses KD* P as photoelectric switch and is matched with proper controling circuit. A stable oscillation of light intensity is established while measuring. The frequency of the oscillation depends on the range to be measured.更多还原