手持激光测距仪的电路设计

The Circuit Design of a Hand-held Laser Rangefinder

介绍了一种以单片机和CPLD为核心的手持式激光测距仪的电路设计,重点研究了激光测距仪的接收电路、电源、控制和计数电路的结构。该测距系统使用雪崩二极管作为光电转换检测元件,用高速时钟进行计数测量,简化了设计,提高了数据采集的精度,能方便地实现无合作目标远程测量。

This paper introduces the circuit design of a hand-held laser rangefinder with Single-chip and CPLD as the core,focuses on the receiving circuit,power,control and counts circuit structure of laser rangefinder.This rangefinder system uses avalanche diode（APD） as photoelectric conversion element,adopts high-speed clock components to count,and simplifies the design.It improves the precision of the data acquisition system and can easily achieve long-range measurements without cooperation target.