【摘要】 介绍了利用光电二极管、A/D转换和单片机技术建立一种新型的激光功率实时测量系统。通过光电耦合获得电流信号,研究了光谱响应,研制了A/D转换模块与电路,开发了单片机接口与程序,将数字量传送给计算机,实时显示激光功率,并实现反馈输出,功率测量的线性度好,测量灵敏度高,响应速度及分辨率达到了实用要求,使用可靠。更多还原

【Abstract】 This article describes a new real - time measurement system of laser power which uses the photodiode,A/D converter and SCM technology.Through the current signals acquired from the opto - coupler,we have researched the spectral response,contrived the A/D converter module and the circuit,and developed single- chip microcomputer interfaces and procedures.By transmit the digital signal to the computer,it real - time display the laser power.The measurement system has achieved feedback output and possessed good linearity measurement value.Its sensitivity,response speed and resolution achieve the requirement to practical.更多还原