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本文介绍用微型计算机对脉冲激光器的稳定性进行实时监测。稳定性测量按数理统计方法进行,取256个数据,求出平均值和标准差,用发光二极管数码管分别显示。统计和显示同时进行,循环不断。这一仪器对脉冲激光器的实验和调试提供了相当方便的手段。文中还讨论了如何充分利用普及型机的软硬件资源,克服测量显示中输入/输出口不足的困难以及高重复率时显示的困难,并分析了数据统计中软件抗干扰功能的原理。最后列出了主程序流程和接收数据的中断服务程序流程。该程序宜工作在每秒200次的脉冲重复率以下。脉冲激光器输出的数字测量为3位或4位BCD码。本工作中完成的统计监测程序具有很大的通用性。只要配接有数码输出的数字测量仪表,就可对一般的生产过程进行实时统计测量。因此它也可以方便地用作生产过程的质量控制监测。
This article describes the use of microcomputers for pulsed laser stability monitoring in real time. Stability measurement by mathematical statistics, take 256 data, find the average and standard deviation, respectively, with light-emitting diode digital display. Statistics and display at the same time, the cycle continues. This instrument provides a very convenient way to experiment and debug pulsed lasers. The paper also discusses how to make full use of the hardware and software resources of the universal machine to overcome the difficulties in displaying the I / O ports in the measurement display and the difficulties displayed when the repetition rate is high, and analyzes the principle of software anti-interference function in data statistics. Finally, lists the main program flow and receive data interrupt service routine. The program should work at 200 times per second pulse repetition rate below. The pulse laser output is digitally measured as a 3-digit or 4-digit BCD code. The statistical monitoring procedure completed in this work has great versatility. As long as the digital output with digital measuring instruments, the general production process can be real-time statistical measurement. So it can also easily be used as a quality control monitor of the production process.