摘要
从电路模块化和程控的思想出发,对SZY-1型双折射测试仪的信号发生器部分进行了改进。用单片机通过软件编程产生方波信号,并用键盘控制其相位大小,取代了原来的硬件电路实现相位粗调和细调的方法。阐述了软件设计流程,并对改进后的电路进行了仿真,结果性能良好。
Starting from the idea of circuit modularization and program control the improvement of the signal generation part of the Type SZY-1 birefringence measurement instrument is made. It uses single chip computer to generate square wave signals through the software, controls the size of phase through keyboard, and replaces the original way using hardware circuit to implement phase＇s coarse adjustment and fine adjustment. The software design process is described, and a simulation for the improved circuit is made. The result is good.
出处
《电子技术（上海）》
2012年第3期60-62,共3页
Electronic Technology
关键词
双折射测试仪
单片机
移相
选频
birefringence measurement instrument
MCU
phase shift
frequency selection
