中国激光, 2019, 46 (8): 0804003, 网络出版: 2019-08-13
一种基于步进电机的光开关 下载: 1014次
Optical Switch Based on Stepper Motor
摘要
介绍了一种基于步进电机的光开关,主要用于间歇型原子钟。采用直径为6 mm的两相步进电机,结合不同形状的挡光叶片,实现了对光的开启与关断。采用步进电机驱动芯片TMC260和微控制器STC12C5A60S2结合的方式控制步进电机的转动。该控制系统整体结构紧凑,且一个微控制器可以控制多个步进电机。实验结果表明,利用该光开关可实现高于100 dB的消光比,并且可长时间稳定运行。
Abstract
We describe an optical switch based on the stepper motor, which can be used to the pulsed atomic clocks. The switch consists of a two-phase stepper motor with 6 mm diameter and blades with different shapes to switch on and off the light. A universal stepper motor driver chip (TMC260) and a microcontroller (STC12C5A60S2) are used to control the rotation of the motors. The control system is compact. One microcontroller can be used to control multi-motors. The experimental results show that the extinction ratio higher than 100 dB is reached and the optical switches can work normally for a long term.
于明圆, 徐斌, 欧阳鑫川, 王鑫, 万金银, 肖玲, 成华东, 刘亮. 一种基于步进电机的光开关[J]. 中国激光, 2019, 46(8): 0804003. Mingyuan Yu, Bin Xu, Xinchuan Ouyang, Xin Wang, Jinyin Wan, Ling Xiao, Huadong Cheng, Liang Liu. Optical Switch Based on Stepper Motor[J]. Chinese Journal of Lasers, 2019, 46(8): 0804003.