摘要
本文论述了MSP430F149低功耗单片机TIMER_B捕获方式的工作原理。并利用MSP430F149单片机捕获方式和红外对管传感器设计了速度测量系统,同时给出了精度计算方法和误差分析。该系统具有精度高、功耗低、体积小、抗干扰等特点,可应用于子弹出膛速度测量,飞轮转速测量和其它需要精确测速的工业控制领域。
The working principle of TIMER_B capture mode in MSP430F149 MCU was discussed. And a kind of speed measurement system was designed based on the TIMER_B capture mode and infrared twinborn LED. We calculated the precision and analysed the bounds of error. This system was provided with high precision and low power which could be applied to measure the flying bullet speed, the fly wheel speed and other region with high precise speed measurement.
出处
《微计算机信息》
2012年第3期14-15,共2页
Control & Automation
基金
公安部应用创新计划(2010yycxgadx118)
中国人民公安大学重点预研与转化项目(2010LG10)资助的课题
