基于霍尔传感器的转速系统设计

为了在灰尘大、油污重的工业环境中快速准确测量旋转设备转速,以单片机AT89C52为数据处理核心,采用UGN3144霍尔传感器为数据采集模块,利用霍尔效应及单片机技术,采用M/T测速法设计了一种转速测量系统.UGN3144首先把转速转换为电压信号,经整形电路送入AT89C52单片机,单片机采用定时器定时中断的方法实现计数,对测量数据进行计算得到转速数据,送液晶显示器显示测量结果.测试结果表明：系统的测量精度较高,能够满足实际的测试需要,有一定的实用价值.

The design of speed system based on hall sensor

In order to quickly and accurately measure speed of rotating equipment in large dust,oil and heavy industrial environments,AT89C52 single-chip microcomputer as the data processing core, adopting UGN3144 Holzer sensor acquisition module for the data, using the Holzer effect and MCU technology,a speed measurement system design using M/T method. UGN3144 first put the speed signal is converted into voltage signal into the microcontroller AT89C52 ,the shaping circuit,single-chip timer interrupt counting method, the measurement data are calculated by the speed of data, send LCD display results. Test results show that：the higher measurement preeisionof the system, can satisfy the test requirements,and has certain practical value.