| PLC在电机转速测量中的应用 |
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| 引用本文： | 韩亮.PLC在电机转速测量中的应用[J].常州工学院学报,2012,25(3):36-38. |
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| 作者姓名： | 韩亮 |
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| 作者单位： | 山西机电职业技术学院电子电气工程系,山西长治,046011 |
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| 摘 要： | 针对电机的转速测量,提出基于PLC的数字测速方法,即使用光电编码器作为脉冲发生器,利用PLC的高速计数器捕捉光电编码器产生的脉冲数,然后采用定时中断控制时间间隔,再根据M法测速原理,由PLC实时计算电机转速。实践表明,该数字测速方法实时性好、精度高,可用于需要精确控制电机转速的场合。
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| 关 键 词： | PLC 高速计数器 编码器 电机转速 |
The Application of PLC in Motor Speed Measurement |
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| HAN Liang.The Application of PLC in Motor Speed Measurement[J].Journal of Changzhou Institute of Technology,2012,25(3):36-38. |
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| Authors: | HAN Liang |
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| Affiliation: | HAN Liang(Department of Electronic Information & Electrical Engineering,Shanxi Institute of Mechanical & Electrical Vocational College,Changzhi 046011) |
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| Abstract: | As for the motor speed measurement,this paper presents a digital speed measurement method based on PLC.This method uses photoelectric encoder as pulse generator,high speed counter of PLC to capture the number of pulses,the timer interrupt to control time interval,and then calculates the real-time motor speed by PLC according to the principle of M method for motor speed measurement.It proves that this digital speed measuring method has good real-time and high accuracy,which can be used to accurately control motor speed. |
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| Keywords: | PLC high speed counter encoder motor speed |
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