新型速度传感器试验台研究  

Research on A New Speed Sensor Test Bench

作　　者：杨丰萍 刘锋 谢梦莎 郑文奇 Yang Fengping;Liu Feng;Xie Mengsha;Zheng Wenqi(School of Electrical and Automation Engineering,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学电气与自动化工程学院,江西南昌330013

出　　处：《华东交通大学学报》2020年第4期62-66,共5页Journal of East China Jiaotong University

基　　金：江西省自然科学基金项目(20192ACB21003)。

摘　　要：设计一种结合光电式和霍尔式两种不同类型速度传感器的新型速度传感器试验台。试验台由硬件和软件两部分组成:硬件部分主要包括工控机、变频器、交流异步电机、信号调理板、PCI高速数据采集卡等;软件部分主要使用Microsoft Visual Studio 2010软件开发工具下的VC++开发语言对高速数据采集卡采集到的数据进行处理,编写相关软件。在软件中,速度传感器输出信号根据信号周期和轮径值转换成相应的速度值显示;与此同时,输出信号的波形图也被实时显示。此外,信号周期、占空比和两路信号的相位差也被计算出来。通过对比设置速度和实测速度以及输出波形的相位差和占空比来判断速度传感器性能的优劣。研究表明:所设计的新型试验台稳定性好,实时性强,检测精度可以达到0.2%。This paper designs a new type of test bench that can detect photoelectric and Hall two different speed sensors.The test bench consists of two parts:hardware and software.The hardware part mainly includes industrial computer,frequency converter,AC asynchronous motor,signal conditioning board,PCI high-speed data acquisition card,etc.;the software part mainly uses the VC++development language under Microsoft Visual Studio 2010,and processes the data collected by the high-speed data acquisition card.In this software,the speed sensor output signal is converted into the corresponding speed value display according to the signal period and the wheel diameter value;at the same time,the waveform diagram of the output signal is also displayed in real time.In addition,the signal period,duty cycle,and phase difference of the two signals are also calculated.The performance of the speed sensor is judged by comparing the set speed with the measured speed and the phase difference and duty ratio of the output waveform.Taking the TQG15BL photoelectric speed sensor as an example,it is verified by experiments that the designed test bench has good stability and real-time performance,and the detection accuracy can reach 0.2%.

关 键 词：光电式速度传感器 高速数据采集卡 变频器 VC++ SQL Server 2010 

分 类 号：TP2061[自动化与计算机技术—检测技术与自动化装置]