弹性联轴器精密测试仪器高精度同步采集系统研究  

Research on high precision synchronous acquisition system of precision testing instrument for elastic coupling

作　　者：陈光林 赵连玉[1,2] 王成林 龙凤祥 CHEN Guanglin;ZHAO Lianyu;WANG Chenglin;LONG Fengxiang(Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control,Tianjin University of Technology,Tianjin 300384,China;National Demonstration Center for Experimental Mechanical and Electrical Engineering Education,Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]天津理工大学天津市先进机电系统设计与智能控制重点实验室,天津300384 [2]天津理工大学机电工程国家级实验教学示范中心,天津300384

出　　处：《天津理工大学学报》2024年第5期40-46,共7页Journal of Tianjin University of Technology

基　　金：新一代人工智能重大项目(2018AAA0103004);天津市重点研发计划(20YFZCGX00550)。

摘　　要：扭矩和转角是弹性联轴器的重要参数,文中设计了一种基于现场可编程门阵列(field programmable gate array,FPGA)的联轴器测试台高精度同步采集系统。利用圆光栅的角度测量功能获取联轴器摆角,光栅测头采集栅尺上的角度位置信号,转换为二进制角度信息并通过双向同步串行(bidirectional synchronous serial,BISS)协议发送至FPGA进行协议解码。从盘式耦合扭矩传感器获取扭矩信息,然后以差分频率信号传递至集成在FGPA上的NI-9608数据采集卡。系统利用C#+Windows呈现基础(windows presentation foundation,WPF)架构设计上位机,实现了扭矩数据和转角数据高速同步采集、高效存储,实验表明在适应不同转速、不同采样频率、通信环境复杂的条件下测量装置工作性能良好,该系统适用于联轴器的扭矩测量,有很好的使用价值和推广前景。Torque and rotation angle are important parameters of elastic coupling.This paper designs a high-precision synchronous acquisition system of coupling test bench based on field programmable gate array(FPGA).The angle measurement function of the circular grating is used to obtain the swing angle of the coupling.The grating probe collects the angular position signal on the grating ruler,converts it into binary angle information,and sends it to FPGA for protocol decoding through bidirectional synchronous serial(BISS)protocol.The torque information is obtained from the disc coupled torque sensor,and then transmitted to the NI-9608 data acquisition card integrated on the FGPA as a differential frequency signal.This system uses C#+windows presentation foundation(WPF)architecture to design the upper computer,which realizes high-speed synchronous collection and efficient storage of torque data and rotation angle data.Experiments show that the measuring device works well under the conditions of adapting to different rotational speeds,different sampling frequencies and complex communication environment.This system is suitable for torque measurement of coupling,and has application value and promotion prospects.

关 键 词：扭矩/角度测试 现场可编程门阵列 数据采集 弹性联轴器 

分 类 号：TH122[机械工程—机械设计及理论]