基于虚拟仪器的扭矩测试系统的设计与实现  

Design and Implementation of Torque Test System Based on Virtual Instrument

作　　者：杨阳[1] 唐虹[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《计算机测量与控制》2012年第4期883-886,共4页Computer Measurement &Control

基　　金：西北工业大学研究生创业种子基金项目(Z2011060)

摘　　要：针对国内扭矩扳手检测设备工作效率低下的问题,研究开发了一款基于虚拟仪器的新型扭矩自动测试系统;系统上位机采用了虚拟仪器开发平台LabWindows/CVI,下位机辅助平台以单片机为核心构建,利用RS485通讯技术,实现了对扭矩的自动加载和精确测量;通过合理的软硬件方案设计,使系统最重要的技术指标测量精度达到了3‰;软件以组件式的设计思想编制,提高了软件的质量和扩展性;经过实际使用证明,该系统能够显著提高扭矩扳手的检测效率,具有较高的实用性。A modern torque automatic test system based on virtual instrument is designed for the domestic torque wrench test equipments can not meet the current detection requirements. The system uses virtual instrument development platform LabWindows/CVI, and constructs lower computer based on singlechip to realize automatic loading and precision measurement of torque by RS485 communication technology. The accuracy of measurement reaches 3‰ through the rational design of hardware and software. The software is written according to software reuse technology and it has high quality and expansibility. It improves the detection efficiency.

关 键 词：扭矩测试 虚拟仪器 软件复用 RS-485总线 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]