基于虚拟仪器的农业物料物性测试实验系统  

Experimental system for testing physical properties of agricultural materials based on virtual instruments

作　　者：付函 王玲[2] 李伟希 郭坤鹏 段洁利[1] FU Han;WANG Ling;LI Weixi;GUO Kunpeng;DUAN Jieli(College of Engineering,South China Agricultural University,Guangzhou 510642,China;College of Engineering,China Agricultural University,Beijing 100083,China)

机构地区：[1]华南农业大学工程学院,广东广州510642 [2]中国农业大学工学院,北京100083

出　　处：《实验技术与管理》2022年第2期105-109,共5页Experimental Technology and Management

基　　金：国家自然科学基金项目(51905179);华南农业大学教育教学研究和改革项目(JG19025);广东省一流本科课程建设项目(粤教高函[2020]16号);教育部产学研协同育人项目(教高司函[2019]12号)。

摘　　要：为提高物料物性测试设备的便捷性和使用性价比,设计了一种基于虚拟仪器的农业物料物性测试实验系统。该系统基于质地分析检测原理,在SolidWorks软件中设计不同类型检测探头的机械系统虚拟样机,基于LabVIEW开发相应的测控软件,通过控制检测探头以设定的速度向被测样品施加恒定时间的位移,实时采集、显示和存储探头与样品间的作用力,获取物性参数分析的基础数据。测试结果表明该系统能够较好地模拟探头与样品间的互作过程,为学生使用LabVIEW软件开展自主性、创新性实验提供了实践平台。In order to improve the convenience and cost performance of material properties testing equipment, an agricultural material properties testing experimental system based on virtual instrument is designed. Based on the principle of texture analysis and detection, the virtual prototype of mechanical system with different types of detection probes is designed in SolidWorks software. The corresponding measurement and control software is developed by using LabVIEW. By controlling the detection probe to impose displacement with a constant time on the measured sample at a set speed, the force between the probe and the sample is collected, displayed and stored in real time, and the basic data for the analysis of physical parameters are obtained. The test results show that the system can well simulate the interaction process between the probe and the sample, which provides a practical platform for students to carry out independent and innovative experiments using LabVIEW software.

关 键 词：质构分析 农业物料 虚拟仪器 LABVIEW 物性参数 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP391.9[自动化与计算机技术—控制科学与工程]