基于虚拟仪器技术的微摩擦测试系统开发  

Development of a Microtribology Measuring System Based on Virtual Instrument Technology

作　　者：蒋喆[1] 程先华[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《上海交通大学学报》2006年第10期1715-1718,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(50475023);上海市纳米专项资助项目(0252nm014)

摘　　要：针对微摩擦学测试设备存在的载荷范围不合适和无法进行动态测量问题,将虚拟仪器技术应用于微摩擦测试,开发出一套球接触滑动往复摩擦测试系统.测试系统以LabVIEW软件为平台,采用图形化编程.通过二维位移平台调节载荷大小,往复平台调节滑动摩擦速度,考察材料在不同工况下的摩擦性能.结果表明,系统量程为0.001～1 N,其动态分辨力小于1 mN.用该系统测得妹材料的摩擦系数曲线符合材料的摩擦特性,证明了系统的可用性,且具有可靠、易用、开放、灵活和低成本等特点.The undesirability of load range and incapability of dynamic measurement are the main problems on current microtribological measuring instruments. Aiming at solving the two problems, a ball on disk reciprocating micro-friction measuring system was developed by adopting virtual instrument technology. Based on the platform of LabVIEW, this system uses graphic programming. Adjusting load by 2D displacement table and adjusting sliding velocity by the reciprocating table, material's tribological properties under different working conditions can be measured by this system. The test results show that the measuring range of the system is 0.001-1 N while its dynamic resolution is less than 1 mN. The chart of material's friction coefficient measured by this system complies with its tribological properties, which proves the usability of this system. This system takes the advantages of reliability, operability, openness, flexibility and low cost, compared to traditional measuring instruments.

关 键 词：微摩擦 测试 虚拟仪器 LABVIEW 

分 类 号：TG115.58[金属学及工艺—物理冶金]