摘要
抗干扰能力是衡量数字多用表测试性能中使用的重要技术指标。详细介绍了数字多用表的抗干扰能力测试的工作原理和实现方法,给出了自动测试系统的架构图及程序流程图。设计出1套自动测试装置,该装置以虚拟仪器编程语言LabVIEW为平台,能够完成对数字多用表抗干扰能力进行自动测试的核心功能,具有一定的工程实用价值。最后给出了系统的测试结果,实验结果表明,该装置性能稳定且满足数字多用表抗干扰能力的测试要求。基于LabVIEW的自动测试系统具有操作简单、人机界而友好、易于升级的优点。
The capability for noise restrain is an important performance in the measurement of DMM. This article introduces the principle and realization method for noise restrain of DMM and gives the automatic testing system stricture figure and software flow process diagram. An auto-testing device is designed, this can perform the function of automatic test for capability of DMM noise rejection and has some practical value based on virtual instrument software LabVIEW. At last the result of testing is showed,the conclusion indicates that this test device can meet requirement for performance in the measurement of DMM. This testing system has the advantages of simple operation, kind interface between computer and user, and easy upgrading.
出处
《电子测量技术》
2012年第10期95-98,共4页
Electronic Measurement Technology
