基于虚拟仪器的脉冲强磁体电阻电感实时自动测量  

Resistance and inductance automatic measurement of pulsed high magnetic coil in real time based on virtual instrument technology

作　　者：韩小涛[1] 罗季[1] 谢剑锋[1] 

机构地区：[1]华中科技大学电气与电子学院强磁场中心,武汉430074

出　　处：《电测与仪表》2008年第11期22-25,共4页Electrical Measurement & Instrumentation

基　　金：武汉市晨光计划资助项目(200850731349)

摘　　要：为满足脉冲强磁场放电前后脉冲磁体电阻、电感实时监测的需要,本文提出了一种上层控制软件采用LabVIEW虚拟仪器平台、底层采用GPIB通信卡连接LRC测试设备的系统设计方案,实现了对脉冲磁体电阻电感值的远程实时测量,并可预测磁体温度变化趋势。文章重点阐述了该测量系统的硬件构成、软件实现以及温度变化趋势预测算法,结合具体实验给出了测量结果,应用效果较好。采用本文提出的设计思想,可以很方便构造基于不同LRC测试设备的测量系统,适用性较强。In order to monitor the resistance and inductance of main magnetic field producing coil in real time before and after a discharge, a resolution, which the control program is made in NI Labview software and a 4-wire bridge LRC meter is connected with an industrial PC by means of the GPIB （IEEE488） protocol, is put forward. The hardware components and software design are described in details, an algorithm based on linear extrapolation applied to predict coil temperature is designed too. The measurement data shows that this monitor system can be used in pulsed high magnetic field facility well and this system can be transplanted to other systems using different LRC meter easily.

关 键 词：强磁场 虚拟仪器 LRC测试 LABVIEW 

分 类 号：TM934[电气工程—电力电子与电力传动]