基于虚拟仪器的方形磁光玻璃电流传感器  

Square Magneto-Optic Glass Current Sensor Based on Virtual Instrument

作　　者：万洵[1] 王美蓉[1] 赵建林[1] 

机构地区：[1]西北工业大学理学院,陕西西安710072

出　　处：《西北工业大学学报》2009年第4期571-576,共6页Journal of Northwestern Polytechnical University

基　　金：西北工业大学研究生创业种子基金(Z200862)资助

摘　　要：理论分析和实验研究了以方形磁光玻璃作为传感头敏感元件的光学电流传感器的传感特性,利用基于LabVIEW的虚拟仪器技术实现了该光学电流传感器的信号处理,同时从理论分析和数值模拟2个角度分析全反射引入的反射相移对系统输出的影响。实验结果表明,当待测电流值从100～340A线性增大时,传感器系统的输出具有很高的线性度,实验值与理论值仅相差1个比例系数,与反射相移的模拟结果相符。通过虚拟仪器的"校准"操作修正后,实验值与理论值十分吻合。An optical current sensor based on square magneto-optic glass is demonstrated experimentally, and a correspondingⅥ(virtual instrument) signal processing system for both signal acquisition and analysis is established.In addition,the influence of the phase shift caused by total reflection is theoretically analyzed and numerically simulated as presented in Fig.4 of the full paper.It is revealed that the reflection phase shift is independent of the incident angle but has a relatively large effect on the lineari...

关 键 词：光学传感器 信号处理 光学电流传感器 VI信号处理 磁光玻璃 反射相移 虚拟仪器 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]