一种宽频带微电流传感器的设计  

Design of a Wide Band Low Current Transducer Used for Partial Discharge Detection

作　　者：朱俊栋[1] 杨连殿[1] 贾江波[1] 古涛 杨兰均[1] 张乔根[1] 

机构地区：[1]西安交通大学电气工程学院,西安710049 [2]西安市高压供电局,西安710000

出　　处：《高电压技术》2005年第11期1-3,共3页High Voltage Engineering

基　　金：国家自然科学基金资助项目(50477027)

摘　　要：为测量陡脉冲小信号,经磁芯选择、参数优化研制了一种罗科夫斯基线圈宽带微电流传感器。测试表明其线性度好、回差变化小、阶跃响应时间快,带宽396 kHz^120 MHz,灵敏度3.27 V/A,适于陡脉冲小信号测量。A wide band low current transducer is investigated on the basis of Rogowski coil. By selecting magnetic cores and optimizing chief parameters, the current transducer is developed with characteristics of a frequency bandwidth of 396-120MHz and a sensitivity of 3. 27VIA. The test results show the transducer is characterized by a fast step response, good linearity and small changes on delay.

关 键 词：罗科夫斯基线圈 宽频带 局部放电 电流传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]