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A Study of Integrated Sensor for Measuring Pulse Current
Author(s): 
Pages: 17-23
Year: Issue:  6
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  印制板线圈脉冲电流集成式传感器特性参数;
Abstract: 在印制板的双面上均匀密布环状印刷线路,形成印制板式线圈,代替用导线绕制的传统罗氏线圈.在这种印刷线圈中,印制线路既充当传统罗氏线圈的小线匝的作用,还起着信号的耦合和传输作用.本文分析了双面板印刷线圈的构成方法、测量脉冲电流的工作机理、等效电路模型和线圈本身上升时间的计算方法.研究了印刷线圈的单面、双面和两个顺次串联线圈的自感系数、内阻、分布电容、阻抗特性和相频特性,并归纳了影响印刷线圈上述电气参数的重要因素.利用所制作的印制板式传感线圈测量脉冲功率源中的脉冲大电流.理论研究与实验表明,在不影响传感器带宽和动态特性的前提下,可以用环状印刷线路代替传统罗氏线圈的绕线;将印刷线圈顺次串联,能有效提高传感器的信噪比.
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