电感参数可视化测量方法研究  

Research on the visual measurement method of inductance parameters

作　　者：熊磊 蔡光跃[1,2] Xiong Lei;Cai Guangyue(School of Communication&Information Engineering,Shanghai Technical Institute of Electronics&Information,Shanghai 201411,China;Shanghai Panhuan Electronic Technology Co.,Ltd.,Shanghai 200090,China)

机构地区：[1]上海电子信息职业技术学院通信与信息工程学院,上海201411 [2]上海泮奂电子科技有限公司,上海200090

出　　处：《电子技术应用》2023年第6期54-57,共4页Application of Electronic Technique

摘　　要：电感器有很多参数,其中最重要的两个参数决定了电感器的性能:电感值和饱和电流。既有的电感参数测量方法要么能比较精确地测量电感值,要么能用其他辅助手段测量饱和电流,但都不能同时测量电感值和饱和电流。结合数字存储示波器特殊的单次触发和图形显示技术,设计简易的电阻电感串联测量电路,根据电感值的测量定义,测量出电感两端的电压值以及取样电阻的电流变动值,从而计算出电感值。数字存储示波器显示测量曲线的拐点,即可求出电感饱和电流。通过实验验证,此方法能得到精确的电感值,同时能得到直观的饱和电流值。方法原理简单,设计合理,易于操作,是在实验室缺少LCR测试仪的情况下一个经济有效的电感参数测量方法。Inductors have many parameters,of which the two most important parameters determine the performance of the induc‐tor:inductance and saturation current.The existing inductance parameter measurement methods can either measure the inductance value more accurately or use other auxiliary means to measure the saturation current,but they cannot measure the inductance value and the saturation current at the same time.Combining the special single trigger and graphic display technology of the digi‐tal storage oscilloscope,this paper designs a simple resistance and inductance series measurement circuit.According to the mea‐surement definition of inductance value,it measures the voltage value at both ends of the inductance and the current change value of the sampling resistor to calculate the inductance value.The digital storage oscilloscope displays the inflection point of the mea‐surement curve,and the inductor saturation current can be calculated.It is verified by experiments that this method can obtain ac‐curate inductance values and at the same time obtain intuitive saturation current values.The method is simple in principle,reason‐able in design,and easy to operate.It is an economical and effective method for measuring inductance parameters in the absence of an LCR tester in the laboratory.

关 键 词：数字存储示波器 电感 饱和电流 可视化测量 单次触发 

分 类 号：TM401[电气工程—电器]