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電感參數(shù)可視化測量方法研究
電子技術(shù)應用 2023年6期
熊磊1,,蔡光躍1,,2
(1.上海電子信息職業(yè)技術(shù)學院 通信與信息工程學院,,上海 201411,;2.上海泮奐電子科技有限公司,,上海 200090)
摘要: 電感器有很多參數(shù),,其中最重要的兩個參數(shù)決定了電感器的性能:電感值和飽和電流,。既有的電感參數(shù)測量方法要么能比較精確地測量電感值,,要么能用其他輔助手段測量飽和電流,,但都不能同時測量電感值和飽和電流,。結(jié)合數(shù)字存儲示波器特殊的單次觸發(fā)和圖形顯示技術(shù),設計簡易的電阻電感串聯(lián)測量電路,,根據(jù)電感值的測量定義,,測量出電感兩端的電壓值以及取樣電阻的電流變動值,從而計算出電感值,。數(shù)字存儲示波器顯示測量曲線的拐點,,即可求出電感飽和電流。通過實驗驗證,,此方法能得到精確的電感值,,同時能得到直觀的飽和電流值。方法原理簡單,,設計合理,,易于操作,是在實驗室缺少LCR測試儀的情況下一個經(jīng)濟有效的電感參數(shù)測量方法,。
中圖分類號:TM401
文獻標志碼:A
DOI: 10.16157/j.issn.0258-7998.233846
中文引用格式: 熊磊,,蔡光躍. 電感參數(shù)可視化測量方法研究[J]. 電子技術(shù)應用,2023,,49(6):54-57.
英文引用格式: Xiong Lei,,Cai Guangyue. Research on the visual measurement method of inductance parameters[J]. Application of Electronic Technique,2023,,49(6):54-57.
Research on the visual measurement method of inductance parameters
Xiong Lei 1,,Cai Guangyue1,2
(1.School of Communication & Information Engineering,, Shanghai Technical Institute of Electronics & Information,, Shanghai 201411, China,;2.Shanghai Panhuan Electronic Technology Co.,, Ltd. ,, Shanghai 200090, China)
Abstract: Inductors have many parameters, of which the two most important parameters determine the performance of the inductor: 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 digital storage oscilloscope, this paper designs a simple resistance and inductance series measurement circuit. According to the measurement 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 measurement curve, and the inductor saturation current can be calculated. It is verified by experiments that this method can obtain accurate inductance values and at the same time obtain intuitive saturation current values. The method is simple in principle, reasonable 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.
Key words : digital storage oscilloscope,;inductance;saturation current,;visual measurement,;single trigger

0 引言

電感器是電子設備中基本的電子元器件之一,在電子電路中的應用不可或缺,,主要組成濾波,、延遲、振蕩和陷波等功能模塊,,在電路中有篩選信號,、過濾噪聲、穩(wěn)定電流以及抑制高頻干擾等作用,。電感器一般有兩個重要參數(shù):電感值(Inductance)和飽和電流(Saturation Current),。測量這兩個參數(shù)已經(jīng)有很多理論和實踐的方法,如電橋測量法,、電路諧振計算法,、數(shù)字萬用表測量法。這些方法各有利弊,,但都無法同時直接測量飽和電流,。因此設計一種簡單易用、利于推廣的電感參數(shù)測量方法是電子測量技術(shù)人員的一項重要挑戰(zhàn),。數(shù)字存儲示波器是普及通用的電子測試測量儀器,,結(jié)合它的可視化可存儲等顯著優(yōu)點,設計出一種原理清晰,、操作簡便的測量方法,,不僅能較為準確地同時測出一般電感器尤其是功率電感器的電感值和飽和電流,還能直觀地顯示測量曲線,。



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作者信息:

熊磊1,,蔡光躍1,2

(1.上海電子信息職業(yè)技術(shù)學院 通信與信息工程學院,,上海 201411,;2.上海泮奐電子科技有限公司,上海 200090)


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