基于矢量比较法的 LCR 实验设计
代少玉,刘 玥,任柳越,武颖丽 ∗
西安电子科技大学 物理学院,陕西 西安 710071
Experimental Design of LCR Measurement Based onVector Comparison Method
DAI Shaoyu,LIUYue,REN Liuyue,WU Yingli*
School of Physics,Xidian University,Xi'an 710071,China
摘要 电感(L)、电容(C)与电阻(R)作为电路设计的基础无源元件,其参数的精确测量对电路设计、信号处理、系统稳定性分析具有重要意义。 本文提出一种基于矢量比较法的 LCR 测量方案,利用示波器与信号源等常规实验设备,测量获取包含相位信息的复数电压值,进一步计算 LCR 参数的数值,其中通过开尔文四端连接法消除线电阻对实验的影响。 该设计方案适用于实验教学及工程预研场景。
关键词:
矢量比较法
LCR 测量
四端连接法
Abstract: Inductance (L),capacitanee (C),and resistanee (R) serve as fundamental passive components incirevit design,and the precise measuremnent of their paramelers is crucial for cirevuit design, signal processing,and system stability analysis,'This paper proposes an LCR measurement scheme based on the vector comparisonmethod , utilizing common laboratory equipment such as oscilloscopes and signal generators to obtain complexvolage values containing phase information, from which the numerical values of LCR parameters are furthercaleulated,.The inlluence of lead resistance on the experiment is eliminated through the Kelvin four-terminalcomnection method. This design scheme is suitable for experimental teaching and engineering preliminaryresearch scenarios.
Key words:
vector comparison
LCR measurement
four-lerminal connection
出版日期: 2025-12-25
发布日期: 2025-12-25
整期出版日期: 2025-12-25
引用本文:
代少玉, 刘 玥, 任柳越, 武颖丽 . 基于矢量比较法的 LCR 实验设计[J]. 大学物理实验, 2025, 38(6): 65-69.
DAI Shaoyu, LIUYue, REN Liuyue, WU Yingli. Experimental Design of LCR Measurement Based onVector Comparison Method. Physical Experiment of College, 2025, 38(6): 65-69.
链接本文:
https://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2025.06.012
或
https://dawushiyan.jlict.edu.cn/CN/Y2025/V38/I6/65
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