线缆屏蔽效能测试方法的比较与分析

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摘要：针对不同的电缆屏蔽效能测试方法进行分析对比，对主流的7种测试方法进行剖析，得到它们不同的优缺点，并讨论各种方法的有效性。研究目的主要是系统性地分析和比较主要的线缆屏蔽效能测试方法之间的差异，并为屏蔽效能测试方法的选用提供指导建议。

关键词：电磁兼容；转移阻抗；屏蔽衰减；线缆

中图分类号：U472.9      收稿日期：2025-02-12      DOI：10.19999/j.cnki.1004-0226.2025.04.025

Comparison and Analysis of Cable Shielding Efficiency

Testing Methods

Chen Jiamin

Shanghai Motor Vehicle Testing and Certification Technology Research Center Co.，Ltd.，Electromagnetic and

Communication Testing Research Laboratory，Shanghai 201805，China

Abstract：Analyze and compare different cable shielding effectiveness testing methods， analyze the seven mainstream testing methods， identify their different advantages and disadvantages， and discuss the effectiveness of each method. This paper aims to systematically analyze and compare the differences between the main cable shielding effectiveness testing methods， and provide guidance and suggestions for the selection of shielding effectiveness testing methods.

Key words：Electromagnetic compatibility；Transfer impedance；Screening attenuation；Cable

1 前言

随着汽车电气化的发展，智能化汽车对传感器和执行器的需求大幅增加，不可避免地导致车辆内部线缆线束的数量增多。（剩余8942字）