Capacitive Clamp Used in Standards; Analysis of Test Method and New Results
J. Dansou, R. Weber, Yves Raingeaud, Jean Baillou · 1997
This article is based on the critical analysis of the standard EMC test procedures using capacitive clamp (ISO 7637-3, IEC 1000-4-4,...)· It gives new results based on the time observation of the coupling phenomena simulated by the capacitive clamp. It also offers a synthesis of the results not currently included in standard documents. It reflects on the suitability of the suggested test pulse levels in the standard procedures. It also points out the existence in certain cases, of an incorrect correlation between the capacitive and inductive coupling simulated by the capacitive clamp and an actual electromagnetic cross-talk observed between a victim and a polluter cable. Many practical results not specified in the standardization, are given in this article, namely about the effects of the impedance conditions of the D.U.T. (Device Under Test) on the coupling simulation by capacitive clamp.