1、 INTERNATIONAL STANDARD IEC61000-4-33 First edition2005-09 Electromagnetic compatibility(EMC)Part 4-33:Testing and measurement techniques Measurement methods for high-power transient parameters Reference number IEC 61000-4-33:2005(E)BASIC EMC PUBLICATION LICENSED TO MECON Limited.-RANCHI/BANGALOREFO
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8、ice Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC61000-4-33 First edition2005-09 Electromagnetic compatibility(EMC)Part 4-33:Testing and
9、 measurement techniques Measurement methods for high-power transient parameters IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing fro
10、m the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational E
11、lectrotechnical Commission XB BASIC EMC PUBLICATION LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61000-4-33?IEC:2005(E)CONTENTSFOREWORD.4INTRODUCTION.61Scope.72Normative references.73Terms and definitions.84Measurement of high-pow
12、er transient responses.94.1Overall measurement concepts and requirements.94.2Representation of a measured response.124.3Measurement equipment.124.4Measurement procedures.275Measurement of low frequency responses.276Calibration procedures.286.1Calibration of the entire measurement channel.286.2Calibr
13、ation of individual measurement channel components.316.3Approximate calibration techniques.37Annex A(normative)Methods of characterizing measured responses.40Annex B(informative)Characteristics of measurement sensors.45Annex C(normative)HPEM measurement procedures.59Annex D(informative)Two-port repr
14、esentations of measurement chain components.62Bibliography.69Figure 1 Illustration of a typical instrumentation chain for measuring high-powertransient responses.10Figure 2 Illustration of a balanced sensor and cable connecting to an unbalanced(coaxial)line where Iout+Iin=I1.16Figure 3 Examples of s
15、ome simple baluns 4b.18Figure 4 A typical circuit for an in-line attenuator in the measurement chain.18Figure 5 Illustration of the typical attenuation of a nominal 20 dB attenuator for a50?system,as a function of frequency.19Figure 6 Typical circuit diagram for an in-line integrator.20Figure 7 Plot
16、 of the transfer function of the integrating circuit of Figure 6.20Figure 8 Illustration of the frequency dependent per-unit-length signal transmissionof a standard coaxial cable,and a semi-rigid coaxial line.21Figure 9 Illustration of sensor cable routing in regions not containing EM fields.24Figure 10 Treatment of sensor cables when located in a region containing EM fields.25Figure 11 Conforming cables to local system shielding topology.26Figure 12 Correct and incorrect methods of cable routin
