EN 61788-13:2012

SLOVENSKI STANDARD
01-december-2012
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SIST EN 61788-13:2003
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Superconductivity - Part 13: AC loss measurements - Magnetometer methods for
hysteresis loss in superconducting multifilamentary composites
/
Supraconductivité - Partie 13: Mesure des pertes en courant alternatif - Méthodes de
mesure par magnétomètre des pertes par hystérésis dans les composites
multifilamentaires supraconducteurs
Ta slovenski standard je istoveten z: EN 61788-13:2012
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
29.050 Superprevodnost in prevodni Superconductivity and
materiali conducting materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61788-13
NORME EUROPÉENNE
October 2012
EUROPÄISCHE NORM
ICS 17.220; 29.050 Supersedes EN 61788-13:2003

English version
Superconductivity -
Part 13: AC loss measurements -
Magnetometer methods for hysteresis loss in superconducting
multifilamentary composites
(IEC 61788-13:2012)
Supraconductivité -  Supraleitfähigkeit -
Partie 13: Mesure des pertes Teil 13: Messung der
en courant alternatif - Wechselstromverluste -
Méthodes de mesure par magnétomètre Magnetometerverfahren zur Messung
des pertes par hystérésis dans les der Hystereseverluste von supraleitenden
composites multifilamentaires Multifilament-Verbundleitern
supraconducteurs (IEC 61788-13:2012)
(CEI 61788-13:2012)
This European Standard was approved by CENELEC on 2012-08-29. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61788-13:2012 E
Foreword
The text of document 90/302/FDIS, future edition 2 of IEC 61788-13, prepared by IEC/TC 90
"Superconductivity" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2013-05-29
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-08-29
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61788-13:2003.

EN 61788-13:2003:
- to extend to the measurement of superconductors in general, in various sample sizes and shapes,
and at temperatures other than 4,2 K;
- to use the word “uncertainty” for all quantitative (associated with a number) statistical expressions
and eliminate the quantitative use of “precision” and “accuracy” in accordance with the decision at
the June 2006 IEC/TC 90 meeting in Kyoto.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61788-13:2012 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 61788-13:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60050 Series International Electrotechnical Vocabulary - -
(IEV)
IEC 61788-5 - Superconductivity - EN 61788-5 -
Part 5: Matrix to superconductor volume
ratio measurement - Copper
to superconductor volume ratio
of Cu/Nb-Ti composite superconductors

IEC 61788-13 ®
Edition 2.0 2012-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Superconductivity –
Part 13: AC loss measurements – Magnetometer methods for hysteresis loss in

superconducting multifilamentary composites

Supraconductivité –
Partie 13: Mesure des pertes en courant alternatif – Méthodes de mesure par

magnétomètre des pertes par hystérésis dans les composites multifilamentaires

supraconducteurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 17.220, 29.050 ISBN 978-2-83220-292-0

– 2 – 61788-13 © IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General specifications . 8
4.1 Target uncertainty . 8
4.2 Uncertainty and uniformity of the applied field . 8
4.3 VSM calibration . 8
4.4 Temperature . 9
4.5 Specimen length . 9
4.6 Specimen orientation and demagnetization effects . 9
4.7 Normalization volume . 9
4.8 Mode of field cycling or sweeping . 9
5 The VSM method of measurement . 10
5.1 General . 10
5.2 VSM measurement principle . 10
5.3 VSM specimen preparation . 10
5.4 VSM measurement conditions and calibration . 12
5.4.1 Field amplitude . 12
5.4.2 Direction of applied field . 12
5.4.3 Rate of change of the applied field (sweep rate) . 12
5.4.4 Waveform of the field change . 12
5.4.5 Specimen size and shape correction . 12
5.4.6 Allowance for addendum (background subtraction) . 13
5.4.7 Data point density . 13
6 Test report . 13
6.1 General . 13
6.2 Initiation of the test . 13
6.3 Technical details . 13
Annex A (informative) The SQUID method of measurement . 15
Annex B (normative) Extension of the standard to the measurement of
superconductors in general . 16
Annex C (informative) Uncertainty considerations . 18
Bibliography . 23

Figure 1 – A typical experimental setup of VSM measurement . 11
Figure 2 – Three alternative specimen configurations for the VSM measurement . 11

Table C.1 – Output signals from two nominally identical extensometers . 19
Table C.2 – Mean values of two output signals . 19
Table C.3 – Experimental standard deviations of two output signals . 19
Table C.4 – Standard uncertainties of two output signals . 20
Table C.5 – Coefficient of variations of two output signals . 20

61788-13 © IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
SUPERCONDUCTIVITY –
Part 13: AC loss measurements –
Magnetometer methods for hysteresis loss
in superconducting multifilamentary composites

FOREWORD
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