IEC 60151-8-1966 Measurements of the electrical properties of electronic tubes Part 8 Measurement of cathode heating time and heater warm-up time《电子管电性能的测量 第8部分 阴极加热时间和热丝加热时间的测量》.pdf

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IEC 60151-8-1966 Measurements of the electrical properties of electronic tubes Part 8  Measurement of cathode heating time and heater warm-up time《电子管电性能的测量 第8部分 阴极加热时间和热丝加热时间的测量》.pdf_第1页
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1、Pubcatioa 151-8 de ia CE1 (196) CORRECTIF 1 Page II, figure 4 Page 12, figure 5: Intervertir ces deux figures. IEC Pubkation 151-8 (1966) CORRIGENDUM 1 Page I I, Figure 4 Page 12, Figure 5: Invert these two figures. Juillet 1967 NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 601 51 -a Premire d

2、ition First edition 1966-01 Mesures des caractristiques lectriques des tubes lectroniques Partie 8: Mesure des temps de chauffage de la cathode et du filament Measurements of the electrical properties of electronic tubes and valves Part 8: Measurement of cathode heating time and heater warm-up time

3、Numro de rfrence Reference number CEIIIEC 60151-8: 1966 Numros des publications Numbering Depuis le ler janvier 1997, les publications de la CE1 sont numrotes partir de 60000. Publications consolides Les versions consolides de certaines publications de la CE1 incorporant les amendements sont disponi

4、bles. Par exemple, les numros ddition 1.0, 1.1 et 1.2 indiquent respectivement la publication de base, la publication de base incorporant lamendement 1, et la publication de base incorporant les amendements 1 et 2. Validit de la prsente publication Le contenu technique des publications de la CE1 est

5、 constamment revu par la CE1 afin quil reflete ltat actuel de la technique. Des renseignements relatifs la date de reconfir- mation de la publication sont disponibles dans le Catalogue de la GEI. Les renseignements relatifs des questions ltude et des travaux en cours entrepris par le comit technique

6、 qui a tabli cette publication, ainsi que la liste des publications tablies, se trouvent dans les documents ci- dessous: (Site web de la CEI* Catalogue des publications de la CE1 Publi annuellement et mis jour rgulirement (Catalogue en ligne)* Bulletin de la CE1 Disponible la fois au ., de la CEI et

7、 comme priodique imprim Terminologie, symboles graphiques et littraux En ce qui concerne la terminologie gnrale, le lecteur se reportera la CE1 60050: Vocabulaire Electro- technique International (VEI). Pour les symboles graphiques, les symboles littraux et les signes dusage gnral approuvs par la CE

8、I, le lecteur consultera la CE1 60027: Symboles littraux 3 utiliser en lectrotechnique, la CE1 6041 7: Symboles graphiques utilisables sur le materiel. Index, rele ve et compilation des feuilles individuelles, et la CE1 60617: Symboles graphiques pour schmas. * Voir adresse .site web sur la page de

9、titre As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. Consolidated publications Consolidated versions of some IEC publications including amendments are available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication

10、 the base publication incor- porating amendment 1 and the base publication incorporating amendments 1 and 2. Validity of this publication lhe technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relat

11、ing to the date of the reconfirmation of the publication is available in the IEC catalogue. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is to be found at th

12、e following IEC sources: IEC web site Catalogue of IEC publications Published yearly with regular updates (On-line catalogue)* IEC Bulletin Available both at the IEC web site* and as a printed periodical Terminology, graphical and letter symbols For general terminology, readers are referred to I EC

13、60050: International Electrotechnical Vocabularv (IEV). For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to publications IEC 60027: Letter symbols to be used in electrical technology, IEC 60417: Graphical symbols for use on equipment. Inde

14、x, survey and compilation of the single sheets and IEC 60617: Graphical symbols for diagrams. * See web site address on title page NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 601 51 -8 Premire dition First edition 1966-01 Mes u res des caractris t iq ues lectriques des tubes lectroniques Par

15、tie 8: Mesure des temps de chauffage de la cathode et du filament Measurements of the electrical properties of electronic tubes and valves Part 8: Measurement of cathode heating time and heater warm-up time O IEC 1966 Droits de reproduction rservs - Copyright - all rights reserved Aucune partie de c

16、ette publication ne peut tre reproduite ni No part of this publication may be reproduced or utilized in utilise sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical. procd, lectronique ou mcanique, y compris la photo- including photocopying and microfilm, wi

17、thout permission in copie et les microfilms, sans laccord crit de lditeur. writing from the publisher. International Electrotechnical Commission Telefax: +41 22 919 0300 3, rue de Varemb Geneva, Switzerland IEC web site http: /www.iec.ch e-mail: inmailiec.ch F CODE PRIX PRICE CODE Pour prix, voir ca

18、talogue en vigueur For price, see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission MemnyHaponHaR BTPOTXHWCR HOMHCCHR O -2- COMMISSION LECTROTECHNIQUE INTERNATIONALE MESURES DES CARACTRISTIQUES LECTRIQUES DES TUBES LECTRONIQUES Huitime partie : Me

19、sure des temps de chauffage de la cathode et du filament PRAMBULE Les dcisions ou accords officiels de la CE I en ce qui concerne les questions techniques, prpars par des Comits les tubes destins tre utiliss en polarisation automatique, ou indiffremment en polarisation automatique ou fixe, doivent t

20、re mesurs en polarisation automatique. 2.3 Prcautions 2.3.1 Temprature avant les mesures An que toutes les parties du tube mesurer soient la temprature ambiante, aucune tension de chauffage ne doit tre applique pendant une dure dau moins 1 heure avant la mesure. 2.3.2 Impdance de source La rsistance

21、 interne de la source de chauffage doit tre ngligeable par rapport la rsistance froid du filament. 2.3.3 Instrument de mesure Pour obtenir une prcision convenable, il est important que linstrument de mesure soit peu amorti. 2.3.4 Circuit de mesure de la rapidit dchauffement de la cathode (voirjgure

22、4) La rsistance R doit tre rglable pour maintenir les indications sur lchelle de linstrument de mesure. Si possible la valeur de la rsistance R doit tre rgle pour galer la valeur de la rsistance interne du tube mesurer, afin dobtenir la dviation maximale. Pour obtenir une prcision conve- nable, le c

23、ondensateur C doit avoir de faibles pertes et une impdance faible par rapport celle de linstrument de mesure. 3. 3.1 Mesure du temps de chauffage du Marnent Dejnition du temps de chauffage dujlament Temps ncessaire pour que la tension aux bornes du filament atteigne une valeur gale 0,8 fois sa valeur nominale lorsquune tension de valeur gale quatre fois la valeur nominale de la tension de chauffage est applique au filament par lintermdiaire dune rsistance en srie de valeur gale trois fois la rsistance nominale du filament.

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