IEC 60151-3-1963 Measurements of the electrical properties of electronic tubes Part 3 Measurement of equivalent input and output admittances《电子管电性能的测量 第3部分 等效输入和输出导纳的测量》.pdf

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IEC 60151-3-1963 Measurements of the electrical properties of electronic tubes Part 3  Measurement of equivalent input and output admittances《电子管电性能的测量 第3部分 等效输入和输出导纳的测量》.pdf_第1页
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IEC 60151-3-1963 Measurements of the electrical properties of electronic tubes Part 3  Measurement of equivalent input and output admittances《电子管电性能的测量 第3部分 等效输入和输出导纳的测量》.pdf_第5页
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1、NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 601 51 -3 Premire dition First edition 1963-01 Mesu res des caractristiques lectriq ues des tubes lectroniques Partie 3: Mesu re des adrn ittances q u valentes dentre et de sortie Measurements of the electrical properties of electronic tubes and va

2、lves Part 3: Measurement of equivalent input and output admittances Numro de rfrence Reference number CEI/IEC 60151-3: 1963 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 certa

3、ines publications de la CE1 incorporant les amendements sont disponibles. 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 pre

4、sente publication Le contenu technique des publications de la CE1 est constamment revu par la CE1 afin quil reflte ltat actuel de la technique. Des renseignements relatifs la date de reconfir- mation de la publication sont disponibles dans le Catalogue de la CEI. Les renseignements relatifs des ques

5、tions ltude et des travaux en cours entrepris par le comit technique qui a tabli cette publication, ainsi que la liste des publications tablies, se trouvent dans les documents ci- dessous: Site web) de la CEP Catalogue des publications de la CE1 Publi annuellement et mis jour rgulirement (Catalogue

6、en ligne)* Bulletin de la CE1 Disponible la fois au .site weba de la CEI* et comme priodique imprim Terminologie, symboles graphiques et littraux En ce qui concerne la terminologie gnrale, le lecteur se reportera la GEI 60050: Vocabulaire Electro- technique International (VEI). Pour les symboles gra

7、phiques, les symboles littraux et les signes dusage gnral approuvs par la CEI, le lecteur consultera la CE1 60027: Symboles littraux 2 utiliser en lectrotechnique, la CE1 6041 7: Symboles graphiques utilisables sur le matriel. Index, rele ve et compilation des feuilles individuelles, et la CE1 6061

8、7: Symboles graphiques pour schmas. * Voir adresse i resu!t a draft was The following countries voted explicitly in favour of publication of Part 3 Austria Belgium Canada Czechoslovakia Denmark Finland Germany Italy Japan Netherlands Norway Romania Sweden Switzerland Turkey Union of Soviet Socialist

9、 Republics United Kingdom United States of America -3- MESURES DES CARACTRISTIQUES LECTRIQUES DES TUBES LECTRONIQUES 3me partie: Mesure des admittances quivalentes dentre et de sortie i. Domaine dapplication Ce document indique les conditions respecter pour mesurer les admittances dentre et de sorti

10、e. II ne contient pas de mthode de mesure. Ces conditions comprennent : a) La dfinition des admittances mesurer; b) Les conditions de mesure; c) Les dtails dun adaptateur normalis, et du blindage. Actuellement, ceci sapplique aux tubes ayant les embases suivantes : Miniature 7 broches, Miniature 9 b

11、roches, B8A/Rimlock, Publication 67 de la C.E.I., feuille 67-I-loa Publication 67 de la C.E.I., feuille 67-I-12a Publication 67 de la C.E.I., feuilles 67-1-1 la et i lb Plan de - FIGURE 1 2. Dfinition des admittances Dans le cadre de ce document, ladmittance dentre (ou de sortie) est dfinie comme ta

12、nt ladmit- P est un point de contact sur la broche correspondant llectrode dentre (ou de sortie). I1 est situ une distance du sige de lembase comprise entre 2,5 mm et 3,5 mm (0,099 in - 0,137 in) (voir cote A sur la figure 1). tance mesure entre les points P et Q dfinis ci-dessous: Q est un point du

13、 plan de rfrence (voir paragraphe 4.1) situ directement au-dessous de la broche OU se trouve le point P (voir figure I). -?- MEASUREMENTS OF THE ELECTRICAL PROPERTIES OF ELECTRONIC TUBES AND VALVES Part 3 : Measurement of equivalent input and output admittances 1. Scope This document outlines condit

14、ions to be followed when measuring input and output admittances. These conditions include : u) Definitions of the admittances to be measured; b) Measuring conditions; c) Details of a standard adaptor and shielding. At present these apply to tubes and valves having the following bases: It does not in

15、clude measuring methods. Small button 7-pin miniature base, Small button nova1 9-pin base, B8A/Rimlock base, I.E.C. Publication 67, sheet 67-I-10a I.E.C. Publication 67, shczt 67-1-12a I.E.C. Publication 67, sheet 67-1-1 la, b FIGURE I 2. Definitions of admittances For the purpose of this document,

16、the input admittance (or the output admittance) is defined as the P is a point of contact on the pin connected to the input (or output) electrode. It is at a distance between 2.5 mm and 3.5 mm (0.099 in - 0.137 in) from the base seat of the tube or valve (See A of Figure 1). Q is a point on the refe

17、rence plane (see Sub-clause 4.1) directly beneath the pin on which P is located (See Figure I). admittance measured between the points P and Q as described below: -6- 3. Conditions de mesure 3.1 Tension iiaximale de mesure La tension de mesure doit tre telle que, lorsqu?on l?applique au circuit de m

18、esure, elle ne provoque pas de variation de plus de 1 % du courant cathodique du tube mesurer, et ne devra pas dpass-r 100 mV. 3.2 Sources de tensions d?e?lectrodes Les conditions de fonctionnement du tube doivent tre dfinies. 3.3 Frquence de mesure nominales suivantes : La frquence de mesure doit t

19、re maintenue 1% prs, et doit tre choisie parmi les valeurs 50 MHz, 100 MHz, 200 MHz Si des frquences suprieures s?avrent ncessaires, il est recommand que les valeurs nominales choisies soient 500 MHz ou 1 GHz. 3.4 Adaptateurs La mesure doit tre faite avec des adaptateurs dont les caractristiques ess

20、entielles sont donnes l?article 4. Ces adaptateurs relient les sorties du tube aux bornes de l?appareil de mesure et aux diverses sources de tensions d?lectrodes. 4. Caractristiques normalises de l?adaptateur et du blindage 4.1 Plan de rfrence Le plan de rfrence d?un adaptateur est la surface d?une

21、plaque mtallique, perpendiculaire l?axe du tube et se trouvant dans l?adaptateur. Ceci constitue une liaison conductrice entre les lments de circuit qui relient les ( autres broches D ce plan de rfrence. Le plan de rfrence sera situ une distance du sige de l?embase du tubv comprise entre 7,2 mm et 7

22、s mm (0,284 in et 0,307 in) (voir cote B sur la fiyre 1). 4.2 Impdance de dcouplage d?alimentation du tube doivent tre indpendantes du circuit de mesure haute frquence. de rfrence, afin de raliser une connexion en haute frquence sans contact mtallique. Aucun contact mtallique ne peut tre ralis entr

23、e les broches et le plan de rfrence car les tensions Un dcouplage radiofrquence doit tre dispos entre chacune des (autres broches ) et le plan L?impdance de ce dcouplage est appele : impdance de dcouplage. Les parties rsistives et ractives de l?impdance de dcouplage, la frquence de mesure utilise, d

24、oivent tre: R 0,3 ! x1 ! Note. - Ces valeurs sont limites pour viter une raction due l?impdance des connexions externes, en particulier de la 4.3 Admittance de transfert de l?adaptateur C?est l?admittance de transfert du quadriple situ entre : a) les bornes de mesure se trouvant la sortie de l?adapt

25、ateur et b) les points P et Q dfinis l?article 2. L?emploi d?un adaptateur introduit invitablement une erreur due son admittance de transfert qui est gnralement inductive. Pour tre certain que l?erreur est ngligeable, l?inductance causant cette admittance de transfert ne doit pas dpasser 1 nH. conne

26、xion de cathode. -7- 3. Measuring conditions 3. i Maximum measuring voltage The measuring voltage shall be such that, when applied to the measuring circuit, it shall not cause an alteration of mors than 1 % in the cathode current of the tube or valve to br measured and shall not exceed 100 mV. 3.2 E

27、lecirode supply voltages The operating conditions of the tube or valve shall be defined. 3.3 Measuring fr-equency nominal values : The measuring frequency shall be maintained within 1% and shall be chosen from the following 50 MHz (Mc/s), 100 MHz (Mc/s), 200 MHz (Mc/s) If higher frequencies are requ

28、ired, it is recommended that the nominal values chosen be either 500 MHz (Mc/s) or 1 GHz (Gc/s). 3.4 Adaptors The measurement shall be made with adaptors whose essential features are given in Clause 4. These adaptors link the terminals of the tube or valve with the measuring terminals and with the v

29、arious electrode supply voltages. 4. Details of standard adaptor and shielding 4.1 Reference plane and perpendicular to the tube axis. connect the “ other pins “ to this reference plane. or valve base seat (see B in Figure i). The reference plane of the adaptor is the surface of a metal plate mounte

30、d within the adaptor It provides a conductive path between circuit elements which The reference plane shall be brtween 7.2 mm and 7.8 mm (0.284 in and 0.307 in) from the tube 4.2 By-pass impedance to the tube or valve must be separated from the high-frequency measuring circuit. plane to provide a hi

31、gh-frequency connection without metallic contact. No metallic contact may be made between the pins and the reference plane as the supply voltages A radio-frequency by-pass must be placed between each of the “ other pins “ and the reference The impedance of this by-pass is called the “ by-pass impeda

32、nce “. The resistance and the reactive part of the by-pass impedance for the measuring frequency concerned shall be : R 0.3 il x1 i! Nok. -These values are limited in order to avoid feedback due to the impedance of the external leads, especially the 4.3 Transfer-admittance of the adaptor cathode lea

33、d. This is the transfer-admittance of the four-pole brtween : a) the measuring terminals available on the outside of the adaptor, and b) the points P and Q mentioned in Clause 2. The use of an adaptor inevitably results in an error due to its transfer-admittance which is usually inductive. In order to ensure that the error is negligible, the inductance causing the transfer-admittance should be kept below 1 nH.

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