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Area Circuit theory / Circuit elements and their characteristics

IEV ref131-12-43

Symbol
Z _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadQfaaaaaaa@3A7E@

en
impedance
complex impedance
for a passive linear two-terminal element or two-terminal circuit with terminals A and B under sinusoidal conditions, quotient of the phasor U _ AB MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadwfaaaWaaSbaaSqaaiGacgeacaGGcbaabeaaaaa@3C32@ representing the voltage (131-11-56) between the terminals by the phasor I _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadMeaaaaaaa@3A6D@ representing the electric current in the element or circuit

Z _ = U _ AB I _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadQfaaaGaeyypa0ZaaSaaaeaadaadaaqaaiaadwfa aaWaaSbaaSqaaiaacgeacaGGcbaabeaaaOqaamaamaaabaGaamysaa aaaaaaaa@3F1D@

where the sinusoidal voltage u AB = v A v B MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aacaWG1bWaaSbaaSqaaKqzGdGaaiyqaiaackeaaSqabaGccqGH9aqp ruGqV92AGeKB0LwC1fgaiyGacaWF2bWaaSbaaSqaaKqzGdGaaiyqaa WcbeaakiabgkHiTiaa=zhadaWgaaWcbaqcLboacaGGcbaaleqaaaaa @4AC7@ represented by the phasor U _ AB MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadwfaaaWaaSbaaSqaaiGacgeacaGGcbaabeaaaaa@3C32@ is the difference of the electric potentials v A MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aaruGqV92AGeKB0LwC1fgaiyGacaWF2bWaaSbaaSqaaKqzGdGaaiyq aaWcbeaaaaa@4174@ at A and v B MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aaruGqV92AGeKB0LwC1fgaiyGacaWF2bWaaSbaaSqaaKqzGdGaaiyq aaWcbeaaaaa@4174@ at B, and where the sinusoidal electric current represented by the phasor I _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadMeaaaaaaa@3A6D@ is taken positive if its direction is from A to B and negative if its direction is from B to A

Note 1 to entry: The impedance of an element or circuit is the inverse of its admittance. It is equal to Z _ =R+jX=Z e jφ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaKqzGeGaamOwaaaacqGH9aqpcaWGsbGaey4kaSscLbqa ciGGQbqcLbsacaWGybGaeyypa0JaamOwaiGacwgakmaaCaaajugibe qabaqcLbmaciGGQbqcLboacqaHvpGzaaaaaa@4956@ , where R is resistance to alternating current, X is reactance, Z is apparent impedance, and φ is displacement angle.

Note 2 to entry: With a suitable qualifier, the word impedance is used to form composite terms designating quantities of the same kind as impedance, e.g.: transfer impedance, characteristic impedance.

Note 3 to entry: The coherent SI unit of impedance is ohm, Ω.


fr
impédance, f
impédance complexe, f
pour un bipôle linéaire passif, élémentaire ou non, de bornes A et B, en régime sinusoïdal, quotient du phaseur U _ AB MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadwfaaaWaaSbaaSqaaiGacgeacaGGcbaabeaaaaa@3C32@ représentant la tension électrique (131-11-56) entre les bornes par le phaseur I _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadMeaaaaaaa@3A6D@ représentant le courant électrique dans le bipôle

Z _ = U _ AB I _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadQfaaaGaeyypa0ZaaSaaaeaadaadaaqaaiaadwfa aaWaaSbaaSqaaiaacgeacaGGcbaabeaaaOqaamaamaaabaGaamysaa aaaaaaaa@3F1D@

où la tension sinusoïdale u AB = v A v B MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aacaWG1bWaaSbaaSqaaKqzGdGaaiyqaiaackeaaSqabaGccqGH9aqp ruGqV92AGeKB0LwC1fgaiyGacaWF2bWaaSbaaSqaaKqzGdGaaiyqaa WcbeaakiabgkHiTiaa=zhadaWgaaWcbaqcLboacaGGcbaaleqaaaaa @4AC7@ représentée par le phaseur U _ AB MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadwfaaaWaaSbaaSqaaiGacgeacaGGcbaabeaaaaa@3C32@ est la différence des potentiels électriques v A MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aaruGqV92AGeKB0LwC1fgaiyGacaWF2bWaaSbaaSqaaKqzGdGaaiyq aaWcbeaaaaa@4174@ en A et v B MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aaruGqV92AGeKB0LwC1fgaiyGacaWF2bWaaSbaaSqaaKqzGdGaaiyq aaWcbeaaaaa@4174@ en B, et où le courant sinusoïdal représenté par le phaseur I _ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaiaadMeaaaaaaa@3A6D@ est positif si son sens est de A vers B et négatif si son sens est de B vers A

Note 1 à l’article: L’impédance d'un bipôle est l’inverse de son admittance. Elle est égale à Z _ =R+jX=Z e jφ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aadaadaaqaaKqzGeGaamOwaaaacqGH9aqpcaWGsbGaey4kaSscLbqa ciGGQbqcLbsacaWGybGaeyypa0JaamOwaiGacwgakmaaCaaajugibe qabaqcLbmaciGGQbqcLboacqaHvpGzaaaaaa@4956@ , où R est la résistance en courant alternatif, X est la réactance, Z est l’impédance apparente et φ est le déphasage tension-courant.

Note 2 à l’article: Avec un qualificatif convenable, le mot impédance est utilisé pour former des termes composés désignant des grandeurs de même nature qu’une impédance, par exemple: impédance de transfert, impédance caractéristique.

Note 3 à l’article: L’unité SI cohérente d’impédance est l’ohm, Ω.


ar
المعاوقة
المعاوقة المركبة

de
Impedanz, f
komplexe Impedanz, f

es
impedancia
impedancia compleja

it
impedenza
impedenza complessa

ja
インピーダンス
複素インピーダンス

pl
impedancja
impedancja zespolona

pt
impedância
impedância complexa

zh
阻抗
复阻抗

Publication date: 2013-08
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