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Area Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection / Materials for dielectric devices

IEV ref561-06-06

Symbol
Q0

en
quality factor of a material
reciprocal of the tangent of the loss angle

Q 0 = ε / ε =1/tanδ MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbbjxAHXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeqabiGaciGacaqadmaadaqaaqaaaOqaaiaadgfadaWgaaWcbaGaaGimaaqabaGccqGH9aqpcuaH1oqzgaqbaiaac+cacuaH1oqzgaGbaiabg2da9iaaigdacaGGVaGaciiDaiaacggacaGGUbGaeqiTdqgaaa@431C@

Note 1 to entry: The quality factor of a material is also defined as 2π times the ratio of the stored electromagnetic energy to the energy dissipated in the material per cycle. It is frequency dependent.


fr
facteur de qualité d’un matériau, m
réciproque de la tangente de l’angle de pertes

Q 0 = ε / ε =1/tanδ MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbbjxAHXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeqabiGaciGacaqadmaadaqaaqaaaOqaaiaadgfadaWgaaWcbaGaaGimaaqabaGccqGH9aqpcuaH1oqzgaqbaiaac+cacuaH1oqzgaGbaiabg2da9iaaigdacaGGVaGaciiDaiaacggacaGGUbGaeqiTdqgaaa@431C@

Note 1 à l’article: Le facteur de qualité d’un matériau est également défini par 2π fois le rapport entre l’énergie électromagnétique emmagasinée et l’énergie dissipée dans le matériau par cycle. Il dépend de la fréquence.


ar
معامل الجودة لمادة

de
Gütefaktor eines Materials, m

es
factor de calidad de un material

it
fattore di qualità di un materiale

ko
물질 선택도

ja
材料Q

pl
współczynnik dobroci materiału, m

pt
fator de qualidade de um material

zh
材料的品质因数

Publication date: 2014-11
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