Piezoelectricity

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Offline Elshan M

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Piezoelectricity
« on: 06/08/2012 11:20:24 »
Piezoelectricity effect generated by compression of certain materials. Due to compaction crystalline material releases electrical current.

Is there any relationship, dependence between the quantity of electrical charge or current and stress applied to crystalline?

I understand that piezoelectricity is the property of some materials. But there should be measure of amount of charge because of pressure applied to material. For example in all compaction pressures quartz mineral generates certain amount of charge or it depends and changes. Which of them is true?