Piezoelecticity - Amount of electricity produced

AI Thread Summary
To estimate the electricity generated by piezoelectric materials, one must consider the surface area subjected to stress and the specific material parameters. Calculating the voltage produced involves understanding the relationship between applied pressure and the material's properties. It's important to note that piezoelectric materials typically generate a transient voltage rather than a steady current. For accurate calculations, researching the specific piezoelectric material's characteristics is essential. This information will aid in preparing a detailed presentation for the contest.
sudarshanaa
Messages
1
Reaction score
0
Hello,

I have an idea to generate electricity using piezoelectric material. I entered this in a contest and my idea got selected. Now I have to prepare a detailed presentation of the idea for which I need to figure out approximately/roughly how much electricity will be produced. I am a layman who does not have much formal education. Can someone please guide me as to how do I got about calculating the amount of electricity produced if I know the extent of surface area which will be stressed. Is there any formula that I can use. Any pointers will be very helpful. Thanks in advance.
 
Physics news on Phys.org
If by "generating electricity" you mean a current flowing steadily through a circuit you may be disappointed. I hope you don't mean this.

You can easily calculate the voltage across the piezoelectric material as a function of the pressure applied. You should look up the material parameters for the specific piezoelectric.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'
So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
Back
Top