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1answer
109 views

Vortex shedding

So I was reading about vortex shedding, and got to know that it causes the building to resonate. Is there any way to use this resonance to generate electricity (maybe use quartz?) I am trying to make ...
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1answer
20 views

Electrical charge equilibrium and the piezoelectric effect

About the piezoelectric effect: if I press a crystal the electrical charges segregate and an electrical voltage appears on the other two faces of the crystal. See this link for example: ...
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0answers
45 views

pressure required for displacing a single electron off a crystal

I need to know this for my project- "power generation using the pressure applied on a keypad of a mobile electronic device". How much pressure does it take to displace a single electron off its ...
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0answers
12 views

Piezo transducer face movement

I have an ultrasonic piezo transducer that I am running with a 60Vpp signal. The material is probably PZT or similar. Can anyone supply a ballpark figure for the likely peak to peak mechanical ...
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0answers
20 views

piezoelectric in quartz

Does any one know if it is possible to find the relation between the ac current frequency applied to a piezoelectric and the change in the crystal lattice due to this current BY USE OF HAMILTONIAN (in ...
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0answers
11 views

Transient Stress and Piezoelectric Generators

From what I can gather, the piezoelectric effect links mechanical stress to the potential difference across a material, with a two-way relationship between the two (motor or generator). I don't know ...
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0answers
21 views

Deformation of piezoelectrics

I am having difficulty finding a good explanation of how potential difference and deformation of a piezoelectric relate. Is there a fixed axis along which the piezoelectric crystal will respond to ...