piezoelectric crystals generate high voltage high school physics project ravish polarisation

[harsha639]

how much voltage does the piezo crystal generate???? i mean how much voltage is generatd for how much ofpressure????? does tat depends on size of crystal or anything else?

plzzz reply all d question

[raveeshakh]

the voltage pulse developed depends on the pressure exerted.it may be 500volts in the case of a gas lighter.yes it depends on the size.

[nicolasss82]

have some more curry

[19daredevill]

how can i convert this voltage into current , i mean something like a step down transformer, but what kind of a circuit would use this high voltage?

[raveeshakh]

See, you can use this high coltage to charge a capacitor.

[mistameanor420]

eh 1500v :P

Static electricity is supposed to START at around there, and if you and hear and see it, its around 10,000 volts or more

[SamIves85]

Is it rochelle salt inside?

What ever it is, would it be possible to create a farm of this stuff and somehow use nature to generate electricity?

[raveeshakh]

It could be ,I am not sure. Yes, if we are able to make an object vibrate using natural energy, electricity could be generated.

[SamIves85]

@raveeshakh How about making a layer of it underneath roads and/or paths? Even the motion of the sea could generate power surely? lol I'm sure the governments are well aware of this but they're too busy making money out of oil and other fossil fuels...

[venu1591]

please clarify me about the energy produced in ligther is heat or electric energy?

please replly soon as we are working on it as a project

thanks

[raveeshakh]

In the lighter, the mechanical energy is used to generate a high voltage pulse by the phenamenon of peizo electric effect.This voltage creates a spark.

[raveeshakh]

See, here a voltage pulse is produced.Its magnitude could be around 500volts.



[RobCardIV]

force being channeled very effeciently ? i guess?

[cheenusrinu001]

cant these power stored in a battery?...

[raveeshakh]

Yes that is an interesting question.Here, a pulse of duration few milli/micro seconds is generated.Probably,it can be used to charge a capacitor.

[cheenusrinu001]

@raveeshakh so when continous vibrations r given to that crystal.. how much power will be created...

[raveeshakh]

In such a case, continuous pulsal voltage is generated.The magnitude of the voltage pulse could vary upto 500volts with an ordinary gas lighter.

[cheenusrinu001]

@raveeshakh so.. with this huge voltage wat can we do now?,.... cant we generate power?...