Piezoelectric Sensors Usage

1- sensors are for "sensing" as their name indicates so that they are not power generators.

2- power is the product of voltage AND current. Piezoelectric components are load generators so that the possible current which electric load/time is small although voltages can be high.

3- such piezoelectric "generators" are used currently in spark generators for gas burners (small or big) for example where the energy can be small but it is necessary to generate a small volume with high temperature for 1st ignition of the mixture gas+air.

Maybe we could cover the roadway with piezo film and generate power as vehicles pass over it.

Good to see you back nick name.

Some company in Israel is trying to hustle this roadway concept I believe.

Thank you for the friendly comment!

Nick

lots of links here, generating power by walking in shoes in pavement slabs in clothes

http://cr4.globalspec.com/search/sitesearch?do=show&sort=textmatchrank&srch=piezoelectric&order=asc

http://www.google.co.uk/search?q=power+generation+using+piezeo+&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7GZEU_en&redir_esc=&ei=en16TP6rJ5a6jAfskJCgBg

I know the piezzo- electric effect is used in small motors already. Called piezzo motor.

I forgot to mention an experimental street lights supply in the down town of Toulouse (France) with piezoplates there where people walk. It work since several months and apparently without troubles. If experiment runs well it will be extended.

It is already in depelopment stage:I think you could see of this stuff (tranformers,generators,etc.) looking pages of companies like Ceramtec,or PI group,specially its headquarters in Germany page with a "PIEZO-UNIVERSITY".Good luck!.-

Currently we are wasting energy when car pass some country like Israel and France are trying to generate power using Piezo on the road and side walk. This is possible to do but how economical it will be time will say. Road weathers with time and we put lot of salt in winter in the area we live and the effect of salt on piezo is not known but being a ceramist I can guess will destroy it.

This method will generate heat in area which is free of snow belt and salt and will minimize our dependence on middle east oil to generate power and will supplement like solar and wind

The general conclusion when I first saw this was that it was a scheme to separate suckers (investors) from their money.

Know Piezo electricity is just a conversion of one form of energy to another. We have used this technology to control valve motion to on and off. We have used for table vibration and limited people have done work on applying load and converting sudden load to power and is real.

Engineering college with electroceramic department with graduate courses will have this in there lab. Industry is pushing and some Khan man may wants to make money and disappear. This happened in Dotcom burst also and is weaving of the technology. Dotcom is now real.

I have no idea of conversion efficiency but will help to get some power to supplement current load on oil and gas turbines to make power. This is like solar and wind only difference is power is made by human activities and not depended on God providing wind or sunlight

I am aware of Piezo electricity - all generation of electricity is conversion of power from one form to another for that matter.

And a road surface is the best place to do it?

I really doubt it - on a massive scale it is an airy-fairy type of thing - at least at present.

I am with you till some one comes and develops manufacturing technology for this. In one of the limited success I have seen with superconductor which is very niche and only in defence have some use.

Technology moved to glass to draw fiber and then used it same as copper wire to make electrical motor and then glass was crystallized to superconductor wire.

If a creative brain comes up with wire of Piezo electric composition and weave cloth and then crystallize this to make grid to make power.

I am not expert in this area but can dream on this how to move to mas production. I may be all the way wrong but there is nothing wrong in dreaming

Agreed - there may be something to it in the future when people manage to get over a few technological hurdles.

Car shock absorbers seem a lot more likely though.