Hi! I am a sophomore in high school, and this year I plan to do my science fair project on piezoelectric. I am in honors chemistry, and I want to create piezoelectric crystals, and measure the amount of energy given when pressure is applied. I want to use different types of crystals that I can preferably create myself. Then, I would like to possibly light a small LED.
I know that I can make one type of crystal by using Rochelle salt. Does anyone know of any others, preferably ones that can be made at home?
Also, what is the type of meter I need to get to measure the very small amount of charge that is given off by the crystals. Can I pick one up at my local hardware store, and how much will I have to cough up? The same goes for what ingredients I need for my crystals?
Thanks a lot in advance. I look forward to reading your answers. Please feel free to e-mail me if you need more information, or if I am not coherent enough. Once again, thanks!
2007-10-15 13:46:00 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
You can't make quartz at home, but you could start with a natural hunk of quartz. You might be able to make some ceramics. You could buy a flameless match/igniter and experiment with that.
The best way to measure the output would be to connect it to a purely resistive load and look at the waveform on an oscilloscope. Perhaps you can borrow one. Cheaper would be charging a capacitor through a resistor and a full wave bridge rectifier, then measuring the change in capacitor voltage with a voltmeter. You can get a simple, cheap voltmeter at any electronics store, even Radio Shack.
Do some measurements and calculations before you try the LED. Otherwise, you are more likely to destroy it than to light it.
2007-10-16 12:32:04 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
A crystal is a variety that a mineral can take. So any particular crystal is made out of that distinctive mineral. for occasion a salt crystal is sodium chloride, a diamond is carbon, quartz is despite the fact that quartz is made out of, silica i think of. Yeah, it rather is silicon dioxide.
2016-12-29 12:08:29 · answer #2 · answered by fraccola 3 · 0⤊ 0⤋
how you can made the crystal using Rochelle salt..???
plz e-mail to eee.zibran@yahoo.in
2013-09-29 21:33:37 · answer #3 · answered by Zibran 1 · 0⤊ 0⤋