Piezoelectricity Definition and 22 Threads

TL;DR Summary: Tasked to formulate an equation relating piezoelectric effect and seismic waves during earthquakes. Using magnitude and distance attenuation to calculate stress/strain on the piezo system from earthquake energy. Need help checking if the basis and idea are correct

Hi! As I outlined in my https://www.physicsforums.com/threads/hello-reality-anyone-familiar-with-the-davisson-germer-experiment.985063/post-6305937, I'm curious to ask if there is anyone with knowledge on the theory of the piezoelectric effect on this forum? I think it's fascinating how a...

Let's say that I deform some piezoelectric tile and the energy(Fs here) is stored in form of some stress energy and some electrical energy(distribution of the centres of charges looking as a capacitor). Now I remove the force and then remove the electrical energy somehow so by the inverse piezo...

Hello all; Just thought I'd throw a brainstorming question to all you smart guys out there about a subject I know only from the youtube videos I've just come across. Large scale electricity generation from piezoelectricity. I'm aware that this technology is used mostly on a small scale...

Hi all , I am approaching now the piezoelectricity but I am studying economics so i have no knowledge to understand deeply some aspects of it. Anyway i am really interested in understanding it for myself. I understood all mechanism behind it but some things are still not clear. Let's start...

I was told that "piezoelectric materials can become more efficient if they were made to reduce their elasticity (the ones such as PVDF films that are flexiable).This is because the external energy is used to force the film back to its original shape just like when a spring is squashed; so most...

hey can a piezo crystal generate current when it is hit as well as when it is exposed to sound?

Hey My question relates to piezo cable under saddle pickup for accoustic guitars. They change the guitar's sound into electrical energy. They work almost like a microphone. But these cables are bendable, would that mean bending them can cause an electrical impulse along Becasue they are up of...

Hi Where can I buy Piezoelectric sheets? Similar to the one shown in the picture. Thanks

Would it be possible to put piezoelectric devices on the front of a car so that when the car is moving forward, the pressure from the wind on the car and piezo devices produces power to charge a battery? If the wind is strong enough, do you think there would be a considerable amount of energy...

it is possible to build a device that can create an electrical current that can be felt on the skin from a mild pressure by the hand?, dose piezoelectric materials can create enough electricity from friction like rubing them with the hand?. don't ask for what it is, i just want to know

Hello everyone, I am running a physics class next week where I want to show to high school children the power of piezoelectricity. I want to let them see with their own eyes that if a crystal is squeezed the differential potential between two opposite faces will change accordingly to the...

I am starting my 3rd year in September and I've decided to start thinking about research topics early. I'm quite interested in piezoelectricity along with it's discovered and perhaps undiscovered applications. This is my first idea; I have watched a lot of nature programs and I have seen that...

Hi, I am doing my Extended Essay in Physics(so yeah, I am doing the IB). I am really interested in taking up electrical engineering at university, and so, I had done an EE in piezoelectricity. I have taken the crystal from a barbecue lighter and connected it to a vernier( a machine that can...

Friends, A doubt in piezoelectricity. I heard that when pressure is applied in a quartz crystals(or other similar items), a high voltage is produced and this is called piezoelectricity. My question is, is it necessary a pressure cycle should go on? i.e. first a high pressure, then low, then...

My apologies in advance for ignorant questions. Are there any nanomaterials that exhibit piezoelectric properties ? Can they be engineered to take energy from surface waves at interfacial boundries ? I only ask after seeing the recent article on piezielectric vibration " harvesters " on the...

I was reading the wiki article on Piezoelectricity and this effect is either really odd or I'm missing something obvious here (I know wikipedia is not the best source but I'm feeling lazy). The article states that a Piezoelectric material will produce a voltage in response to mechanical stress...

Hello everyone. I'm an industrial designer based in New York City and I'm interested in harvesting human energy for my next design endeavor. I'm primarily doing research in Piezoelectricity and its applications in the small electronics industry i.e. cell phones, mp3s. I'm trying to design a...

Hi all, I am trying to measure the piezoelectricity of a polymer film using a picoammeter. Right now I am trying to figure out the best way to make the connection to the film without sputtering electrodes onto it. I figure copper adhesive tape or silver paste might be the best way to go but...

I'm doing a presentation on the physical properties of quartz for my Physics a-level and mostly on its piezoelectric properties but I am having trouble finding out exactly it produces a charge when a force is applied upon it. Any help anyone could give me would be greatly appreciated, also any...

We know quartz,viz. crystal silicon oxide is a kind of piezoelectric solid.Does the amorphous silicon oxide present piezoelectricity also. If not,Why? -------------------------------------------------------------------------- I'm not good at English, so if there is any language errors in my...

Piezoelectric Crystal Vibrates When Subjected To An Electric Pulse , Now I Wonder If Putting Stress On A Piezoelctric Crystal Would Yeild An Electric Pulse ?? And If That Is So, Are There Any Machines Based On This Theory ?and If There Are ,how Efficient Are They ??