Piezoelectric Definition and 130 Threads

Hi! I'm trying to find a way to use piezoelectric materials, and put them under floors or roads so that people's footsteps or a cars wheel will apply pressure on them, therefore creating an electric current. I need to find the materials to create a small square of piezoelectric flooring...

i want to generate electricity from piezoelectric load cell by application of load on it, but i don't know which type of cell to use and from where to get it? i want good efficiency, please help me out.

Is it possible to use a piezoelectric transformer to step up voltages of 3 to 12 volts to as much as 5 kilovolts? Below are more details of what I would like to do: Input into transformer: square waves, 0 to 12-volt amplitude with frequency range of 100 Hz to 100 KHz Output from transformer...

Ok. I know this may sound like a stupid question but for the life of me i can't find definitions for these terms. I am working on developing a PVDF polymer based piezoelectric film and need to know what the terms Uniaxial and biaxial mean. I am using an electrospining method to make the fibers...

Recently I have learned of the Piezoelectric effect. I have seen several videos where people have made small generators using this effect. Can anyone give me step-by-step inscutions o point me in the right direction?

Hi, I am not very good at electronic circuit,, I just want to ask: How to amplify voltage signal resulted by piezoelectric? Since the voltage resulted by this material is very small,, thank you for any help

I bought an old cup warmer from a thrift store that uses a piezoelectric plate and was wondering if I could reverse it somehow to generate electricity from heat. This doesn't need to be practical, I just wanted to know if it would generate a few mV on my multimeter. I got the idea from...

Hi,i'm working on project called active vibration control using piezoelectric patches through ANSYS. But I'm finding difficulties in piezoelectric analysis(application of voltage and stimulation part). Hoping someone would have solved it ,please guide me its very urgent. thanking you

Hello Everyone, Thank you for the help! I'm trying to better understand the reverse piezoelectric effect. More specifically what the reaction of the material would be with an applied energy. Is there deformation or just vibration? Is it controllable? Is it repeatable? Does it diminish over...

I was going through few books and i found out that piezoelectric concept generates good amount of current but not enough power(wattage) ... As I was thinking of making a project on this concept can somebody tell me how can huge amount of voltage as well as current be generated from piezoelectric...

I am looking for a polymer that can be manipulated and that expands after applying pressure between the fingers, as a result of piezoelectric effect.

I am undertaking a project to design a piezoelectric ramp (small scale model) to generate power when force is exerted upon it. The project is simply proof of concept but in principle I thought a piezoelectric ceramic (PZT) aligned vertically with a hinged ramp exerting the force on the...

Hey All, This is a question I have faced many times, but I never fully grasp the difference. All ferroelectrics are piezoelectric, but not all piezoelectrics are ferroelectric... I understand that ferroeletrics are due to their noncentrosymetric crystal structure and they can therefore...

Hi, Would somebody know if it is possible to bond pvdf piezoelectric material on glasse or teflon without making it losing its piezoelectric properties? Thank you! Damien

I'm wanting to do some experiments with creating electricity from piezoelectric materials but I'm not sure where I can buy some. I'm looking for some materials that are easily bendable like paper and preferably cheap as I have several experiments I'd like to try. If anyone knows a good...

Hey guys im in the process of designing a piezoelectric liquid pump, i am looking to make the structure out of RP printer for now and use a PDMS diagrphram for the piezo device to be mounted apon. Have any of you guys worked with piezo materials before as i am in need of a strong high...

Hey I am looking for an example problems that have piezoelectrics generating electricity. I would like to have and use a simple problem in which a piezoelectric is squeezed to generate electricity. Does anyone know where I can find such problems and solutions?

Hi, I was asked to find the relationship of output voltage of a piezoelectric film or a beam with known dimensions when it is subjected to a known frequency vibration. I appreciate if someone can help me with that. Thanks,

Hi, I'm trying to model the frequency response of a thin PZT disc using COMSOL, but I am not sure how to calculate the impedance Z vs frequency. I defined the current density at the top electrode as I=-imag(nJ_smpz3d) and then plotted V/I using the domain plot parameters in the postproc menu...

Hi My project involves rectification of a voltage produced by a piezoelectric stack subjected to an impact. The voltage shall be rectified using a full wave bridge rectifier. I aim to use a capacitor (in position of the smoothing capacitor) to store the energy harvested from the impact...

I'm studying about piezoelectric material. The electro - mechanical property of this material can be described by the following constitutive equation: Sij is the compliance matrix, and dmi is the piezoelectric constant for the materials The matrix form of the equation: Applying...

I'm learning piezoelectricity right now and got an equation I can't understand. It writes the Newton's sencond law for the stresses in materials due to elastic and piezoelectric contribution. The equation is in the attachment. In this equation I'd like to ask what is the partial derivative...

Hi I have a question about piezoelectric actuators. I'm not an engineer and have no experience with actuators, but in looking over the first item in the data sheet http://motion-controls.globalspec.com/SpecSearch/ProductSpecs?Comp=3083&VID=96478" , I see that the maximum displacement is 5 µm...

does anyone work with piezoelectric ceramics or polymers i need to know so real world numbers that i just can't seem to find i think this is due to the fact that i have no real clue as to what i am doing but i would like to 1 a base line number for efficiency as in one kilogram of...

I was reading about the piezoelectric effect in ultrasound and I am not sure how it works. Do you apply a voltage to the quartz crystal to achieve an alternating electric field or mechanical stress to the crystal? How does applying stress to the crystal create an alternating electric field?

Hello. I am currently working on a project to build a prototype concerning the topic of energy. My group has brought up the idea of developing a floor system made of piezoelectric materials with sensors to generate electricity for houses. I have been searching earnestly to find information...

If we made a very large Gong and coated it with Piezoelectric Crystals would the Gongs frequency when struck be sufficient to stress the Piezoelectric properties into giving up electrons to discharge an electric spark? If so, Would making the Gong from LiquidMetal lengthen the time the Gong...

Hi, I am aware that in the traditional sense Piezoelectric crystals/ceramics cannot be used to measure static/steady state forces. However, I was wondering how low their frequency response can go. That is, is it possible to measure a force of maximum strength 1mN that will develop...

I am interested in finding out some details concerning vibrations of quartz as it is used in quartz watches. How can I calculate the amount of vibration for a specific size of quartz crystal when an electrical charge is applied? Example: For a 1 cm cubic crystal of quartz, how fast would the...

"Hillbilly Tutorial" on Piezoelectric effect? What exactly is it about certain crystals like quartz, Rochelle salt, and certain ceramic materials, that causes the piezoelectric effect? How can just bending something produce a charge? How can putting a charge across it cause it to bend...