I am working on a project where I need to prove that Piezeo electric crystal can help us to generate electricity and can be applicable on streets.My question is that where can I find suitable transcendence or Piezeo electric energy generating unit.I would also like to know if such things are already implemented. I am also seeking for proper elements to make this things happen. Since I live in India the local markets are really poor having such sophisticated equipment. I would also like to know if I could order the parts online. All suggestions are welcomed.Thanks
Electronic – Sample application for generating energy from Piezeo Electric Crystal.
piezoelectricity
Related Solutions
If you can limit the load capacitance of the cable and amplifier, you can use the voltage model. This requires that no cable is involved as cables tend to add 20~30 pF/ft.
Otherwise the charge model must be used and a charge amplifier is required. This is how accelerometers work with cables from sensor to amp.
Yes, you can, however there is some change (call it creep or drift or relaxation) in the motion, logarithmically decreasing with time adding up to perhaps several perecent over hours. Here is the response to a 60\$\mu\text m\$ motion:
To get macroscopic motion from piezo elements there are a few techniques- such as stacking large number of elements, using mechanical amplification (as in benders) and "walking" or other motor techniques. The latter type of technique does not depend on the piezo to hold position so it will not have the same drift characteristic. Also it's common in high precision applications to close the loop with a feedback sensor.
Best Answer
Yes, existance proof of such devices are already available on the street.
Many ignitors work on the priciple of applying a mechanical shock to a piezo crystal, which then produces a high enough voltage to cause a spark. Look at things like barbecue ignitors.
There are also butane lighters with a long (6 inch maybe) stock. These aren't for cigarettes, but for lighting fires. They typically have a gun-like trigger. When squeezed it opens a valve for the butane to flow, and also activates a mechanical mechanism that slaps a piezo crystal. The high voltage is transferred by wire to the tip where it causes a spark and ignites the butane.
There are other methods used in these types of ignitors so you have to look carefully, but the piezo method is actually quite common nowadays.