Piezoelectricity energy harvesting system

PIEZO ELECTRIC ENERGY HARVESTING

SHOES

Piezoelectricity (also called the piezoelectric effect) is the appearance of a voltage across the sides of a crystal when you subject it to mechanical stress

What is a piezo?!

WORKING OF PEIZOS1.Normally, the charges in a piezoelectric crystal are exactly balanced, even if they're not symmetrically arranged.2.The effects of the charges exactly cancel out, leaving no net charge on the crystal faces. 3.If you squeeze the crystal , you force the charges out of balance.4.Now the effects of the charges (their dipole moments) no longer cancel one another out and net positive and negative charges appear on opposite crystal faces. By squeezing the crystal, you've produced a voltage across its opposite faces—and that's piezoelectricity!

PIEZO TRANSDUCER

WHY WE

USED A PIEZO?

Unaffected by external electromagnetic fields.

Pollution Free

Low Maintenance

Easy replacement of equipment.

CONCLUSION Piezoelectricity is a revolutionary source

for “GREEN ENERGY”. Flexible piezoelectric materials are

attractive for power harvesting applications because of their ability to withstand large amounts of strain.

Convert the ambient vibration energy surrounding them into electrical energy.

Electrical energy can then be used to power other devices or stored for later use.

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