Piezoelectric Alarm

The piezoelectric effect was founded by Pierre Curie in collaboration with Jacques Curie in 1880. These two French physicists are brothers who have discovered that electricity can be generated by piezoelectric materials, but it was Gabriel Lippmann who discovered that electricity can actually distort the material. Although these exciting discoveries, but the breakthrough was not until the early twentieth century materials such as topaz, Rochelle salt, quartz, sugar cane and the bone is known to have this effect in them .

The piezoelectric effect happens when the load balance in the crystal lattice of certain materials has been distracted. When stress is applied to the material, the positive and negative charges of the material will be distributed evenly throughout. Thus, there is no difference between the two possible charges. The balance will be responsible for creating a difference when there are slight changes in the network. It may be the highest several thousand volts. On the other hand, the power is low and can cause a mild electric shock. The inverse piezoelectric effect occurs only when the electrical current creates an electrostatic field which causes the atoms in the material to shake a little.

A tiny piezoelectric crystal can support a sufficient voltage is capable of creating a spark which is sufficient to ignite the gas. gas appliances such as grills, water heaters, furnaces and heaters make use of these rooms igniters. In addition, the piezoelectric crystals are mainly used for electronic watches and clocks where it is essential for the maintenance and time to produce the alarm sound. These include quartz clocks, and the crystal used is usually made from quartz. In this case, the quartz is relevant because it provides a natural frequency which is the ideal material to create oscillations maintain the correct time.