This effect can also be strong, but the final displacement is only a few nanometers.
Piezoelectric crystals also work in this way in reverse: by directing an electric or electromagnetic voltage onto a piezoelectric crystal, the same distortion is induced. With a gaslighter, a hammer strikes the crystal using spring tension. It can vary from millivolts – as in the case of sound vibrations from microphones and the needle of a record player, to many thousands of volts in the case of gas lighters. The generated voltage depends on the magnitude of the mechanical energy applied. Due to this asymmetry, an electric voltage is generated. External pressure distorts the crystal and breaks the symmetry of the unit cell. In a piezoelectric crystal, the positive and negative electrical charges are separated. In addition, these crystals are used in watches, ultrasonic devices, microphones, cigarette lighters, inkjet printers, speakers, and a wide variety of sensors.
Perhaps the best-known item is the ignition of the gas stove. The piezoelectric crystal is used in various everyday consumer and industrial products. There are both natural and synthetic materials with this potential. Piezoelectric crystals can produce a piezoelectric effect, which means that they can generate an electric charge when exposed to pressure. Meditation and the piezoelectric effect.Piezoelectric crystals in the pineal gland.
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