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How do pyroelectric crystals work?

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At first, Pyroelectricity is equal to Thermoelectricity but not vice versa. Pyroelectric crystals are the materials which when heated, the atomic structure(crystal lattice) changes. read more

In most crystals (such as metals), the unit cell (the basic repeating unit) is symmetrical; in piezoelectric crystals, it isn't. Normally, piezoelectric crystals are electrically neutral: the atoms inside them may not be symmetrically arranged, but their electrical charges are perfectly balanced: a positive charge in one place cancels out a negative charge nearby. read more

Pyroelectric crystals are the materials which when heated, the atomic structure(crystal lattice) changes.Thus, they exhibit a potential difference at both ends of the material. {(The whole crystal is changed from one temperature to another, and the result is a temporary voltage across the crystal. read more

A crystal of quartz will vibrate at a certain rate, depending on its size. As the crystal vibrates back and forth, it generates electrical pulses. A quartz clock uses a small crystal cut to a precise size to keep time. A circuit called an oscillator keeps the quartz crystal vibrating by adding electricity to its pulses. read more

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