When an electric field is applied to the two electrodes of a quartz crystal, the chip deforms mechanically. Conversely, when mechanical pressure is applied to both sides of the chip, an electric field is generated in the corresponding direction of the chip, a physical phenomenon known as piezoelectric effect. If an alternating voltage is applied to the poles of the chip, the chip will generate a mechanical vibration, which in turn will generate an alternating electric field. In general, the amplitude of the mechanical vibration of the chip and the amplitude of the alternating electric field are very small, but when the frequency of the applied alternating voltage is a certain value, the amplitude increases significantly, much larger than that of other frequencies. This phenomenon is called piezoelectric resonance, which is very similar to the resonance phenomenon of the LC loop. Its resonant frequency is related to the cutting mode, geometry and size of the chip.
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Piezoelectric effect of a quartz crystal resonator
Source： Time：2020-08-07 14:53:41 views：
When an electric field is applied to the two electrodes of a quartz crystal, the chip deforms mechanically. Conversely, when mechanical pressure is applied to both sides of the chip, an electric field is generated in the corresponding direction of the chip, a physical phenomenon known as piezoelectric effect.
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