The vibration principle of the buzzer

- Apr 10, 2018 -

The buzzer is made up of two parts: the instrument rack and the exciter. The vibration of the instrument rack is driven by the vibration of the exciter product. The shape of the instrument rack varies with the structure of the tester and the vibrator. According to its structure, the exciter is divided into two types: straight iron core and iron core. Their vibration principle is based on the effect of electromagnetic. When the coil is connected to alternating current, in the half week of alternating current, the magnetic force line of the coil makes the core magnetized and attracts the magnet, resulting in the relative mechanical displacement. When the positive half cycle voltage drops to zero, the coil flux is zero. Soft complete demagnetization, and in situ recovery under the action of the spring.

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