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Composition and advantages of piezoelectric diaphragm buzzer

Views:1     Author:Site Editor     Publish Time: 2019-07-11      Origin:Site

Composition of piezo ceramic elements
 
The piezoelectric diaphragm element is made of lead zirconate titanate or lead magnesium niobate piezoelectric ceramic material. Silver electrodes are plated on both sides of the ceramic sheet, and after polarization and aging treatment, they are adhered to the brass sheet or the stainless steel sheet. By using the principle of piezoelectric effect, when an alternating voltage is added, mechanical deformation stretching and contraction occur due to the piezoelectric effect, and this characteristic is used to vibrate the metal piece piezo ceramic bimorph buzzer to make a sound.
 

Advantages of the piezo element piezo diaphragm buzzer:

(1) Clear sound
(2) Ultra-thin and light weight
(3) No contact. No noise. Highly reliable
(4) Low power consumption
(5) Low voltage and large displacement
(6) Fast response

(7) High conversion efficiency
(8) No electromagnetic interference
(9) Wide operating temperature range

Because piezo sounder ceramic elements have the above advantages, they are widely used in electronic watches, calculators, electronic doorbells and electronic toys.


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