Features and Working of Piezo Sounder and Buzzer

The bending vibrations of the metal-plate on piezoelectric element produce sound. Piezoelectric buzzer is preferred for many industrial and domestic applications due to its low power consumption and other convenient features. This small sized lightweight component used through non-contact structure for a safe and spark-free production. The manufacturers got easier options to mount it on the printed circuit boards. Most of the modern manufacturers of piezo disc are also focusing on thin film manufacturing and ceramic processing.

Features:

The selected piezoelectric elements, with improved sound producing capabilities, are being used for meeting louder sound volume plus wide frequency range requirements. To get better performance, the manufacturers consider high quality piezo ceramic materials for buzzers. Piezo sounder components are being able to produce clear as well as pleasant electronic tone. Different types of piezo elements are being available by the quality manufacturers for making buzzer products.

Structure of Piezoelectric Buzzer Products:

The makeup of piezo sounder, buzzers, and diaphragms vary accordingly their varied functions. Both in sounders and diaphragms external or self drive assembly technology can be considered. The four prime elements of a diaphragm include electrode, ceramic disc, adhesive, and the metal plate made of brass or stainless steel. The sounder itself is constructed with diaphragm with casing and lead wire. The buzzer has casing, a pot-type diaphragm, circuit board, and the lead wire.

Working:

When the required voltage charged trough the lead wire, the piezoelectric element contracts and expands frequently. This rapid movement or vibration of the elastic disk generates sound waves. Through external-drive oscillation technique, the sound generated easily at any frequency using the non-stable multi-vibrator. Through self-drive oscillation, louder sound output is possible.

Casings with a resonator are used to place the piezoelectric diaphragms for getting needed sound output. The diaphragms those have piezo disc supported inside the casing in two techniques as peripheral or nodal-circular support. Also those are assembled by silicone agent.

The continuous advancements of this technology really made it expedient for many complex applications. The manufacturers of these products are using latest technologies to produce high quality products.

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Glorious Components is a manufacturing unit of industrial acoustic components in Mainland China. We produce wide range of acoustic products for various industrial applications. Our engineers and workmen are highly experienced and have detailed knowle