#magnetic buzzer

[mpcomagnetics]

Piezo and Magnetic Buzzers

Piezo and Magnetic Buzzers

Piezo and Magnetic Buzzers Buzzers are among the most versatile sound components available today. Add the fact that they are low cost, high quality devices and it’s easy to see why they are being designed in by everyone as the goto audible notification device in phones, cars, kitchen appliances and everything in between. There are a number of buzzer options available for different applications,…

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[apm-tec-sound-de]

Essential Piezo Buzzer for Sound System

Technology has taken the world by storm and today no industry is spared from its effects. With acoustics the scenario is same. Giving tough competition to companies in the domain is APM-TEC Sound, which not only is a genuine service provider but also is cost effective in functionality as well. Quality above quantity is the sole aim of the company that delivers an unmatched specialization in manufacturing high-end acoustic components ideal to be incorporated in every other kind of industry. A typical Piezo Buzzer is an essential component of sound system that founds applications in alarm devices, timers etc. At APM-TEC every manufactured component is critically tested before delivery so as to ensure flawless performance and stability.

 For more information visit our website: https://www.apm-tec-sound.de/

[hexiang888-blog]

China magnetic buzzer

We know that, when only one beam is applied to the tympanic membrane, can not hear any micro speaker. Ultrasonic speed strong, directional control, the intersection of the two beams can point to form a very small range also sound area, you can hear the sound when the human ear in this region, while the human ear leave the area will not magnetic buzzer.

Advantage of this feature, some of the top luxury car equipped with multiple sets of ultrasonic also loud speaker system in every seat on the formation of a listening area, which would allow each passenger to enjoy content like each other piezo buzzer without produce any interference, but also does not affect passenger conversation.

[hexiang888-blog]

Ultrasonic speaker works

Ultrasonic sound reproduction technology developed just a few years ago called ultrasonic micro speaker, success, are entering the practical stage.

Technical principles of this ultrasonic sound reproduction: it does not use any conventional form of the loud speaker unit, but the use of an ultrasonic generator to produce the two beams of the ultrasonic beam after special treatment, when the two beams at the same time acting on the piezo buzzer membrane of the human ear. generated due to the interaction of the hearing.

[hexiang888-blog]

Horn sounding

1, moving coil inductor.The basic principle from Fleming's left hand rule, a current conductor and perpendicular to the magnetic field lines into the north and south poles of the magnetic buzzer, said the line will be affected by the interaction of the magnetic field lines and current both move in to a diaphragm attached to thisthe root bead line, along with the current variation diaphragm generated before and after the movement. At present, more than 90 percent of the cone monomer are moving coil designs.

2, electromagnetic. Cut movable iron piece (armature) erected in the middle of a U-shaped magnet, when the current flowing through the coil when the armature will be affected by the magnetization and the magnet generated suction repellent phenomenon, and simultaneously driven by the diaphragm movement. This design is cost ineffective, so multi-purpose telephone tube with small headphones.

3, inductive. With similar electromagnetic principle, however armature doubles and two voice coil magnet and asymmetric for different magnetic flux when the signal current is passed through two armature pushing each movement. The electromagnetic is different is the inductance can be regenerated lower frequency, but the efficiency is very low.