[product name]: buzzer

[model]: Phi 12, Phi 15, Phi 18, Phi 20, Phi 27, phi 29, Phi 31, Phi 35

[size]:

[material]: iron copper

[color]:

buzzer is the use of piezoelectric effect principle, when applied to the alternating voltage it will generate mechanical vibration; conversely, the applied mechanical force it will produce a voltage signal. Therefore, it can be used as a vibration sensor using the piezoelectric ceramic buzzer. The voltage signal generated by the mechanical force is very weak, and the vibration sensor is used to connect the voltage amplifier.

pressure electric ceramic buzzer buzzer consists of a piezoelectric ceramic plate and the metal diaphragm adhesive composition, metal diaphragm material is brass, iron, stainless steel, nickel alloy, usually pressure electric ceramic buzzer buzzer round. It is mainly divided into its exciting, self - excited, etc.. ordinary type (thickness 0.4 mm), thin (thickness 0.2 mm) ultra-thin below (thickness 0.1 mm) and eccentric, square, circular and shaped double-sided, feedback shape and other various.

main features: good sound quality, thin and light, low power consumption, long service life.

The main technical indexes of : resonant frequency, resonant impedance, static capacitance.

applicable to the volume of smaller and thinner electronics, electrical products such as electronic watches, electronic thermometers, calculator, musical greeting cards, telephone, remote control electric appliances and a variety of electronic products sound, alarm, can also be as sound control electronic products of acoustic sensor.