Piezoelectric ceramic used in electro-acoustic equipment

With the nature of the piezoelectric ceramic transducer itself has been widely used in various research and development of advanced equipment, including electro-acoustic devices pickups and speaker on the application of this nature. 

Piezoelectric ceramic rings 

In the electro-acoustic devices, applications, piezoelectric ceramic bonding happens to be made into a double diaphragm type piezoelectric vibrator can, it's mechanical impedance is low, and can cooperate with the source and vibration source. Double-diaphragm transducer unique a unique nature, it is a stretch during which the other one will be relatively short, the overall presentation in the form of bending movement. In this process, the ceramic sheet charge is generated internally, causing the opposite dipole moments, so there is no potential difference. 

Piezoelectric ceramics used in pickups, dual-channel is made out of ceramic pickups. Its principle is simple, the first player playback, then the pickup tip will move along the LP tank, resulting in the synthesis of mechanical vibration. At the same time, the vibration of the coupling member into two mutually perpendicular components, respectively, then the incoming ends of the two components of the sensor, so that it will form a bending vibration. Thereafter, through the piezoelectric effect is to convert it to the left and right channel audio signals. In this process, plays a relevant role in the rubber holder, the rubber damping member, the coupling member and the rubber hardness, elasticity and strength and the relative position of the supporting rubber member has a needle bar and the like. 

Pickup 

Piezoelectric ceramics used in speakers, is made out of piezoelectric ceramic speaker, it is a simple, lightweight electro-acoustic devices. Such equipment has a high sensitivity, no magnetic field spreading spill, not copper wire and magnet, low cost, low power consumption, easy to repair, easy advantage of mass production, etc., so by all manufacturers trust. Job, play an important role in driving the piezoelectric ceramic is double diaphragm, the cone is a vibration system, the coupling element is transmitted to the diaphragm energy efficient cone, that is, the electrical energy into mechanical energy, so mechanical vibrations can issue voice. The reason for using a piezoelectric double diaphragm here, but also because it has a high impedance, it is easy to be able to form a voltage drive. 

Speakers 

In addition, there are some other use of piezoelectric ceramics produced electro-acoustic devices, such as receiver, buzzer, etc., all in their respective fields to become a leader!