What's a transducer?
Publish Time: 2016-12-21 Origin: Site
A transducer is any device used to convert electrical energy, mechanical energy or acoustic energy from one form to another; typically when converting input energy into output energy.For transduction to occur, a change from one form of energy must also take place, such as a conversion from mechanical to electrical energy or vice versa. The uses of transducers are widespread, impacting us in many ways. Transducer is the core of the ultrasonic device, its characteristic parameters determine the performance of the entire device.
Piezoelectric transducer is the use of some of the piezoelectric effect of single crystal materials and some polycrystalline materials of electrostrictive effect to the electrical energy and acoustic energy conversion devices. The word "piezoelectric" literally means electricity caused by pressure. Because of its high electroacoustic efficiency, power capacity and structure and shape can be designed according to different applications, widely used in the field of power ultrasound. Usually we are talking about the electroacoustic transducer, the transducer that can transmit sound wave is called the transmitter; The transducer that is used for receiving the sound wave is called the receiver. For example, piezoelectric buzzer belongs to electroacoustic transducer, usually can be used as alarm and so on.