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Ultrasonic Transducer

Application Theory for Ultrasonic Transducer

When an AC voltage drives the piezoelectric ceramic, it mechanically vibrates with a certain frequency. The opposition is true, when the ceramic vibrates, it will produce an AC voltage. This is the piezoelectric effect. Using this theory, when sending an electrical signal, the oscilator that consists on the two sides of the piezoceramics can bend and send ultrasonic wave. Basing on the effect, we will use the piezoceramics in the ultrasonic sensor.