壓電陶瓷元件，為利用壓電或逆壓電效應的原理所設計的震動或感測元件。 常應用在震動、壓力感測器、霧化器、蜂鳴器、超音波清洗機與綠能發電地磚等...etc.。常用的材料包括PZT-4、PZT-5、PZT-8、氧化鋁陶瓷或滑石瓷等，每種材料都有對應不同的應用、環境。
Shapes:
- Disc type
- Half disc type
- Column type
- Bar plate type
- Cubic type
- Ring type
- Cylinder type
- Focusing Surface type
- Line focusing type
- Special types
Application:
- Filter
- Piezo-ignitor ultrasonic cleaner
- Ultrasonic sonar humidifier
- Ultrasonic cleaner
- Ultrasonic detector thickness gauge
- Audible range microphone
- Ultrasonic transmitter medical instruments
- Sound pick-up actuator
- Actuator
- Ultrasonic detector medical instruments