ENERGY CONVERSION DEVICES PIEZOELECTRIC CERAMICS

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"Precise actuation and sensing.”

Piezoelectric elements have a unique characteristic whereby the element elongates or vibrates when an external voltage is applied, similar to how it generates electricity when external pressure is applied. Kyocera's piezoelectric elements transform and vibrate at levels of nanometers to micrometers level in less than a micro second and repeat such movement rapidly and accurately, even in tough operating conditions, such as in a car. Conversely, when the piezo device receives mechanical pressure, it is converted to electricity, which becomes a signal and is used for a sensor/detector.
Because of Kyocera's unique lamination technology, our piezo devices have achieved automotive-grade durability, and are used in many highly demanding applications.

BASIC STRUCTURE

Kyocera has two types of piezo device structures, one is a single-plate type, and the other is a multi-layer type, both of which are made of PZT ceramics (lead zirconate titanate). Multi-layer type piezo elements have between tens and hundreds of ceramic layers and internal electrode layers with an external electrode on the out side.
When using vertical/horizontal elongation movement (known as the Inverse Piezoelectric Effect), piezoelectric devices can be used for actuators, ultrasonic transducers, etc. When using the electricity generation effect (known as the Piezoelectric Effect), piezoelectric devices can be used for pressure sensors, power generation modules, etc.
As shown in the figure below, there is a vertical displacement type, which elongates along with the electric field direction, and a horizontal displacement type, which elongates perpendicularly against the electric field.

vertical displacement type
horizontal displacement type

ADVANTAGES

  • Super fast response
  • High precision displacement
  • Low power consumption
  • Electromagnetic (noiseless)
  • Long life (has been installed in automobiles)

INNOVATION

 INNOVATION

Kyocera will continue to develop advanced devices using Piezoelectric technology

LINE-UP

Kyocera has three kinds of basic product structures.
We propose suitable designs based on customers' requirements.

SINGLE PLATE TYPE

SINGLE PLATE TYPE

Single plate type piezo has a structure with single layer piezo plus surface electrodes on the top and bottom of the plate. It is used as a pressure sensor using the “positive piezoelectric effect", and as an ultrasonic sensor using the "inverse piezoelectric effect”.

SPECIFICATIONS

Available dimentional range

Disk type
Disk type
Diameter:Φ10-40㎜
Thickness:0.1㎜~
Ring type
Ring type
Diameter:Φ10-20㎜
Thickness:0.2㎜~

The products can be customized based on customer requests.

APPLICATIONS

  • IoT / 5G

    IoT / 5G
    ・Ultrasonic flaw detection
    ・Pressure sensor
    ・Vibration sensor
    ・Touch sensor
    ・Buzzer
    etc.
  • Semiconductor

    Semiconductor
    ・Liquid level sensor
    ・Ultrasonic welding
    ・Ultrasonic cleaner
    etc.
  • Science / Medical

    Science / Medical
    ・Nebulizer / Inhaler
    ・Micro pump
    ・Ultrasonic diagnostic equipment
    etc.
  • Ecology / Energy

    Ecology / Energy
    ・Smart meter (gas/water flow meter)
    etc.
  • Mobility

    Mobility
    ・Ultrasonic distance sensor
    ・Pressure sensor
    etc.
  • Science / Medical

    Science / Medical Nebulizer / Inhaler

    Nebulizer / Inhaler

    Kyocera’s Piezo element is used for medical nebulizers, inhalers, and air fresheners to atomize liquid media by fine vibration. Kyocera, which has been working on optimizing the manufacturing process for many years, provides Piezo elements with high reliability, durability, and stable quality.

  • Science / Medical

    Mobility Ultrasonic distance sensor

    Ultrasonic distance sensor

    Ultrasonic sensors are used in various automotive applications such as parking sensors and liquid level sensors. Kyocera has been working in this field and has achieved outstanding quality and durability for automotive applications.

  • Mobility

    Mobility Pressure sensor

    Pressure sensor

    Kyocera's piezoelectric elements show stable sensing performance over long periods even in harsh environments, such as automobiles. The number of automotive sensor devices is expected to increase as demand increases to match trends in autonomous and assisted driving.

Please feel free to contact us for any other applications not listed above.

SAMPLE PRODUCTS

After receiving an inquiry, our sales team will contact you to confirm your requirement details. Depending on the requirement, we will choose and propose suitable standard samples for evaluation.

CONTACT FORM

Please feel free to contact us.
Kyocera is always exploring ways to support new innovations and we look forward to finding solutions to your challenges.