Skip to main content


Piezoelectric Sensor

[Click the image to enlarge it]

Pin Configuration

Pin Name

Description

Outer Circle

This gives Negative output voltage

Inner Circle

This gives positive output voltage

 

Features and Specifications

  • Impedance:≤500Ω;
  • Voltage:≤30Vp-p;
  • Operating temperature:-20°C~+60°C
  • Storage temperature:-30°C~+70°C
  • Low Soldering temperature
  • Strain sensitivity: 5V/µƐ
  • Material: Quartz (mostly used)

 

Brief Description

Pierre Curie founded the piezoelectric effect in 1880, but it started to be used for industrial sensing application in 1950. Piezoelectric sensor is used to convert the mechanical stress into electric charge, it gives AC at output.

 

Piezoelectric Effect

The ability of a piezoelectric material to convert a mechanical stress into electrical charge is called a Piezoelectric Effect. The word Piezoelectric derived from the Greek word ‘piezein’ which means to push, press and squeeze. Piezoelectric effect is reversible effect means when we applied mechanical stress to the piezoelectric material we get some electrical charge at output. Same as when we feed electrical charge to the sensor it gets stretch or compresses.

 Piezoelectric Effect

 

Piezoelectric Material

Natural Piezoelectric Material

Synthetic Piezoelectric Material

Quartz (most used)

Lead zirconate titanate (PZT)

Rochelle Salt

Zinc Oxide (ZnO)

Topaz

Barium Titanate (BaTiO3)

TB-1

Piezoelectric ceramics Barium titanate

TBK-3

Calcium barium titanate

Sucrose

Gallium orthophosohate (GaPO4)

Tendon

Potassium niobate (KNbO3)

Silk

Lead titanate (PbTiO3)

Enamel

Lithium tantalite (LiTaO3)

Dentin

Langasite (La3Ga5SiO14)

DNA

Sodium tungstate (Na2WO3)

 

How to Use a Piezoelectric Sensor?

To use a piezoelectric sensor is the easiest task, just connect the positive and negative terminal to your circuit and press the top of sensor. By pressing, due to mechanical pressure it create voltage at output which is further feed to the circuit. You can simply connect a LED to the piezoelectric sensor, as shown in the circuit below. Whenever you press the sensor the LED will give a flash. 

How to use Piezoelectric Sensor

 

Applications

  • Production and detection of sound
  • Generation of high voltage
  • Electronic Frequency generation
  • Microbalances
  • Ultra-fine focusing of optical assemblies
  • Everyday applications like cigarette lighters  



Download Datasheet PDF:
Piezoelectric Sensor Datasheet