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Piezoelectric Experimental Setup

Conversion of Vibration to Voltage using Piezoelectric materials

  1. Many electronic devices today use piezoelectricity. For example, when you use some type of voice-recognition software, or even on your smartphone, the microphone that you’re speaking into is probably using piezoelectricity. That piezo crystal turns the sound energy in your voice, and changes it into electrical signals for your computer or your phone to interpret. That all becomes possible with piezoelectricity.
  2. Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.

The word piezoelectricity means electricity resulting from pressure and latent heat. Some crystals generate electrical energy when mechanical stress is applied and deform when electrical field is applied. Such behavior is called piezoelectric property.

The single board trainer helps to studies :

  1. Mechanical energy to electrical Energy using piezoelectric Crystal, Plot Vibration frequency Vs. Output Voltage.
  2. Electrical to Mechanical Energy using Piezo.

The set up consists of :

  1. Power Sine wave Generator.
  2. Piezoelectric Crystal fitted with Speaker  [ Mechanical to electrical conversion].
  3. Two Piezoelectric Crystal in sandwich form [ electrical to Mechanical conversion].
  4. Amplifier.
  5. Ac Voltmeter.