piezo effect

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piezo effect

A student demonstrates the piezo effect by pressing a quartz crystal.

Definition

Noun: - The piezoelectric effect: A physical phenomenon where certain materials, particularly some crystals like quartz or Rochelle salt, generate an electric charge or voltage in response to applied mechanical stress or pressure. Conversely, the application of an electric field to such materials causes a mechanical deformation or change in their linear dimensions.

Usage Examples
  • Noun:
    • The piezo effect is fundamental to the operation of many sensors and actuators.
    • Quartz watches utilize the piezo effect to keep precise time by using the crystal's vibrations.
    • Measuring force can be done by exploiting the piezo effect to convert pressure into an electrical signal.
Advanced Usage
  • "Direct piezo effect": Refers specifically to the generation of electricity from mechanical stress.
    • Microphones often use the direct piezo effect to convert sound waves (pressure) into electrical signals.
  • "Converse piezo effect" or "inverse piezo effect": Refers to the material's deformation or change in dimensions when an electric field is applied.
    • The precise movement in an inkjet printer nozzle is controlled by the converse piezo effect.
Variants and Related Words
  • Piezoelectricity (n): The electric charge that accumulates in certain solid materials in response to mechanical stress; essentially the outcome of the piezo effect.
  • Piezoelectric (adj): Describing a material that exhibits the piezo effect.
    • Piezoelectric ceramics are common in ultrasonic transducers.
  • Piezoresistive effect (n): A related but distinct phenomenon where electrical resistance changes under mechanical stress, not to be confused with the piezoelectric effect.
Synonyms
  • Piezoelectric phenomenon: A more formal term for the piezo effect.
  • Piezoelectricity: Often used interchangeably, though it can specifically denote the resulting electric charge.
Related Phrases and Compounds
  • Piezo actuator: A device that uses the converse piezo effect to create precise mechanical movement.
  • Piezo sensor: A device that uses the direct piezo effect to detect pressure, force, or acceleration.
  • Piezo crystal: A crystal, such as quartz, that exhibits strong piezoelectric properties.
piezo effect

A student demonstrates the piezo effect by pressing a quartz crystal.

Noun
  1. electricity produced by mechanical pressure on certain crystals (notably quartz or Rochelle salt); alternatively, electrostatic stress produces a change in the linear dimensions of the crystal

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