piezoelectric effect

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piezoelectric effect

A student observes the piezoelectric effect by pressing a quartz crystal.

Definition
  1. Noun:
    • The generation of electricity or electric polarization in certain crystalline materials when they are subjected to mechanical stress or pressure. This is a direct physical effect where applying force to the material creates an electric charge.
    • Conversely, the mechanical deformation or change in shape of such materials when an external electric field is applied to them. This is the reverse of the primary effect.
Usage Examples
  • Noun:
    • The piezoelectric effect is used in quartz watches to keep precise time.
    • Microphones often utilize the piezoelectric effect to convert sound waves (pressure) into electrical signals.
    • Applying a voltage to the crystal demonstrated the reverse piezoelectric effect, causing it to vibrate.
Advanced Usage
  • "Direct piezoelectric effect": Specifically refers to the generation of an electric charge in response to applied mechanical stress.
    • The direct piezoelectric effect is the principle behind many pressure sensors.
  • "Reverse/Converse piezoelectric effect": Specifically refers to the mechanical deformation produced by an applied electric field.
    • The reverse piezoelectric effect is exploited in devices like ultrasonic transducers and precise actuators.
Variants and Related Words
  • Piezoelectricity (n): The electric charge that accumulates in certain solid materials in response to applied mechanical stress; the phenomenon or property itself.
    • Piezoelectricity is a key property of materials like quartz.
  • Piezoelectric (adj): Describing a material that exhibits the piezoelectric effect or a device that operates using it.
    • This is a piezoelectric crystal. The device has a piezoelectric element.
  • Piezoelectrically (adv): In a manner relating to or using the piezoelectric effect.
    • The signal was generated piezoelectrically.
Synonyms
  • Electromechanical coupling: A broader term for the interaction between electrical and mechanical systems, which includes the piezoelectric effect.
  • Piezo effect: A common informal shortening.
Related Phrases and Compounds
  • Piezoelectric sensor: A device that uses the effect to measure changes in pressure, acceleration, or force.
  • Piezoelectric actuator: A device that uses the reverse effect to create precise mechanical movements.
  • Piezoelectric material: A substance, such as quartz or certain ceramics, that exhibits the piezoelectric effect.
piezoelectric effect

A student observes the piezoelectric 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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