piezoelectric

/pai,i:zoui'leitrik/

Thân thiện

A piezoelectric plate converts pressure into a small electrical signal.

Definition

1. Adjective: Relating to or involving piezoelectricity; describing the property of certain materials to generate an electric charge in response to applied mechanical stress, and conversely, to change shape when an electric field is applied.

Usage

The adjective "piezoelectric" is used to describe materials, components, effects, or devices that operate based on the principle of piezoelectricity. It is a technical term common in physics, materials science, and engineering contexts.

Examples

• Adjective:
  • Quartz is a common piezoelectric material used in watches and sensors.
  • The microphone uses a piezoelectric element to convert sound waves into electrical signals.
  • Piezoelectric actuators provide precise movement in scientific instruments.

Advanced Usage

• "Piezoelectric effect": The direct phenomenon where mechanical stress generates electricity (direct effect) or an applied voltage causes mechanical deformation (converse effect).
  • The piezoelectric effect is fundamental to the operation of ultrasound transducers.
• "Piezoelectric transducer": A device that converts one form of energy to another using the piezoelectric effect, such as a sensor or actuator.
  • A piezoelectric transducer in the guitar pickup converts string vibrations to an audio signal.

Variants and Related Words

• Piezoelectricity (n): The electric charge that accumulates in certain solid materials in response to applied mechanical stress; the phenomenon itself.
  • The discovery of piezoelectricity revolutionized sensor technology.
• Piezoelectrically (adv): In a manner relating to or by means of piezoelectricity.
  • The crystal oscillates piezoelectrically.

Synonyms

• Electromechanical: Involving the interconversion of electrical and mechanical energy (this is a broader category that includes piezoelectric systems).

Related Phrases and Compounds

• Piezoelectric constant: A numerical value characterizing the piezoelectric properties of a specific material.
  • The piezoelectric constant determines the material's sensitivity.
• Piezoelectric ceramic: A man-made, polycrystalline material (like PZT) engineered to have strong piezoelectric properties.
  • Piezoelectric ceramics are used in buzzers and inkjet printer heads.

Học thuật

Adjective

1. relating to or involving piezoelectricity
   • piezoelectric plates