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词汇 piezoelectricity
释义

Definition of piezoelectricity in English:

piezoelectricity

noun pʌɪˌiːzəʊɪlɛkˈtrɪsɪtiˌpiːzəʊɪlɛkˈtrɪsɪti
mass noun
  • Electric polarization in a substance (especially certain crystals) resulting from the application of mechanical stress.

    压电(现象)

    Example sentencesExamples
    • Electricity as a natural phenomenon shows up in many forms, including piezoelectricity, static electricity, atmospheric effects, and cosmic rays.
    • Thus, electrical and mechanical changes are coupled, analogous to piezoelectricity.
    • The motile mechanism of the outer hair cell is analogous to piezoelectricity in that it is based on direct electromechanical coupling, in which charge is transferred across the membrane.
    • During the week, floating tiles would generate energy through piezoelectricity, a 19 th-century technology that is used to power quartz watches.
    • Our observation confirms that prestin is indeed a motor protein based on piezoelectricity.

Piezoelectric substances are able to convert mechanical signals (such as sound waves) into electrical signals, and vice versa. They are therefore widely used in microphones, gramophone pickups, and earphones, and also to generate a spark for lighting gas

Derivatives

  • piezoelectric

  • adjective piːzəʊɪˈlɛktrɪkpʌɪˌiːzəʊɪˈlɛktrɪk
    • Relating to or involving electric polarization resulting from the application of mechanical stress.

      压电(现象)

      piezoelectric materials create electrical charge when mechanically stressed
      Example sentencesExamples
      • These substances are called piezomagnets, analogous to the terminology for piezoelectric crystals whose electrical conductivity changes when they are subjected to pressure.
      • The structures are actuated with electrostatic, piezoelectric, or electromagnetic forces.
      • Significantly, they have piezoelectric and electrostatic polarization properties that could be of use in small-scale sensing and microsystem applications, perhaps in the medical field.
  • piezoelectrically

  • adverbˌpiːzəʊɪlɪˈlɛktrɪk(ə)lipʌɪˌiːzəʊɪlɪˈlɛktrɪk(ə)li
    • A correcting element like a piezoelectrically driven mirror or an acousto-optic deflector steers the beam incident on the polygon to correct for the current facet error.
      Example sentencesExamples
      • The two lever pairs were both controllable by piezoelectrically driven manipulators, one of which could also be automatically driven by a computer.
      • The similar techniques use periodic piezoelectrically induced deformation of one or two fluidic channels to the solution nebulizer.

Origin

Late 19th century: from Greek piezein 'press, squeeze' + electricity.

Definition of piezoelectricity in US English:

piezoelectricity

noun
  • Electric polarization in a substance (especially certain crystals) resulting from the application of mechanical stress.

    压电(现象)

    Piezoelectric substances are able to convert mechanical signals (such as sound waves) into electrical signals, and vice versa. They are therefore widely used in microphones, phonograph pickups, and earphones, and also to generate a spark for igniting gas

    Example sentencesExamples
    • Electricity as a natural phenomenon shows up in many forms, including piezoelectricity, static electricity, atmospheric effects, and cosmic rays.
    • During the week, floating tiles would generate energy through piezoelectricity, a 19 th-century technology that is used to power quartz watches.
    • Our observation confirms that prestin is indeed a motor protein based on piezoelectricity.
    • The motile mechanism of the outer hair cell is analogous to piezoelectricity in that it is based on direct electromechanical coupling, in which charge is transferred across the membrane.
    • Thus, electrical and mechanical changes are coupled, analogous to piezoelectricity.

Origin

Late 19th century: from Greek piezein ‘press, squeeze’ + electricity.

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