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单词 acoustoelectric effect
释义 acoustoelectric effect
[ǝ´küs·tō·ǝ`lek·trik i´fekt]
ELECTRONICS
1. The development of a direct-current voltage in a semiconductor or metal by an acoustic wave traveling parallel to the surface of the material. Also known as electroacoustic effect.
2. The amplification of a sound wave propagating in a piezoelectric semiconductor subject to a steady electric field that is strong enough that the resulting electron drift velocity exceeds the speed of sound.
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