V2EX antinode

Antinode

释义 Definition

(物理)波腹;腹点:在驻波中,位移(振幅)达到最大的位置;与波节(node)相对。(在不同语境中也可泛指“振动最强的点”。)

发音 Pronunciation (IPA)

/ntinod/

例句 Examples

The antinode is where the string moves the most.
波腹是弦振动幅度最大的地方。

In a standing wave on a flute, antinodes form at points where the air vibrates with maximum displacement, shaping the instrument’s pitch and resonance.
在长笛的驻波中,波腹出现在空气位移振动最大的点上,从而影响乐器的音高与共鸣。

词源 Etymology

由 **anti-**(“相对、对立”)+ node(“节;结点”)构成,字面意思是“与波节相对的点”。该术语用于描述驻波中与“振动最小的波节”相对应的“振动最大的波腹”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • The Feynman Lectures on Physics(费曼《物理学讲义》):在讲解弦与空气柱的驻波时讨论波节与波腹。
  • Fundamentals of Physics(Halliday, Resnick & Walker《物理学基础》):驻波与简谐振动章节常使用 antinode
  • University Physics with Modern Physics(Young & Freedman《大学物理》):波动与声学部分频繁出现 node/antinode 对照。
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