V2EX emitter

Emitter

释义 Definition

emitter 是一个名词,意为"发射器;发射体;发射极"。指发出或释放某种物质(如光、热、声音、信号或粒子)的装置或物体。在电子学中,特指晶体管的"发射极"。

发音 Pronunciation

/mtr/

例句 Examples

The infrared emitter sends signals to the receiver.
红外发射器向接收器发送信号。

In a bipolar junction transistor, the emitter is the region that injects charge carriers into the base, playing a critical role in signal amplification.
在双极结型晶体管中,发射极是将载流子注入基极的区域,在信号放大中起着关键作用。

词源 Etymology

emitter 源自拉丁语 emittere,由 **e-**(向外)和 mittere(发送、投掷)组成,原意为"向外发送"。英语中先有动词 emit(发射、散发),后加上表示"做某事的人或物"的后缀 -er,构成 emitter,表示"发出某物的装置或主体"。该词在物理学和电子学领域广泛使用。

相关词汇 Related Words

文学与著作引用 Literary References

  • 在物理学经典著作 Richard Feynman 的 The Feynman Lectures on Physics 中,emitter 多次出现于讨论光的发射与吸收的章节。
  • 在 William Shockley 的 Electrons and Holes in Semiconductors 中,emitter 是解释晶体管工作原理的核心术语。
  • 在科幻文学中,如 Isaac Asimov 的作品里,emitter 常被用于描述各种能量发射装置。
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