V2EX transducer

Transducer

定义 Definition

transducer 是一个名词,指"换能器"或"传感器",即一种将一种形式的能量或信号转换为另一种形式的装置。例如,麦克风将声波转换为电信号,扬声器则将电信号转换为声波,它们都是换能器。

发音 Pronunciation

/trnzdjusr/(美式) /trnzdus(r)/(英式)

例句 Examples

The microphone is a transducer that converts sound waves into electrical signals.
麦克风是一种将声波转换为电信号的换能器。

Modern medical imaging relies heavily on ultrasonic transducers, which emit high-frequency sound waves and interpret the echoes to create detailed images of internal organs.
现代医学影像技术在很大程度上依赖超声换能器,它发射高频声波并解读回声,从而生成人体内部器官的详细图像。

词源 Etymology

transducer 源自拉丁语 transducere,由 **trans-**(意为"跨越、穿过")和 ducere(意为"引导、带领")组合而成,字面意思是"引导穿过"。该词在20世纪初被引入英语,最早用于物理学和工程学领域,描述能够将一种能量形式转化为另一种的装置。后缀 -er 表示执行动作的事物。与之相关的动词形式为 transduce(转换、转导)。

相关词汇 Related Words

文学与学术作品引用 Literary & Academic References

  • 在诺伯特维纳(Norbert Wiener)的经典著作 Cybernetics: Or Control and Communication in the Animal and the Machine(1948)中,transducer 被用来讨论信息在生物系统与机械系统之间的转换机制。
  • 在克劳德香农(Claude Shannon)的信息论奠基论文 A Mathematical Theory of Communication(1948)中,transducer 作为通信系统中信号转换的核心概念被反复提及。
  • 在计算机科学领域,transducer 也用于指代有限状态转换器(finite-state transducer),这一概念在乔姆斯基(Noam Chomsky)等语言学家的形式语言理论著作中有重要地位。
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