V2EX transponder

Transponder

定义 Definition

Transponder(名词)是一种电子设备,能够接收信号并自动发送回应信号。广泛用于航空、卫星通信、交通收费系统等领域。中文常译为"应答器"或"转发器"。

发音 Pronunciation

/trnspndr/(英式) /trnspndr/(美式)

例句 Examples

Every aircraft is required to carry a transponder so that air traffic control can track its position.
每架飞机都必须配备应答器,以便空中交通管制能够追踪其位置。

The toll system uses a small transponder mounted on the windshield to automatically deduct fees as vehicles pass through the gate without stopping.
收费系统利用安装在挡风玻璃上的小型应答器,在车辆通过闸口时自动扣费,无需停车。

词源 Etymology

Transponder 是一个混成词(portmanteau),由 transmitter(发射器)和 responder(响应器)合并而成,最早出现于20世纪40年代。该词诞生于第二次世界大战期间,当时军方开发了一种能够接收雷达信号并自动回传识别信号的装置,用于区分敌我飞机(即 IFF 系统,Identification Friend or Foe)。战后,这项技术逐渐扩展到民用航空、卫星通信和日常生活中。

相关词汇 Related Words

文学与文化引用 Literary & Cultural References

  • 在阿瑟克拉克(Arthur C. Clarke)的科幻小说中,transponder 常作为太空通信的关键设备出现,尤其在描述卫星和深空探测的情节中。
  • 在汤姆克兰西(Tom Clancy)的军事小说如 The Hunt for Red October 中,transponder 是潜艇和飞机识别系统的核心元素。
  • 在现代流行文化中,transponder 频繁出现在航空题材的影视作品中,例如电影 Die Hard 2 中,篡改飞机应答器信号是关键情节之一。
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