V2EX open-loop

Open-loop

释义 Definition

开环(控制):指没有把输出结果反馈回系统来纠正或调整输入的控制方式/系统。开环系统通常结构更简单,但对外界扰动或参数变化的抗干扰能力较弱。(在不同语境中也可指“非闭环的/无反馈的”流程或机制。)

发音 Pronunciation (IPA)

/opn lup/

例句 Examples

An open-loop controller runs on a fixed schedule.
开环控制器按照固定的时间表运行。

In an open-loop system, the motor speed may drift because the controller never checks the actual output.
在开环系统中,电机转速可能会漂移,因为控制器从不检测实际输出。

词源 Etymology

open(开放的、未闭合的)+ loop(环路、回路)。在控制工程里,loop(环路)常指“反馈回路”。“open-loop”字面意思是“环路未闭合”,引申为“没有反馈环节的控制/系统”。

相关词 Related Words

文学作品示例 Literary Works

  • Norbert Wiener《Cybernetics: Or Control and Communication in the Animal and the Machine》(《控制论》):讨论反馈与控制概念时常涉及开环/闭环的对比与思想基础。
  • Karl J. strm & Richard M. Murray《Feedback Systems: An Introduction for Scientists and Engineers》:在讲解反馈系统时会系统性对照开环与闭环结构与性能差异。
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