V2EX dead-time

Dead-time

Definition / 定义

dead-time(也写作 dead time):指系统、设备或流程中无法进行有效工作/响应的“空档期”。常见于工程与科学语境,如:

  • 死区时间/盲区时间:探测器、计数器等在一次事件后短时间内无法记录下一次事件的时间段。
  • 空转时间/无效等待时间:生产、服务或工作流程中因等待、切换、延迟造成的无产出时间。
    (该词也可泛指“无聊的空白时间”。)

Pronunciation / 发音

/dd tam/

Examples / 例句

The machine has a lot of dead-time between cycles.
这台机器在每个循环之间有很多空转时间。

To improve throughput, they reduced dead-time by automating the changeover process and tightening the schedule.
为了提高产出率,他们通过自动化换线流程并压缩排程来减少无效等待时间。

Etymology / 词源

dead 本义为“死的、失去作用的”,在技术与日常表达中也可引申为“无效的、停滞的”;time 为“时间”。合在一起,dead-time 字面即“失效的时间”,强调这段时间里系统不产生有效输出不具备响应能力

Related Words / 相关词

In Literature / 文学与作品中的用例

  • The Goal(Eliyahu M. Goldratt)在制造与流程改进讨论中常涉及“等待/无效时间(dead time)”等概念与表述。
  • Lean Thinking(James P. Womack, Daniel T. Jones)精益生产语境中常用 dead time 指流程中的浪费性等待。
  • Designing Data-Intensive Applications(Martin Kleppmann)在系统性能与处理链路讨论中会出现类似 dead time/idle time 的用法,用于描述无有效处理的时间段。
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