V2EX frequency stability

Frequency Stability

定义 Definition

频率稳定性:指振荡器、时钟源、电网或通信系统中的频率随时间保持恒定的能力;通常关注频率漂移、短期抖动以及对温度、老化、负载变化等扰动的敏感程度。(在不同领域也可特指电力系统的频率维持能力等。)

发音 Pronunciation (IPA)

/frikwnsi stblti/

例句 Examples

The frequency stability of this oscillator is good enough for basic radio projects.
这个振荡器的频率稳定性足够用于基础的无线电项目。

To meet the specification, the device must maintain frequency stability across temperature changes and long operating hours.
为满足规范要求,该设备必须在温度变化和长时间运行条件下保持频率稳定性。

词源 Etymology

frequency 来自拉丁语 frequentia(“频繁、出现次数”),在科学语境中引申为“单位时间内的重复次数”,即“频率”。stability 源于拉丁语 stabilis(“稳固的”)。合在一起,frequency stability 字面义为“频率的稳固程度”,在工程与物理中固定化为衡量频率是否“漂移/波动”的指标性术语。

相关词 Related Words

文学与著作中的用例 Notable Works

  • *IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems (IEEE 1588)*(时间同步与时钟稳定性语境中常见)
  • IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology(频率/时间计量与稳定性相关定义)
  • Time and Frequency: Theory and Fundamentals(时间与频率基础教材/专著中用于讨论频率稳定性与测量方法)
  • RF Microelectronics(射频电路教材中常在振荡器章节讨论频率稳定性、漂移与相位噪声)
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