V2EX microamp

Microamp

释义 Definition

microamp(也作 microampere,常写作 μA)微安(培),电流强度单位,等于 10 安培(一百万分之一安培)。常用于描述非常微弱的电流(如传感器、生物电信号、漏电流等)。

发音 Pronunciation

/makromp/

例句 Examples

The sensor draws only 5 microamps. 传感器只消耗 5 微安的电流。

Even a few microamps of leakage current can affect the accuracy of a high-impedance circuit. 即使只有几微安的漏电流,也可能影响高阻抗电路的测量精度。

词源 Etymology

micro- 来自希腊语,表示“微小、百万分之一”;ampampere(安培) 的缩写,而 ampere 源自法国物理学家 安德烈-马里安培(André-Marie Ampère) 的姓氏。合起来表示“百万分之一安培的电流”。

相关词 Related Words

文学作品中的用例 Literary Works

该词属于现代科技计量术语,更常见于工程教材、科研论文、电子手册与标准文档中;在传统文学作品中出现频率很低。较常见于科普与技术写作(如电子学教材、仪器说明书)对微弱电流的描述。

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