V2EX wheatstone bridge

Wheatstone Bridge

Definition 定义

惠斯登电桥:一种由四个电阻组成的“桥式”电路,用于精确测量未知电阻或检测电阻的微小变化(常用于传感器测量,如应变片、温度电阻等)。在平衡状态下,检流计(或测量端)两点电位相等,电流为零。

Pronunciation 发音

/wetstn brd/

Examples 例句

We used a Wheatstone bridge to measure the unknown resistor.
我们用惠斯登电桥来测量那个未知电阻。

In a strain-gauge sensor, a Wheatstone bridge converts tiny resistance changes into a measurable voltage signal.
在应变片传感器中,惠斯登电桥把微小的电阻变化转换成可测量的电压信号。

Etymology 词源

该术语来自英国科学家查尔斯惠斯登(Charles Wheatstone, 18021875)的名字;“bridge(桥)”指这种电路结构像一座桥,把两条分支“跨接”起来进行比较与平衡测量。该电路思想也与早期电学测量方法发展有关。

Related Words 相关词

Notable Works 文学与名著用例

  • The Feynman Lectures on Physics(费曼《物理学讲义》)在电路与测量相关内容中常提及电桥/电阻测量思想。
  • The Art of Electronics(Horowitz & Hill,《电子学艺术》)在模拟电路与传感器接口部分涉及电桥应用。
  • A Textbook of Electrical Technology(Theraja & Theraja,《电工技术教材》)在直流测量与电桥章节系统讲解惠斯登电桥。
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