V2EX clamp meter

Clamp Meter

定义 Definition

钳形表(钳形电流表):一种通过可开合的“钳口”夹住导线、利用电磁感应等原理非接触式测量电流的仪表。许多钳形表也可测量电压、电阻、频率等(功能因型号而异)。

发音 Pronunciation

/klmp mitr/

例句 Examples

The technician used a clamp meter to check the current without disconnecting the wire.
技术员用钳形表在不拆线的情况下检查电流。

Because the motor load fluctuates, we logged the current with a clamp meter over several hours to find the peak draw.
由于电机负载会波动,我们用钳形表连续记录数小时的电流,以找出最大电流值。

词源 Etymology

clamp 意为“夹具、夹紧”,来自日常英语中“夹住/固定”的动作含义;meter 意为“计量器”,源自希腊语 metron(“测量”)。合在一起的 clamp meter 直译就是“用夹钳结构来测量的仪表”,在电工语境中特指“夹住导线即可测电流”的仪器,也常见别称 clamp-on ammeter(钳形电流表)。

相关词 Related Words

文学与作品 Literary Works

  • Ugly’s Electrical References(常见于电工速查手册中对 clamp meter / clamp-on ammeter 的介绍与使用场景)
  • The Art of Electronics(在电子测量与调试章节中常提到使用钳形表测量电流的做法与注意事项)
  • NFPA 70E Handbook(电气安全实践资料中常出现用钳形表进行带电检测与负载评估的表述)
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