请输入您要查询的英文单词:

 

单词 ohmmeter
释义

ohmmetern.

Brit. /ˈəʊmˌmiːtə/, U.S. /ˈoʊ(m)ˌmidər/
Forms: 1800s– ohmmeter, 1900s– ohmeter.
Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: ohm n.2, -meter comb. form2.
Etymology: < ohm n.2 + -meter comb. form2, perhaps after French ohmmètre (1883).
An instrument for measuring electrical resistance in ohms.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun] > unit of resistance > instrument for measuring
ohmmeter1884
megohmmeter1909
1884 F. Krohn tr. G. Glaser de Cew Magneto- & Dynamo-electr. Machines 237 We shall not..describe this instrument,..nor the ohm-meter, for measuring resistance in ohms.
1891 ‘Electrician’ Primer No. 12. 8 Ohmmeters indicate the ratio of the pressure between the ends of a conductor to the current passing through that conductor.
1926 Science 23 July p. xiii (advt.) A Weston portable direct reading ohmmeter for use in making rapid resistance measurements for both commercial and scientific work.
1963 L. K. Nash Nature Nat. Sci. vi. 144 An ohmeter gives a direct pointer reading of ‘resistance’, but ultimately it yields a comparison of this resistance with that of a particular spool of manganin wire.
1988 B. Sterling Islands in Net (1989) iv. 130 Ohm meter, wire stripper, needlenose pliers.
1990 Skin Diver Mar. 146h/1 You can test the output of your charger with either a battery tester or an ohmmeter.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
<
n.1884
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/11 18:32:59