A valve wattmeter
作者:
E.Mallett,
期刊:
Journal of the Institution of Electrical Engineers
(IET Available online 1933)
卷期:
Volume 73,
issue 441
页码: 295-302
年代: 1933
DOI:10.1049/jiee-1.1933.0128
出版商: IEE
数据来源: IET
摘要:
The paper describes a wattmeter depending for its action on the use of two thermionic valves and a direct-current measuring instrument. Three forms of instrument are described, the first suitable for measuring the powers used in ordinary power work, and the second and third for measuring the small powers using in communication work.
点击下载:
PDF
(781KB)
返 回