File:Absolute standards of inductance (IA absolut28714319062929unse).pdf
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[edit]Absolute standards of inductance
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| Title |
Absolute standards of inductance |
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| Volume | Bulletin of the Bureau of Standards, Vol. 2, 87-143 (1906) Scientific Paper 29 (S29) | |
| Publisher |
National Bureau of Standards |
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| Description |
In the first part of this paper the construction and measurement of some standards are described. Each inductance coil consists of a single layer of wire wound on a nearly perfect circular cylinder of marble. This latter was ground on a Poole grinder as used to shape the rolls or calendars employed in paper machinery. The cyclinders are remarkably perfect, the max. variation in the diam. being 0.0013 cm. On one of the standards the wire was singly wound, the winding being divided into three parts. On the other coil two strands were wound at once, the subdivisions being such that there are in reality four separate and distinct coils in pairs. This coil also furnishes a standar Subjects: electromagnetic induction; measurements and use of instruments; molecular physics, matter and ether; Electrical instruments and techniques |
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| Language | English | |
| Publication date | June 1906 | |
| Current location |
IA Collections: NBSBulletin; NISTresearchlibrary; fedlink; americana |
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| Accession number |
absolut28714319062929unse |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| current | 21:49, 27 August 2020 |  | 908 × 1,372, 64 pages (4.01 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection absolut28714319062929unse (User talk:Fæ/IA books#Fork8) (batch 1000-3000 #116740) |
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