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Excerpt from The Standard-Cell Comparator, a Specialized Potentiometer
In recent years, however, the movement for the revision of the values of the electrical units has accentuated the demand for high precision and reliability in the intercomparison of primary standards. For example, it is desirable that the absolute measurements of current now under way in several national laboratories shall give results agreeing to 1 part in when reduced to a common basis. To do this, it is desirable that each laboratory should know the values of its resistance standards and standard cells, in terms of its inter national ohm and volt, to 1 part in This in turn means that it would be desirable to hold down fortuitous errors in the comparison of its working coils and cells with those representing its units to one or two units in the next decimal place; that is, to 1 or 2 parts in The extension of the accuracy of a class of measurements by an additional decimal place requires recourse to refinements and precautions previously regarded as uncalled for.
This paper describes a special potentiometer which is used in the standard-cell laboratory of the Bureau of Standards. In its design and construction all available precautions and refinements have been utilized in order that it shall meet the exacting requirements of the new era in the history of the electrical units.
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- VerlagForgotten Books
- Erscheinungsdatum2018
- ISBN 10 1527776786
- ISBN 13 9781527776784
- EinbandTapa blanda
- SpracheEnglisch
- Anzahl der Seiten28
- Kontakt zum HerstellerNicht verfügbar
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Brooks, H: Standard-Cell Comparator, a Specialized Potentiom
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Zustand: New. KlappentextrnrnExcerpt from The Standard-Cell Comparator, a Specialized PotentiometerIn recent years, however, the movement for the revision of the values of the electrical units has accentuated the demand for high precision and reliabil. Bestandsnummer des Verkäufers 2149088035
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The Standard-Cell Comparator, a Specialized Potentiometer (Classic Reprint)
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781527776784
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The Standard-Cell Comparator, a Specialized Potentiometer (Classic Reprint)
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781527776784
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The Standard-Cell Comparator, a Specialized Potentiometer (Classic Reprint)
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Paperback. Zustand: New. Print on Demand. This book introduces a method for the highly accurate comparison of standard cells through the use of a potentiometer. The method is explained thoroughly, with particular attention given to features that ensure high precision and reduce or eliminate errors that could arise during the comparison process. A standard cell comparator was designed and built to employ this method, with the full details of the instrument presented in this book. The instrument is notable for its ability to measure emf values and indicate the results directly, without the need for interpolation or additional calculations. The comparator's operating procedure is described step-by-step, and its operating limits and potential uses are discussed. The book is an essential resource for anyone involved in the precise measurement of standard cells, providing a detailed guide to a highly accurate and efficient method for doing so. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781527776784_0
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