DocumentCode
1459222
Title
The alpha gauge
Author
Shaw, E.N.
Volume
14
Issue
9
fYear
1954
fDate
9/1/1954 12:00:00 AM
Firstpage
414
Lastpage
418
Abstract
The apparatus described is for the measurement of weight per unit area of very thin materials, such as capacitor paper. An alpha source is used in conjunction with an ionization chamber backed off by a similar system. The algebraic sum of the currents is fed into a stable d.c. amplifier, and the out-of-balance reading calibrated in terms of weight. The sources of error are investigated, together with methods of compensation. Results obtained under factory conditions are also discussed.
Keywords
instrumentation; measurement by electrical methods; mechanical variables measurement;
fLanguage
English
Journal_Title
Radio Engineers, Journal of the British Institution of
Publisher
iet
Type
jour
DOI
10.1049/jbire.1954.0053
Filename
5258936
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