Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 84
by the permea-meter which should be carefully considered, and eliminated as far as possible. a. The unavoidable air gap between the sample and the yoke where itpasses through the hole in the upper part of the yoke, together with themore or less imperfect contact at the lower end of the sample,… … b. As the magnetization becomes greater the leakage at the lower end ofthe sample increases more rapidly ; and there is considerable error at veryhigh values from this source, as the leakage lines are not broken with therest. c. Errors in the calibration and reading of the spring balance. Nonebut…
Electrical engineering
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