An experimental study of the Koepsel permeameter (1914)
National Bureau of Standards · leaf 31
ng the tips of the loops Burrows] The Koepsel Permeameter 127 crosses the true curve at a moderately high value. The observedresidual induction ciu-ve is always lower than the true ctuve.The observed coercive force ctirve shows values of the coerciveforce always too large, no matter what maximum… … Fig. 16.—Showing curves of normal induction, residual induction, and coercive forcefor a sample of tool <:teel as obtained by the authors method (solid line) and by theKoepsel method (broken line) low and that the error is greater with material having the higherinductions. The observed coercive…
Magnetism · measurements and use of instruments/ B8000 Power systems and applications
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