The complexity and range of types of available permeameter make inter-laboratory standardisation and commercial grading difficult. A simplified and inexpensive electronic permeameter offers the prospect of a readily specified standard instrument which is easy to use and rapid in action. A solid-state integrator replaces the usual electromechanical fluxmeter.
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References
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BeckleyP.MildoonJ.‘A coercive force grading instrument for relay iron’, Measurement and Control, August, 1974.
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DrakeA. E.HartlandA.‘A vibrating coil magnetometer for the determination of the magnetisation coercive force of soft magnetic materials’, J Sci Inst1973, 6, 9, September.
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BS 601: Part 5: 1973. Steel sheet and strip for magnetic circuits of electrical apparatus.
