An Experimental Study of the Fahy Permeameter (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from An Experimental Study of the Fahy Permeameter

The Burrows 4 permeameter has a magnetic circuit consisting of two similar rods and two short yokes. Solenoids surround the rods. Small coils wound around the rods near the joints carry a current just sufficient to overcome the reluctance of the joints and yokes. This is the precision method of the Bureau of Standards and has been officially adopted as the standard method by the American Society for Testing Materials.

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