Measurement of a saturation magnetic flux density through use of

Details Measurement of a saturation magnetic flux density through use of Measurement of a saturation magnetic flux density through use of

1993-12-17

1996-09-10

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

Fluid material examination

73 5301, 73 6142, G01N 2774, G01R 3312

Patent

active

055549322

ABSTRACT:
In order to measure the magnetic saturation flux density of a sample material, a first and a second sample holder are symmetrically position on either side of a cylindrical permanent magnet. Coils are placed around the sample holders and the permanent magnet is rotated. The signals induced in the coils in the absence of a magnetic material in one of the sample holders are applied to an amplifier/meter in such a manner as to provide a null signal. When a sample is placed in one of the sample holders, the magnetic saturation flux density can be measured. The present device finds particular application to determining the concentration of a magnetic particles dispersed in a fluid.

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LDJ Inc., The Model 7600A Microprocessor Controlled BH Meter (Date not available).
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