Electricity: measuring and testing – Magnetic – Fluid material examination
Patent
1989-02-03
1991-03-19
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Magnetic
Fluid material examination
73 64, 340631, G01N 2774, G01R 3312
Patent
active
050014242
ABSTRACT:
An apparatus for detecting magnetic particles suspended in a liquid, such as particles suspended in lubricating oil flowing through an engine. The oil is caused to pass through the area coupling two or more coils while the mutual inductance of the coils is monitored. When a magnetic particle enters the area coupling the coils, the mutual inductance of the coils will increase, thereby indicating the presence of the particle.
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Erickson John R.
Kellett I. Peter
Edmonds Warren S.
Eisenzopf Reinhard J.
Product Resources, Inc.
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