Electricity: measuring and testing – Magnetic – Displacement
Patent
1992-08-21
1994-08-09
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Displacement
73660, 324165, 324174, 32420723, 32420724, 32420725, 340682, 417 63, G01B 714, F04B 5100, G01M 1304, G01P 3487
Patent
active
053369963
ABSTRACT:
An apparatus is provided for monitoring a rotor mounted for rotation by bearings within a stationary housing of an apparatus, such as a sealless pump. In a first embodiment, the monitoring apparatus includes at least one magnet mounted on the circumference of the rotor and a plurality of hall effect devices which sense magnetic flux density as the rotor rotates to generate signals representative of radial and axial bearing wear as well as signals representative of the direction of rotation of the rotor. In a further embodiment, the monitoring apparatus includes magnetic material mounted in one or more locations around the rotor or entirely around the rotor and a plurality of hall effect devices and associated magnets mounted within the stationary housing and surrounding the rotor. The monitoring apparatus further includes a monitor for monitoring the amount of electrical power driving the pump as well as a monitor for monitoring the temperature of a containment shell which encloses the rotor within the sealless pump.
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Strecker Gerard R.
The Duriron Company, Inc.
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