Apparatus and method for detection of residual magnetic fields i

Details Apparatus and method for detection of residual magnetic fields i Apparatus and method for detection of residual magnetic fields i

1997-04-18

2000-04-18

Snow, Walter E.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

G01R 3134

Patent

active

060519878

ABSTRACT:
Apparatus and method to determine the intensity of a residual magnetic field that accumulates on the rotor of a dynamoelectric machine to identify stator and rotor anomalies. A dynamoelectric machine, such as an induction motor, has a rotor which becomes magnetized with use. This magnetism tends to skew inductance tests which are used to predict problems developing within the motor. The apparatus and method measure the accumulated magnetic field of a motor rotor, and adjust conventional inductance tests to yield more accurate results.

REFERENCES:
patent: 2644922 (1953-07-01), Sewell
patent: 3054947 (1962-09-01), Kass et al.
patent: 3967199 (1976-06-01), Knoop et al.
patent: 4527123 (1985-07-01), Gilman et al.
patent: 4658213 (1987-04-01), Finley
patent: 4864238 (1989-09-01), Seitz
patent: 5017877 (1991-05-01), Haus, Jr.
patent: 5045779 (1991-09-01), Herrick et al.
patent: 5420523 (1995-05-01), Walker et al.
patent: 5446389 (1995-08-01), Lenz

Affiliated with

Also associated with

Rating

Apparatus and method for detection of residual magnetic fields i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for detection of residual magnetic fields i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detection of residual magnetic fields i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2338853