Boots – shoes – and leggings
Patent
1985-06-24
1987-03-03
Eisenzopf, Reinhard J.
Boots, shoes, and leggings
324228, 324259, 324227, 364571, G06F 1535, G01R 3324, G01N 2772
Patent
active
046480412
ABSTRACT:
An eddy current magnetic field effects measurement apparatus employs, a reference sensor located so that it measures an applied field and any environmental fields but does not measure eddy current effects. Then an estimate(s) of the applied field at the locus of a plurality of measurement sensors is constructed and stored. Next, a conductive object or material to be measured is placed in the applied field in the vicinity of the plurality of measurement sensors away from the reference sensor and measurements are made of the applied field, any environmental fields and any fields due to the effects of eddy currents induced into the conductive object or material. Finally, the aforementioned stored estimate(s) are used to compensate the applied field at the locus of the plurality of measurement sensors so that the eddy current magnetic field effects due to the placement of the conductive object or material can be observed on a keyboard/display or printed via a printer/plotter.
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Phadke et al., "A Microcomputer Based Ultra-High-Speed Distance Relay: Field Tests", IEEE Power Engineering Meet, 7/1980, pp. 1-8.
Schumacher et al. "Computerized Data Acquisition & Analysis System", IEEE: Power Engineering Society Summer Meeting (Conf.), 7/1978, pp. 1-5.
Edmonds Warren S.
Eisenzopf Reinhard J.
The United States of America as represented by the Secretary of
Walden Kenneth E.
Wein Frederick A.
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