Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Patent
1997-07-30
2000-08-22
Ballato, Josie
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
For fault location
324127, 324752, 324758, G01R 3128
Patent
active
061078069
ABSTRACT:
A device (16) for sensing current flowing in a generally flat plate structure (10) contains a magnetic head (18) and signal processing circuitry (20). The magnetic head (a) senses changes in current-induced magnetic flux as the head is positioned over the plate structure and (b) provides a head output signal. The signal processing circuitry processes the head output signal to produce a data signal indicative of how much current appears to flow in the plate structure below the head. A driving voltage, which typically varies in a periodic manner to produce a characteristic signature, is applied to a primary conductor in the plate structure. A location sensor, typically formed with a light source (100) and a light sensor (102), detects the position of the magnetic head relative to the plate structure. A gas-cushion mechanism (80-98) controls the height of the head above the plate structure.
REFERENCES:
patent: 3753089 (1973-08-01), Gunn et al.
patent: 3882287 (1975-05-01), Simmonds
patent: 3992663 (1976-11-01), Seddick
patent: 4186338 (1980-01-01), Fichtenbaum
patent: 4829238 (1989-05-01), Goulette et al.
patent: 4922192 (1990-05-01), Gross
patent: 4992728 (1991-02-01), McCord
patent: 5006788 (1991-04-01), Goulette et al.
patent: 5073754 (1991-12-01), Henley
patent: 5164664 (1992-11-01), Soelkner
patent: 5218294 (1993-06-01), Soiferman
patent: 5309108 (1994-05-01), Maeda et al.
patent: 5406209 (1995-04-01), Johnson et al.
patent: 5424633 (1995-06-01), Soiferman
patent: 5462467 (1995-10-01), Macaulay et al.
patent: 5486753 (1996-01-01), Khazam et al.
patent: 5517110 (1996-05-01), Soiferman
patent: 5559389 (1996-09-01), Spindt et al.
patent: 5564959 (1996-10-01), Spindt et al.
patent: 5578930 (1996-11-01), Sheen
patent: 5714888 (1998-02-01), Naujoks
patent: 5821759 (1998-10-01), Scaman et al.
Resnick et al, Physics for Students of Science and Engineering (John Wiley & Sons, 2d ed.), 1963, pp. 780 & 781, (No month available).
Ballato Josie
Candescent Technologies Corporation
Meetin Ronald J.
Solis Jose M.
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