Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1989-06-02
1991-04-09
Snow, Walter E.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324225, G01N 2782, G01N 2772, G01R 3300, G01R 3312
Patent
active
050068016
ABSTRACT:
The present invention is an inspection instrument of the type which reacts to induced eddy currents in a workpiece to be inspected and includes a probe having at least a first probe coil. The instrument further includes a bridge circuit having the first probe coil connected in a first bridge arm. The bridge circuit also has input and output terminals. Connecting cable connects the instrument to a remote signal interpretation unit, and individual buffers connected between each of the output terminals and the cable isolate the capacitive of the cable from the bridge circuit.
REFERENCES:
patent: 3050678 (1962-08-01), Datt
patent: 3056081 (1962-09-01), Hochschild
patent: 3444465 (1969-05-01), Teixeira
patent: 3487298 (1969-12-01), Gill et al.
patent: 3732726 (1973-05-01), Ferber
patent: 3825822 (1974-07-01), Forster
patent: 3886793 (1975-06-01), Cramer et al.
patent: 4074186 (1978-02-01), Flaherty
patent: 4088953 (1978-05-01), Sarian
patent: 4109201 (1978-08-01), Pigeon et al.
patent: 4167878 (1979-09-01), Bottcher et al.
patent: 4176555 (1979-12-01), Doorman
patent: 4335352 (1982-06-01), Stephen
patent: 4412177 (1983-10-01), Petrini et al.
patent: 4414508 (1983-11-01), Davis et al.
patent: 4449411 (1984-05-01), Suhr et al.
patent: 4460869 (1984-07-01), Buser et al.
patent: 4528856 (1985-07-01), Junker et al.
patent: 4564810 (1986-01-01), Geithman et al.
patent: 4591784 (1986-05-01), Kolitsch et al.
patent: 4659990 (1987-04-01), Torre
patent: 4673877 (1987-06-01), Sakamoto et al.
patent: 4745809 (1988-05-01), Collins et al.
patent: 4808926 (1989-02-01), Graham et al.
patent: 4856337 (1989-08-01), Metala et al.
patent: 4862079 (1989-08-01), Chickering et al.
Hedengren, McCary, Young, "Eddy Current Probe Evaluation: Experimental Measurements and System Interaction", Review of Progress in Quantitative Nondestructive Evaluation, vol. 8A, Plenum Publishing Corporation, 12/1989, pp. 975-983.
Standard Handbook for Electrical Engineers, Eleventh Edition, McGraw-Hill Book Company, 12/1978, pp. 3-48-3-57.
Beulick John S.
Davis Jr. James C.
General Electric Company
Snow Walter E.
Webb II Paul R.
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