Method for utilizing magnetic field sensing means for detecting

Details Method for utilizing magnetic field sensing means for detecting Method for utilizing magnetic field sensing means for detecting

1985-05-16

1986-09-09

Kellogg, Arthur

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

65 50, 65 591, 65160, 324 52, 324117H, C03C 2702, G01R 3300, G01R 3108

Patent

active

046107100

ABSTRACT:
A method and apparatus for detecting discontinuities in electric conductor heating lines in automobile heated back lights is disclosed. The apparatus includes a "Hall effect" probe, a microprocessor, a display, a stepping motor drive, an optical scanner and associated circuitry. The method includes the steps of energizing the heating grid and moving a Hall effect probe in the vicinity of each conductor line. Any heater line having discontinuity will lack a detectable magnetic field.

REFERENCES:
patent: 3590371 (1971-06-01), Shaw, Jr.
patent: 4362991 (1982-12-01), Carbine
patent: 4395677 (1983-07-01), Petersdorf

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