Glass surface coating detector

Details Glass surface coating detector Glass surface coating detector

1990-03-21

1992-07-21

Harvey, Jack B.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324679, 324681, 324663, G01R 2726

Patent

active

051326310

ABSTRACT:
Apparatus and method for detecting the presence and surface location of or the absence of an electrically conductive solar coating on a pane of glass. A capacitor is formed by placing a probe against one surface of the glass. The value of the capacitor is determined by the presence or absence of a conductive coating on the glass and by the location of any coating relative to the probe. Variations in the value of the capacitor are detected to selectively illuminate lights which indicate either the absence of a surface coating, the presence of a surface coating on a near surface or pane of the glass or the presence of a surface coating on a far surface or pane of the glass.

REFERENCES:
patent: 2616068 (1952-10-01), McDonald
patent: 3779378 (1973-12-01), Scherf
patent: 3801900 (1974-04-01), Szasz
patent: 3855527 (1974-12-01), Masopust, Jr.
patent: 4149231 (1979-04-01), Bukosky et al.
patent: 4307337 (1981-12-01), van den Berg et al.
patent: 4714877 (1987-12-01), Kong

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