Radiant energy – Infrared-to-visible imaging
Patent
1990-01-30
1992-02-18
Hannaher, Constantine
Radiant energy
Infrared-to-visible imaging
250340, 250342, G01J 520
Patent
active
050897004
ABSTRACT:
A method of nondestructively identifying regions "R" of high density in a substrate (10) of a bonded matrix of carbon fibers by resistively heating the substrate and taking an infrared image of the heated substrate. Terminals 12, 14, 16 and 18 are connected to a power supply 26 by wires 22 and cable 24 of which they are a part, to effect the heating.
REFERENCES:
patent: 3868508 (1975-02-01), Lloyd
"Barnes Infrared Camera", Defense & Space Division, Barnes Engineering Company, 1963, pp. 1-12.
Sunshine et al., "Direct Observation of the Effect of Solder Voids on the Current Uniformity of Power Transistors", IEEE Transactions on Electron Devices, 1975, pp. 61-62.
Weight et al., "Thermography Testing of Production P.C. Boards", Electronic Packaging & Production, 1981, pp. 69-73.
White et al., "Observation of Carrier Densities in Silicon Devices by Infrared Emissions", J. Phys: E. Sci. Instru., vol. 10, pp. 817-825, 1977.
Clark John G.
Sapia Mark A.
Amdata, Inc.
Glick Edward J.
Hannaher Constantine
Mulholland John H.
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