Radiant energy – Radiant energy generation and sources – Plural radiation sources
Patent
1988-12-19
1989-11-28
Berman, Jack I.
Radiant energy
Radiant energy generation and sources
Plural radiation sources
2504931, 2733481, H01K 114
Patent
active
048839710
ABSTRACT:
A simulating device or model comprises a plurality of layers of fiber reinforced composite material, including two adjacent electrically insulative layers (44). An elongated conductor (30) is interposed between the two layers (44). The conductor (30) is arranged in a continuous winding pattern, such as a serpentine pattern formed by folding resistance heating ribbon to form adjacent spaced regions or legs (34) of the continuous conductor (30). The composite material and conductor (30) form an integral structure and simulate the three dimensional shape of an object whose infrared signature is to be simulated. The conductor (30) is positioned at a sufficient depth relative to an outer surface of the structure, and the legs (34) of the conductor (30) are sufficiently close to each other, to produce a substantially continuous temperature gradient on the outer surface when the conductor (30) is heated by supplying electric power thereto. The heated model is viewed at a plurality of angles with an infrared detector (2) to determine the infrared signature at each angle.
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Berman Jack I.
Pauly Joan H.
The Boeing Company
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