Blackbody fired on silica fiber
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United States of America Patent
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Nov 17, 1992
Grant Date -
N/A
app pub date -
May 20, 1991
filing date -
May 20, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A precious metal blackbody radiator fired on a silica or sapphire fiber is disclosed for use in an optical fiber thermometer. The fiber can be coated or uncoated. If a coated fiber is used, the fiber can be a silica or sapphire fiber, protected with an outer metallic coating, such as platinum, which may be electroplated over a thin electrically conductive film coated on the fiber. The blackbody radiator may be mounted on a first end of the fiber, and the fiber may have a second end terminating at a receptor apparatus. The blackbody may comprise semisolid platinum paste placed on a coated or uncoated fiber, dried, and fired over a flame or in a high-temperature furnace. The firing step causes strong adhesion of the blackbody to the fiber.
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