Sensing elements and methods for uniformly making individual sensing elements
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United States of America Patent
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Apr 16, 1996
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N/A
app pub date -
Nov 30, 1993
filing date -
Nov 30, 1993
priority date (Note) -
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Abstract
Sensing elements, useful in sensing the concentration of a gas, e.g., carbon dioxide, in a medium, e.g. blood, and methods for making such sensing elements are disclosed. In one embodiment, the method comprises continuously placing a sensing composition precursor in contact with a continuous web, forming a continuous sensing composition from the precursor, and applying a continuous opaque film to the sensing composition. A plurality of individual sensing elements are formed from this composite structure. These sensing elements, which each have very similar sensing characteristics, are placed in a sensor fixture for use.
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