Ambient and perfusion normalized temperature detector
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United States of America Patent
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Jan 1, 2008
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N/A
app pub date -
Nov 14, 2005
filing date -
Jun 24, 1997
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Abstract
A body temperature detector is particularly suited to axillary temperature measurements of adults. The radiation sensor views a target surface area of the body and electronics compute an internal temperature of the body as a function of ambient temperature and sensed surface temperature. The function includes a weighted difference of surface temperature and ambient temperature, the weighting being varied with target temperature to account for varying perfusion rate. Preferably, the coefficient varies from a normal of about 0.13 through a range to include 0.09. The ambient temperature used in the function is assumed at about 80.degree. F. but modified with detector temperature weighted by 20%.
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