Temporal artery temperature detector
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United States of America Patent
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Mar 18, 2008
Grant Date -
Aug 5, 2004
app pub date -
Oct 14, 2003
filing date -
Sep 11, 1998
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Abstract
Body temperature measurements are obtained by scanning a thermal radiation sensor across the side of the forehead over the temporal artery. A peak temperature measurement is processed to compute an internal temperature of the body as a function of ambient temperature and the sensed surface temperature. The function includes a weighted difference of surface temperature and ambient temperature, the weighting being varied with target temperature through a minimum in the range of 96.degree. F. and 100.degree. F. The radiation sensor views the target surface through an emissivity compensating cup which is spaced from the skin by a circular lip of low thermal conductivity.
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