Platinum temperature sensor
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United States of America Patent
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Apr 7, 1998
Grant Date -
N/A
app pub date -
Feb 14, 1996
filing date -
Feb 15, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A platinum temperature sensor showing excellent sensitivity to heat. The sensor comprises an insulating substrate having a support portion at one end of the substrate. A heat-generating portion is formed by a platinum film circuit at the other end of the substrate. A coating made from a material having a low thermal conductivity is formed on the support portion of the insulating substrate to suppress dissipation of heat from the support portion. A first heat-insulating gap is created between an end portion of the platinum film circuit and the heat-generating portion. A second heat-insulating gap is created between the platinum film circuit and the coating.
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