Heating device using photodetector to detect temperature and method for protecting the same
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United States of America Patent
Stats
-
Jun 28, 2016
Grant Date -
Jul 23, 2015
app pub date -
Jan 21, 2014
filing date -
Jan 21, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A heating device includes a housing having a flow channel, a heater disposed in the flow channel, an optical rod, a light guider and a photodetector. The optical rod has a transparent body, a first end portion, and a second end portion located inside the housing. The light guider is provided at the second end portion for guiding lights emitted by the heater toward the first end portion. The photodetector is located around the first end portion and faces the second end portion for indirectly receiving the lights emitted by the heater to the light guider through the transparent body. The temperature of the heater can be measured efficiently and timely by using the photodetector having a high responding speed, such that an overheat or damage of the heater can be prevented by controlling the heater based on the measured temperature.
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Family
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Cited Art Landscape
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