WATER LEVEL SENSOR
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United States of America Patent
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Issued Date -
Feb 23, 2017
app pub date -
Mar 4, 2014
filing date -
Dec 3, 2013
priority date (Note) -
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Abstract
It is aimed to provide an inexpensive water level sensor capable of improving accuracy. The water level sensor includes a heat generating body 9 operable to generate heat by an electricity, a thermocouple 12 having a temperature measurement point 123 arranged adjacent to the heat generating body 9, a protection tube 13 for housing these heat generating body 9 and thermocouple 12 and an insulating material 14 filled in this protection tube. The heat generating body 9 includes a platinum resistive element 9 as a heat source.
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