Dual physical quantity sensor
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United States of America Patent
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May 21, 2013
Grant Date -
Dec 22, 2011
app pub date -
Jun 7, 2011
filing date -
Jun 17, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pressure sensor for detecting a pressure of a first object to be measured; a pressure sensor for detecting a pressure of a second object to be measured; a temperature sensor for detecting the temperature of the pressure sensor and the pressure sensor; a first correcting portion for executing a correction that eliminates a fluctuation portion, due to a change in temperature, from the detection signal of the pressure sensor, and for outputting the signal, after the correction, as a measurement signal for the first object to be measured; and a second correcting portion for executing a correction that eliminates a fluctuation portion, due to a change in temperature, from the detection signal of the pressure sensor, and for outputting the signal, after the correction, as a measurement signal for the second object to be measured; wherein the temperature sensor is integrated with the pressure sensor and the pressure sensor so as to be in a state of mutual contact.
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