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    • 59. 发明授权
    • Gas pressure sensor with temperature compensation
    • 带温度补偿的气体压力传感器
    • US07739916B2
    • 2010-06-22
    • US12423804
    • 2009-04-14
    • Kia SilverbrookSamuel George Mallinson
    • Kia SilverbrookSamuel George Mallinson
    • G01L9/12
    • G01L9/0075B60C23/0408G01L9/0072G01L9/0073G01L9/125G01L13/00G01L17/00G01L19/04
    • A pressure sensor for sensing a fluid pressure comprising: a first chamber including a first conductive membrane, wherein a fluid is sealed within the first chamber at a reference pressure such that the first conductive membrane deflects from pressure differences between the reference and the fluid pressure; a second chamber including a second conductive membrane sealed from the fluid pressure, wherein the second membrane deflects in response to a change in temperature which the pressure sensor is exposed thereto; and a circuit in electrical communication with the first and second conductive membrane, the circuit being configured to obtain a first and second signal from the first and second conductive membranes respectively, the first and second signals being indicative of the deflection of the first and second conductive membranes, wherein the circuit adjusts the first signal by the second signal to generate an output signal indicative of the fluid pressure.
    • 一种用于感测流体压力的压力传感器,包括:包括第一导电膜的第一腔室,其中流体以参考压力密封在所述第一腔室内,使得所述第一导电薄膜偏离所述基准压力和所述流体压力之间的压力差; 第二室,包括从流体压力密封的第二导电膜,其中第二膜响应于压力传感器暴露于其中的温度变化而偏转; 以及与所述第一和第二导电膜电连通的电路,所述电路被配置为分别从所述第一和第二导电膜获得第一和第二信号,所述第一和第二信号指示所述第一和第二导电膜的偏转 膜,其中所述电路通过所述第二信号调整所述第一信号,以产生指示所述流体压力的输出信号。