| 摘要 |
Pressure sensing device having a housing (12) with a bottom wall (14) and interior surface (16) and having upstanding edge wall (18) around the periphery of said housing (12). A layer (22) supports a pressure sensing element (30) and its circuitry. A porous gas permeable support layer (40) overlies said pressure sensing element (30) and includes a gas chamber (42) adjacent to the pressure sensing element (30). A gas permeable membrane (50) is supported on said support layer (40). The elements are sealed with respect to the housing as is wire or cable (32) leading from the pressure sensing element (30) to instrumentation remote from the sensing device for readout of measurements by the sensor device (10).
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