| 摘要 |
PROBLEM TO BE SOLVED: To provide a new gas discharging sensor with a new permeable body, the gas discharging sensor performing highly accurate pressure measurement with high sensitivity and enabling the manufacturing cost thereof to be reduced. SOLUTION: The gas discharging sensor has: two pick-up conduit pipes 26, 28 each connected to a pressure sensor and opened to a duct 20 through which gas flows; and a permeable body 40 placed in an external body 12 via a bush 16 so as to extend between the conduit pipes along the axis. The permeable body 40 has a center part with a cross section in a shape complementary with the cross section of the duct 20. The center part has a plurality of slots 42b, 42c radially extended centering on the axis A1 so as to radially open on the outside surface. The slots are extended axially over the whole length of the permeable body 40. The slots has a plurality of slot groups with different depth. COPYRIGHT: (C)2008,JPO&INPIT
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