| 摘要 |
PROBLEM TO BE SOLVED: To prevent dew condensate in a pressure detecting chamber from flowing into a pressure introducing pipe, in a pressure sensor provided with the pressure detecting chamber for storing a sensor element for detecting pressure, and a connecting tube for introducing pressure from a measured medium into the pressure detecting chamber. SOLUTION: This pressure sensor 100 is provided with an air chamber 7 as a pressure detecting chamber for storing an element part 2 for detecting a pressure signal, and a connecting tube 3a extended to the downside of the air chamber 7 while communicating with an opening hole 7a provided in the bottom of the chamber 7. A cylindrical protrusion 3c projected upwards from the bottom of the air chamber 7 is formed along the entire circumference of the hole 7a in the bottom of the chamber 7, and the protrusion 3c functions as a weir part for damming dew condensate generated in the air chamber 7 in the periphery of the hole 7a.
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