To provide a pressure-measuring system which extends the service life of a pressure sensor.
A measuring passage 70 is provided, which branches off from a humid passage 52 through which a humid gas flows to reach the pressure sensor. The measuring passage 70 is provided with a continuously rising inclination, from a starting point 70a to the pressure sensor 59. Water W, containing a humid gas, is therefore condenses midway in the measuring passage 70, and the condensed water W flows downward to the humid passage 52 along the inclination of the measuring passage 70. Thereby, the upper end of the measuring passage 70, in which the pressure sensor 59 is placed, becomes more dehumidified than the lower end, resulting in the prolongation of the service life of the pressure sensor 59.
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu