Patent attributes
A pressure sensor apparatus having capability of preventing invasion of foreign materials into a pressure sensor with a simplified structure includes the pressure sensor (1) for detecting pressure of a fluid for measurement, and a sensor container (2) for housing therein the pressure sensor (1). The sensor container (2) is connected to a pressure intake port (13) formed in a pipe (12) through which the fluid for measurement flows. The sensor container (2) includes a wall (17) for defining a second compartment (16) located in opposition to the pressure intake port (13) and a first compartment (15) having a pressure introducing port (14) for introducing the fluid for measurement extracted through the pressure intake port (13) to the pressure sensor (1).