| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fluid pressure sensor capable of precisely measuring the value of fluid for a long period even under acondition that dew condensation occurs inside the sensor. SOLUTION: The fluid pressure sensor is provided with flexible thin film 6 receiving fluid pressure on the front surface, a pressure receiving board 10 placed along the rear surface of the flexible thin film 6, and an electric resistor connected to the pressure receiving part 10. The electric resistor changes its electric resistance according to the distortion generated when the pressure receiving board 10 bends. The fluid pressure sensor detects fluid pressure based on the change of the resistance value of the electric resistor. Moisture absorbing members 8, 9 absorbing moisture are placed behind the flexible thin film 6 in the pressure sensor.</p> |
