| 摘要 |
PROBLEM TO BE SOLVED: To provide a cable-like pressure sensor capable of detecting simultaneously both the pressure and humidity in addition to stable sensitivity irrelevant to humidity, while preventing environmental contamination caused by piezoelectric substance particles including lead used for conventional pressure sensors. SOLUTION: The pressure sensor capable of detecting simultaneously both the pressure and atmospheric humidity in addition to stable sensitivity irrelevant to humidity is achieved such that the pressure sensor is formed by a flexible pressure sensitive body 12 prepared in an inner electrode and on the surface of inner electrode 11, an outer electrode 13 prepared on the surface of flexible pressure sensitive body 12, and a coating 14 prepared on the surface of outer electrode 13, while are prepared both an oscillation detecting means 15 detecting voltages which is generated by the flexible pressure sensitive body 12 due to pressure and a humidity detecting means 16 detecting humidity by detecting anyone of capacitance, resistance or dielectric loss of the flexible pressure sensitive body 12. COPYRIGHT: (C)2007,JPO&INPIT |
