抄録
This paper presents a new viscous sensor using piezoelectric fiber matrices. The produced viscous sensor is the structure which embedded the piezo electric fiber containing a metal core in aluminum matrices. When aluminum covers a piezo electric fiber, the sensor part is mechanically protected from the outside. Moreover, the aluminum cover is used also as an electrode. Voltage is applied between an internal core and aluminum, a tip is vibrated, and viscosity is calculated from change of resonance frequency. By embedding into aluminum, it is possible to conquer the weakness of ceramics and to remove an electric noise. Therefore, measurement of the viscosity in inferior environment is also possible. The application to monitoring of the viscosity of the engine oil of an automobile is expected.
