HIGHLY SENSITIVE SENSOR CABLE

PROBLEM TO BE SOLVED: To solve the problem in the conventional cable that: larger outside diameter, less flexibility, and insufficient operability in cable-laying because multilayered with piezoelectric body for high power outputting; the high price allows only for special use because of using expensive piezoelectric body too much. SOLUTION: The typical example of the sensor cable is that the piezoelectric body is provided on the central conductor, the outer conductor is wound thereon, and the outer jacket is formed on the outer conductor. Herein, both of between the central conductor-piezoelectric body and between the piezoelectric body-outer conductor or either of them adhesive layers are provided, therefore adhesion between the central conductor and the piezoelectric body is enhanced, the transfer efficiency of electric energy generated by the external force to the conductor is enhanced, the output power is increased and at the same time the deformation of the piezoelectric body is prevented. For the highly sensitive sensor cable which is prevented from being in contact with the central conductor and the outer conductor, the piezoelectric body can be made of a thin film, also can be made inexpensive. COPYRIGHT: (C)2006,JPO&NCIPI