The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2002
Filed:
Mar. 15, 2000
Dieter Sporn, Wuerzburg, DE;
Winfried Watzka, Wuerzburg, DE;
Andreas Schönecker, Freital, DE;
Lutz Seffner, Dresden, DE;
Kord Pannkoke, Bremen, DE;
Abstract
The present invention relates to an electromechanical converter, a method of manufacturing same, as well as to a composite system including the electromechanical converter. The inventive electromechanical converter consists of at least one elongate fiber ( ) made of a piezoelectric material. At least two electrodes ( ) are provided at mutually spaced locations on the fiber ( ) for subjecting the fiber to an electrical field. The electrodes ( ) are in direct contact with the fiber ( ) and enclose the fiber ( ) partly or completely. The direct contact between the electrode and the fiber permits the optimum introduction of the electrical field into the fiber such that lower electrical potentials on the electrodes are sufficient for polarising the fiber. Another advantage resides in the aspect that the electrode is in direct contact with the fiber not only at one point but over part of the periphery of the fiber. This results in a further enhancement of the introduction of the electrical field.