Title:
【発明の名称】ねじれ及び曲げのモード制御のための圧電ポリマー積層板
Document Type and Number:
Japanese Patent JPH02501252
Kind Code:
A
Abstract:
Laminates of polyvinylidene fluroride (PVDF) are employed as piezoelectric sensors and actuators which can sense and/or generate complex motions that include bending, stretching, and twisting components. The laminates can be attached directly to a mechanical structure whose motions are to be sensed and/or controlled. By skewing the principal axes of each of the lamina in the laminate with respect to one another, the laminate is responsive not only to bending motions, but to torsional motions as well. Surface electrodes are disposed on the top and bottom sides of each of the lamina to either sense voltage generated by the lamina in response to motion imparted thereto, or supply voltage to the lamina to induce motion therein. The shape of the surface electrode patterns can be varied to control the particular components of motion to which each of the lamina is responsive (e.g., bending modes). The polarization profile in each of the lamina can also be varied for this purpose. Mechanical oscillators and dampers can be constructed using the laminates.
Inventors:
Lee, Chi-Kun
Moon, francis, sea
Moon, francis, sea
Application Number:
JP50792388A
Publication Date:
April 26, 1990
Filing Date:
September 08, 1988
Export Citation:
Assignee:
Cornell Research Foundation, Inc.
International Classes:
H01L41/08; H01L41/09; H01L41/113; (IPC1-7): H01L41/08
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)