Patent ID: 6603242
Filing Date: 2003-08-05
Classification: G01H,H01L,Y10S

Abstract:
A piezoelectric transducer apparatus comprising:at least one piezoelectric unit each having a piezoelectric block and at least one pair of electrodes, first electrode of said at least one pair of electrodes being adhered to a first surface of said piezoelectric block, and second electrode of said at least one pair of electrodes being adhered to a second surface of said piezoelectric block opposite to said first surface of said piezoelectric block; and a body structure, each of said at least one piezoelectric unit being adhered to the surface of said body structure with one of said at least one pair of electrodes exposed externally, wherein said apparatus having a generalized sensor equation which can be modeled in a fourth-order partial differential equation mathematical system, and at least one of said electrodes or said piezoelectric block of each of said at least one piezoelectric unit having a shape matched to a desired body strain pattern existing in said body structure wherein said electrode of each of said at least one piezoelectric unit exciting a strain pattern in said body structure that is the same as said desired body strain pattern.