Patent ID: 6720715
Filing Date: 2004-04-13
Classification: B06B

Abstract:
A pulse sound transducer for an ultrasonic range and capable of receiving or transmitting sound signals, consisting essentially of:a block of piezoelectric material in the form of a single polygonal-section column having a shoulder individual to said column at one end thereof and forming a base, said shoulder having the same geometric configuration as said column and projecting uniformly outwardly perpendicular to each face of said column, said shoulder having a thickness a and a planar surface on a side of said shoulder opposite said column, said block having an overall height h and said column having a width c, said column and said shoulder forming a cell with all of its longitudinal cross sections being T-shaped and with base polarization perpendicular to said planar surface, the ratio of the thickness a to the width c to the overall height h being 1 to 4-6 to 10; and an electrode on said surface and another electrode on at least one of said faces of said column for electrical coupling to said block.