Method for producing a superior longitudinal vibrator

A method for producing a superior longitudinal vibrator comprising the steps of:

• providing a plurality of piezoelectric ceramic sheets of substantially uniform thickness length and width;
• coating at least one major surface of each ceramic sheet with a conductive material;
• polarizing each coated sheet in the thickness direction;
• bonding all of said sheets together to fabricate a matrix wherein adjacent ceramic sheets in opposite polarizing directions are next to one another;
• bonding a film-like anti-abrasion member upon the surface of one of the exposed ceramic sheets of said matrix;
• cutting the matrix to form a plurality of individual piezoelectric laminates so that the conductive coatings are exposed along both longitudinal sides of each laminate;
• electrically insulating alternating ones of the conductive coatings exposed along one longitudinal side of each of said piezoelectric laminates;
• electrically insulating the conductive coatings exposed along the opposite longitudinal side of each of said piezoelectric laminates wherein the alternating ones of the conductive coatings being electrically insulated are interspersed with the alternating ones of the conductive coatings being insulated on the opposite side of said piezoelectric laminate;
• and
• applying a conductive coating to substantially the entire surface of both longitudinal sides of each piezoelectric laminate whereby each of said conductive coatings is electrically connected with conductive coatings between said ceramic sheets which extend to the longitudinal side of the associated conductive coating.