SEPARATE-COMBINED TRANSDUCER FOR ULTRASONIC TESTING Russian patent published in 1994 - IPC

FIELD: ultrasonic testing of articles of various materials. SUBSTANCE: separate-combined transducer for ultrasonic testing has two piezoelectric elements, two prisms with through holes and inserts in form of bodies of revolution located in holes and conjugated with them by side surface, mechanism for axial displacement on inserts in holes. Prism holes have common axis and conical shape with diameter increasing in direction of nearest side surfaces of prism. Inserts are made for turning relative to axis of holes and motion over holes. Mechanism for insert axial displacement in holes is located between large bases of inserts. Piezoelectric elements are arranged inside inserts. Mechanism for insert axial displacement may be made in form of spring compressed by inserts that allows change of angles of introduction and reception of transducer. EFFECT: higher efficiency. 2 cl, 1 dwg