APPARATUS TO MEASURE THE INTENSITY OF ULTRASONIC WAVES.

摘要

An apparatus to measure the intensity of ultrasonic waves is provided generated by a diaphragm includes a majority of vibrations in a deposit or cleaning container. The apparatus includes a structure that includes bars that correspond to each one of the hexahedron and a plurality of aluminum sheets spaced apart at predetermined intervals and perpendicular to four parallels of the structure. In accordance, the apparatus to measure the intensity of the ultrasonic waves can be used to clean an excess mask during the elaboration of a cathodic ray tube.