ULTRASONIC DEVICE FOR PRERENTING AS CALE INUERTABE

摘要

The supersonic apparatus is for preventing the scale from being formed on the inner surface of a domestic heat exchanger. The efficiency and reliability can be enhanced by eliminating the distortions of various forms of electrical signals. It comprises a nonlinear compensation inductance connected in series between a center point of an electric power unit output terminal and a reservoir capacitor; and the winding of a magnetic distortion transducer connected between the electric power unit output and a relay input of a thyristor current unit.