Abstract: An iontophoretic device is disclosed having a plurality of current regulators.

Abstract: The present invention is directed to a method and apparatus for an electrotherapeutic system including a first and second electrode. Each electrode includes a respective resistance wherein during operation of the electrotherapeutic system, an electrochemical reaction involving one or both of the electrodes varies the respective resistance of at least one of the electrodes.

Abstract: Ultrasonic inspection apparatus is described comprising a linear array of contact ultrasonic transducers mounted on a carriage which moves over a surface to be inspected such that a relatively wide path is inspected as the carriage traverses the test surface. The contact transducers arranged in a transmit-receive-transmit mode detect variations in surface sound wave velocity resulting from impact damage to the surface being inspected. When a damaged area exceeding a predetermined area is detected, one of a plurality of indicator lamps associated with the receive transducer is momentarily energized. In addition, when a defect is detected by any one of the receive transducers, a master indicator lamp is energized for a relatively long period of time in order to signal the operator that one of the transducers in the array has sensed a defect.