Patents Assigned to Institut Superieur d'Electronique du Nord (ISEN)
  • Method and apparatus for supplying electric power to a vibration generator transducer
    Patent number: 4748365
    Abstract: The invention relates to a method for supplying electric power to a transducer for generating sonic or ultrasonic vibrations.It is characterized in that in the automatic control stage, the control device (11) is kept within said command and control loop and, by means of its processor and as a function of the data furnished to this processor and in particular data emitted by the analyisis means (6-8) furnishing the phase displacement (D.sub.f) and the direction (S.sub.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: May 31, 1988
    Assignee: Institut Superieur d'Electronique du Nord (ISEN)
    Inventors: Jean-Pierre Poupaert, Bernard Thirion