Patents Assigned to Amcon, Inc.
  • Precision measuring gauge having sonic delay line with free-standing mode converter armature
    Patent number: 4803427
    Abstract: A mode converter for a distance measuring device having a sonic delay line with a permanent magnet movable along same, the converter having a free-standing magnetostrictive armature with one end attached to the delay line and the other end terminating dampinglessly within the usual coil. The armature length and shape are such that the longitudinal stress wave initiated by an electrical pulse in the coil strengthens the mechanical pulse applied to the delay line.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: February 7, 1989
    Assignee: Amcon, Inc.
    Inventors: Roy G. Mason, Leif Andreasen