Patents Assigned to Strabab Bau-AG
  • Apparatus for detecting changes of length in a medium employing different fiber length
    Patent number: 5148017
    Abstract: Apparatus for detecting changes of a medium along a measuring path in the medium, comprising several lightwave conductors arranged on a carrier, conveniently in a sleeve. Reflective ends of the light wave conductors are fixed at different distances along the measuring path. Type, extent, and location of longitudinal changes in the medium to be checked can be detected at any time by optical length measuring of the individual lightwave conductors by means of an optical rangefinder.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: September 15, 1992
    Assignee: Strabab Bau-AG
    Inventors: Reinhard Wolff, Hans-Joachim Miesseler