Patents Assigned to Baker-Hughes
  • Angular displacement sensor
    Patent number: 4752732
    Abstract: A rotational displacement sensor includes a pair of coils stationarily mounted adjacent a rotatable cam formed of a metallic material. The coils are energized by high frequency alternating current. A differential amplifier is connected to the coils such that the output of the amplifier is linearly proportional to the rotational angular displacement of the cam relative to the coils.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: June 21, 1988
    Assignee: Baker-Hughes
    Inventors: Michael M. Van Schoiack, Patrick H. Mawet