Patents by Inventor Edward N. Lide

Edward N. Lide has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for fastener hole inspection with a capacitive probe
    Patent number: 5646538
    Abstract: A computer-based method and apparatus for fastener hole inspection including a capacitive probe with a plurality of sensor elements, means for grounding the faster hole, and an electronics unit electrically connected to the probe for sequencially charging one of the plurality of sensor elements while applying a guard potential to the remaining sensor elements and adjacent electrical components to eliminate residual capactitances. A profile of the fastener hole is generated by evaluating, through a series resistor, the discharge waveforms of the plurality of sensor elements by converting the capacitance measurements obtained to distance measurements. A centering algorithm is employed to compensate for malalignment of the capacitive probe in the fastener hole.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: July 8, 1997
    Assignee: Measurement Systems, Inc.
    Inventors: Edward N. Lide, Samuel R. Glidewell