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...http://www.google.fr/patents/US5646538?utm_source=gb-gplus-shareBrevet US5646538 - Method and apparatus for fastener hole inspection with a capacitive probe
Method and apparatus for fastener hole inspection with a capacitive probe
