RAPID INSPECTION OF LIGHTNING STRIKE PROTECTION SYSTEMS PRIOR TO INSTALLING FASTENERS

摘要

Methods and systems are disclosed for drilling counter sink (130) fastener (140) holes in composite materials (120) with conductive foil lightning strike protection systems (110). Initially a non-destructive depth detector is scanned over a prospective fastener hole location. Then the depth of a conductive foil (120) below a surface is detected. When the detected depth is less than a predetermined depth, a signal that indicates that a countersink fastener hole may be drilled is output. When the detected depth is greater than a predetermined depth, a signal that indicates that a countersink fastener hole may not be drilled is output.