Snecma

Snecma Services

Isabelle Bonningue

Jean-Claude Lemoal

John Le Quellec

Michel Baccella

Jean Rovegno

John LeQuellec

John Lequellec

Apparatus for searching for and detecting defects on parts that are substantially inaccessible, being located behind a wall, the apparatus comprising a first endoscope for illumination in visible light and for observation, the first endoscope and pipes for feeding and spraying penetration test substances being housed together in a rod which can be passed through an orifice in the wall in order to examine a part, the apparatus further comprising a second endoscope independent of the first endoscope and the rod for illuminating in ultraviolet light and for observing the portion of the part that has been treated by the penetration test substances.

Apparatus for searching for and detecting defects in parts by endoscopy

An endoscope with deflected distal viewing, comprises a rigid tube containing observation means, themselves comprising a distal deflector prism having a viewing axis that is inclined relative to the axis of the tube, and ultraviolet light guide means housed in the tube and opening out at their distal end onto a prism for deflecting the illuminating light beam in a direction that is substantially parallel to the viewing axis. The invention applies in particular to inspecting parts by the penetration test technique in the aviation field.

Endoscope with deflected distal viewing

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Soisy Sur Seine, France

Isabelle Bonningue