Optics: measuring and testing – Inspection of flaws or impurities
Patent
1998-11-25
2000-01-04
Font, Frank G.
Optics: measuring and testing
Inspection of flaws or impurities
356241, G01N 2100
Patent
active
06011617&
ABSTRACT:
A system for inspecting internal zones of a machine, such as an engine, comprises an observation device having an optical fiber endoscope, and distribution and guide means including a network of flexible guide sheaths placed in the machine to define a number of different inspection routes along which the endoscope can be guided from an aperture in the machine wall to various predetermined critical internal zones. Preferably the system includes first electrical means implanted in each guide sheath and co-operable with second electrical means secured to the endoscope in order to detect the position thereof in the network and to transmit the position to a monitoring device outside the machine for monitoring and assisting the guidance of the endoscope in the network.
REFERENCES:
patent: 3841764 (1974-10-01), Snell et al.
patent: 4640124 (1987-02-01), Diener et al.
patent: 4905666 (1990-03-01), Fukuda
"Borescope With Large Depth of Focus", NASA Tech Brief, NTIS Tech Notes, Nov. 1, 1990, pp. 993.
H. Huppmann, et al., "Moglichkeiten Und Grenzen Der Endoskopie Bei Grossrevisionen", VGB Kraftwerkstechnik, Vol. 57, No. 9, Sep. 1977, pp. 580-590.
Font Frank G.
Ratliff Reginald A.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
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