Miniature air gap inspection crawler

Details Miniature air gap inspection crawler Miniature air gap inspection crawler

1995-12-05

1997-07-22

Raevis, Robert

Measuring and testing

Inspecting

H04N 718

Patent

active

056505795

ABSTRACT:
A miniature air gap inspection crawler for in situ inspection of the generator field and stator core of a generator. The crawler has a collapsed position for insertion into the air gap of a generator and an expanded position for pressing drive modules of the crawler against the generator field and stator core. Cameras mounted on the crawler provide video images of the field and core.

REFERENCES:
patent: 4194218 (1980-03-01), Hasegawa
patent: 4560931 (1985-12-01), Murakami et al.
patent: 4569230 (1986-02-01), Asty et al.
patent: 4722001 (1988-01-01), Rohrich et al.
patent: 5481929 (1996-01-01), Kohlert et al.
"A Compendium of Robotic Equipment Used in Hazardous Enviroments" EPRI NP-6697, Project 2519-1, Final Report, Feb. 1990, pp. 2-28/29, 5-14/15, 5-22/23, 5-26/27, 5-30/31.

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