Probe for measuring deviations from linearity

Details Probe for measuring deviations from linearity Probe for measuring deviations from linearity

1985-06-05

1987-03-24

Little, Willis

Geometrical instruments

Gauge

Straightness, flatness, or alignment

33542, 33DIG13, G01B 731

Patent

active

046514368

ABSTRACT:
Disclosed is an apparatus for measuring the deviation from a straight line of an elongated passage having opposing sides. The apparatus comprises a member sufficiently bendable and sufficiently large that it can pass through the passage in contact with both of the sides of the passage. Included is a means for measuring the amount that the member bends as it passes through the passage, means for moving the member through the passage between its opposing sides, and means to indicate, collect, and analyze the resultant electrical signals. The apparatus is most useful in measuring and locating deformations in the tubes of the steam generators of nuclear reactors.

REFERENCES:
patent: 2619728 (1952-12-01), Ely
patent: 3153286 (1964-10-01), Buisson
patent: 3496644 (1970-02-01), Short
patent: 3821856 (1974-07-01), Rapp
patent: 3983631 (1976-10-01), Dutzler
patent: 4087918 (1978-05-01), Schmid et al.
patent: 4235020 (1980-11-01), Davis et al.

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