Probe for measuring deviations from linearity
First Claim
1. Apparatus for measuring the deviation from a straight line of an elongated passage having opposite sides comprisinga member sufficiently large that it can pass through said passage in contact with said opposing sides,said member being bendable along two axes 90 degrees to each other, both perpendicular to the direction of movement of said member;
- means for measuring the amount that said member bends as it passes through said passage; and
means for moving said member through said passage between said opposing sides.
1 Assignment
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Accused Products
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.
46 Citations
15 Claims
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1. Apparatus for measuring the deviation from a straight line of an elongated passage having opposite sides comprising
a member sufficiently large that it can pass through said passage in contact with said opposing sides,said member being bendable along two axes 90 degrees to each other, both perpendicular to the direction of movement of said member; -
means for measuring the amount that said member bends as it passes through said passage; and means for moving said member through said passage between said opposing sides. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for measuring the deviation of a tube from linearity comprising
(A) a probe elongated in the direction of said tube, said probe comprising (1) two sections, each having an axis perpendicular to said direction along which each of said sections is most easily flexible, each of said axes being perpendicular to the other of said axes; - and
(2) three less flexible sections alternating with said two sections, said three sections being in slid able contact with the inside of said tube; (B) means mounted on said member for measuring the amount of bending along each said axes of said two sections; (C) means for driving said probe through said tube; (D) means for determining the position of said probe in said tube; and (E) means for determining the orientation of said probe in said tube. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification