Patent ID: 6272762
Filing Date: 2001-08-14
Classification: G01B

Abstract:
A method for measuring ovality of a circumferentially deformable cylindrical element comprising the steps of:positioning said deformable cylindrical element in an ovality measurement tool comprising a cylindrical element support having at least two contact elements, each said contact element having a cylindrical contact point end, and an indicator means having one sensing element, said sensing element having a sensing element end movable radially with respect to said deformable cylindrical element and connected to said cylindrical element support and bisecting an angle formed by said contact point ends and a point of connection of said sensing element to said cylindrical element support, whereby said deformable cylindrical element simultaneously contacts said contact point ends and said sensing element end;traversing at least 180.degree. of the circumference of said deformable cylindrical element with said sensing element end;measuring a radial displacement of said sensing element end during said traversal of said circumference of said deformable cylindrical element; andconverting said radial displacement measurement to a percent ovality reading.