Patent ID: 6106693
Filing Date: 2000-08-22
Classification: G01B,G01N

Abstract:
A method for measuring thickness of a coating inside a hollow body having an opening, said method comprising the steps of:(a) attaching a coating thickness measurement probe to one end of an extender arm, wherein a central axis of said probe and a central axis of said extender arm form an angle, said extender arm comprising:(i) an elongated, substantially rigid body portion;(ii) a flexible portion connected to one end of said substantially rigid body portion;(iii) a coating measurement probe holder portion connected to an end of said flexible portion opposite said substantially rigid body portion; and(iv) a pull connected at one end thereof to said substantially rigid body portion and connected at an opposite end thereof to said coating measurement probe holder portion for adjusting said angle;(b) extending said probe inside the hollow body through the opening;(c) adjusting said angle;(d) contacting the probe with the coating inside the hollow body; and(e) measuring the thickness of the coating.