G - Physics – 01 – B
Patent
G - Physics
01
B
324/44
G01B 7/28 (2006.01) G01B 7/34 (2006.01)
Patent
CA 1320252
ABSTRACT OF THE DISCLOSURE An apparatus for use in measuring the straightness of a tube includes a flat support surface made of electrically insulative material and a plurality of strips of electrically conductive material oriented parallel to one another on the support surface. The strips are substantially uniform in shape and thickness, and a layer of dielectric material covers each of the strips of conductive material. The layers of dielectric material are of uniform thickness along the length of the strips and are adapted to support a tube to be tested for straightness so that a capacitor is formed by each of the strips and the tube. An oscillators is provided for generating pulses each having a pulse width proportional to the capacitance between at least one of the strips and the tube and representative of the size of gap between the at least one strip and the tube. These pulse widths are measured and compared with a preset value representative of a limit pulse width in order to determine the acceptability of the tube straightness. A method of measuring the straight- ness of a tube by measuring capacitances along the length of the tube as it rolls along a support surface is also disclosed.
606117
Gowling Lafleur Henderson Llp
Sandvik Special Metals Corp.
LandOfFree
Measuring the straightness of tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Measuring the straightness of tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring the straightness of tubes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1237705