G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 7/02 (2006.01) B21B 38/00 (2006.01) G05B 23/02 (2006.01) B21B 28/00 (2006.01)
Patent
CA 2434735
This invention is a method that uses the electric signal drawn from a vibration sensor containing a piezoelectric crystal over a short period of time to generate a value. There is a reading taken when the spindle is loaded and at a steady state (same position relative to location of load in machine), and another taken when the spindle is unloaded and at steady state. Based on observations, a good spindle shows more energy when loaded verses unloaded. The opposite relationship is characteristic of a bad spindle.
Hunt Kevin Guy
Lindsay William
Dofasco Inc.
Gowling Lafleur Henderson Llp
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