| 20110309063 | WELDING WIRE FEEDER WITH MAGNETIC ROTATIONAL SPEED SENSOR - A welding wire feeder includes a magnetic rotational sensor system configured to measure a parameter indicative of a wire feed speed of the welding wire feeder. The magnetic rotational sensor system includes a dipole magnet coupled to a gear driven by an electric motor of the welding wire feeder and a magnetic sensor disposed adjacent to the dipole magnet and configured to measure an angular position of the dipole magnet. The magnetic rotational sensor system also includes a processor configured to receive signals of the angular position measured by the magnetic sensor and to calculate a wire feed speed of the welding wire feeder based upon the angular position signals and configuration parameters of the welding wire feeder. | 12-22-2011 |
