| 摘要 |
A system for sensing spin speed and load conditions, including an out-of-balance condition, in a washing machine (10) is provided. The washing machine (10) includes a tub (34) inside a cabinet (12). The tub (34) encloses a washer basket (18) and an agitator (26) that spin about a predetermined spin axis (58) during a spin cycle. The OOB condition can be characterized by excursions, during the spin cycle, of the tub (34) which encloses the washer basket (18). The system includes a magnetic source (50) positioned on the agitator (26) for producing a predetermined magnetic field. A magnetic sensor (70) is positioned to be attached to a wall of the cabinet (12) and is coupled to the magnetic source (50) for supplying an output signal that varies as the agitator (26) rotates relative to the magnetic sensor (70). The system further includes a signal processor (100) coupled to the magnetic sensor (70) for receiving the output signal supplied by the magnetic sensor (70). |
