| 摘要 |
PCT No. PCT/EP92/02851 Sec. 371 Date Jun. 8, 1993 Sec. 102(e) Date Jun. 8, 1993 PCT Filed Dec. 10, 1992 PCT Pub. No. WO93/12028 PCT Pub. Date Jun. 24, 1993.A process and device for the cleaning of the sensor surface of a yarn monitoring system used on spinning machines to monitor the yarn and/or the yarn quality. The yarn monitoring system is positioned without contact with the running yarn within the traversing area between draw-off roller and friction roller or below the draw-off roller. Cleaning of the sensor surfaces is carried out during the running of the yarn, at the reversal points of the yarn traversing movement, for the period of contact or nearness between the yarn and the limit of the yarn monitoring system until removal of the running yarn.
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