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1.
公开(公告)号:US5449393A
公开(公告)日:1995-09-12
申请号:US194379
申请日:1994-02-08
IPC分类号: C03B37/027 , C03B37/025 , C03B37/07 , G01M11/08 , G02B6/00
CPC分类号: C03B37/0253 , G01M11/088 , C03B2205/40
摘要: A method and apparatus are provided for detecting irregular portions of an optical fiber which arise due to microscopic bubbles, bruises, and the like during an optical fiber drawing process. The present invention operates by varying the pulling rate of a pulling capstan based on feeding back measurements of the external diameter of the optical fiber to the pulling capstan. The ratio of a given pulling rate variation to a predetermined time period is then computed. The computed ratio is then compared to a previously specified value.
摘要翻译: 提供了一种方法和装置,用于在光纤拉制过程中检测由于微小的气泡,瘀伤等引起的光纤的不规则部分。 本发明通过基于将光纤的外径的测量值反馈到牵引绞盘来改变牵引绞盘的牵引速率来操作。 然后计算给定的牵引速率变化与预定时间段的比率。 然后将计算的比率与先前指定的值进行比较。