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专利名称：Strain power ON test method null of optical fiber
发明人：笹川 俊勝
申请号：JP特願平2-291437
申请日：19901029难受英语
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ramy公开号：JP特許第3055926号(P3055926)B2进展英文
建造师考试科目
公开日：
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2013年研究生国家线专利内容由知识产权出版社提供
摘要：PURPOSE:To continuously test the proof of tension by increasing the take-up speed of a cond take-up device so that it is higher than the take-up speed of a first take-up device by such a desired value that is determined in accordance with a running distance between two take-up devices. CONSTITUTION:An optical fiber 1 payed out from a feed device 5 is led through a first take-up device 2, and is turned in its direction by a guide roller 4, and is wound up a wind-up device 6 through a cond take-up device 3. In this pha, during wind-up, the take-up speed V2 of the device 3 is t to be higher than the take-up speed V2 of the device 2 by a value (v), and accordingly, the optical fiber 1 is elongated between the devices 2, 3 with a rate of elongation given by v/LX100% where L is a running distance between the devices 2, 3. Accordingly, the rotational speeds M1, M2 of motors M1, M2 are t to desired values. Thereby, it is possible to give a desired elongation rate to the optical fiber 1.
up申请人：株式会社フジクラ
地址：東京都江東区木場1丁目5番1号
国籍：JP
代理人：増田 竹夫
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