公开(公告)号：JPH07306128A

公开(公告)日：1995-11-21

申请号：JP13121595

申请日：1995-05-02

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： RUISETSURA KIYAARO ,  JIYORUJIYO GUREGO ,  PAORA REEJIYO

IPC: G01N11/00 ,  G01M11/00 ,  G01M11/08 ,  G01N3/00 ,  G01N3/08 ,  G01N19/00 ,  G02B6/00

Abstract: PURPOSE: To carry out measurement under an action condition by holding a coating slidably without causing any split as to a coated fiber and applying vibration, which is relative to a tensile prestress, to the coating. CONSTITUTION: Each of clamps 1, 2 is constructed of a main body 11, which is provided with a V-shaped groove 12 leading a coated fiber 3, and a holding plate 13. A dimension of the groove 12 is properly selected, and a coating 10 is held without any split and can be slid in the longitudinal direction to a central part, 9, while a pressing stress can be applied only to the coating 10. On the other hand, an arm 4 is fixed in a fixing plate 8, and an arm 5 can be rotated around a vertical axis. In measurement, the fiber 3 is fixed between the clamps 1, 2, and the arm 5 is rotated by a predetermined angle. Then, the arm 5 is vibrated at a proper frequency and at such an amplitude as causes vibrational deformation in the longitudinal direction inside the fiber 3, and this vibration is given to the clamp 2. Consequently, measurement of the fiber 3 under an acting condition can be carried out.