发明名称 |
Apparatus and method for measuring residual stress and photoelastic effect of optical fiber |
摘要 |
Disclosed is an apparatus for measuring a residual stress and a photoelastic effect of an optical fiber, which includes: a light source; a rotary type optical diffuser distanced from the light source in a predetermined distance for suppressing the spatial coherence of a light radiated in the light source; an optical condenser for condensing the radiated light passed through the optical diffuser into a spot where the optical fiber is located; a polarizer for polarizing the light passed through the optical condenser into a 45° linear polarized light from an axis of the optical fiber; a polarization analyzer, installed at 90° angle with respect to the polariscope and attached closely with the optical fiber, to prevent the penetration by the background image of the optical fiber; an optical fiber strain unit including a strain sensor for straining the optical fiber on the polarization analyzer toward a longitudinal direction and measuring the strain on the optical fiber; an object lens for magnifying the image of the light penetrated through the optical fiber; and a charge coupled device (CCD) array for measuring the penetration variation of the optical fiber caused from the strain caused by the optical fiber strain unit over the optical fiber.
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申请公布号 |
US2001022873(A1) |
申请公布日期 |
2001.09.20 |
申请号 |
US20010803873 |
申请日期 |
2001.03.13 |
申请人 |
SAMSUNG ELECTRONIC CO., LTD. |
发明人 |
KIM DUG-YOUNG;PARK YONG-WOO;PAEK UN-CHUL;DO MUN-HYUN |
分类号 |
G01L1/00;G01L1/24;G01L5/00;G02B6/00;(IPC1-7):G02B6/26 |
主分类号 |
G01L1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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