Hollow core fiber buckling test system

Abstract

The application discloses a hollow core fiber warping test system and relates to the technical field of hollow core fiber warping test, which comprises a clamping assembly for clamping and fixing the hollow core fiber, a rotating assembly for driving the fiber to rotate, an image acquisition unit for acquiring images of different positions of the fiber, an information processing unit for driving the rotating assembly to drive the fiber to rotate, controlling the clamping assembly to adjust the fiber section required to be observed, and controlling the light source brightness in the image acquisition unit, and a hollow core fiber warping calculation unit for correcting the coaxiality of the fiber axis and the rotating assembly platform, finding the maximum value of the fiber axis deviation center through the images of different positions of the hollow core fiber, extracting the deviation values of a plurality of positions on the image with the maximum deviation, fitting the circles respectively, and obtaining the warping value by averaging the values. The fiber clamp can stably hold and rotate the hollow core fiber, the most suitable free suspension length of the hollow core fiber is determined by balancing the camera resolution and the influence of the gravity of the fiber itself, and the algorithm is improved, so that the test accuracy is improved.

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