A ceramic ferrule concentricity detector and its detection method

Abstract

The invention provides a ceramic ferrule concentricity detector and its detection method. The detector includes a light source device for projecting light; a positioning device has a plurality of positioning cavities for placing a plurality of ceramic ferrules, positioning The cavities are sequentially aligned with the projected light of the light source device in turn, so that the projected light is projected through the inner hole of the ceramic ferrule; core inner hole image projection; and an imaging processing device, coupled to the acquisition device, for projecting and imaging the image collected by the acquisition device and calculating the concentricity of the inner hole image. Therefore, it is suitable for testing the concentricity of ceramic ferrules in batches, and improves the accuracy and detection efficiency of the concentricity detection of ceramic ferrules.

Description

technical field [0001] The invention relates to the field of detection of ceramic ferrules, in particular to a detector and a detection method suitable for batch detection of the concentricity of ceramic ferrules. Background technique [0002] With the implementation of fiber-to-the-home, fiber optic connectors, as an indispensable optical passive component in fiber optic communication systems, are increasingly in demand. The optical fiber connector is to precisely butt the two end faces of the optical fiber, and to maximize the coupling of the optical energy output by the transmitting optical fiber into the receiving optical fiber. The fiber optic ceramic ferrule, also known as the ceramic ferrule body, is the core component of the fiber optic connector. It is a precisely centered cylinder in the fiber optic connector plug. There is a microhole in the center for fixing the fiber. Among them, various performance indicators of fiber optic ceramic ferrules, such as inner diam...

AI Technical Summary

Problems solved by technology

[0003] In the actual processing process, the concentricity of the ceramic ferrule will be affected by many factors, which will cause a large deviation in the concentricity of the processed ceramic ferrule pair.

But now, most of the research in our country is the end face detection of optical fiber connectors. The measurement technology of the geometric parameters of the ceramic ferrule is relatively backward. Although there are many concentricity detection methods for round holes, such as dial gauges and three-coordinate measuring machines However, when these testing equipment are used to detect the concentricity of the central hole of the pipe, especially for the case of deep holes and small holes, because instruments such as dial gauges cannot go deep into the central hole for direct measurement, it cannot be accurately detected, and many All detection instruments need to be operated manually, which reduces the test efficiency and increases the detection error

At the same time, the detection of concentricity is mostly fixed by V-groove, and the accuracy of ceramic ferrule detection is reduced by manual feeding and rotating ferrule operation, which leads to a decrease in detection efficiency and is not suitable for batch detection.

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