Optical fiber propelling control method of optical fiber fusion splicer and optical fiber fusion splicer
An optical fiber fusion splicer and propulsion control technology, which is applied in the coupling of optical waveguides, etc., can solve the problems of inaccurate image focus, increase the manufacturing cost of optical fiber fusion splicers, affect image recognition, etc., and achieve the effect of accurate and automatic advancement
Active Publication Date: 2015-05-13
SIGNAL FIRE TECH CO LTD
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Problems solved by technology
We know that the diameter of the optical fiber is only 125 microns, and the fiber core that needs to be aligned is only a few microns. Therefore, to adopt automatic alignment based on image recognition technology, there are extremely high requirements for the image quality extracted by the camera. We know that optical fiber images It is magnified by more than 200 to 300 times, which means that a small amount of optical fiber placement error will lead to inaccurate focus of the image, which will lead to poor image quality extracted by the camera and affect image recognition. In order to prevent this problem Generated, the automatic identification fiber fusion splicer must take the following measures to solve the problem:
[0006] The above three methods are not effective alone, and must be implemented comprehensively to ensure the reliability of image recognition and improve the success rate of welding. However, this will increase the manufacturing cost of the optical fiber fusion splicer
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Embodiment 1
[0028] An optical fiber fusion splicer, such as Figure 5 As shown, it includes a housing 3, an optical fiber support 2, a display screen 1, and there are control buttons below the display screen. The fiber holder 2 is used to fix the optical fiber and fine-tune the position of the optical fiber. There is a fiber delivery part in the housing for transporting the two optical fibers to the fusion splicing area. There is also a CMOS or CCD and an imaging system in the housing for capturing fiber images. This part is similar to the existing optical fiber fusion splicer.
[0029] The improvement of this embodiment relative to the existing optical fiber fusion splicer is that the light intensity change of a certain identification area (this area includes the fusion splicing area or is the fusion splicing area) can be judged by using the function of CMOS or CCD to read the light intensity, and further use the judgment Whether the optical fiber enters the identification area is ident...
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The invention discloses an optical fiber propulsion control method for an optical fiber fusion splicer, which comprises the following steps: measuring the light intensity of an area containing an optical fiber fusion location; pushing the first optical fiber into the area, and recording the light intensity change in the area, when When the light intensity change value reaches the predetermined first threshold value, stop pushing the first optical fiber; push the second optical fiber into the area, and record the light intensity change in the area, when the light intensity change value reaches the predetermined second threshold value, Stop pushing the second optical fiber; push the first optical fiber and the second optical fiber to move the preset distance, so that the first optical fiber and the second optical fiber reach the fusion splicing position. The method of the invention and the optical fiber fusion splicer designed based on the method can greatly reduce the manufacturing cost of the optical fiber fusion splicer.
Description
technical field [0001] The present invention relates to a method and tool for controlling the advancing position of the optical fiber when connecting the end of the optical fiber, in particular to the improvement of the method for identifying the position of the optical fiber when controlling the position of the optical fiber and an optical fiber fusion splicer using the improved method. Background technique [0002] The main methods currently used by fiber optic fusion splicers are automatic identification and automatic alignment. When necessary, human eye identification and manual alignment can be used. We know that the diameter of the optical fiber is only 125 microns, and the fiber core that needs to be aligned is only a few microns. Therefore, to adopt automatic alignment based on image recognition technology, there are extremely high requirements for the image quality extracted by the camera. We know that optical fiber images It is magnified by more than 200 to 300 tim...
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IPC IPC(8): G02B6/255
Inventor 罗春晖
Owner SIGNAL FIRE TECH CO LTD