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Yellow-green wire core yellow-green ratio tester

A yellow-green measuring instrument technology, applied in the direction of instruments, measuring devices, mechanical measuring devices, etc., can solve the problems that thin wire cores cannot be measured, difficult to measure accurately, and large measurement errors, etc., to achieve simple structure, reduce work difficulty, and easy operation easy effect

Inactive Publication Date: 2016-01-27
山东省产品质量监督检验研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Both methods have certain disadvantages: the former is more difficult to operate; the latter cannot measure the thickness of thin wire cores.
Moreover, the measurement error of the two is large, and it is difficult to achieve accurate measurement.

Method used

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  • Yellow-green wire core yellow-green ratio tester
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the yellow-green wire core yellow-green ratio measuring instrument of the present invention includes a dial 2, a pointer 3 is arranged at the center of the dial 2, a transparent flat plate 6 is arranged above the dial 2 and the pointer 3, and the center of the dial 2 and the transparent The center of the flat plate 6 is on the same vertical line; the circumference of the dial 2 is provided with a card slot 4, and the bottom of the transparent plate 6 is provided with a circumferential protective plate 5, and the lower edge of the protective plate 5 is inserted into the dial card slot 4 and can be inserted into the card slot 4. Internal rotation; a transparent plate 7 is arranged above the transparent plate 6; a magnifying glass 8 is arranged above the transparent plate 7; a shaft sleeve is set in the center of the dial 2, and a rotating shaft 1 is installed in the shaft sleeve, and the rotating shaft 1 is connected with the pointer 3, and the r...

Embodiment 2

[0023] Such as figure 2 As shown, in the yellow-green ratio measuring instrument for yellow-green wire cores of the present invention, there are two pointers 3; two rotating shafts 1 are installed in the bushing, which are respectively connected to one of the pointers. All the other structures are with embodiment 1.

[0024] When in use, the tested piece is placed on the transparent flat plate 6 , the center of the tested piece overlaps with the center of the transparent flat plate 6 , and the tested piece can be placed more accurately through the circle engraved on the transparent flat plate 6 .

[0025] Rotate the 2 pointers respectively, aim at the two yellow-green boundary lines of the tested part, read the 2 angles of the dial, and realize the angle measurement.

[0026] If the measurement angle is greater than 108 degrees, the monochrome exceeds 30%, and if it is less than 252 degrees, the monochrome is less than 70%. The angle ranges from 108 degrees to 252 degrees, ...

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Abstract

The invention relates to a quality testing device for insulated cables, in particular to a yellow-green ratio measuring instrument for yellow-green wire cores. The purpose is to provide a measuring instrument with simple structure and convenient operation, which can accurately measure the yellow-green ratio of the yellow-green wire core. The object of the present invention is achieved by adopting the following technical solutions: yellow-green wire core yellow-green ratio measuring instrument, which includes a dial, at least one pointer is arranged in the center of the dial, a transparent plate is arranged above the dial and the pointer, and the center of the dial is It is on the same vertical line as the center of the transparent plate. The beneficial effects of the invention are: simple structure, low cost; easy operation, reduced work difficulty during measurement; and accurate measurement of the yellow-green ratio of the yellow-green wire core.

Description

technical field [0001] The invention relates to a quality testing device for insulating wire cores, in particular to a yellow-green ratio measuring instrument for yellow-green wire cores. Background technique [0002] According to the requirements of national quality standards, qualified insulated cables must have 30-70% yellow and green cores respectively. At present, when measuring the angle of the yellow-green wire core of an insulated cable, two methods are usually used. One is to use a projector to directly measure, or use a projector to form an image, and then use a special measurement software to process the image data, and complete the measurement of the workpiece. work; the second is to use paper tape to wrap a circle around the surface of the wire, mark the yellow and green parts, and then measure the circumference and calculate the ratio of the yellow and green lengths to obtain the ratio of the two. Both methods have certain disadvantages: the former is more dif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/00G01B5/24
Inventor 冉德焕辛峰孙积凯王锋林蓝波耿博洋高静
Owner 山东省产品质量监督检验研究院
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