Thickness measuring method for insulating and sheathing materials of cable and optical cable

A sheath material and thickness measurement technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of inaccurate insulation and sheath material thickness of cables and optical cables, insufficient data processing, etc., to improve test efficiency, Accurate measurement, effect of high-precision measurement method

Inactive Publication Date: 2012-02-22
WENZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the insulation and sheath material thickness of cables and optical cables measured by the disclosed method is still not accurate enough, because the data processing in the later stage is not enough

Method used

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  • Thickness measuring method for insulating and sheathing materials of cable and optical cable
  • Thickness measuring method for insulating and sheathing materials of cable and optical cable
  • Thickness measuring method for insulating and sheathing materials of cable and optical cable

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0033] Such as figure 1 Shown, a kind of cable and optical cable insulation of the present invention and sheath material thickness measuring method comprise the steps:

[0034] Step 1. Set the magnification Z of the optical microscope according to the size range of the cross-sectional annular sheet of the insulation and sheath material of the cable or optical cable. The parameter Z can also be provided by analyzing the system expert software after the data processor is turned on. The magnification reference value is set;

[0035] Step 2. Put the cross-sectional annular sheet of the insulation and sheath material of the cable or optical cable on the optical microscope measurement platform. For thin slices cut on a vertical plane, choose the best slice with smooth inner and o...

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Abstract

The invention discloses a thickness measuring method for insulating and sheathing materials of a cable and an optical cable. The method is characterized in that: after an appropriate amplification factor of an optical microscope and an appropriate resolution of a digital image collector (like an industrial camera) are set, digital image collection is carried out; a collected digital image is transmitted to a computer or a digital processor; binarization processing and edge detection are carried out to extract a profile diagram; and then automatic processing is carried out by a program in a digital processor; thicknesses of insulating and sheathing materials of a cable and an optical cable are calculated and obtained and measurement results are displayed; at last, a record report is generated according to measurement result data and a marked picture. According to the invention, the method can be realized simply; the measuring speed is fast; the measuring results are reliable and have high precisions. And a method of rapid and accurate measurement on thicknesses of insulating and sheathing materials of a cable and an optical cable is provided for correlated metering and detection industries in China.

Description

technical field [0001] The invention relates to a method for measuring the thickness of insulation and sheath material of electric cables and optical cables, in particular to a method for testing the thickness of insulation and sheath materials of cables and optical cables which may be deformed or damaged under stress. Background technique [0002] The country has clear standards for the geometric parameters of the insulation and sheath of cables and optical cables, and gives the minimum and maximum limits. Manufacturers must strictly follow this standard to guide the industrial production of cables and optical cables to ensure safety. If the thickness of the cable insulation layer is lower than the minimum limit of the national standard, the insulation parameters will not meet the requirements, causing vicious safety accidents such as fire. . Conversely, if the insulation and sheath material thickness of the cable or optical cable exceeds the maximum limit of the national ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06
Inventor 胡众义许明海
Owner WENZHOU UNIVERSITY
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