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Fractal dimension based quantitative characterization method of cigarette ash column crack distribution characteristics

A technology of crack distribution and fractal dimension, which is applied in the direction of measuring devices, analyzing materials, and analyzing materials by optical means.

Active Publication Date: 2018-11-27
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of indicators to quantitatively characterize the complexity of crack morphology in cigarette ash columns

Method used

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  • Fractal dimension based quantitative characterization method of cigarette ash column crack distribution characteristics
  • Fractal dimension based quantitative characterization method of cigarette ash column crack distribution characteristics
  • Fractal dimension based quantitative characterization method of cigarette ash column crack distribution characteristics

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Experimental program
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Effect test

Embodiment 1

[0027] A quantitative characterization method for crack distribution characteristics of cigarette ash column based on fractal dimension The calculation of the characteristic fractal dimension of cracks in the ash column of branded cigarettes in the state of static combustion is as follows:

[0028] (1) Cigarette sample preparation: put Brand cigarettes are placed in the standard conditions of constant temperature and humidity box (temperature is 22 ± 2 o C, the relative humidity is 60±5%) and equilibrated for 48 hours.

[0029] (2) Cigarette burning and ash column image acquisition: use a cigarette lighter to ignite a balanced cigarette, and fix it on a glass tube cigarette burning support. Burn statically on the bracket until the distance from the tipping paper is 1.5cm, and use a digital camera to take pictures of the soot column to obtain the image of the soot column. The grayscale image of the soot column is as follows: figure 1 (a) shown. The cigarette burning suppo...

Embodiment 2

[0036] A quantitative characterization method for crack distribution characteristics of cigarette ash column based on fractal dimension, The calculation of the characteristic fractal dimension of cracks in the ash column of branded cigarettes in the state of static combustion is as follows:

[0037] (1) Cigarette sample preparation: put Brand cigarettes are placed in the standard conditions of constant temperature and humidity box (temperature is 22 ± 2 o C, the relative humidity is 60±5%) and equilibrated for 48 hours.

[0038] (2) Image acquisition of cigarette burning and ash column: Use a cigarette lighter to ignite a balanced cigarette, and fix it on an aluminum cigarette burning stand, which is located in a test box for ash-coating performance under good lighting conditions. After the cigarette is statically burned on the cigarette burning support to the set position, that is, at a distance of 1.0cm from the tipping paper, a digital camera is used to take pictures of...

Embodiment 3

[0046] A quantitative characterization method for crack distribution characteristics of cigarette ash column based on fractal dimension, The steps to calculate the characteristic fractal dimension of cracks in the ash column of branded cigarettes under the simulated smoking state are as follows.

[0047] (1) Cigarette sample preparation: put Brand cigarettes are placed in the standard conditions of constant temperature and humidity box (temperature is 22 ± 2 o C, the relative humidity is 60±5%) and equilibrated for 48 hours.

[0048] (2) Image acquisition of cigarette burning and ash column: Use a cigarette lighter to ignite a balanced cigarette, and fix it on the cigarette burning support. In the ash performance test box, the other end of the cigarette burning support is connected to the simulated suction device through a flexible catheter. The suction conditions are carried out according to the standard conditions: one puff every 60s, each puff lasts for 2s, and the suct...

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Abstract

The invention provides a fractal dimension based quantitative characterization method of cigarette ash column crack distribution characteristics. The method is used for solving the problem of quantitative evaluation of crack morphology of a cigarette ash column. The method includes the following steps: firstly, obtaining an ash column image of a cigarette under static combustion or simulated smoking conditions; secondly, selecting an analysis area by using image processing software (Image J), binarizing the analysis area, and extracting a ash column crack distribution image; and finally, calculating the fractal dimensions of the ash column crack distribution by using a box dimension calculation method. Based on the fractal characteristics of the crack distribution and taking the randomnessof the formation and the complexity of the morphology of cigarette combustion ash column cracks into consideration, the method expresses the rich information contained in the crack distribution stateby the fractal dimensions, can quantitatively evaluate the property of ash integration of burning cigarettes, and can provide method support for cigarette product development and quality improvement.

Description

technical field [0001] The invention relates to the technical field of cigarette ash performance analysis, in particular to a quantitative characterization method for crack distribution characteristics of cigarette ash column based on fractal dimension. Background technique [0002] With the continuous improvement of the structure of cigarettes in my country and the diversification of cigarette specifications, the ash-packing performance of cigarettes has been increasingly valued by product developers. In addition, the ash-packing performance of cigarettes is also considered to be an important indicator of cigarette grades and has been favored by consumers. continuous attention. Cigarette pack ash performance includes various indicators, such as the tightness of pack ash, the number of turned-out ash pieces, the distribution of cracks in the ash column, and the color of ash (Tobacco Science and Technology, 2011, 48 (2): 62-68). At present, the evaluation of these indicators ...

Claims

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8851G01N2021/8887
Inventor 梁淼岳凌宇侯佩张果李瑞丽王建民
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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