| 发明名称 |
EVALUATING POROSITY DISTRIBUTION WITHIN A POROUS ROD |
| 摘要 |
A method is provided for evaluating porosity distribution within a porous article such as a crimped filter, a tobacco plug, or a cigarette, including obtaining a digital image of a transverse area of the article and determining a pore area fraction for each of a plurality of identically dimensioned sub-areas of the transverse area of the article. This provides a plurality of pore area fractions. The plurality of pore area fractions allow the evaluation of a local porosity distribution within the transverse area of the porous article. Each sub-area within which a pore area fraction is calculated overlaps with at least one adjacent sub-area by between 10% and 95%. The method for quantitatively evaluating porosity distribution may be used to control a process for manufacturing the porous article. |
| 申请公布号 |
US2015374028(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201414766896 |
申请日期 |
2014.02.13 |
| 申请人 |
PHILIP MORRIS PRODUCTS S.A. |
发明人 |
GINDRAT Pierre-Yves;NORDLUND Karl Markus;KLIPFEL Yorick |
| 分类号 |
A24C5/34;G06T7/00;A24D3/02;H04N5/225;G05B19/4097;G01N15/08;G06T7/60 |
主分类号 |
A24C5/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for evaluating porosity distribution within a porous article, the method comprising the steps of:
obtaining a digital image of a transverse area of the article; determining an area fraction of pores present within each of a plurality of identically dimensioned sub-areas of the transverse area, thereby obtaining a plurality of pore area fractions; and using the plurality of pore area fractions to evaluate the porosity distribution within the transverse area of the porous article, in which each sub-area overlaps at least one adjacent sub-area by between 10% and 95%. |
| 地址 |
Neuchatel CH |
