发明名称 |
Determination of layer thickness or non-uniformity of layer thickness based on fluorophore additives |
摘要 |
<p>The invention provides a method for measuring the thickness, or nonuniformity of thickness, of one or more layers of a film or article such as a preform. At least one layer contains a known concentration and a substantially uniform distribution of fluorophores. The fluorophores are added to the one or more layers in sufficient quantity to impart fluorescence capable of detection by a detector when exposed to electromagnetic radiation at absorbing wavelengths. The layers of the invention may be made from polymeric material, non-polymeric material, or combinations thereof. <IMAGE></p> |
申请公布号 |
EP1180660(A3) |
申请公布日期 |
2004.04.21 |
申请号 |
EP20010118981 |
申请日期 |
2001.08.06 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
HANSON, SCOTT ARNOLD;NELSON, GREGORY WAYNE;DONELSON, MICHAEL EUGENE |
分类号 |
G01B11/06;G01N21/64;(IPC1-7):G01B11/06 |
主分类号 |
G01B11/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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