发明名称 |
COATING THICKNESS MEASUREMENT USING A NEAR INFRARED ABSORBANCE TECHNIQUE AND A LIGHT DIFFUSER |
摘要 |
A system and method for measuring coating thickness upon a substrate is disclosed. A near infrared light is directed upon the coating and reflected near infrared light is collected to determine the coating thickness. A diffuser is placed between the coating and the reflected near infrared light collector to improve the accuracy of the measurement, especially for coating thickness of less than about 2 mils and for coatings with shiny surfaces. The diffuser is formed of a low density polytetrafluoroethylene fluoropolymer film. |
申请公布号 |
WO2008070411(A3) |
申请公布日期 |
2008.10.23 |
申请号 |
WO2007US84639 |
申请日期 |
2007.11.14 |
申请人 |
THE BOEING COMPANY;SHELLEY, PAUL H.;WERNER, GREGORY J |
发明人 |
SHELLEY, PAUL H.;WERNER, GREGORY J |
分类号 |
G01B11/06;G01N21/47;G01N21/84 |
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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