发明名称 |
SPECTROPHOTOMETER FOR MEASURING THICKNESS OR WEIGHT OF WATER-CONTAINING COATINGS |
摘要 |
The thickness and/or weight of a water-containing composition is measured by an infrared spectrophotometer wherein the attenuation of radient energy at a measuring wavelength which is substantially absorbed by the coating composition is compared with the attenuation of radient energy at a second reference wavelength not substantially absorbed by the coating composition.
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申请公布号 |
US3661462(A) |
申请公布日期 |
1972.05.09 |
申请号 |
USD3661462 |
申请日期 |
1970.04.23 |
申请人 |
GEVAERT-AGFA NV. |
发明人 |
LUC YVES NATENS |
分类号 |
G01J3/42;G01J3/427;G01N21/31;(IPC1-7):G01J3/42 |
主分类号 |
G01J3/42 |
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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