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1.发明公开METHOD AND APPARATUS FOR MEASURING STRAIN USING A LUMINESCENT PHOTOELASTIC COATING 审中-公开方法和设备，应力测量使用发光PHOTO弹性涂料
公开(公告)号：EP1552244A1
公开(公告)日：2005-07-13
申请号：EP03731236.0
申请日：2003-05-20
发明人： HUBNER, James, P. , IFJU, Peter , SCHANZE, Kirk, S. , JIANG, Shujun , LIU, Yao , JENKINS, David, A. , EL-RATAL, Wissam
摘要： A method and apparatus for measuring strain on a surface of a substrate (140) utilizes a substrate surface coated with at least one coating layer (145). The coating layer (145) provides both luminescence and photoelasticity. The coating layer (145) is illuminated with excitation light (110), wherein longer wavelength light is emitted having a polarization dependent upon stress or strain in the coating. At least one characteristic of the emitted light is measured, and strain (if present) on the substrate (140) is determined from the measured characteristic.
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公开(公告)号：EP1121567A1
公开(公告)日：2001-08-08
申请号：EP99973977.4
申请日：1999-10-21
发明人： IFJU, Peter , SCHANZE, Kirk, S. , WANG, Yingsheng , HUBNER, James , JENKINS, David , EL-RATAL, Wissam , BRENNAN, Anthony, B. , HE, Liu , SHEN, Yibing , CARROLL, Bruce
摘要： The change in the morphology of cracks in a coating varies one or more characteristics of the luminescence emanating from the coating such that the strain on the substrate material can be determined by measuring the luminescence emanating from the coating. The luminescent strain-sensitive coating of the subject invention is preferably a polymer-based coating, and can incorporate one or more luminescent compounds. The subject coating can be applied to produce a thin film on a substrate material, such as aluminum, steel, polymer, or composite. One or more characteristics of the luminescence emanating from the coating can then vary in relation to the strain on the substrate material.
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公开(公告)号：EP1121567B1
公开(公告)日：2004-09-15
申请号：EP99973977.4
申请日：1999-10-21
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