15 October 2014 Remote fluorescence lifetime inspection of hermeticity of packaged food containers
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Abstract
This paper describes recent progress towards the development of a remote “frequency-domain” fluorescence lifetime (SeePhase™) monitor used for the real time hermetic seal leak inspection of packaged food containers. A multitude of food goods, meets, vegetables, and beverages are typically packaged within an inert environment to reduce the risk of bacteria growth and increase the storage life of the food product. The SeePhase™ system uses a multi-parameter oxygen, carbon dioxide, and moisture sensitive patch that is placed within the hermetic sealed food package. Upon the presence of gases oxygen, carbon dioxide, or moisture inside the hermetic sealed food package, the sensor patch produces a fluorescence lifetime signature characteristic of a hermetic seal leak damage of the package.
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Edgar A. Mendoza, Cornelia Kempen, Sunjian Sun, Yan Esterkin, "Remote fluorescence lifetime inspection of hermeticity of packaged food containers", Proc. SPIE 9202, Photonics Applications for Aviation, Aerospace, Commercial, and Harsh Environments V, 92020P (15 October 2014); doi: 10.1117/12.2064345; https://doi.org/10.1117/12.2064345
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