Smart Optical Sensing System for Duke University Pratt School of Engineering

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A Grant by Bill & Melinda Gates Foundation to support construction of a new, multidisciplinary science facility the Fitzpatrick Center was awarded to Duke University. Dean  Kristina M. Johnson of Pratt engineering at Duke University approved the fiber optical system ChM4 and Keehi Technologies installed in the applied science center to further develop and implement optical sensing application as a learning tool. We were one of the first world wide to embed FBG optical sensors in concrete for structural health monitoring, and optical security systems integrated with a camera to react to movement. For purposes of description, the system can be divided into two separate logical functions: (1) the Smart Camera System, and (2) the Structural Health Monitoring System. The core components and equipment common to both functions are the Fiber Bragg Gratings (FBG) Arrays and the swept laser LUNA interrogation equipment.