Kim, Mengchheang creator Krishna, Chaitanya Chairperson Mohammed, Waleed Co-chairperson Pennung Warnitchai Examination Committee Trau, Dieter Wilhelm Examination Committee Bora, Tanujjal Examination Committee Nakhorn Poovarodom Examination Committee AIT Fellowship Scholarship Donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2024 continuing eng

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92 leaves : ill.+ 1 online resource Structural identification provides valuable insights into the condition of buildings and bridges by utilizing vibration data obtained through sensors to determine dynamic properties such as natural frequency, mode shapes, and damping, which are essential for assessing both old and new structures. Vibration sensors play a crucial role in applications such as damage detection and condition assessment, model updating and validation, maintenance and life cycle management, and long-term monitoring. This research focuses on the development of a non-contact, laser-based vibration sensor designed for ambient measurements over long distances. A comprehensive setup and theoretical framework for the instrument{u2019}s develop ment are presented, alongside laboratory experiments and field applications on buildings to evaluate the sensor{u2019}s performance. Detailed results on sensor calibration, bench marking, and practical applications are provided, with comparisons to an industrial-standard vibra tion sensor, such as the force balance developed by Columbia Research Laboratories, Inc. The findings demonstrate potential of the developed sensor as an effective tool for structural identification and monitoring. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering Thesis (M. Eng.) - Asian Institute of Technology, 2024 Structural health monitoring Detectors Design and construction Vibration Asian Institute of Technology. http://203.159.5.9/ait-thesis/Viewer/viewer.php?id=B23548 http://203.159.5.9/ait-thesis/Viewer/viewer.php?id=B23548 260202 20260818090652.0