AI SearchDevelopment of a low-cost laser vibrometer sensor for structural indentification
Call Number: AIT Thesis no.ST-24-29 Material type:
SeriesSeries: Asian Institute of Technology. Thesis ; no. ST-24-29Publication details: Pathum Thani, Thailand : Asian Institute of Technology, 2024Description: 92 leaves : ill.+ 1 online resourceSubject(s): Online resources: Dissertation note: Thesis (M. Eng.) - Asian Institute of Technology, 2024 Summary: 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.
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Asian Institute of Technology Library Archives | AIT Thesis no.ST-24-29 (Browse shelf(Opens below)) | 1 | Not for loan |
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 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.
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