Long distance displacement measurement using a sampling moiré camera in an actual field measurement condition | |
| Author | Prach Kao-eian |
| Call Number | AIT Thesis no.ST-23-11 |
| Subject(s) | Moiré method Structural engineering |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This paper presents a novel approach to measuring the displacement of an operational launching gantry by using a non-destructive technique, which is a sampling moiré camera. The mentioned method is well-known for its effectiveness in measuring short distances and is typically employed in controlled environments, such as within buildings or laboratories. However, this thesis endeavors to apply the sampling moiré method in real-world conditions, particularly for long-distance testing. The motivation for this research is the current global challenge in public construction, including bridges and roads. Notably, in Thailand since the beginning of 2023, there have been over three accidents resulting in loss of life due to inadequate structural monitoring. This thesis aims to enhance and propose a new approach to structural health monitoring, specifically for long-distance deformation measurement. This method leverages image processing techniques to accurately measure structural displacements. The research applies the mentioned method to monitor an operation of a launching girder. Results show that the sampling moiré method could depict the movement of the launching gantry successfully. The results also outline the challenges and difficulties associated with implementing this method. Accuracy and recommendations for improvement are also mentioned in this thesis. |
| Year | 2023 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai;Punchet Thammarak (Co-chairperson) |
| Examination Committee(s) | Thanakorn Pheeraphan;Anwar, Naveed |
| Scholarship Donor(s) | Royal Thai Government Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2023 |