Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations
The monitoring of rigid structures of modal frequencies greater than 5 Hz and sub-mm displacement is mainly based so far on relative quantities from accelerometers, strain gauges etc. Additionally geodetic techniques such as GPS and Robotic Total Stations (RTS) are constrained by their low accuracy...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
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Springer
2015
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| Online Access: | https://eprints.nottingham.ac.uk/35264/ |
| _version_ | 1848795039062294528 |
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| author | Charalampous, Elina Psimoulis, Panos Guillaume, Sebastian Spiridonakos, Minas Klis, Roman Burki, Beat Rothacher, Markus Chatzi, Eleni Luchsinger, R. Feltrin, G. |
| author_facet | Charalampous, Elina Psimoulis, Panos Guillaume, Sebastian Spiridonakos, Minas Klis, Roman Burki, Beat Rothacher, Markus Chatzi, Eleni Luchsinger, R. Feltrin, G. |
| author_sort | Charalampous, Elina |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The monitoring of rigid structures of modal frequencies greater than 5 Hz and sub-mm displacement is mainly based so far on relative quantities from accelerometers, strain gauges etc. Additionally geodetic techniques such as GPS and Robotic Total Stations (RTS) are constrained by their low accuracy (few mm) and their low sampling rates. In this study the application of QDaedalus is presented, which constitutes a measuring system developed at the Geodesy and Geodynamics Lab, ETH Zurich and consists of a small CCD camera and Total Station, for the monitoring of the oscillations of a rigid structure. In collaboration with the Institute of Structural Engineering of ETH Zurich and EMPA, the QDaedalus system was used for monitoring of the sub-mm displacement of a rigid prototype beam and the estimation of its modal frequencies up to 30 Hz. The results of the QDaedalus data analysis were compared to those of accelerometers and proved to hold sufficient accuracy and suitably supplementing the existing monitoring techniques. |
| first_indexed | 2025-11-14T19:25:44Z |
| format | Article |
| id | nottingham-35264 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:25:44Z |
| publishDate | 2015 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-352642020-05-04T17:07:18Z https://eprints.nottingham.ac.uk/35264/ Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations Charalampous, Elina Psimoulis, Panos Guillaume, Sebastian Spiridonakos, Minas Klis, Roman Burki, Beat Rothacher, Markus Chatzi, Eleni Luchsinger, R. Feltrin, G. The monitoring of rigid structures of modal frequencies greater than 5 Hz and sub-mm displacement is mainly based so far on relative quantities from accelerometers, strain gauges etc. Additionally geodetic techniques such as GPS and Robotic Total Stations (RTS) are constrained by their low accuracy (few mm) and their low sampling rates. In this study the application of QDaedalus is presented, which constitutes a measuring system developed at the Geodesy and Geodynamics Lab, ETH Zurich and consists of a small CCD camera and Total Station, for the monitoring of the oscillations of a rigid structure. In collaboration with the Institute of Structural Engineering of ETH Zurich and EMPA, the QDaedalus system was used for monitoring of the sub-mm displacement of a rigid prototype beam and the estimation of its modal frequencies up to 30 Hz. The results of the QDaedalus data analysis were compared to those of accelerometers and proved to hold sufficient accuracy and suitably supplementing the existing monitoring techniques. Springer 2015-06-01 Article PeerReviewed Charalampous, Elina, Psimoulis, Panos, Guillaume, Sebastian, Spiridonakos, Minas, Klis, Roman, Burki, Beat, Rothacher, Markus, Chatzi, Eleni, Luchsinger, R. and Feltrin, G. (2015) Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations. Applied Geomatics, 7 (2). pp. 91-101. ISSN 1866-9298 CCD camera total station sub-mm oscillation high modal frequency http://link.springer.com/article/10.1007%2Fs12518-014-0150-z doi:10.1007/s12518-014-0150-z doi:10.1007/s12518-014-0150-z |
| spellingShingle | CCD camera total station sub-mm oscillation high modal frequency Charalampous, Elina Psimoulis, Panos Guillaume, Sebastian Spiridonakos, Minas Klis, Roman Burki, Beat Rothacher, Markus Chatzi, Eleni Luchsinger, R. Feltrin, G. Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations |
| title | Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations |
| title_full | Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations |
| title_fullStr | Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations |
| title_full_unstemmed | Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations |
| title_short | Measuring sub-mm structural displacements using QDaedalus: a digital clip-on measuring system developed for total stations |
| title_sort | measuring sub-mm structural displacements using qdaedalus: a digital clip-on measuring system developed for total stations |
| topic | CCD camera total station sub-mm oscillation high modal frequency |
| url | https://eprints.nottingham.ac.uk/35264/ https://eprints.nottingham.ac.uk/35264/ https://eprints.nottingham.ac.uk/35264/ |