Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations
Measurement of sub-millimetre-level deformations of structures in the presence of ambienttemperature changes can be challenging. This paper describes the measurement of astructure moving due to temperature changes, using two ShapeAccelArray (SAA)instruments, and verified by a geodetic monitoring sys...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2014-06-01
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| Series: | Geoinformatics FCE CTU |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/gi/article/view/2485 |
| _version_ | 1818956947304480768 |
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| author | Tomas Beran Lee Danisch Adam Chrzanowski Maciej Bazanowski |
| author_facet | Tomas Beran Lee Danisch Adam Chrzanowski Maciej Bazanowski |
| author_sort | Tomas Beran |
| collection | DOAJ |
| description | Measurement of sub-millimetre-level deformations of structures in the presence of ambienttemperature changes can be challenging. This paper describes the measurement of astructure moving due to temperature changes, using two ShapeAccelArray (SAA)instruments, and verified by a geodetic monitoring system. SAA is a geotechnicalinstrument often used for monitoring of displacements in soil. SAA uses micro-electro-mechanical system (MEMS) sensors to measure tilt in the gravity field. The geodeticmonitoring system, which uses ALERT software, senses the displacements of targetsrelative to control points, using a robotic total station (RTS). The test setup consists of acentral four-metre free-standing steel tube with other steel tubes welded to most of itslength. The central tube is anchored in a concrete foundation. This composite “pole” isequipped with two SAAs as well as three geodetic prisms mounted on the top, in the middle,and in the foundation. The geodetic system uses multiple control targets mounted inconcrete foundations of nearby buildings, and at the base of the pole. Long-termobservations using two SAAs indicate that the pole is subject to deformations due to cyclicalambient temperature variations causing the pole to move by a few millimetres each day. Ina multiple-day experiment, it was possible to track this movement using SAA as well as theRTS system. This paper presents data comparing the measurements of the two instrumentsand provides a good example of the detection of two-dimensional movements of seeminglyrigid objects due to temperature changes. |
| first_indexed | 2024-12-20T11:02:03Z |
| format | Article |
| id | doaj.art-5c3665fd26044505b0aa8dca90837b27 |
| institution | Directory Open Access Journal |
| issn | 1802-2669 |
| language | English |
| last_indexed | 2024-12-20T11:02:03Z |
| publishDate | 2014-06-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Geoinformatics FCE CTU |
| spelling | doaj.art-5c3665fd26044505b0aa8dca90837b272022-12-21T19:43:00ZengCzech Technical University in PragueGeoinformatics FCE CTU1802-26692014-06-01120344010.14311/gi.12.62285Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total StationsTomas Beran0Lee Danisch1Adam Chrzanowski2Maciej Bazanowski3Measurand Inc., 2111 Hanwell Road, Fredericton, New Brunswick, E3C 1M7 CanadaMeasurand Inc., 2111 Hanwell Road, Fredericton, New Brunswick, E3C 1M7 CanadaCanadian Centre for Geodetic Engineering, University of New Brunswick, PO Box 4400, Fredericton, New Brunswick, E3B 5A3 CanadaCanadian Centre for Geodetic Engineering, University of New Brunswick, PO Box 4400, Fredericton, New Brunswick, E3B 5A3 CanadaMeasurement of sub-millimetre-level deformations of structures in the presence of ambienttemperature changes can be challenging. This paper describes the measurement of astructure moving due to temperature changes, using two ShapeAccelArray (SAA)instruments, and verified by a geodetic monitoring system. SAA is a geotechnicalinstrument often used for monitoring of displacements in soil. SAA uses micro-electro-mechanical system (MEMS) sensors to measure tilt in the gravity field. The geodeticmonitoring system, which uses ALERT software, senses the displacements of targetsrelative to control points, using a robotic total station (RTS). The test setup consists of acentral four-metre free-standing steel tube with other steel tubes welded to most of itslength. The central tube is anchored in a concrete foundation. This composite “pole” isequipped with two SAAs as well as three geodetic prisms mounted on the top, in the middle,and in the foundation. The geodetic system uses multiple control targets mounted inconcrete foundations of nearby buildings, and at the base of the pole. Long-termobservations using two SAAs indicate that the pole is subject to deformations due to cyclicalambient temperature variations causing the pole to move by a few millimetres each day. Ina multiple-day experiment, it was possible to track this movement using SAA as well as theRTS system. This paper presents data comparing the measurements of the two instrumentsand provides a good example of the detection of two-dimensional movements of seeminglyrigid objects due to temperature changes.https://ojs.cvut.cz/ojs/index.php/gi/article/view/2485deformation monitoring, geodetic systems, geotechnical instrumentation |
| spellingShingle | Tomas Beran Lee Danisch Adam Chrzanowski Maciej Bazanowski Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations Geoinformatics FCE CTU deformation monitoring, geodetic systems, geotechnical instrumentation |
| title | Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations |
| title_full | Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations |
| title_fullStr | Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations |
| title_full_unstemmed | Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations |
| title_short | Measurement of Deformations by MEMS Arrays, Verified at Sub-millimetre Level Using Robotic Total Stations |
| title_sort | measurement of deformations by mems arrays verified at sub millimetre level using robotic total stations |
| topic | deformation monitoring, geodetic systems, geotechnical instrumentation |
| url | https://ojs.cvut.cz/ojs/index.php/gi/article/view/2485 |
| work_keys_str_mv | AT tomasberan measurementofdeformationsbymemsarraysverifiedatsubmillimetrelevelusingrobotictotalstations AT leedanisch measurementofdeformationsbymemsarraysverifiedatsubmillimetrelevelusingrobotictotalstations AT adamchrzanowski measurementofdeformationsbymemsarraysverifiedatsubmillimetrelevelusingrobotictotalstations AT maciejbazanowski measurementofdeformationsbymemsarraysverifiedatsubmillimetrelevelusingrobotictotalstations |