LABORATORY TESTING OF THE PRECISION AND ACCURACY OF THE SHAPEACCELARRAY SENSOR IN HORIZONTAL INSTALLATION

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00301625" target="_blank" >RIV/68407700:21110/16:00301625 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/16:00465020

Výsledek na webu

<a href="http://dx.doi.org/10.5593/SGEM2016/B11/S02.110" target="_blank" >http://dx.doi.org/10.5593/SGEM2016/B11/S02.110</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/SGEM2016/B11/S02.110" target="_blank" >10.5593/SGEM2016/B11/S02.110</a>

Jazyk výsledku

angličtina

Název v původním jazyce

LABORATORY TESTING OF THE PRECISION AND ACCURACY OF THE SHAPEACCELARRAY SENSOR IN HORIZONTAL INSTALLATION

Popis výsledku v původním jazyce

Sensor SAA (ShapeAccelArray) is to certain extent unique device enabling not only the automation of classical inclinometer measurements, but other utilization such as convergence measurements or registering of vibrations. SAA sensor is in basic principle an array of rigid segments and flexible joints. Joints allow movement in any direction except twist and allow the sensor to capture spatial variations of its neighborhood. Rigid segments are equipped with triaxial MEMS (Micro Electro-Mechanical System) accelerometers. These sensors enable high-frequency measurement of segments tilt relative to the direction of gravity. Full range of measurement of MEMS accelerometers allows installation in any position - vertically, horizontally or in combination of both. For inclusion of this sensor to the context of other methods for measuring shifts and deformations should be noted that there are many other geodetic and geotechnical methods used for the deformation size and direction determination. There can be mentioned as an examples 3D (laser) scanning (in [12] or in [13]), classic geodetic methods (in [14]) or GNSS methods (in [15]). Current publications describe functions the SAA sensor, examples of its practical application and comparison with other geotechnical methods. Sensor accuracy in terms of engineering surveying point of view has been solved minimally so far. This paper describes laboratory test of SAA sensor in a horizontal installation. The aim was to determine the accuracy characteristics of the measurement of vertical deformations without affect of the protective PVC casing, where the sensor is installed in field by default. Vertical deformations of the array were performed using special heaver, which allows to realize displacements with high accuracy using rotation of screws. We hope, that this contribution will bring useful information for potential users of this equipment.

Název v anglickém jazyce

LABORATORY TESTING OF THE PRECISION AND ACCURACY OF THE SHAPEACCELARRAY SENSOR IN HORIZONTAL INSTALLATION

Popis výsledku anglicky

Sensor SAA (ShapeAccelArray) is to certain extent unique device enabling not only the automation of classical inclinometer measurements, but other utilization such as convergence measurements or registering of vibrations. SAA sensor is in basic principle an array of rigid segments and flexible joints. Joints allow movement in any direction except twist and allow the sensor to capture spatial variations of its neighborhood. Rigid segments are equipped with triaxial MEMS (Micro Electro-Mechanical System) accelerometers. These sensors enable high-frequency measurement of segments tilt relative to the direction of gravity. Full range of measurement of MEMS accelerometers allows installation in any position - vertically, horizontally or in combination of both. For inclusion of this sensor to the context of other methods for measuring shifts and deformations should be noted that there are many other geodetic and geotechnical methods used for the deformation size and direction determination. There can be mentioned as an examples 3D (laser) scanning (in [12] or in [13]), classic geodetic methods (in [14]) or GNSS methods (in [15]). Current publications describe functions the SAA sensor, examples of its practical application and comparison with other geotechnical methods. Sensor accuracy in terms of engineering surveying point of view has been solved minimally so far. This paper describes laboratory test of SAA sensor in a horizontal installation. The aim was to determine the accuracy characteristics of the measurement of vertical deformations without affect of the protective PVC casing, where the sensor is installed in field by default. Vertical deformations of the array were performed using special heaver, which allows to realize displacements with high accuracy using rotation of screws. We hope, that this contribution will bring useful information for potential users of this equipment.

Druh

D - Stať ve sborníku

CEP obor

DE - Zemský magnetismus, geodesie, geografie

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

16th International Multidisciplinary Scientific GeoConference SGEM 2016, Book 1 Vol. 1

ISBN

978-619-7105-55-1

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

8

Strana od-do

871-878

Název nakladatele

International Multidisciplinary Scientific GeoConference SGEM

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

28. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000393240700110