Results 1 to 10 of about 259,667 (136)

TLS-Detectable Plane Changes for Deformation Monitoring. [PDF]

Sensors (Basel), 2022
TLS is nowadays often used for deformation monitoring. As it is not able to scan identical points in different time epochs, mathematical models of objects derived from point clouds have to be used. The most common geometric form to describe built objects is a plane, which can be described by four parameters.
Kregar K, Marjetič A, Savšek S.
europepmc   +4 more sources

Stretchable plasmonic metasurfaces for deformation monitoring. [PDF]

Nanophotonics
Abstract Metasurfaces have recently gained significant attention due to the strong capacity in light field manipulation. However, most traditional metasurfaces are fabricated on rigid substrates, which fix their functionality after fabrication and limit their applications in dynamic measurement fields.
Li P, Gao K, Ma R, Pan K, Li D, Liu F, Li P, Gan X, Zhao J, Wen D.   +9 more
europepmc   +4 more sources

Discontinuous GBSAR deformation monitoring [PDF]

ISPRS Journal of Photogrammetry and Remote Sensing, 2014
This paper is focused on deformation monitoring using the Ground-Based SAR (GBSAR) technique and a particular data acquisition configuration, which is called discontinuous GBSAR (D-GBSAR). In the most commonly used GBSAR configuration, the radar is left installed in situ, acquiring data periodically, e.g. every few minutes.
Michele Crosetto, Oriol Monserrat, Guido Luzi, María Cuevas-González, Núria Devanthéry   +4 more
openaire   +1 more source

Vision-Based Bridge Deformation Monitoring [PDF]

Frontiers in Built Environment, 2017
Optics-based tracking of civil structures is not new, due to historical application in surveying, but automated applications capable of tracking at rates that capture dynamic effects are now a hot research topic in structural health monitoring. Recent innovations show promise of true non-contacting monitoring capability avoiding the need for physically
brownjohn, James, Xu, Yan, Hester, David
openaire   +3 more sources

Deformation Monitoring Using Satellite Radar Interferometry [PDF]

2020 IEEE Latin American GRSS & ISPRS Remote Sensing Conference (LAGIRS), 2020
Abstract. The paper is focused on the Persistent Scatterer Interferometry (PSI) technique. First, it addresses the substantial evolution of PSI in the last twenty years. Three main factors are identified: the availability of SAR images, the development of advanced data processing techniques, and the increase of the computation capability.
M. Crosetto, L. Solari
openaire   +4 more sources

Optical fiber sensors for coal mine shaft integrity and equipment condition monitoring [PDF]

, 2019
Shaft is an important structure of mine. Deep mining increases mine pressure, induces shaft deformation and affects mine normal lifting. How to improve the inspection efficiency, reduce the maintenance cost and ensure the normal operation of the shaft is
Fu, J., Grattan, K. T. V., Hu, B., Li, Y., Liu, T., Liu, X., Ma, G., Wang, G., Zhang, H., Zhu, F.   +9 more
core   +1 more source

Deformation Monitoring Using Satellite Methods

Geodetski glasnik, 2020
Deformation monitoring using Global Navigation Satellite Systems (GNSS) is a reliable technique today but requires strict standards in data processing and analysis. The procedure for determining the precise positioning and deformation analysis in the test network located nearby the Olympic stadium Koševo in Sarajevo, with an area of about 1 km square ...
Esad Vrce, Džanina Omićević, Dževad Krdžalić   +2 more
openaire   +2 more sources

Keeping watch over Colombia’s slumbering volcanoes [PDF]

, 2015
The Volcanological and Seismological Observatories of Manizales, Pasto and Popayan (Colombian Geological Survey) monitor and study the active volcanoes of Colombia using seismological, geodetic, geochemical and other techniques.
BATTAGLIA, MAURIZIO, C. López, D. Arcos, J. Alpala, L. Narváez, Ordoñez, M.   +5 more
core   +1 more source

Optical equipment for measuring deformation of machine tool components [PDF]

, 2016
This paper describes the possibilities of measuring deformation of machine tool components based on monitoring change in the optical beam path. Deformation is evaluated relatively between an optical beam source and a sensing element.
Chládek Š., Diviš I., Koubek J., Švéda J.   +3 more
core   +1 more source

Analysis of the applicability of singlemode optical fibers for measurement of deformation with distributed systems BOTDR [PDF]

, 2016
Distributed optical fiber sensors allow monitoring physical effects across the whole cable. The paper presents results obtained from the performed tests and shows that single mode fibers can provide analyses of the deformation changes, when distributed ...
Bednárek, Lukáš, Fajkus, Marcel, Frnda, Jaroslav, Nedoma, Jan, Vašinek, Vladimír   +4 more
core   +2 more sources