Comparative Analysis of Deformation Determination by Applying Fiber-optic 2D Deflection Sensors and Geodetic Measurements

Marko Z Marković; Jovan S Bajić; Mehmed Batilović; Zoran Sušić; Ana Joža; Goran M Stojanović

doi:10.3390/s19040844

Comparative Analysis of Deformation Determination by Applying Fiber-optic 2D Deflection Sensors and Geodetic Measurements

Sensors (Basel). 2019 Feb 18;19(4):844. doi: 10.3390/s19040844.

Authors

Marko Z Marković¹, Jovan S Bajić², Mehmed Batilović³, Zoran Sušić⁴, Ana Joža⁵, Goran M Stojanović⁶

Affiliations

¹ Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, Novi Sad 21101, Serbia. marko_m@uns.ac.rs.
² Department of Power, Electronic and Telecommunication Engineering, Faculty of Technical Sciences, University of Novi Sad, Novi Sad 21101, Serbia. bajic@uns.ac.rs.
³ Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, Novi Sad 21101, Serbia. mehmed@uns.ac.rs.
⁴ Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, Novi Sad 21101, Serbia. zsusic@uns.ac.rs.
⁵ Department of Power, Electronic and Telecommunication Engineering, Faculty of Technical Sciences, University of Novi Sad, Novi Sad 21101, Serbia. anajoza@uns.ac.rs.
⁶ Department of Power, Electronic and Telecommunication Engineering, Faculty of Technical Sciences, University of Novi Sad, Novi Sad 21101, Serbia. sgoran@uns.ac.rs.

Abstract

In the paper the description of an experiment for a comparative analysis of two different methods for deformation determination, geodetic and 2D deflection sensors based on fiber-optic curvature sensors (FOCSs) is given. The experiment is performed by a using specially designed assembly which makes it possible to apply both methods. For performing geodetic measurements, a geodetic micro-network is established. Measurements by applying a 2D deflection sensor and three total stations are carried out for comparison. The data processing comprises graphical and numerical analysis of the results. Based on the presented results the potential of 2D deflection sensor application in structural health monitoring (SHM) procedures is indicated. The analysis of the measurement results also indicates the importance of integrating various types of sensors for obtaining more accurate and more reliable deformation measurements results.

Keywords: deformation analysis; displacement; fiber-optic curvature sensor; measurements; total station.