Dynamic monitoring of a mobile telecommunications tower with a bi-axial optical FBG accelerometer

Paulo Antunes; Rui Travanca; Humberto Varum; Paulo André

doi:10.1117/12.892216

26 July 2011 Dynamic monitoring of a mobile telecommunications tower with a bi-axial optical FBG accelerometer

Paulo Antunes, Rui Travanca, Humberto Varum, Paulo André

Author Affiliations +

Proceedings Volume 8001, International Conference on Applications of Optics and Photonics; 800148 (2011) https://doi.org/10.1117/12.892216
Event: International Conference on Applications of Optics and Photonics, 2011, Braga, Portugal

Abstract

In this work, the structural health monitoring of a self-supported steel tower with 50 meters high used for mobile communications are presented. For this test, a fiber Bragg grating based biaxial horizontal accelerometer was used to obtain the structure frequencies. The frequencies for the first resonant modes were obtained from the acceleration data recorded over time, resulting from the application of mechanical horizontal impulses on the tower. The results shown that the frequencies measured in both directions are within the values expected for this type of structure and can be used to calibrate numerical models that represent their structural behavior.

Citation Download Citation

Paulo Antunes, Rui Travanca, Humberto Varum, and Paulo André "Dynamic monitoring of a mobile telecommunications tower with a bi-axial optical FBG accelerometer", Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 800148 (26 July 2011); https://doi.org/10.1117/12.892216

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