Optical fiber sensor for measurement of concrete structure stress

Renato Amaro Zangaro; Landulfo Silveira Jr.; R. Barreto da Silva

doi:10.1117/12.185323

8 September 1994 Optical fiber sensor for measurement of concrete structure stress

Renato Amaro Zangaro, Landulfo Silveira Jr., R. Barreto da Silva

Proceedings Volume 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1994) https://doi.org/10.1117/12.185323
Event: Vibration Measurements by Laser Techniques: First International Conference, 1994, Ancona, Italy

Abstract

In this work we describe an optical sensor to determine the stress applied at a concrete structure. The optical sensor is a monomode fiber optic, that is embedded in the concrete. The principle of these sensors is based on photoelastic effect, that produces a birefringence in the optical fiber and induces a rotation on the polarization angle of the guided polarized light. The photoelastic effect is produced due to a controlled applied charge in the center of the concrete structure. The shift of polarization is analyzed by a polaroid analyzer.

Citation Download Citation

Renato Amaro Zangaro, Landulfo Silveira Jr., and R. Barreto da Silva "Optical fiber sensor for measurement of concrete structure stress", Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); https://doi.org/10.1117/12.185323

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