How to Use Fiber Optic Sensors for Accurate Absolute Measurements - INVITEDOrlando Frazão, Paulo Robalinho, António Vaz, Liliana Soares, Beatriz Soares, Catarina Monteiro, Susana Novais and Susana SilvaEPJ Web Conf., 287 (2023) 09008DOI: https://doi.org/10.1051/epjconf/202328709008