Sensor Based on Multiple Fiber Bragg Gratings for Diameter MeasurementVictor Cardoso, Paulo Caldas, M. Giraldi R. Thereza, Orlando Frazão, Claudio Carvalho, João Costa and José L. SantosEPJ Web Conf., 238 (2020) 12013DOI: https://doi.org/10.1051/epjconf/202023812013