Temperature and pressure transducer based on FBG for large diameter water pipes
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AuthorQuintela Incera, Antonio; Pallol Pérez, María José; Shokry Girgis Roufael, Hany; Martínez García, Óscar; San Emeterio Diego, José Domingo; López Higuera, José Miguel
A specific temperature and pressure optical fiber transducer is presented in this paper. By using a customized fiber reinforced plastic membrane with embedded Fiber Bragg Gratings, the fluid pressure and temperatures changes are converted in optical wavelength displacements. The membrane and the transducer custom design allows a suitable measurand discrimination. The transducer is implemented, characterized and calibrated. Its feasibility to be used on large diameter water pipes has been successfully validated by means of field trials. Many of these transducers will be optically multiplexed to monitoring these infrastructures.