We describe hybrid distributed optical fiber sensor schemes for temperature, strain and vibration measurements. In particular, we first introduce the use of cyclic Simplex coding in hybrid Raman/BOTDA distributed sensors for fast long-distance strain and simultaneous temperature measurements over the same SMF, using a single narrowband source. The same advanced coding technique is also proposed to demonstrate a hybrid distributed acoustic and temperature sensor (DATS) based on Raman and coherent Rayleigh scattering processes in a standard SMF, using a single commercial off-the-shelf DFB laser and a common receiver block.

Hybrid distributed optical fiber sensors for temperature, strain and vibration measurements

MUANENDA, Yonas Seifu;OTON NIETO, CLAUDIO JOSE;NANNIPIERI, Tiziano;SIGNORINI, Alessandro;FARALLI, STEFANO;DI PASQUALE, Fabrizio Cesare Filippo
2015-01-01

Abstract

We describe hybrid distributed optical fiber sensor schemes for temperature, strain and vibration measurements. In particular, we first introduce the use of cyclic Simplex coding in hybrid Raman/BOTDA distributed sensors for fast long-distance strain and simultaneous temperature measurements over the same SMF, using a single narrowband source. The same advanced coding technique is also proposed to demonstrate a hybrid distributed acoustic and temperature sensor (DATS) based on Raman and coherent Rayleigh scattering processes in a standard SMF, using a single commercial off-the-shelf DFB laser and a common receiver block.
2015
9781467369817
9781467369817
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11382/511053
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