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Hydrophones based on optical fiber technology are a promising alternative to ceramic detectors, when immunity to electromagnetic noise and low electromagnetic signature are a key requirement. In the present paper we analyze both through multi-physics finite element modeling via COMSOL Multiphysics and experimental test in an equipped pool some sensor configurations with the aim of developing quite...
We present the experimental activity on the development of a Fiber Bragg Grating (FBG) strain sensor for volcano monitoring. We produced and tested a prototype of FBG strain sensor, with a high resolution and accuracy in static measurements and with a low-cost readout system. Here we present the results of a field campaign with a preliminary single-axis FBG strain sensor prototype on Mt. Etna, which...
The NEMO collaboration proposes to build an underwater neutrino telescope located South-East off the Sicily coast. This paper describes the concepts underlying the communication link design going over the whole data acquisition and transport from the front-end electronics to the module sending data on-shore through a fiber optic link which relies on Dense Wavelength Division Multiplexing. An on-shore...
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