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What is the best displacement transducer for a seismic sensor?

This paper presents a development of a seismic sensor for the future Compact Linear Collider (CLIC). Sensor in which three different types of sub-nanometre displacement transducers have been integrated: a Fabry-Pérot interferometer, an optical encoder and a capacitive transducer. This sensor allows...

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Detalles Bibliográficos
Autores principales: Novotny, Peter, Aimard, Benjamin, Balik, Gael, Brunetti, Laurent, Caron, Bernard, Gaddi, Andrea
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.1109/ISISS.2017.7935672
http://cds.cern.ch/record/2316022
Descripción
Sumario:This paper presents a development of a seismic sensor for the future Compact Linear Collider (CLIC). Sensor in which three different types of sub-nanometre displacement transducers have been integrated: a Fabry-Pérot interferometer, an optical encoder and a capacitive transducer. This sensor allows us to compare the resolution of all the transducers under the same conditions, thus enabling us to verify the most suitable transducer for a seismic sensor. The best resolution of 28.8 pm was achieved with the optical encoder. This in combination with ease of installation makes it an ideal candidate for a seismic senor for CLIC.