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Measurement of seawater salinity by refractometric methods - Couverture souple

Børve, Kristian

 
9783639775945: Measurement of seawater salinity by refractometric methods
Couverture souple
ISBN 10 : 3639775945 ISBN 13 : 9783639775945
Editeur : GlobeEdit, 2014

Synopsis

The aim of this book has been to design and test a refractometer for accurate measurement of seawater refractive index. The goal was to create a refractometer with a cylindrical embodiment and measure refractive indices with an accuracy of 10−6 refractive index units (RUI). The realization of the instrument resulted in a measurement chamber consisting of a cylindrical glass tube with an inner radius if 4 mm, thickness of 1 mm and length of 115 mm. To transverse the laser beam into the glass cylinder in a satisfactory way, the beam is directed by mirrors submerged in an immersion oil. The oil functions as a “compensating” medium between the air-glass interface and was only used because desired embodiments were not available. The final refractometer design was decided after rigorous computer simulations. The experiments were conducted by measuring the laser beam displacement of sodium chloride solutions, with salinities ranging from 0 to 40 parts per thousand. The results revealed that the instrument was able to short-term measurements with an accuracy of 1.5⋅10−5 RIU, but poor repeatability of the instrument decreased the the overall accuracy to 2.9⋅10−4 RIU.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

The aim of this book has been to design and test a refractometer for accurate measurement of seawater refractive index. The goal was to create a refractometer with a cylindrical embodiment and measure refractive indices with an accuracy of 10−6 refractive index units (RUI). The realization of the instrument resulted in a measurement chamber consisting of a cylindrical glass tube with an inner radius if 4 mm, thickness of 1 mm and length of 115 mm. To transverse the laser beam into the glass cylinder in a satisfactory way, the beam is directed by mirrors submerged in an immersion oil. The oil functions as a “compensating” medium between the air-glass interface and was only used because desired embodiments were not available. The final refractometer design was decided after rigorous computer simulations. The experiments were conducted by measuring the laser beam displacement of sodium chloride solutions, with salinities ranging from 0 to 40 parts per thousand. The results revealed that the instrument was able to short-term measurements with an accuracy of 1.5⋅10−5 RIU, but poor repeatability of the instrument decreased the the overall accuracy to 2.9⋅10−4 RIU.

Biographie de l'auteur

Kristian Børve (born 1987 Odda, Norway) started his physics education at the University in Bergen in 2006. During the period autumn 2012 to autumn 2013 he wrote and completed his book: "Measurement of seawater salinity by refractometric methods".

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
GlobeEdit
Date d'édition
2014
Langue
anglais
ISBN 10 
3639775945
ISBN 13 
9783639775945
Reliure
Broché
Nombre de pages
112
Coordonnées du fabricant
non disponible
Personne responsable
non disponible