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Petihakis, George; Haller, Michael; Petersen, Wilhelm; Nair, Rajesh; Seppälä, Jukka; Salvetat, Florence. |
The main goal of work package 4 is to increase the performance of oceanographic observatories in Europe. One major point is the formulation and the evaluation of best practises of sensor calibration. This is an issue of great interest for institutions dealing with different (automated) observation systems. So, this report is providing information about the best practises for sensor calibration of different types of sensors. Each sensor type has typical characteristics, which have to be addressed when calibration routine has to be applied to the sensor. This is outlined in the next sections for the different sensor types. However, there are also several general advices for sensor calibration which are valid for any sensor when reliable sensor data are... |
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Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00386/49740/50262.pdf |
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Salvetat, Florence. |
Complemental to the first FCT workshop, the metrology laboratory of Ifremer Centre de Bretagne carried out a calibration experiment from the 8th to the 12th of October 2012. This experiment was promoted by the Jerico European project (JOINT EUROPEAN RESEARCH INFRASTRUCTURE NETWORK FOR COASTAL OBSERVATORIES), in the framework of a collaborative work proposed by the workpackage 4, “Maintenance and Calibration”, and the “Forum for Coastal Technologies”. The purpose of this experiment was to compare the calibration methods used by different institutes or firms within an inter-laboratory comparison (ILC). In terms of metrology, this comparison will allow the laboratories to assess their performance with respect to the calibration of their sensors. The... |
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Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00215/32596/31060.pdf |
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Lamandé, Nolwenn; Salvetat, Florence; Le Bihan, Caroline; Delauney, Laurent. |
Cet article présente la méthode spectrophotométrique mise en place au laboratoire de métrologie de l’fremer, afin de déterminer le pHT de l’eau de mer grâce à l’indicateur coloré pourpre de m-cresol. Le but est de décrire précisément cette méthode (matériel et mode-opératoire), ses difficultés, ainsi que les paramètres ayant un impact sur le pHT. Les résultats d’une comparaison inter-laboratoires menée par le JAMSTEC (Japan Agency for Marine-Earth Science and Technology) seront présentés, suivis d’une réflexion portant sur cette méthode ainsi que les exigences océanographiques mises en jeu. |
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Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00479/59093/61731.pdf |
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Le Bihan, Caroline; Salvetat, Florence; Lamande, Nolwenn; Compere, Chantal. |
This paper presents a study on the calibration of conductivity sensors. The puropse is to demonstrate the effect of the salinity concentration on the response of conductivity sensor. Several experiments are performed on three sensors of different technologies: a Seabird Sbe37-SIP MicroCAT, a Falmouth Scientific Inc. IMCTD-MBP-D and a NKE Instrumentation Smatch. The analysis of the results shows an overall impact of the salinity level on the sensor response. This effect is discussed regarding the oceanographic requirements. |
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Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00260/37143/35668.pdf |
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