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Sensors 2009, 9(5), 3256-3268; doi:10.3390/s90503256

Comparison of Low Cost Miniature Spectrometers for Volcanic SO2 Emission Measurements

Department of Geography, University of Sheffield, Sheffield, S10 2TN, UK
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Author to whom correspondence should be addressed.
Received: 17 March 2009 / Revised: 28 April 2009 / Accepted: 28 April 2009 / Published: 28 April 2009
(This article belongs to the Section Remote Sensors)
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Abstract

Miniature ultraviolet USB coupled spectrometers have become ubiquitously applied over the last decade for making volcanic SO2 emission rate measurements. The dominantly applied unit has recently been discontinued however, raising the question of which currently available devices should now be implemented. In this paper, we consider, and make recommendations on this matter, by studying a number of inexpensive compact spectrometers in respect of measurement performance and thermal behaviour. Of the studied units, the Avaspec demonstrated the best prospects for the highest time resolution applications, but in the majority of cases, we anticipate users likely preferring the less bulky USB2000+s. View Full-Text
Keywords: ultraviolet spectrometers; volcanic SO2 monitoring; differential optical absorption spectroscopy ultraviolet spectrometers; volcanic SO2 monitoring; differential optical absorption spectroscopy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Kantzas, E.P.; McGonigle, A.J.S.; Bryant, R.G. Comparison of Low Cost Miniature Spectrometers for Volcanic SO2 Emission Measurements. Sensors 2009, 9, 3256-3268.

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