A customized stand-alone photometric Raman sensor applicable in explosive atmospheres: a proof-of-concept study

This paper presents an explosion-proof two-channel Raman photometer designed for chemical process monitoring in hazardous explosive atmospheres. Due to its design, alignment of components is simplified and economic in comparison to spectrometer systems. Raman spectrometers have the potential of beco...

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Bibliographic Details
Published in:Journal of sensors and sensor systems 2018-10, Vol.7 (2), p.543-549
Main Authors: Nachtmann, Marcel, Keck, Shaun Paul, Braun, Frank, Eckhardt, Hanns Simon, Mattolat, Christoph, Gretz, Norbert, Scholl, Stephan, Radle, Matthias
Format: Article
Language:English
Subjects:
Analysis
Atmospheres
Design and construction
Detectors
Embedded sensors
Ethanol
Excitation
Hydrogen peroxide
Image detection
Monitoring
Organic chemistry
Photometers
Photometry
Photon avalanches
Photon counters
Photons
Pixels
Raman spectra
Sensitivity
Sensors
Spectrometers
Technology assessment
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Summary:This paper presents an explosion-proof two-channel Raman photometer designed for chemical process monitoring in hazardous explosive atmospheres. Due to its design, alignment of components is simplified and economic in comparison to spectrometer systems. Raman spectrometers have the potential of becoming an increasingly important tool in process analysis technologies as part of molecular-specific concentration monitoring. However, in addition to the required laser power, which restricts use in potentially explosive atmospheres, the financial hurdle is also high. Within the scope of a proof of concept, it is shown that photometric measurements of Raman scattering are possible. The use of highly sensitive detectors allows the required excitation power to be reduced to levels compliant for operation in potentially explosive atmospheres. The addition of an embedded platform enables stable use as a self-sufficient sensor, since it carries out all calculations internally.
ISSN:2194-878X
2194-8771
2194-878X
DOI:10.5194/jsss-7-543-2018