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A DIRECT QUANTITATIVE MEASURE
K-BGS gas sensors are integrated optical components based on Bragg Gratings photo-inscribed in a single mode optical waveguide. They form today the only method, through an all optic method, of direct detection and quantification of gas density in a confined environment. Its in-line design facilitates the integration of several of these sensors as an array and allows real time monitoring of variours types of gas on industrial facilities.
A generic optical solution
A K-GBS sensor operates according the principle of a Bragg grating associated with an active layer sensitive to the choosen gas to be detected. When the gas is adsorbed, this changes the optical response of the Bragg grating. This induced modification is directly proportionnal to the gas quantity present within the sensor's environment. A K-BGS sensor type is a generic optical solution, meeting ATEX requirements, and allowing to consider the detection of a broad range of gas types, through adaptation of the suitable active layer.
The K-GBS sensor can be installed alone or in series along an optical cable deployed on site. Thanks to a very flexible wiring method, the placement of each sensors is totally free and can be managed according to every installation specifics. Currently, depending on which gas has to be monitored, a dozen of sensors can be deployed along a same detection cable, each monitoring system having the possibility to interrogate from 4 to 8 gas sensing cables.
The K-BGS sensor is a generic and passive optical solution for gas detection, meeting ATEX requirements. It allows, for example, to detect and quantify CH4 concentrations in a confined environment as in a pipeline annular space and therefore to locate and quantify a very weak gas flow. Its response is almost instantaneous (whitout post-processing) and its sensivity enables to report concentrations as low as a few parts per thousands (ppt) in volume.
A complete offer
Kloe has designed and marketed a complete range of optoelectronic interrogators compatible with K-BGS sensors type, the K-BGS Monitoring Units. We offer several monitoring solutions in accordance with applications fields conditions, with site configuration and with the expected density of measurement points. Thereby, units compatible with the monitoring of 10,40 or 80 gas sensors are available. Each of these systems can be packaged into a nomad version to facilitate the on-site portability, or into a static version, in the form of an equipped storage bay, ventilated or air-conditionned.
Kloé a conçu et commercialise une gamme complète d'interrogateurs compatibles avec les capteurs de type K-BGS, les K-BGS Monitoring Units. Nous proposons diverses solutions de monitoring en fonction des domaines d'application, de la configuration du site et de la densité de points de mesure souhaitée. Ainsi, des unités compatibles avec le monitoring de 10, 40 ou 80 capteurs sont disponibles. Chacun de ces systèmes peuvent être conditionnés soit en version nomade pour en faciliter la portabilité sur site, soit en version statique, sous forme d'une baie équipée, ventilée ou climatisée.