Heidelberg 2015 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 3: Meßtechnik
UP 3.3: Vortrag
Mittwoch, 25. März 2015, 18:00–18:15, G/gHS
A Fabry-Perot interferometer-based Camera for SO2 detection — •Jonas Kuhn1, Nicole Bobrowski1, Peter Lübcke1, Denis Pöhler1, Jan-Lukas Tirpitz1, Leif Vogel2, and Ulrich Platt1 — 1Institute of Environmental Physics, University of Heidelberg, Heidelberg, Germany — 2Earth Observation Science, Space Research Centre, University of Leicester, Leicester, UK
The SO2 camera is becoming an established tool for measuring two-dimensional SO2 column density distributions at volcanoes with a high temporal resolution. Transport and dilution processes are visualized and SO2 emission fluxes can be determined on a very short timescale. However, these major advantages go together with a simplified identification principle that is far less accurate than conventional remote sensing trace gas measurements with only one viewing direction. By using a Fabry-Perot interferometer in a new camera design, the SO2 selectivity and sensitivity can be improved substantially. We present first laboratory measurements of a one pixel prototype of a Fabry-Perot interferometer-based SO2 camera. In addition, different possible implementations of an imaging device are proposed.