caa a22 4500 445371617 CHVBK 20180317142948.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00340-010-4123-6 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4123-6 Towards a two-dimensional concentration and temperature laser absorption tomography sensor system [Elektronische Daten] [V. Kasyutich, P. Martin] The development of a laser absorption spectroscopy sensor system has been described for measurement of two-dimensional (2D) integrated absorbance linear density and temperature distributions. The system incorporates a tunable distributed feedback (DFB) diode laser at 1391.67 nm and a scanning mirror mounted on a moveable carriage, whilst a photodetector and a second scanning mirror are mounted on another moveable carriage. Both carriages move independently along a circular rail with a diameter of 97 cm. The positions of the carriages and the scanning mirrors are controlled by a program via four servomotors. The laser wavelength is scanned over H2O absorption transitions for 11 fan beam projections from five equally spaced points around the circle. 2D images of the integrated absorbance linear density due to water molecules influenced by two heaters were obtained using the algebraic reconstruction technique (the Kaczmarz method). The derived temperature distribution compared well with thermocouple measurements. The experimental results demonstrate that the system based upon a tunable laser absorption sensor can be used for monitoring the 2D distribution of chemical species and temperature in various reactive flow applications. Springer-Verlag, 2010 Laser absorption spectroscopy nationallicence Laser diodes nationallicence Industrial applications nationallicence Flow visualisation and imaging nationallicence Chemical-vapour deposition nationallicence Computed tomography nationallicence Kasyutich V. School of Chemical Engineering and Analytical Science, University of Manchester, M60 1QD, Manchester, UK aut Martin P. School of Chemical Engineering and Analytical Science, University of Manchester, M60 1QD, Manchester, UK aut Applied Physics B Springer-Verlag 102/1(2011-01-01), 149-162 0946-2171 102:1<149 2011 102 340 https://doi.org/10.1007/s00340-010-4123-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4123-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kasyutich V. School of Chemical Engineering and Analytical Science, University of Manchester, M60 1QD, Manchester, UK aut NATIONALLICENCE 700 1- Martin P. School of Chemical Engineering and Analytical Science, University of Manchester, M60 1QD, Manchester, UK aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/1(2011-01-01), 149-162 0946-2171 102:1<149 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer