The newly developed Double Pendulum Interferometer (DPI) with its unique optical design provides the possibility of remote and in situ measurements of exhaust gases in smoke-stacks. The remote configuration is presented in fig. 1. Due to its design the DPI guarantees for - high short and long term stability - insensitivity to external vibration and temperature changes (Ref. 1). The instrument not only identifies the type of gas but also allows a quantitative measurement of gas concentrations (Ref. 2). Fig. 2 gives the computed emission for a high temperature smoke-stack (HF, H20, CO2, and 02) for an in situ configuration. Reg. 1. Jaacks, R. G. and Rippel, H., Double Pendulum Michelson Interferometer with Extended Spectral Resolution, Appl. Opt., Vol. 27, 1988 2. Rippel, H., Quantitative Analysis Software for KT FTIR Instruments, Kayser-Threde, Technical Note, 1988

Date Published: 1 December 1989
PDF: 1 pages
Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); doi: 10.1117/12.969510

Published in SPIE Proceedings Vol. 1145:
7th Intl Conf on Fourier Transform Spectroscopy
David G. Cameron, Editor(s)