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Proceedings Paper

Fourier transform infrared spectrometer using delta-sigma modulation for high dynamic-range spectrometry
Author(s): Kei-ichiroh Minami
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Paper Abstract

Application of delta-sigma modulation (AE) to Fourier transform infrared (FT- IR) spectrometer is presented. This quantization features sampling of aninterferogram at a rate higher than the Nyquist rate and a nonlinear feedbacksystem with the 1-bit quantizer. The experimental results of IR absorptionmeasurement demonstrate the practicality of the proposed method. Thedynamic-range with this method can exceed over the limit of ordinary A/Dconverter.

Paper Details

Date Published: 30 August 1993
PDF: 2 pages
Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210468 (30 August 1993); doi: 10.1117/12.2298656
Show Author Affiliations
Kei-ichiroh Minami, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 2104:
18th International Conference on Infrared and Millimeter Waves
James R. Birch; Terence J. Parker, Editor(s)

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