Fourier transform infrared spectrometer using delta-sigma modulation for high dynamic-range spectrometry

Kei-ichiroh Minami

doi:10.1117/12.2298656

30 August 1993 Fourier transform infrared spectrometer using delta-sigma modulation for high dynamic-range spectrometry

Kei-ichiroh Minami

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 210468 (1993) https://doi.org/10.1117/12.2298656
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

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.

Citation Download Citation

Kei-ichiroh Minami "Fourier transform infrared spectrometer using delta-sigma modulation for high dynamic-range spectrometry", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210468 (30 August 1993); https://doi.org/10.1117/12.2298656

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