Hadamard-Transform Exhaust-Analysis Spectrometer
Applied Optics, Vol. 10, Issue 1, pp. 24-27 (1971)
http://dx.doi.org/10.1364/AO.10.000024
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Abstract
We propose a novel instrument for automobile exhaust analysis based on a Hadamard-transform spectrometer, which would be able to make accurate measurements of the concentration of several pollutants simultaneously, would be operated by unskilled personnel, and would complete a measurement scan in less than 1 sec.
Citation
J. A. Decker, Jr, "Hadamard-Transform Exhaust-Analysis Spectrometer," Appl. Opt. 10, 24-27 (1971)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-10-1-24
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