2011•Journal of Hefei UniversityRequires access

Study of Carbon Monoxide Concentrations' Detection Based on TDLAS

Yang Te-yu

Abstract

Tunable diode laser absorption spectroscopy(TDLAS) is make use of absorption spectroscopy of gas molecules,it is a new method of trace gas composition and the concentration of atmospheric pollution.Introduced the construct and principle of TDLAS system,analyzed the detection theory of second harmonic signal of gas,established of the model between second harmonic signal of concentrations to be tested and the second harmonic signals of standard gas concentration,the model's accuracy proved to be highly by experiment.

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Available abstract

Key concepts: Tunable diode laser absorption spectroscopy, Harmonic, Absorption (acoustics), SIGNAL (programming language), Carbon monoxide, Spectroscopy, Absorption spectroscopy, Analytical Chemistry (journal)