Open AccessExploring interaction effects in two-component gas mixtures using orthogonal signal correction of ultrasound pulses
Author(s) -
Johan E. Carlson,
Pär-Erik Martinsson
Publication year - 2005
Publication title -
the journal of the acoustical society of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.619
H-Index - 187
eISSN - 1520-8524
pISSN - 0001-4966
DOI - 10.1121/1.1893565
Subject(s) - signal (programming language) , ultrasound , materials science , natural gas , principal component analysis , biogas , range (aeronautics) , biological system , component (thermodynamics) , carbon dioxide , pulse (music) , fraction (chemistry) , analytical chemistry (journal) , acoustics , computer science , chemistry , thermodynamics , optics , physics , chromatography , composite material , organic chemistry , ecology , artificial intelligence , detector , biology , programming language
Within Sweden and the EU, an increased use of biogas gas and natural gas is encouraged to decrease emission of carbon dioxide. To support more effective manufacturing, distribution, and consumption of energy gases, new methods for the measurement of the calorimetric value or the gas composition are needed. This paper presents a method to extract and visualize variations in ultrasound pulse shape, caused by interaction effects between the constituents of a two-component gas mixture. The method is based on a combination of principal component analysis and orthogonal signal correction. Pulse-echo ultrasound experiments on mixtures of oxygen and ethane in the concentration range from 20% to 80% ethane show that the extracted information could be correlated with the molar fraction of ethane in the mixture.
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