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Proceedings Paper

Determination of the water content in petroleum products using terahertz transmission spectroscopy
Author(s): Stefan Gorenflo; Ulrike Tauer; Iliyana Hinkov; Armin Lambrecht; Hanspeter Helm
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Paper Abstract

The water content in polyglycol oils is investigated by Terahertz Time-Domain Spectroscopy (THz-TDS). These oils are able to dissolve a certain percentage of water. Changes in the absorption coefficient and refractive index are observed related to the amount of water added to the pure oils. Comparison of the experimental data with predictions based on Beer-Lambert and Lorentz-Lorenz-theory, respectively, exhibits an excellent agreement. Analyses with Fourier Transform Infrared (FTIR) Spectroscopy reveal sensitivity similar to the THz-TDS experiment. THz-TDS may offer powerful tools to quantitatively determine the water concentration in petroleum products.

Paper Details

Date Published: 7 March 2006
PDF: 10 pages
Proc. SPIE 6120, Terahertz and Gigahertz Electronics and Photonics V, 61200L (7 March 2006); doi: 10.1117/12.644495
Show Author Affiliations
Stefan Gorenflo, Fraunhofer Institute for Physical Measurement Techniques (Germany)
Ulrike Tauer, Fraunhofer Institute for Physical Measurement Techniques (Germany)
Iliyana Hinkov, Fraunhofer Institute for Physical Measurement Techniques (Germany)
Armin Lambrecht, Fraunhofer Institute for Physical Measurement Techniques (Germany)
Hanspeter Helm, Albert-Ludwigs Univ. Freiburg (Germany)


Published in SPIE Proceedings Vol. 6120:
Terahertz and Gigahertz Electronics and Photonics V
R. Jennifer Hwu; Kurt J. Linden, Editor(s)

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