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Proceedings 2017, 1(4), 396; doi:10.3390/proceedings1040396

Microstructure for Thermal Impedance Spectroscopy for Biofuel Composition Measurement

1
Electronic Instrumentation Lab., Department of microelectronics, Faculty of EEMCS, Delft University of Technology, Delft, 2628 CD, The Netherlands
2
Ford Motor Company, Research and Advanced Engineering, Dearborn, MI-48124, USA
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 17 August 2017
Download PDF [699 KB, uploaded 13 October 2017]

Abstract

Thermal impedance spectroscopy has been investigated as a non-destructive technique to determine the composition of ternary mixtures of biofuels. The principle of the thermal conductivity detector has been extended for measuring both the thermal conductivity and the thermal capacity of biofuel in the range between 1 to 100 Hz, using an AC-operated polysilicon heater for injecting a sinusoidal heat flux, and another polysilicon strip at a well-defined spacing or thermopile sensors for measuring the in-phase and quadrature components of the resulting AC temperature difference.
Keywords: thermal impedance spectroscopy; ternary mixture; thermal conductivity; thermopile sensors; thermal conductivity detector thermal impedance spectroscopy; ternary mixture; thermal conductivity; thermopile sensors; thermal conductivity detector
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jiang, B.; Ghaderi, M.; Bossche, A.; Visser, J.H.; Wolffenbuttel, R.F. Microstructure for Thermal Impedance Spectroscopy for Biofuel Composition Measurement. Proceedings 2017, 1, 396.

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