Microstructure for Thermal Impedance Spectroscopy for Biofuel Composition Measurement

Conference paper (2017)

Authors

Bo Jiang Student
M. Ghaderi Electronic Instrumentation - EEMCS
A. Bossche Electronic Instrumentation - EEMCS
Jaco Visser Ford Motor Company
Reinoud Wolffenbuttel Electronic Instrumentation - EEMCS
Research Group
Electronic Instrumentation (EEMCS) (TU Delft)
Copyright: © 2017 Bo Jiang, M. Ghaderi, A. Bossche, Jaco H. Visser, R.F. Wolffenbuttel
DOI: https://doi.org/10.3390/proceedings1040396
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Published Date

2017

Language

English

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Instrumentation

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.