Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter
}
TY - CHAP
T1 - Eddy current measurement of the electrical conductivity and porosity of metal foams.
AU - Ma, X.
AU - Peyton, A. J.
PY - 2004/11/8
Y1 - 2004/11/8
N2 - This paper presents results of characterising the properties of metallic foams, a relatively new class of material, using nondestructive eddy-current sensing techniques. The fundamentals of eddy current sensing, which is based on electromagnetic induction, are described and the effects on coil impedance of the sensors numerically analysed. It has been found that the phase-frequency response of the sensor is relatively immune to the distance and fill-factor variations, from which key results such as the equivalent conductivity and the porosity of the foams are presented. The paper demonstrates the broad applicability of this technique in characterising and further recognizing the properties of a variety of sample shapes used.
AB - This paper presents results of characterising the properties of metallic foams, a relatively new class of material, using nondestructive eddy-current sensing techniques. The fundamentals of eddy current sensing, which is based on electromagnetic induction, are described and the effects on coil impedance of the sensors numerically analysed. It has been found that the phase-frequency response of the sensor is relatively immune to the distance and fill-factor variations, from which key results such as the equivalent conductivity and the porosity of the foams are presented. The paper demonstrates the broad applicability of this technique in characterising and further recognizing the properties of a variety of sample shapes used.
KW - Electromagnetic induction
KW - eddy current
KW - coil impedance
KW - metallic foam
U2 - 10.1109/IMTC.2004.1351012
DO - 10.1109/IMTC.2004.1351012
M3 - Chapter
SN - 0-7803-8248-X
VL - 1
SP - 127
EP - 132
BT - Proceedings of the IEEE Instrumentation and Measurement Technology Conference, 2004. IMTC 04.
PB - IEEE
ER -