Title :
Non-contact EM measurement of the properties of power station steels taken from service
Author :
Karimian, N. ; Yin, Wenlong ; Liu, Jiangchuan ; Hao, X.J. ; Strangwood, M. ; Davis, C.L. ; Peyton, Anthony J.
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
Analysis of the electromagnetic properties of power station steels, measured using a non-contact EM sensor, is of significance as such properties are indicative of the microstructure of the material. In this paper, we present the measurement of cylindrical power station steel samples (namely P91 and P9 grades) in different conditions. Initially the B-H curves of these steel samples were measured. Then printed circuit board (PCB) coil integrated sensors were used to measure the incremental permeability. Analytical and numerical methods (Finite Elements Methods) were employed to calculate the sensor response of these samples. Experimental results were obtained for a range of samples and their electromagnetic properties inferred by fitting finite element models to the measured results.
Keywords :
electric sensing devices; electromagnetic devices; finite element analysis; magnetic permeability; magnetic sensors; printed circuits; steel; B-H curves; P9 grades; P91 grades; coil integrated sensors; electromagnetic properties; finite elements methods; incremental permeability; noncontact EM measurement; power station steels; printed circuit board; Coils; Frequency measurement; Inductance; Microstructure; Permeability; Power generation; Steel; Analytical models; Electromagnetic properties; Electromagnetic sensors; FEM; Power station steels;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2013 IEEE International
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4673-4621-4
DOI :
10.1109/I2MTC.2013.6555679
