Title :
An electromagnetic sensing device for microstructural phase determination of steels through non-destructive evaluation
Author :
Roy, R.K. ; Panda, Anup Kumar ; Mitra, Abhijit
Author_Institution :
NDE & Magn. Mater. Group, CSIR-Nat. Metall. Lab., Jamshedpur, India
Abstract :
An electromagnetic sensing device has been developed suitable for measurement of magnetic hysteresis loop (MHL) and Magnetic Barkhausen Emissions (MBE) parameters in a non-destructive way. The system is capable of magnetizing the test sample within the frequency range of 50mHz to 200Hz and has the option of band pass filter with the range of 30kHz to 300kHz for measuring Barkhausen emissions. The system has been demonstrated to evaluate the microstructural character of steel used in super-heater of thermal power plant and has the capability of structural health monitoring of engineering components.
Keywords :
Barkhausen effect; band-pass filters; condition monitoring; electromagnetic devices; magnetic field measurement; magnetic hysteresis; microsensors; nondestructive testing; radiofrequency filters; steel; MBE; MHL measurement; band pass filter; electromagnetic sensing device; frequency 30 kHz to 300 kHz; frequency 50 mHz to 200 Hz; magnetic Barkhausen emission; magnetic hysteresis loop measurement; magnetisation testing; microstructural phase determination; nondestructive testing evaluation; steel; structural health monitoring; thermal power plant; Magnetic field measurement; Magnetic hysteresis; Magnetic separation; Materials; Saturation magnetization; Sensors; Steel; Magnetic Barkhausen Emissions; Non-destructive technique; coercivity; ferro magnetic steels; magnetic hysteresis loop;
Conference_Titel :
Sensing Technology (ICST), 2012 Sixth International Conference on
Conference_Location :
Kolkata
Print_ISBN :
978-1-4673-2246-1
DOI :
10.1109/ICSensT.2012.6461675
