Title :
Improving non-destructive testing probe performance by digital processing techniques
Author :
Bernieri, Andrea ; Betta, Giovanni ; Ferrigno, Luigi
Author_Institution :
DAEIMI, Cassino Univ., Italy
Abstract :
The paper proposes a novel probe for non-destructive testing (NDT) based on eddy currents. The novelty of the probe is in the digital processing algorithms used to extract field information from rough voltage data. The digital signal processing algorithm as well as the working parameters of the NDT probe were experimentally optimized looking for the best compromise between sensitivity and accuracy. Tests carried out on specimen with known cracks highlight the capability of the probe in correctly identifying the crack location and characteristics
Keywords :
coils; computerised instrumentation; crack detection; data acquisition; eddy current testing; electrical engineering computing; magnetic sensors; physics computing; signal processing; DAQ; accuracy; automatic measurement system; coils; crack location; digital processing algorithms; eddy current testing; fluxset sensor; improved NDT probe performance; magnetic transducers; rough voltage data; sensitivity; soft magnetic materials; Digital signal processing; Eddy current testing; Magnetic field measurement; Magnetic materials; Magnetic sensors; Nondestructive testing; Probes; Sensor phenomena and characterization; Signal processing algorithms; Soft magnetic materials;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928283
