Analysis Technique for the Spectral Characteristic of Acoustic Emission Signals

Abstract:

AE method of nondestructive check is based on exertion waves radiation and their registration during fast local material structure reorganization. It is used as a means of analysis of materials, constructions, productions control and diagnosis during operating time. When registering signal amplitude it is required to consider its frequency distribution connecting each amplitude rate with the corresponding vibration rate. With the purpose to reduce the measurement error it is required to perform receiving piezoelectric converters calibration right on the tested unit and in the process of test analysis consider “unit-converter” transfer characteristic.

• Periodical: Advanced Materials Research (Volume 663)
• Pages: 503-506
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.663.503
• Online since: February 2013
• Authors: Hong Wu Qin, Hai Fu Li, Qin Sheng Du
• Keywords: AE, Ni, Piezoelectric Transducer, Spectral Characteristics

References

[1] Pollok A. Acoustic emission testing. Metals handbook. Sedition. 17 vol. AST International, 1989. pp.278-294.

[2] Terchi A, Au Y H J. Acoustic emission signal processing [J]. Measurement and Control. 2001, 4(8): 240-244.

DOI: 10.1177/002029400103400804

[3] MITRAKOVIC D, GRABEC I, SEDMAK S. Simulation of AE signals and signal analysis systems [J]. Ultrasonics. 1985, 23: 227-232.

DOI: 10.1016/0041-624x(85)90018-6

[4] RAVINDRA H V. Some aspects of acoustic emission signal processing [J]. Journal of Materials Processing Technology. 2001, 109: 242～247.

DOI: 10.1016/s0924-0136(00)00805-0

[5] MURTHY C R L. Application of pattern recognition concepts to acoustic emission signals analysis [J].J. Acoustic Emission. 1987, 6(1): 19-28.

[6] JEONG H, JANG Y S. Wavelet analysis of plate wave propagation in composite laminates [J]. Composite Structures, 2000, 49: 443-450.

DOI: 10.1016/s0263-8223(00)00079-9