S. A. Bekher, T. V. Sych

RESEARCH METHODOLOGY FOR ESTIMATING THE AMPLITUDE-FREQUENCY CHARACTERISTICS OF PIEZOELECTRIC SENSORS BY USING A MECHANICAL SOURCE OF CONTINUOUS NOISE

Experimental results of amplitude-frequency response for acoustic emission sensors are obtained by using a mechanical source of continuous noise. The amplitude-frequency characteristics of a calibrated transducer are analyzed during the registration of longitudinal, surface and Lamb waves. Experimental characteristics of different-type bandpass sensors installed on the object are discussed.

References:

1. GOST R 52727-2007. Technical Diagnostics. Acoustic-Emission Diagnostics. General Requirements. M., Standartinform Publ., 2007, 18 p. (In Russian).
2. PB 03-593-03. Rules for Organization and Implementation of Acoustic-Emission Testing of Vessels, Apparatuses, Boilers and Process Piping, 2003. (In Russian).
3. , 01.10.1999, 1999. (In Russian).
4. Stepanova L.N., Grossman S.A., Kabanov S.I., Bobrov A.L., Bekher S.A., Bolchanov A.A. Acoustic-emission testing of solebars with boxlike cross sections. Russian Journal of Nondestructive Testing, vol. 47, no. 3, pp. 158–163. DOI: 10.1134/S1061830911030090.
5. Sych T.V., Gerasimov S.I., Bekher S.A. Acoustic head, RF Patent 152495, 2015. (In Russian).
6. Sych T.V., Bekher S.A., Bobrov A.L. A method for relative calibration of acoustic emission transducers. RF Patent 2554320, 2015, 7 p. (In Russian).

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