Abstract
A brief analysis of facilities for nondestructive testing with the use of a contactless EMA method of exciting and detecting ultrasonic vibrations has been performed. A universal electromagnetic-acoustic (EMA) attachment for standard ultrasonic flaw detectors and thickness gages is described. The characteristics of the attachment and its main components—devices for generating radio signals, a generator of probe pulses, a preamplifier, a generator of biasing pulses, and EMA transducers—are presented. Examples of the use of this attachment are given.
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Original Russian Text © A.N. Astaf’ev, O.V. Nevolin, A.M. Mamai, O.V. Mutyachenko, N.A. Astaf’ev, V.O. Nevolin, 2006, published in Defektoskopiya, 2006, Vol. 42, No. 7, pp. 73–82.
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Astaf’ev, A.N., Nevolin, O.V., Mamai, A.M. et al. A universal attachment for standard ultrasonic flaw detectors and thickness gages. Russ J Nondestruct Test 42, 474–480 (2006). https://doi.org/10.1134/S1061830906070072
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DOI: https://doi.org/10.1134/S1061830906070072