The Noncontact Portable Electromagnetic Acoustic ЭMAT-100 Thickness Gage: Three-Dimensional Imaging of the Acoustic Fields of a Single-Phase Transmitter
Source abstract
Abstract
A noncontact portable electromagnetic acoustic thickness gage that is equipped with a self-contained power supply, developed on the basis of modern digital technologies, and operated with a new highly efficient magnetic-field concentrator designed using modern magnetic materials is considered. The thickness gage has small dimensions and is lightweight, thereby allowing real-time inspection under field conditions to be carried out. The main advantage of this device is its ability to operate on corroded rough surfaces without using a contact liquid. The device can carry out inspection through significantly thick coatings (up to 1.5 mm). The device was tested at OAO Gazprom and at facilities of the Ministry of Railways of the Russian Federation. A new EMA transducer that can operate on corroded thin-walled articles is considered. The theoretical concept of EMA excitation is discussed. Examples of 3D diagrams are plotted for ideal single-phase transducers, thus allowing shift amplitudes to be estimated at points of a plane normal to the transducer axis.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Non-Destructive Testing Techniques · Ultrasonics and Acoustic Wave Propagation · Geophysical Methods and Applications
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References (7)
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1. Suchkov, G.M., The Main Advantage of Electromagnetic-Acoustic Testing Technique, Defektoskopiya, 2000, no. 10, pp. 67–70 [Rus. J. of Nondestructive Testing (Engl. Transl.), 2000, vol. 36, no. 10, p. 760].10.1007/BF02759261 ↗
2. Leshchenko, N.G., Muzhitskii, V.F., and Remezov, V.B., Electromagnetic-Acoustic Transducer, RF Patent no. 31305.
3. Nerazrushayushchii kontrol' i diagnostika (Nondestructive Testing and Diagnostics), Klyuev, V.V., Ed., Moscow: Mashinostroenie, 1995.
4. Berdnikov, V.M., Leshchenko, N.G., Muzhitskii, V.F., Remezov, V.B., and Tret'yak, B.I., Experience of Testing Electromagnetic-Acoustic Thickness Gages of the ЭMAT-100 Type by Railway Enterprises and Oil-and-Gas Industry, Defektoskopiya, 2003, no. 11, pp. 20–24 [Rus. J. of Nondestructive Testing (Engl. Transl.), 2003, vol. 39, no. 11, p. 824].10.1023/B:RUNT.0000023750.15760.bb ↗
5. Komarov, V.A., Muzhitskii, V.F., and Gurevich, S.Yu., Teoriya fizicheskikh polei (The Theory of Physical Fields), Ural. Gos. Univ., 2000.
6. Komarov, V.A. and Muzhitskii, V.F., Otsenka fiziko-mekhanicheskikh svoistv tverdykh tel kvazistatsionarnym elektromagnitnym polem (Evaluation of Physical and Mechanical Properties of Solids by a Quasi-Stationary Electromagnetic Field), Izhevsk: Regulyarnaya i Khaoticheskaya Dinamika.
7. Leshchenko, N.G., Muzhitskii, V.F., and Remezov, V.B., A Device for Acoustical Testing of Products, RF Patent no. 41515, 2004.