Abstract
Model studies were carried out using the COMSOL Multiphysics package, aimed at ensuring the forming of a permanent magnet magnetic field at a considerable distance to a ferromagnetic product from its pole, which is necessary to create efficient portable ultrasonic electromagnetic-acoustic transducers of thickness gauges and testing and diagnostic devices. It is theoretically shown and experimentally confirmed that for portable measuring ultrasonic devices it is expedient to set the height of the permanent magnet at about 60 mm and the cross section of the magnet pole 50x50 mm2. At the same time, with a gap between the magnet pole and the product of about 30 mm, the value of the normal component of the magnetic field induction near the surface of the object is about 0.3...0.4 T, which is sufficient for thickness gauging or diagnostics of ferromagnetic products using the ultrasonic pitch-and-catch method. References 19, figures 8.
Publisher
National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications)
Subject
Electrical and Electronic Engineering,Energy Engineering and Power Technology
Reference19 articles.
1. 1. Suchkov G.M., Migushchenko R.P., Kropachek O.Iu. Portable surface-mounted direct combined electromagnetic-acoustic transducer for ultrasonic testing through dielectric layers of up to 20 mm thickness in ferromagnetic products. Defektoskopiia. 2022. No 5. Pp. 13-23. (Rus)
2. 2. Petrov K.V., Muraveva O.V., Myshkin Y.V., Basharova A.F. Modeling Magnetic, Electric, and Acoustic Fields of a Pass-Through Transducer When Testing Cylindrical Objects. Russ J Nondestruct Test. 2019. No 55. Pp. 102-110. DOI: https://doi.org/10.1134/S1061830919020062. (Rus)
3. 3. Migushchenko R.P., Suchkov G.M., Petrishchev O.N. Information-measurement electromechanical transducers for quality assessment of ferromagnetic product surface via ultrasonic Rayleigh waves. Tekhnіchna elektrodynamіka. 2017. No 2. Pp. 70-76. DOI: https://doi.org/10.15407/techned2017.02.070.
4. 4. Migushchenko R.P., Suchkov G.M., Radev Kh.K., Petrishchev O.N., Desiatnichenko A.V. Electromagnetic-acoustic transducer for ultrasonic thickness-gauging of ferromagnetic products without removal of dielectric coating. Tekhnіchna elektrodynamіka. 2016. No 2. Pp. 78-82. DOI: https://doi.org/10.15407/techned2016.02.078. (Rus)
5. 5. Migushchenko R.P., Suchkov G.M., Petrishchev O.N., Desiatnichenko A.V. Theory and practice of electromagnetic-acoustic testing. Part 5. Peculiarities of design and practical application of EMA ultrasonic testing devices of metal products: monograph. Kharkiv: TOV Planeta-print, 2016. 230 p. (Rus)