ПІДВИЩЕННЯ ЕФЕКТИВНОСТІ НАКЛАДНОГО УЛЬТРАЗВУКОВОГО ЕЛЕКТРОМАГНІТНО-АКУСТИЧНОГО ПЕРЕТВОРЮВАЧА ЗА РАХУНОК ДЖЕРЕЛА МАГНІТНОГО ПОЛЯ

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 transducer...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Datum:2023
Hauptverfasser: Сучков, Г.М., Болюх, В.Ф., Кочерга, А.І., Мигущенко, Р.П., Кропачек, О.Ю.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут електродинаміки НАН України, Київ 2023
Schlagworte:
Online Zugang:https://techned.org.ua/index.php/techned/article/view/1481
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Назва журналу:Technical Electrodynamics

Institution

Technical Electrodynamics
Beschreibung
Zusammenfassung: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.