REGISTRATION OF ACCUSTIC EMISSION NOISE BY THE SURFACE EDDY CURRENT PROBE IN A METAL ROD
Keywords:
surface eddy current probe, acoustic emission, normal waves, cylindrical rod, frequency range.Abstract
This article deals with the registration process of acoustic emission noise for the metal constructions of the type "rod". An alternative solution (surface eddy current transducer) instead of the contact registration method (piezoelectric transducer) is presented. The advantages of the surface eddy current transducer are shown. The physical basis of the work surface eddy current transducer for the acoustic emission noise registration is considered. In the process of mathematical modeling of the theorem about induced magnetic flow is used. This theorem is significant simplification of the mathematical model construction for the registration process of acoustic emission noise with the use of surface eddy current transducer. Analytical expressions describing the relationship of the geometrical sizes and operating frequency range for surface eddy current transducer is received. The importance of adequate sizes selection of eddy current probe is shown on the charts for a model example. As a result of this article can be used as recommendations developers in the design of surface eddy current transducer for the diagnosis of acoustic emission method constructs such as "rod".
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2. Назарчук З.Т., Скальский В.Р. Акустико – емісійне діагностування елементів конструкцій: Науково – технічний посібник: у 3 томах, – Т. 2. Методологія акустико – емісійного діагностування. – Київ: Наукова думка, 2009. – 263 с.
3. Скальский В.Р.,Рудаковский Д.В, Селивончик Т.В. Водородная деградація стали 12Х1МФ и ее оценка методом акустической ємиссии// Дефектоскопия. – 2009. – №9. – С.56 – 69.
4. Malgorzata Kalicka. Acoustic emission as a monitoring method in prestressed concrete bridges health condition evaluation // J. Acoustic Emission. – 2009. – 27. – P.18–26
5. Vahaviolos S.J., Miller R.K., Watts D.J., Shemyakin V.V., Strizkov S.A. Detection and location of cracks and leaks in buried pipelines using acoustic emission // J. Acoustic Emission. – 2001. – 19. – P.172–183
6. Fukutoshi Uchuda, Hideo Nishino, Mikio Takemoto, Kanji Ono. Cylinder wave analysis for AE source location and fracture dynamics of stress corrosion cracking of brass tube // J. Acoustic Emission. – 2001. – 19. – P.75–84
7. Miller, R.K., Pollock, A.A., Finkel, P.E., Watts, D.J., Carlyle, J.M., Tafuri, A.N., Yezzi, J.J. The development of acoustic emission for leak detection and location in liquid buried pipelines // Acoustic emission: Standards and technology update, ASTM STP 1353, ed. S.J. Vahaviolos, American society for testing and materials.– 1998. – Р.67–78.
8. Yoshie Hayashi, Yoshihiro Mizutani, Hideo Nishino, Mikio Takemoto,Kanji Ono. Damage detection in a fiber reinforced cylinder(fishing rod) by guided wave acoustic emission// J. Acoustic Emission. –2001. –19. –P.35–45.
9. Oliver Skavinski, Patrice Hulot, Cristophe Binetruy, Christian Rasche. Structural integrity evolution of CNG composite cylinders by acoustic emission monitoring// J. Acoustic Emission. –2008. –26. –P.120–131
10. Назарчук З.Т., Скальский В.Р. Акустико – емісійне діагностування елементів конструкцій: Науково – технічний посібник: у 3 томах, – Т. 1. Теоретичні основи методу акустичної емісії. – Київ: Наукова думка, 2009. – 287 с.
11. Клеманов В.И., Яременко М.А.Особенности крепления датчиков акустической эмиссии//Диагностика и прогнозирование разрушение сварных конструкций. – 1986. – Вып.3. – С.86– 89
12. Тамм И. Е. Основы теории электричества. – М.: Наука, 1976. – 616 с.
13. Власов К. Б. Некоторые вопросы теории упругих ферромагнитных (магнитострикционных) сред // Изв. АН СССР. Сер. физическая. – 1957. – Т. 21. – № 8. – С. 1140–1148.
14. Петрищев О.Н. Принципы построения математических моделей ультразвуковых преобразователей электромагнитного типа в режиме возбуждения упругих волн // Электроника и связь. – 2005. – №25. – С. 50 – 61.
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