The flat inductor impedance
DOI:
https://doi.org/10.20535/RADAP.2012.50.53-59Keywords:
Flat inductor model, total impedance, coil quality, skin-effect, discrete Hankel transformAbstract
The method proposed for calculation a coil in free space is presented. Eddy current transducer mathematical model as a spiral flat inductor in free space is designed as example. It allowed to calculate its impedance, considering skin effect in conductor and to estimate its quality. The model is obtained with assump-tions about current distribution in a conductor using the discrete Hankel transform that re-duces machine time significantly. Current distribution function is based on phenomena re-versibility in nature, namely, electromagnetic field creates definite current distribution in conductive medium and such current distribution in conductive medium creates the same electromagnetic field in free space. Flat inductor impedance and coil quality at 1 MHz and DC are calculated.References
Leonov G. V. Automation of the amplitude measurement process of ultrasonic oscil-latory systems irradiating surface. Biysk. / G. V. Leonov, V. N. Khmelev, I. I. Savin // 6th In-ternational siberian workshop and tutorial EDM’2005, session II, july 1 – 5, ERLAGOL, p.64-67.
Неразрушающий контроль и диагностика: Справочник / [ В. В. Клюев, Ф. Р. Соснин, А. В. Ковалев и др. ]; под ред. В. В. Клюева. 3-е изд., испр. и доп. – М.: Маши-ностроение, 2005. – 656 с. – ISBN 5-217-03300-2.
Юсеф Али Исследование и разработка микропроцессорного малогабаритного широкодиапазонного измерителя параметров комплексного сопротивления: дис. … кандидата техн. наук: спец. 05.11.05 / Юсеф Али. – К., 1994. – 187 с.
Немцов М.В. Справочник по расчету параметров катушек индуктивности. – 2-е изд., перераб. и доп. – М.: Энергоатомиздат, 1989. – 192 с. – ISBN 5-283-00534-8.
Калантаров П.Л., Цейтлин Л.А. Расчет индуктивностей: Справочная книга. – 3-е изд., перераб. и доп. Л.: Энергоатомиздат. Ленингр. отд-ние, 1986. – 488 с.: ил.
Zakrevskyi O. F. Eddy-current probe for conductive objects displacement in space measurement. Scientific proceedings. – 2011, – № 1(121), p. 28-31
Закревський О.Ф. Вплив скінченності габаритів об’єкту на внесений імпеданс вихрострумового сенсору. Матеріали конференції. 16 Міжнародна науково-технічна конференція «Електромагнітні та акустичні методи неруйнівного контролю матеріалів та виробів ЛЕОТЕСТ-2011», Львів – 2011, стр. 105-108.
Зернов Н.В. Теория радиотехнических цепей: Издание 2-е, переработ. и доп., / Зернов Н.В., Карпов В.Г. – Л., «Энергия», 1972. – 816 с.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).