조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제12권3호
  • /
  • Pages.89-98
  • /
  • 1998
  • /
  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
권호 표지

원통형 2-도체를 가진 솔레노이드 와전류 코일의 임피던스 해석

Impedance Analysis of a Solenoid Eddy Current Coil with Cylindrical Two-conductor Rods

  • 김성덕 (대전산업대학교 전자공학과) ;
  • 이상래 (대전산업대학교 전자공학과)
  • 발행 : 1998.08.01
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 도체를 비파괴적으로 검사하기 위한 솔레노이드 와전류 코일의 몇가지 해석적인 결과가 다루어진다. 원통형 도체관이나 2-도체를 가진 솔레노이드 코일의 규격화 임피던스가 해석된다. 도체의 도전율, 투자율과 전원주파수와 같은 전기.자기적 성질과 충전율이나 반경비의 기하학적 성질 역시 규명되었다. 수치해석에 의해 구한 모델의 임피던스 특성들이 검토되고, 비자성 도체관과 2-도체의 몇가지 시료들올 사용하여 모델의 타당성이 검증되었다.

Some analytic results for a solenoid eddy current coil to test nondestructive conducting materials are described in this paper. Normalized impedance of solenoid coil encircling cylindrical conducting tubes or tow-conductor rods is analyzed. Electrical and magnetic properties such as conductivity, permeability and exciting frequency as well as the geometric ones of fill factor or radius ratio of the conductor are also considered. Impedance characteristics of the models obtained by numerical analysis are examined. Validation of the model is carried out using several samples of non-ferromagnetic conducting tubes and 2-conductor rods.

키워드

참고문헌

  1. ASTM Special Technial Publication Eddy Current Charaterization of Materials and Stuctures
  2. Nondestructive Testing Handbook(2nd ed.) v.4 Electromagnetic Testing
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