Economic and Environmental Geology (자원환경지질)

The Korean Society of Economic and Environmental Geology (대한자원환경지질학회)
권호 표지

Electromagnetic Responses for a Vertical Coaxial Loop System over a Layered Earth

층상대지에서 수직공측루프에 대한 전자응답

  • Kim, Hee Joon (Department of Applied Geology, National Fisheries University of Pusan)
  • Published : 1986.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

A modified expression of mutual coupling ratio for a vertical coaxial loop system over a layered earth is derived by transforming the Bessel function of order 0 to that of order 1. This expression allows us to use a single $J_1$ filter instead of a combination of $J_0$ and $J_1$ filters, and produces a significant reduction of computer time and core storage. In this paper, the mutual coupling ratio for a three-layered earth is obtained by means of Anderson's adaptive filter (Anderson, 1979).

총상대지에서 수직공측루프에 대한 상호결합비의 새로운 관계식을 방정식 중의 0차 뱃셀함수를 1차로 변환함으로써 유도하였다. 이 관계식을 쓰면 $J_0$와 $J_1$ 두개의 필터대신 $J_1$필터만이 필요하게 되며, 계산시간이나 기억용량이 크게 절감된다. 본 논문에서는 3층구조 대지에 대한 상호결합비를 앤더슨의 필터로 구하였다.

Keywords