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http://dx.doi.org/10.5391/JKIIS.2008.18.6.856

Design of Self Magnetization MsS Sensor Using Crossed Coils  

Kim, Yi-Gon (전남대학교 전기 및 반도체 공학과)
Park, Kyung-Jo (전남대학교 자동차 시스템 공학과)
Moon, Hong-Sik (전남대학교 전기 및 반도체 공학과)
Kim, Jae-Hyun (전남대학교 전기공학과)
Ahn, Hyun-Jin (전남대학교 전기공학과)
Kang, Woo-Seok (전남대학교 자동차 시스템 공학과)
Oh, Un-Kyung (전남대학교 자동차 시스템 공학과)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.18, no.6, 2008 , pp. 856-862 More about this Journal
Abstract
This paper propose a advanced technique for exciting and receiving the guided torsional wave to detect flaws in pipe systems. There are some difficulties in selecting and exciting of modes by using the nickel strip attached on pipe systems, such as qualification of residual magnetic field and multi-exciting of the unwanted modes etc. In order to there difficulties we propose the new sensor, so called Crossed-coils sensor. We will prove that it is possible to select the modes to be excited and to find a optimal excitation condition for torsional mode by using the proposed sensor.
Keywords
Magnetostriction; Torsional Mode; Crossed coils; Guided wave; Pipe;
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