The purpose of this research is to develop nondestructive equipment using magnetic flux leakage(MFL) principle and to confirm the accuracy of the equipment. The equipment consist of a magnetization part, a sensor part, and a data storage part. The parameters of specimens for equipment verification are the length and the area of flaws. It was confirmed that the equipment accurately probed the locations of the flaws in the specimens, and grout had little effect on the results of the test.

1. 서 론
 2. MFL 방식 비파괴 검사장비 제작 및 실험
 3. 결 론

• 손윤기(㈜엔비코컨설턴트) | Son Yun-Ki 교신저자
• 이창선(㈜엔비코컨설턴트) | Lee Chang-Sun
• 남왕현(㈜엔비코컨설턴트) | Nam Wang-Hyun
• 손상원(㈜엔비코컨설턴트) | Song Sang-Won
• 김형언(중앙대학교 건설환경플랜트공학과) | Kim Hyeong-Eon