Nondestructive Testing of Ferromagnetic Tubes using a Bobbin-type Integrated Hall Sensor Array

被引：0

作者：

Park, Juhyeon ^{[1
]}

Lee, Hoyong ^{[2
]}

Wang, Dabin ^{[1
]}

Hwang, Youngha ^{[3
]}

Do, HwaSik ^{[4
]}

Lee, Jinyi ^{[5
]}

机构：

[1] Chosun Univ, Deft Control & Instrument Engn, Gwangju, South Korea

[2] Gwangju Univ, Dept Def Sci & Technol, Gwangju, South Korea

[3] Korea Inst Ind Technol, Avion Syst Technol Ctr, Cheonan Si, South Korea

[4] Kepco Plant Serv & Engn, Nucl Power Maintenance Engn Ctr, Seongnam, South Korea

[5] Chosun Univ, Dept Eletron Enginnering, Gwangju, South Korea

来源：

JOURNAL OF THE KOREAN SOCIETY FOR NONDESTRUCTIVE TESTING | 2019年 / 39卷 / 04期

关键词：

Ferromagnetic Material; Heat Exchanger; Tube; Eddy Current Testing; Hall Sensor Array; CRACKS; INSPECTION;

D O I：

10.7779/JKSNT.2019.39.4.209

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A probe that can examine a ferromagnetic heat-exchanger finned tube with a curved part is proposed in this paper. The distortion in the electromagnetic field due to the existence of flaws and tube support plate (TSP) was measured using an active-type excitation coil, a bobbin-type Hall sensor array, and a passive-type pick-up coil. The active-type excitation coil could recognize the existence and location of flaws. The Hall sensor array could recognize the existence, location, and distribution of flaws. The passive-type pick-up coil could recognize the position of TSP, which was used as a landmark. The effectiveness and TSP-recognition ability of the proposed probe were verified using a finned-tube specimen made of STS 439 with various types of artificial defects.

引用

页码：209 / 216

页数：8

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