Non-destructive evaluation of ferromagnetic material thickness using Pulsed Eddy Current sensor detector coil voltage decay rate

被引：53

作者：

Ulapane, Nalika ^{[1
]}

Alempijevic, Alen ^{[1
]}

Miro, Jaime Valls ^{[1
]}

Vidal-Calleja, Teresa ^{[1
]}

机构：

[1] Univ Technol Sydney, Ctr Autonomous Syst, 15 Broadway, Ultimo, NSW 2007, Australia

来源：

NDT & E INTERNATIONAL | 2018年 / 100卷

关键词：

Detector coil; Ferromagnetic; Finite element analysis; NDE; NDT; Pulsed eddy current; Pipe; Sensor; CONDUCTIVITY;

D O I：

10.1016/j.ndteint.2018.08.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A ferromagnetic material thickness quantification method based on the decay rate of the Pulsed Eddy Current sensor detector coil voltage is proposed. An expression for the decay rate is derived and the relationship between the decay rate and material thickness is established. Pipe wall thickness estimation is done with a developed circular sensor incorporating the proposed method, and results are evaluated through destructive testing. The decay rate feature has a unique attribute of being lowly dependent on properties such as sensor shape and size, and lift-off, enabling the method to be usable with any detector coil-based sensor. A case study on using the proposed method with a commercial sensor is also presented to demonstrate its versatility.

引用

页码：108 / 114

页数：7