Research of Conductive Materials by Multifrequency Measuring System on the Basis of Eddy Current Transducers

5th International Conference: Modern Technologies For Non-Destructive Testing

材料科学;物理学

Dmitriev, S.^1 ; Ishkov, A.^2 ; Katasonov, A.^1 ; Malikov, V.^1 ; Sagalakov, A.^2 ; Shevtsova, L.^3 ; Ekkerdt, K.^1

Altay State University, Barnaul, Russia^1

Altay State Agrarian University, Barnaul, Russia^2

Novosibirsk State Technical University, Novosibirsk, Russia^3

关键词: Aluminum;    Magnesium alloys;    Eddy current transducers;    Measuring systems;    Multi frequency;    Signal frequencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/189/1/012001/pdf
DOI  :  10.1088/1757-899X/189/1/012001

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The measuring system based on subminiature eddy-current transducers has been developed to carry out local investigations of aluminum-magnesium alloy plates for flaws. The Delianna filter has been modified to allow the significant increase of signal-to-noise ratio. The transducer has been tested on a number of aluminum-magnesium alloy plates with flaws. The article presents data on the relationship of eddy-current transducer response to the presence of flaws in alloys as hidden slots at signal frequencies comprised between 300 ÷ 700 Hz on an exciting winding.