| Issue |
MATEC Web Conf.
Volume 106, 2017
International Science Conference SPbWOSCE-2016 “SMART City”
|
|
|---|---|---|
| Article Number | 03007 | |
| Number of page(s) | 7 | |
| Section | 3 Building Materials and Products | |
| DOI | https://doi.org/10.1051/matecconf/201710603007 | |
| Published online | 23 May 2017 | |
Non-destructive testing of Al-Mg alloys by using the eddy-current method
1 Altay State University, Lenin Street, 61, Barnaul, 656049, Russia
2 Altay State Agrarian University, 98, Krasnoarmeyskiyave., Barnaul, 656049, Russia
* Corresponding author: osys@me.com
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. A scheme that uses a computer as a generator and receiver of signals from windings is proposed. It is capable of automatically changing the filtering cutoff frequency and operating frequency of the device. 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 holes at signal frequencies comprised between 300÷700 Hz on an exciting winding.
© The Authors, published by EDP Sciences, 2017
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