Abstract
The interaction effect between the spatial resolution and detection accuracy of the ultrasonic detection method isrestricted under low stress conditions. To solve this problem, an ultrasonic stress detection scheme based on electromagnetic loading is proposed in this study.Through the electromagnetic loading of the metal plate, the electromagnetic force is superimposed with the internal stress of the plate, which indirectly enhances the acoustic elastic effect and shortens the ultrasonic detection distance on the premise of guaranteeing the accuracy of the stress measurement.In this way, the spatial resolution of the stress detection can be improved.Theelectromagnetic loading device for sheet metal and thematching pulse exciting power supply are designed. Finite element simulation is carried out to analyze the loading effect of the device on aluminum plate.
| Translated title of the contribution | Ultrasonic detection of aluminumstress based on electromagnetic loading |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 169-177 |
| Number of pages | 9 |
| Journal | Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument |
| Volume | 39 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1 Aug 2018 |
| Externally published | Yes |
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