# Acoustic Signal-Based Defect Identification for Directed Energy Deposition-Arc Using Wavelet Time–Frequency Diagrams

> Research article (Sensors, 2024) · cited 22× · AI/ML

**Wikidata**: [openalex:W4400418422](https://www.wikidata.org/wiki/openalex:W4400418422)  
**Source**: https://4ort.xyz/entity/acoustic-signal-based-defect-identification-for-directed-energy-deposition-arc-using-wavelet-timefrequency-diagrams