High-voltage spark discharge source as an ultrasonic generator
- 1 January 1984
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings A Physical Science, Measurement and Instrumentation, Management and Education, Reviews
- Vol. 131 (4) , 275-281
- https://doi.org/10.1049/ip-a-1.1984.0040
Abstract
A high-voltage spark-discharge source acting as an impulsive ultrasonic generator has been designed and tested. Ultrasound generated by this source has been detected and compared with ultrasound generated by a Q-switched Nd:YAG laser pulse focused to produce a plasma on the surface of the metal sample. The two sources have been shown to exhibit similar ultrasound generation characteristics. Additionally, a surface breaking crack has been detected using spark-source-generated acoustic waves, and surface damage caused by the spark source has been investigated.Keywords
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