8. Advances in Electromagnetic Transducers
I would like to describe some of our programs at NASA, Langley Research Center, Hampton, VA, on the development and use of a new type of phase insensitive transducer we call an Acoustoelectric Converter, or an AEC. In the very short time I have here, I shall indicate why the AEC is significant and show some ultrasonic transmission results obtained from modified isometric attentuation scans of conventional NDE resolution test plates containing simple flaws.
Heyman, J., "A Non-Phase Sensitive Transducer for Ultrasonics" (1977). Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE, July 1975–September 1976. 31.