An Ultrasonic Transducer with a Biconical Pattern
- Thurlow W. H. Caffey
Underwater Vehicle Tracker
- J. T. Laing, M. L. Hiller, and R. C. Fischer
Ultrasonic Two-Dimensional Visualization Techniques
- G. Kossoff, D. E. Robinson, and W. J. Garrett
Ultrasonic Impedance Matching from Solids to Gases
- Lawrence C. Lynnworth
Signal-To-Noise Ratio for Arrays in an Uncorrelated Noise Field
- Visvaldis Mangulis
Fundamental Studies of Aging in Quartz Resonators
- A. W. Warner, D. B. Fraser, and C. D. Stockbridge
Variable Frequency Quartz Crystal Resonators
- J. Willis and V. W. Lym
Attenuation of Longitudinal and Flexural Wave Motions in Strips
- G. A. Coquin, T. R. Meeker, and A. H. Meitzler