Free-Flooded Ring Transducer with Slow Wave Guide.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent describes a free-flooded ring type transducer in combination with a coaxial slow waveguide. It is used for transmitting or receiving signals which improves the performance by delaying the radiation from the inner surface by one-half wavelength so that the radiation from the inner and outer surfaces are in phase.
- Acoustic Detection and Detectors