The proceedings of the Institution of Electrical Engineers. Part B, Radio and electronic engineering, including communication engineering · 1956 · 28 citations · 1 references
EngineeringElectrical EngineeringPhysicsAcoustic DesignAcousticsPropagationAcoustic Wave PropagationDelay ModelingPropagation DelayTransmission LinesWaveguidesDelay ToleranceSignal Propagation DelayTorsional CouplingTransmission Delay
The paper describes the design of acoustic delay lines using wire as the transmission medium. Delays of 3 millisec or more are possible with resolution adequate to permit a pulse repetition rate of 500 kc/s.The acoustic signal is propagated in the torsional mode in wire of a material chosen for its low loss and negligible delay/temperature coefficient. The torsional mode is used, since thereby a longer delay can be made without intolerable distortion.
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