Communications – electrical: acoustic wave systems and devices – Transmitter systems – Animal control
Patent
1994-12-28
1996-05-14
Eldred, J. Woodrow
Communications, electrical: acoustic wave systems and devices
Transmitter systems
Animal control
367191, 367173, 367153, 119174, 43 1, 43 4, H04B 102
Patent
active
055174655
ABSTRACT:
Acoustic signals and hydraulic pressure variations which influence fish bvior in bodies of water are measured and recorded by apparatus simulating a fish immersed in water, fitted with piezoelectric transducers and connected by wiring to remote amplifying and recording means. Such data are correlated with fish behavior for the purpose of developing methods of diverting fish from such areas of danger as the intake piping of hydroelectric power generating turbines and pumping stations.
REFERENCES:
patent: 4380808 (1983-04-01), Hill et al.
patent: 4689777 (1987-08-01), Roever
Evans Jim
Haskins Richard W.
Nestler John M.
Pickens James L.
Eldred J. Woodrow
Marsh Luther A.
U.S. Army Corps of Engineers as represented by the Secretary of
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