Depth sounder

Details Depth sounder Depth sounder

1976-03-03

1977-10-04

Farley, Richard A.

Communications: electrical

Selective

Monitoring in addition to control

G01S 968

Patent

active

040526933

ABSTRACT:
A depth sounder in which the transducer beam is in the form of a section of hollow cone. With the hollow conical beam, the slant range to the bottom in all directions is the same and minimum depth determination over a path width of 2 to 4 times the depth of the water may be made.

REFERENCES:
patent: 3086195 (1963-04-01), Halliday
patent: 3616682 (1971-11-01), Golis et al.
patent: 3836948 (1974-09-01), Burckhardt et al.
patent: 3943482 (1976-03-01), Murphree et al.

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