Communications: electrical – Selective – Having indication or alarm
Patent
1977-01-31
1978-12-26
Farley, Richard A.
Communications: electrical
Selective
Having indication or alarm
G01S 380
Patent
active
041318730
ABSTRACT:
A slant range and direction detector that is particularly useful for tracking underwater target vehicles. The device is capable of very quickly measuring the slant range and indicating the relative bearing from the sound signal emitted by the pinger mounted on a target vehicle. The device is completely portable and can be readily operated by one person. It can be operated over a wide range of acoustic frequencies, for example, 1 Hz to 100 meg Hz. However, it is preferably operated in the 1 KHz to 100 KHz spectrum. The detector uses a plurality of gates, clocks, timers, counters and the like to indicate relative bearing by a three light display system and distance by a counter display. The portable hydrophone sensors are spaced apart a fixed distance and may be operated in either the broadside or endfire modes.
REFERENCES:
patent: 2721315 (1955-10-01), Snyder
patent: 3205475 (1965-09-01), Foss
patent: 3296581 (1967-01-01), Warner
patent: 3475721 (1969-10-01), Cappel, Jr. et al.
patent: 3731273 (1973-05-01), Hunt
Saltzer, Proceedings of the Ion National Marine Navigation Symposium on Med Deep Submergence Vehicles, Nov. 1969, pp. 219-229.
Hulford, Ultrasonics, Jan. 1969, pp. 47-50.
Curry Charles D. B.
Farley Richard A.
Sciascia R. S.
The United States of America as represented by the Secretary of
LandOfFree
Slant range and direction detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Slant range and direction detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slant range and direction detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1131063