Communications – electrical: acoustic wave systems and devices – Echo systems – Speed determination
Patent
1992-02-13
1993-08-10
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Echo systems
Speed determination
367908, G01S 1560
Patent
active
052355578
ABSTRACT:
A combined speed and depth transducer adapted to be mounted flush in the hull of a ship. An acoustic depth transducer is mounted piggyback on top of an acoustic speed transducer within a single housing. A base plate is sandwiched between the depth transducer and the speed transducer. The dimensions and frequency of transmission of the transducers are selected to prevent ringing in one transducer that may be caused by the acoustic wave of the other transducer. The base plate 40 is constructed to damp the acoustic wave transmitted by the speed transducer and be transparent to the acoustic wave transmitted by the depth transducer. Having the depth and speed transducers mounted within a common housing, and flush with the hull of the ship, provides the advantage of having to make only a single hole in the hull as well as having a low drag.
REFERENCES:
patent: 3818425 (1974-06-01), Peynaud et al.
patent: 4017823 (1977-04-01), Cooke et al.
patent: 4104912 (1978-08-01), Clavelloux et al.
patent: 4166229 (1979-08-01), DeReggi et al.
patent: 4264788 (1981-04-01), Keidel et al.
patent: 4604542 (1986-08-01), Thompson
patent: 4633119 (1986-12-01), Thompson
patent: 4685093 (1987-08-01), Gill
patent: 4837750 (1989-06-01), Saunders
patent: 4905207 (1990-02-01), Fellinger et al.
patent: 4918672 (1990-04-01), Iwabuchi et al.
LandOfFree
Combined speed and depth sensor transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combined speed and depth sensor transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined speed and depth sensor transducer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1731226