Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1987-08-10
1994-11-08
Eldred, J. Woodrow
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367165, 310337, H04R 1700
Patent
active
053633440
ABSTRACT:
An acoustic sensor is disclosed that exhibits a wide linear bandwidth, provides a high signal-to-noise ratio, and that is rugged and relatively inexpensive. The sensor includes a piezoelectric polymeric tape transducer adhered to a portion of the inner surface of an acoustically transmissive shell. The transducer is coupled to a preamplifier within the shell that amplifies the transducer signal for transmission by a cable to a receiver. The preamplifier, transducer, and one end of the cable are encapsulated within the shell to support and protect the assembly.
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