Ultrasonic data communication system

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An exemplar embodiment of the invention is described with reference to the drawing using reference designations as shown in the drawing.
An embedded sensory and actuating unit 10 is positioned in contact with an undulating coupling medium 11 which is preferably an ultrasonic coupling medium 11 separating an external transducer 12a and an internal transducer 12b opposing each other.
The embedded unit 10 preferably comprises an electrical isolation material such as cured rubber matrix materials for electrically isolating the electrical signals within the unit 10 from an environment in which the embedded unit 10 is disposed.
The internal transducer 12b generates an electrical response signal 13 when energized by input ultrasonic waves 14a communicated from the external transducer 12a through the coupling medium 11 to the internal transducer 12b.
The internal transducer 12b also generates output ultrasonic waves 14b also communicated through the ultrasonic coupling medium 11 to the external transducer 12a.
The transducers 12 are members of a group of transducers that transduce electrical signals to and or from undulating pressure waves 14.
The coupling medium 11 could be any medium that is capable of communicating undulating pressure waves 14 such as audio, acoustical, subsonic, sonic and ultrasonic undulating pressure waves tuned to an energizing frequency of the transducers 12.
The transducers 12 generate the undulating pressure waves 14 over any suitable frequency preferably from sub audio frequencies to radio frequencies but of a particular frequency suitable for efficient transmission of the energy of the undulating waves 14 through the medium 11.
The medium 11 could be any solid, such as metal, concrete, ceramic, epoxy, composite, any semi solid, such as rubber and gels, any fluid, such as water or fuels, or any gas, such as air and gas carriers, all of which media 11 can communicate the undulating pressure waves 14.
The selected transducers 12 and medium 11 are application specific, but generally low frequency undulating pressure waves 14 travel farther than high frequency waves 14