Patents Assigned to BTECH ACOUSTICS LLC
  • Acoustic transducers for underwater navigation and communication
    Publication number: 20120236689
    Abstract: Methods and transducers for producing acoustical signals having a spiral wavefront with omnidirectional magnitude and a phase that varies with angle and transducers for producing broadband omnidirectional reference signals for underwater navigation and communication.
    Type: Application
    Filed: September 19, 2011
    Publication date: September 20, 2012
    Applicant: BTECH ACOUSTICS LLC
    Inventors: David Alan Brown, Boris Aronov, Corey L. Bachand
  • Broadband Underwater Acoustic Transducer
    Publication number: 20110110197
    Abstract: An efficient, broadband, underwater acoustic transducer having nominally a quasi-omnidirectional radiation pattern is realized with a plurality of thin walled radially vibrating spherical piezoelectric transduction elements aligned axially. Each spherical transduction element is progressively smaller in diameter so as to enhance the combined frequency coverage and achieve the desirable radiation pattern. The transduction elements may be excited individually, or together electrically in series or in parallel combinations.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 12, 2011
    Applicant: BTech Acoustics LLC, David A. Brown
    Inventor: David A. Brown