A neutrally buoyant underwater vehicle is provided in which a length of the vehicle is up to one tenth the length of a predetermined acoustic wavelength. The vehicle includes an inertial navigation system with an accelerometer capable of measuring velocity in a multi-axis direction. The navigation system is operationally connected to a hydrophone which measures acoustic energy of the wavelength arriving at the underwater vehicle. A processor gathers the data from the accelerometer and the hydrophone to convert the data into usable units. The operation of the vehicle-based components is similar to a vector sensor for frequencies of 250 Hz or lower.


    Access

    Download


    Export, share and cite



    Title :

    Vehicle based vector sensor


    Contributors:

    Publication date :

    2017-06-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen






    Vector sensor-based acoustic monitoring system

    RAGHUKUMAR KAUSTUBHA / SPADA GRACE CHANG / SPADA FRANK et al. | European Patent Office | 2021

    Free access

    Vector Sensor-Based Acoustic Monitoring System

    RAGHUKUMAR KAUSTUBHA / SPADA GRACE CHANG / SPADA FRANK et al. | European Patent Office | 2021

    Free access