Floating Base Vector Sensor
AssigneeThe Government of the United States of America, as represented by the Secretary of the Navy
InventorsMaxim K. Zalalutdinov, Douglas M. Photiadis, Joseph A. Bucaro, Brian H. Houston
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided for sensing acoustic signals using a floating base vector sensor. A vector sensor according to an embodiment of the present disclosure can be used to detect and characterize low frequency sound wave(s) in a viscous medium (e.g., air, water, etc.) by detecting a periodic motion of the media particles associated with the sound wave(s). The orientation of the particle velocity deduced from such measurements can provide information regarding the wave vector of the sound wave(s), can define the direction of arrival (DOA) for the acoustic signal, and can assist locating the source of the sound of interest.
Claims20
A vector sensor, comprising:
- a submerged base;
- a flow meter coupled to the base, wherein the flow meter is configured to detect a relative motion of the base with respect to a surrounding environment;
- a retaining thread coupled to the base;
- and
- an anchor coupled to the retaining thread.
A vector sensor, comprising:
- a base;
- a flow meter coupled to the base, wherein the flow meter is configured to detect a direction of arrival (DOA) of an acoustic signal;
- a retaining thread coupled to the base;
- and
- an anchor device, coupled to the retaining thread, configured to
- receive an incoming signal corresponding to the detected DOA of the acoustic signal, and
- transmit a signal corresponding to the detected DOA of the acoustic signal to an external device.
A flow meter, comprising:
- a two dimensional mesh, wherein the two-dimensional mesh has a micro or nano scale unit mesh size, and wherein the two dimensional mesh is configured to detect a flow passing through the two-dimensional mesh;
- and
- an optical link coupled to the two dimensional mesh, wherein the optical link is configured to generate a signal based on the detected flow based on a deformation of the two dimensional mesh initiated by the flow.
Dependencies are inferred from the claim text.