Optical acoustic vector sensor
AssigneeRaytheon Company
InventorCaitlin C. Bogdan
Life of this patent
Estimating the term…
Abstract
Systems and methods for measuring acoustic wave vectors in a fluid is presented, a system comprising: a first camera configured to be placed in the fluid; a second camera configured to be placed in the fluid; a light source configured to be placed in the fluid; and a controller configured to: control the first camera; control the second camera; control the light source; process images provided by the first camera and second camera to determine an acoustic wave vector.
Claims20
A system for measuring acoustic wave vectors in a fluid, the system comprising:
- a first camera and a second camera, each configured to be placed in the fluid to record any movement of at least one particle suspended in the fluid in response to any disturbance of the fluid by an acoustic wave;
- a light source configured to be placed in the fluid;
- and
- a controller configured to:
- control the first camera;
- control the second camera;
- control the light source;
- process images provided by the first camera and second camera to determine an acoustic wave vector of the acoustic wave based on the measurement movement of the at least one particle.
An Acoustic Vector Sensor (AVS), comprising:
- a plurality of high-definition video cameras, each configured to be used in fluid to record over a small area any movement of at least one particle suspended in the fluid so as to record any object movement in response to any disturbance of the fluid by an acoustic wave within the small area between the video cameras;
- and
- a processing device configured to process images of the particles to determine an acoustic intensity vector of the acoustic wave based on the measured movement of the particle.
A method of determining an acoustic wave vector comprising:
- controlling a light source to illuminate a volume of a fluid;
- controlling a first camera to capture one or more first images of the volume;
- controlling a second camera to capture one or more second images of the volume, wherein the one or more first images and the one or more second images record any movement of at least one particle suspended in the fluid in response to any disturbance of the fluid by an acoustic wave;
- and
- process the one or more first images and the one or more second images to determine an acoustic wave vector of at least one particulate in the volume of the fluid.
A method of determining an acoustic wave vector comprising:
- controlling a plurality of video cameras to capture one or more images of particulates located within a volume of fluid;
- amplifying any motion of the particulates caused by an acoustic wave within the volume of the fluid;
- and
- determining an acoustic intensity vector of the acoustic wave based on amplified motion of the particulates and at least two of the one or more images.
Dependencies are inferred from the claim text.