20240019561. PASSIVE ACOUSTIC MAPPING USING COMPRESSIVE SENSING simplified abstract (OXSONICS LIMITED)
Contents
PASSIVE ACOUSTIC MAPPING USING COMPRESSIVE SENSING
Organization Name
Inventor(s)
Christian M. Coviello of Oxford Oxfordshire (GB)
Calum J. Crake of Oxford Oxfordshire (GB)
Richard J. Kozick of Danville PA (US)
PASSIVE ACOUSTIC MAPPING USING COMPRESSIVE SENSING - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240019561 titled 'PASSIVE ACOUSTIC MAPPING USING COMPRESSIVE SENSING
Simplified Explanation
The abstract describes a passive compression wave imaging system that is used to locate cavitation bubbles. The system includes a group of sensor elements arranged in an array, each producing an output signal. There are also processing means that perform various operations on the output signals.
- The system defines a sample period and a sample space over which the output signals can be sampled at multiple sample points.
- It also defines a grid of candidate bubble positions.
- A random projection is used to identify different groups of sample points for each output signal.
- The output signals are sampled at the sample points defined by the random projection to generate sample data.
- A dictionary is defined that specifies the sample values that would be obtained for each output signal at each sample point for a bubble at each candidate bubble position.
- A vector is defined to identify the candidate bubble positions.
- A minimization operation is performed to derive the values of the vector elements, and thus determine the bubble positions, from the sample data, basis, and random projection.
Potential applications of this technology:
- Locating and monitoring cavitation bubbles in various industries, such as medical imaging, underwater exploration, and industrial processes.
- Studying and understanding the behavior of cavitation bubbles in different environments.
Problems solved by this technology:
- Accurately locating cavitation bubbles without the need for active excitation or complex imaging techniques.
- Providing a passive and non-invasive method for detecting and tracking cavitation bubbles.
Benefits of this technology:
- Simplifies the process of locating cavitation bubbles by using a passive compression wave imaging system.
- Reduces the complexity and cost associated with active excitation methods.
- Enables real-time monitoring and tracking of cavitation bubbles in various applications.
Original Abstract Submitted
a passive compression wave imaging system for locating cavitation bubbles, the system comprising a plurality of sensor elements () arranged in an array and each arranged to produce an output signal, and processing means () arranged to: define a sample period, and a sample space over which the signal can be sampled at each of a plurality of sample points in the sample space; define a grid of candidate bubble positions; define a random projection identifying a respective different group of the sample points for each of the output signals; sample each of the output signals at the group of sample points defined by the random projection to generate sample data; define a dictionary which defines the sample values that would be obtained for the signal of each of the respective group of sensor elements at each of the sample points for the sample period for a bubble at each of the candidate bubble positions; define a vector the elements of which identify the candidate bubble positions; and perform a minimisation operation to derive the vector element values, and hence the bubble positions, from the sample data, the basis and the random projection.
