Related Experiment Video
Updated: Dec 21, 2025
05:04
Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays
Published on: June 13, 2023
2.2K
Ultrasound Detection Arrays via Coded Hadamard Apertures
Summary
This study presents a new way to turn a single ultrasound detector into an array using a coded acoustic mask. This method allows for efficient mapping of acoustic fields, enhancing ultrasound imaging capabilities.
Area of Science:
- Medical Imaging
- Acoustics
- Signal Processing
Background:
- Piezoelectric arrays are standard for medical ultrasound mapping.
- Simultaneous acoustic field mapping at multiple positions is crucial in medical diagnostics.
Purpose of the Study:
- To develop a novel method for converting a single-element ultrasound detector into an effective detection array.
- To enable efficient acoustic field mapping using spatial filtering with a coded mask.
Main Methods:
- A binary acoustic mask coded with cyclic Hadamard patterns was used for spatial filtering.
- The mask was scanned in front of a single-element ultrasound detector.
- A multiplexed measurement data set was obtained and analytically processed to construct the acoustic field map.
Main Results:
- Successfully transformed a single-element ultrasound detector into a 1-D array.
- Achieved up to 59 effective array elements through mask scanning and data reconstruction.
- Demonstrated the analytical construction of acoustic field maps from multiplexed data.
Conclusions:
- The proposed method offers a cost-effective alternative to traditional piezoelectric arrays.
- This technique enhances the capabilities of single-element ultrasound detectors for acoustic field mapping.
- The Hadamard-coded mask approach provides a viable pathway for advanced ultrasound detection systems.
