echOpen is an open and collaborative project and community, led by a multidisciplinary core of experts and senior professionals with the aim of designing a functional low-cost (affordable) and open source echo-stethoscope (ultrasound probe) connected to a smartphone, allowing the radical transformation of diagnostic orientation in hospitals.
To design our ultrasound probes and achieve the necessary medical image quality, we need a test bench to try our transducers.
The transducers are tested in an aquarium filled with water. We must measure the echoes returned by a metal rod moved over an area of 25cm x 25cm in front of the transducer.
The project :
The project consists of the implementation of the complete measurement chain from the two-axis table to the results displayed on the PC.
During the implementation of the project, the following points should be addressed.
- Assembly and testing of a 2-axis plotter kit (mechanical).
- Study of an adjustable device for precise fixing of the table on the aquarium (mechanical, CAD, 3D printing).
- Reduce the area of motion to avoid collisions with the edges of the aquarium (mechanical, CAD, 3D printing, firmware).
- Replacing the pen holder with a target holder (metal rod) (mechanical, CAD, 3D printing).
- Optionally use the pen control servo to move the target on the Z axis (mechanical, CAD, 3D printing, arduino firmware).
- Analyze the various softwares provided in the Kit (Arduino side and PC side) (hacking).
- Modify the Arduino firmware to make it capable of triggering a measurement (firmware).
- Modify the PC software to execute a measurement sequence and read the measured results (software).
- Implement a graphical display of results (software)
- To facilitate the tests and the validation of the project you can use an ultrasonic rangefinder as sensor to be characterized (robotics).
Good documentation will be required to reproduce an identical test bench in the echOpen 's laboratory.
And ... don't forget to have fun tweaking it all !!!