Cost effective open source imaging (COSI) is a collaborative initiative currently building an affordable low field open source magnetic resonance imaging (MRI) scanner. Along this path, affordable and customizable open source tools are required.
COSI Measure is an open source multipurpose 3-axis robot operating in a large volume, that can be equipped with e.g. field mapping probes for static or dynamic field measurements (electromagnetic, temperature etc.). Submillimeter fidelity and reproducibility/backlash performance were evaluated experimentally. It can be potentially upgraded to be used as a CNC, for 3D printing or other applications, that require reproducible submillimeter movements.
- Dimension: (80x90x105)cm³
- Working volume: (53x53x64)cm³
- Precision: positioning error <1mm
- Speed: 37mm/s
- Max load: 21kg
- Applied force: 896N (91kg)
- Standalone system: Beagle Bone Black, ARM Contex-A8 1GHz, 512MB DDR3, Programmable real-time unit subsystem
- Inductive limit switches
- Emergency stop
- Open Source Software GUI (python)
- Estimated material costs: ~2000€
More photos and videos can be found on opensourceimaging.org: https://www.opensourceimaging.org/project/cosi-measure/
General contact:
| Name | Institution | COSI Measure Applications | |
|---|---|---|---|
| Lukas Winter | lukas.winter@ptb.de | Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany | Magnetic field mapping of MR magnets, implant safety measurements, RF field mapping of RF coils using time-domain H- and E-field sensors, Measurements within an MR scanner, 3D printing |
(Known) builds
| Name | Institution | COSI Measure Applications | |
|---|---|---|---|
| Haopeng Han | haopeng.han@mdc-berlin.de | Max-Delbrück Center for Molecular Medicine, Berlin, Germany | Temperature and RF field mapping of RF coils |
| Tom O'Reilly | t.o_reilly@lumc.nl | Leiden University Medical Center (LUMC), Leiden, Netherlands | Magnetic field mapping of low field MR magnets |
| Benjamin Menküc | benjamin.menkuec@fh-dortmund.de | University of Applied Sciences, Dortmund, Germany | Magnetic field mapping of low field MR magnets |
| Mark Bason | M.Bason@sussex.ac.uk | Quantum Systems and Devices, University of Sussex, Falmer, England | Magnetic field measurements |
| Wolfgang Kilian | Wolfgang.Kilian@ptb.de | Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany | 3D printing of phantoms |
Nils Allek Mark Bason Haopeng Han Amjad Kasabashy Wolfgang Kilian Benjamin Menküc Tom O'Reilly David Shiers Berk Silemek Karl Stupic Lukas Winter
If you find COSI Measure useful in your work, please cite this paper:
H. Han, R. Moritz, E. Oberacker, H. Waiczies, T. Niendorf and L. Winter, "Open Source 3D Multipurpose Measurement System with Submillimetre Fidelity and First Application in Magnetic Resonance", Scientific Reports, 7:13452, 2017