Application
Positioning system for 3D measurements
Contributors
Nils Allek1, Mark Bason2, Haopeng Han3, Wolfgang Kilian4, Amjad Kasabashy4, Jan Gregor Frintz4, Ilia Kulikov5, Benjamin Menküc1, Tobias Mohr4, Reiner Montag1, Tom O’Reilly, David Shiers2, Berk Silemek4, Karl Stupic6, Lukas Winter4
Contact
Lukas.Winter@ptb.de
Estimated cost
€ 2.000
License
CERN OHL W v2
Cost effective open source imaging (COSI) is a collaborative initiative currently building an affordable low field open source MR scanner. COSI Measure is an open source multipurpose 3-axis robot, that can be equipped with 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. The system can be easily scaled to smaller volumes and lighter/cheaper materials (CAD files available).
System specifications:
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 button
Software: GUI (python)
Mapping the magnetic field of a Halbach magnet:
Mapping the stray magnetic field of a 3T MRI:
More videos can be found here (in the Electronic supplementary material).
Publications
Affiliations
1Univeristy of Applied Sciences and Arts, Dortmund, Germany
2University of Sussex, UK
3Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine, Berlin, Germany
4Physikalisch Technische Bundesanstalt (PTB), Berlin, Germany
5New York University, USA
6National Institute of Standards and Technology (NIST), Boulder, USA