TY - GEN
T1 - Propulsive force of a magnetic, MRI - Based swimmer
AU - Friedman, Avi
AU - Liberzon, Alex
AU - Kosa, Gabor
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/29
Y1 - 2015/6/29
N2 - Capsule endoscopy is becoming an important tool for diagnosis in the digestive system. In certain parts of the gastrointestinal tract, such as the stomach, the capsule should be self-propelled. This study examines the swimming mechanism for a miniature gastric pill endoscope. Our method is based on a constant external magnetic field, such as the B0 field of an MRI (Magnetic Resonance Imaging), that drives a pair of coils in order to create an undulating swimming motion. We present a dynamic model of the two coil swimmer and compare it to the results obtained using PIV (Particle Image Velocimetry). We demonstrate that our swimmer is able to create an average propulsive force of 0.03 mN and 0.07 mN for the flow regimes tested, which is in a reasonable agreement with the results of the proposed dynamic model.
AB - Capsule endoscopy is becoming an important tool for diagnosis in the digestive system. In certain parts of the gastrointestinal tract, such as the stomach, the capsule should be self-propelled. This study examines the swimming mechanism for a miniature gastric pill endoscope. Our method is based on a constant external magnetic field, such as the B0 field of an MRI (Magnetic Resonance Imaging), that drives a pair of coils in order to create an undulating swimming motion. We present a dynamic model of the two coil swimmer and compare it to the results obtained using PIV (Particle Image Velocimetry). We demonstrate that our swimmer is able to create an average propulsive force of 0.03 mN and 0.07 mN for the flow regimes tested, which is in a reasonable agreement with the results of the proposed dynamic model.
UR - http://www.scopus.com/inward/record.url?scp=84938261761&partnerID=8YFLogxK
U2 - 10.1109/ICRA.2015.7139857
DO - 10.1109/ICRA.2015.7139857
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AN - SCOPUS:84938261761
T3 - Proceedings - IEEE International Conference on Robotics and Automation
SP - 4736
EP - 4741
BT - 2015 IEEE International Conference on Robotics and Automation, ICRA 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Conference on Robotics and Automation, ICRA 2015
Y2 - 26 May 2015 through 30 May 2015
ER -