Conference proceeding
Wireless Power Harvesting During MRI
2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), Vol.2020-, pp.1469-1472
07/2020
DOI: 10.1109/EMBC44109.2020.9175648
Abstract
We present methods to harvest wireless power directly from the MRI RF field. The system includes a harvester coil to capture RF energy and an RF-DC converter for rectification. Energy harvesting by the harvester coil is modeled as a function of the MRI B 1 RF field. Rectification is modeled using power-dependent large signal S-parameter simulation. A novel reference impedance-based modeling approach is leveraged to cascade models for linear inductive coupling and nonlinear diode rectification, and validated. The method permits independent optimization of harvester coils and RF-DC converters to maximize harvesting efficiency. Feasibility of this technique is demonstrated by implementing concurrent in-bore wireless power harvesting and MRI scanning on a clinical system. The effect of artifacts on image quality is also investigated.Clinical Relevance- In-bore wireless harvesting can provide power for medical accessories during MRI, with minimal system modification and cost
Details
- Title: Subtitle
- Wireless Power Harvesting During MRI
- Creators
- Madhav Venkateswaran - Micro Systems EngineeringKrishna Kurpad - Micro Systems EngineeringJames E Brown - Micro Systems EngineeringSean Fain - Micro Systems EngineeringDaniel van der Weide - Micro Systems Engineering
- Resource Type
- Conference proceeding
- Publication Details
- 2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), Vol.2020-, pp.1469-1472
- Publisher
- IEEE
- DOI
- 10.1109/EMBC44109.2020.9175648
- ISSN
- 1557-170X
- eISSN
- 1558-4615
- Language
- English
- Date published
- 07/2020
- Academic Unit
- Health and Human Physiology; Electrical and Computer Engineering; Roy J. Carver Department of Biomedical Engineering; Radiology
- Record Identifier
- 9984274959202771
Metrics
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