Research on wireless power transmission for gastrointestinal microsystems based on inductive coupling / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 61-87, 2008.
Article
in Zh
| WPRIM
| ID: wpr-230655
Responsible library:
WPRO
ABSTRACT
A wireless power transmission method based on electromagnetic coupling was proposed for gastrointestinal microsystems. We analyzed the coupling coefficient, taking coils' misalignments into account by calculating mutual inductance. A power transmission model was built up. And based on this model, the electric parameters of maximizing the received power were deducted under weakly coupling condition. From the transmitting efficiency formula, we found two ways to enhance the efficiency. The transmission power was more than 200mW in our experiments when the receiving coil was located at the center of transmitting coil. This validated the method feasibility.
Full text:
1
Database:
WPRIM
Main subject:
Electric Power Supplies
/
Diagnosis
/
Electromagnetic Fields
/
Equipment Design
/
Capsule Endoscopy
/
Capsule Endoscopes
/
Gastrointestinal Diseases
/
Methods
/
Miniaturization
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
Zh
Journal:
Journal of Biomedical Engineering
Year:
2008
Document type:
Article