A wireless power supply system for robotic capsular endoscopes

In expanding capsular endoscopy from a mere passive screening tool to a multipurpose robot, batteries become inadequate. Wireless power supply overcomes the problem of power shortage and enables the integration of high-power modules. This work focuses on wireless inductive power transfer and its tec...

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Veröffentlicht in:Sensors and actuators. A. Physical. 2010-08, Vol.162 (2), p.177-183
Hauptverfasser: Carta, R., Thoné, J., Puers, R.
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container_title Sensors and actuators. A. Physical.
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creator Carta, R.
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Puers, R.
description In expanding capsular endoscopy from a mere passive screening tool to a multipurpose robot, batteries become inadequate. Wireless power supply overcomes the problem of power shortage and enables the integration of high-power modules. This work focuses on wireless inductive power transfer and its technology optimization in size, materials and efficiency. A user friendly and stable external unit has been developed that supports power and data transmission through the downlink (from the external world to the capsule). The possibility of using a Helmholtz coil at the primary side has been investigated and a preliminary set-up has been implemented. The ongoing development on 3D coil geometries is further refined by the introduction of a laser machined ferrite core to boost the amount of available power. It is demonstrated that 330 mW can be transferred to a capsule under all possible orientations, within a 0.48 cm 3 volume.
doi_str_mv 10.1016/j.sna.2009.12.025
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source Elsevier ScienceDirect Journals
subjects 3D inductive coupling
Capsular endoscopy
Coiling
Data transmission
Endoscopes
Ferrite
Power supplies
Robots
Three dimensional
Wireless power supply
title A wireless power supply system for robotic capsular endoscopes
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