Improving resolution of robotic capsule locomotion using dynamic electromagnetic field.
This engineering conference paper describes a method for controlling the locomotion of swallowable wireless capsule endoscopy devices using a dynamic magnetic field generated by external coils. A permanent magnet embedded in the capsule is manipulated by adjusting external field strengths to maintain equilibrium for holding position and to initiate movement via timed OFF-pulses. The method is presented as enabling precise control of step size and velocity with low system complexity.
Key points
- A set of external magnetic coils generates a dynamic magnetic field to control capsule motion.
- A permanent magnet embedded in the capsule enables manipulation by changing external field strength by position.
- The method aims to hold the capsule in place by maintaining an equilibrium state with net magnetic force set to zero.
- Movement is initiated by reducing one external field source for a set time using an OFF-pulse.
- An algorithm controls required forces and pulses to set movement step size and achieve chosen velocity.
- The approach is designed to provide precise motion control with low system complexity.
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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