João Sepúlveda

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Current research highlights the emergent need for the development of wearable, calibrated, and accurate sensory systems for ambulatory human gait analysis. The purpose of this work is to develop a lightweight and calibrated instrumented insole system for the real-time monitoring of gait events in healthy, pathological and robotic-assisted gait. We designed(More)
Devices for wrist rehabilitation must be able to make movements of the wrist quirky and complex. Powerball® is such a market existing device that can be used for wrist rehabilitation and also as a sports aid for strengthening the wrist. The operation of Powerball® is based on the gyroscope principle. While the gyroscope is spinning, the movement of the(More)
The smallest charging times required by fully discharged conventional batteries are some tens of minutes. This is an important limitation for mobile robot platforms. A previous paper already validated the possibility of integrating ultracapacitors and batteries in the same system. However, it has some significant limitations: 1) It works with an(More)
The large charging times required by conventional batteries constitute an important limitation in many applications. The use of ultracapacitors as energy storage elements allows substantially faster charging. This paper presents a power supply system developed in order to validate the possibility of providing a mobile robot platform with an electrical(More)
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