(EN)Load measuring sections (50, 52) are provided with reaction sensors (50a, 50b, 52a, 52b) for measuring the loads at two positions, i.e. the tiptoes and the heels, on the sole side of the right and left feet of a person (12) wearing the device. The reaction sensor (50a) detects the reaction to a load on the front side of the right foot (right tiptoe), and the reaction sensor (50b) detects the reaction to a load on the rear side of the right foot (right heel). The reaction sensor (52a) detects the reaction to a load on the front side of the left foot (left tiptoe), and the reaction sensor (52b) detects the reaction to a load on the rear side of the left foot (left heel). Each reaction sensor (50a, 50b, 52a, 52b) is arranged to detect, based on the variation in capacitance, the loads acting on the right and left feet by the walking motion of the person (12) wearing the device, and can detect the variation in load incident to movement of weight and whether or not the foot of the person (12) wearing the device contacts the ground surface.
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Парализованные пациенты с нетерпением ждут массовой системы управления предметами силой мысли. Учёные и инженеры вроде уже не раз и не два показывали такие опытные установки в действии. Вот только с их серийностью, не говоря уже о массовости, – проблема. Три новые технологии, появившиеся недавно, должны существенно продвинуть работы на данном фронте.

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In this paper, we present the dynamics, control, and preliminary experiments on a wearable upper arm exoskeleton intended for human users with four degrees-of-freedom (dof), driven by six cables. The control of this cable-driven exoskeleton is complicated because the cables can transmit forces to the arm only under tension. The standard PD controllers or computed torque controllers perform only moderately since the cables need to be in tension. Future efforts will seek to refine these control strategies and their implementations to improve functionality of a human user.

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Категория: Научные статьи | Нет комментариев »

Design of a flapping mechanism for flapping wing micro air vehicles (FWMAV) is presented based on a mathematical model of insect thorax. This model also includes an aerodynamic model of flapping wings. Using experiments on dynamically scaled wings and numerical optimization, the mechanism is tuned for peak aerodynamic performance. The thorax model is used to understand the mechanics of the biological flapping mechanism and reveals the significance of rotational stiffness and inertia distribution in flapping wings. Experiments conducted on the actual thorax based mechanism validate theoretical findings and also show significant lift generation capability.

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Перчатки для «виртуальной реальности», оснащенные целым набором сенсоров, широко применяются для получения информации о движении рук пользователя.

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