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An infrared detector that uses nonlinear oscillation is proposed. The torsional oscillator has bi-material structure. When the infrared is incident and absorbed at the torsional oscillator increasing the local temperature, the thermal stress due to the difference of thermal expansions of the materials bends the oscillator. This bending hardens the spring constant of torsional oscillator and results...
This paper proposes a passive-type exoskeleton called PEXER IV (Passive Exoskeleton for Easy Running, version IV) as shown Fig. 1 and its design objectives for development. PEXER IV is a wearable-type device, aiming reduction of physical load of a runner. The development of the assistive exoskeleton for running has some difficulties. The exoskeleton must sufficiently exert force to support a part...
Development of technologies for people with disabilities is necessary to improve the quality of life of elderly people in the future aging society. A light compact arm balancer with three-dimensional acceleration sensors accomplishes that goal. This device particularly features a motion analysis system. Results of experiments show that the program ascertains the speed from the acceleration sensor...
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