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The parallel kinematics machine tool HITA-STT (Stiffness Tracking Technology) developed by Willemin–Machines S.A. and EPFL is now able to machine. This machine can reach accelerations of 5g. It is characterized by a tilt of ± 60° around the B-axis. This ch ...
Progress in mobile robotics requires the researchers to access and improve all modules that compose the robot, from low-level mechanical components to high-level reasoning systems. This paper presents the development process of the robots built at the Auto ...
High speed rotation of small rotors is needed more and more in many industrial applications. Classical examples are compact devices like scanners, gyroscopes, centrifuge units and so on. The key to achieve high rotating speeds is to have contactless bearin ...
A new method of physical activity monitoring is presented, which is able to detect body postures (sitting, standing, and lying) and periods of walking in elderly persons using only one kinematic sensor attached to the chest. The wavelet transform, in conju ...
High precision positionning and assembly as well as micro-machining require dedicated devices. These devices have to provide high repeatability and precision on several degrees of freedom (dof). High dynamic characteristics are also sought to reach short t ...
This paper presents the genesis of the Expo.02 robot. RoboX the tour guide robot has been built from the scratch for this project based on the experience of the Autonomous Systems Lab. The production of 11 of those machines has been guaranteed by a spin-of ...
Microstereolithography is a technology at the interface of the microengineering and rapid prototyping domains. It has evolved from the stereolithography technique, and is also based on a light-induced layer- stacking manufacturing, As the resolution of the ...
In modern robots and industrial machine tools, acceleration times begin to prevail over cruising times. This paper demonstrates the important relations between acceleration shape and the various characteristics of a drive system. These characteristics are ...
A rotary piston machine having a housing (1) provided with a cavity (2) comprising a rotor (6', 6) rotating around a first axis and a compression plate (16) dividing said cavity into separate volumes, the machine further being provided with at least one in ...
Key to the design of human-machine gesture interface applications is the ability of the machine to quickly and efficiently identify and track the hand movements of its user. In a wearable computer system equipped with head-mounted cameras, this task is ext ...