The concepts of pose, posture, formation and contortion are defined for serial, parallel and hybrid kinematic systems. Workspace and jointspace structure is examined in terms of these concepts. The inter-relationships of pose, posture, formation and contortion are explored for a range of robot workspace and jointspace types.

ASAP is a position-measurement instrument developed to measure human hand tremor. It makes 1000 five-degree-of-freedom position measurements per second with 3 micron resolution over a 3cm workspace. The measurement principle is optical triangulation of modulated lights on the probe using position-sensitive-diode (PSD) sensors.

The concepts of pose, posture, formation and contortion are defined for serial, parallel and hybrid kinematic systems. Workspace and jointspace structure is examined in terms of these concepts. The inter-relationships of pose, posture, formation and contortion are explored for a range of robot workspace and jointspace types.

A sensor based navigation algorithm for a mobile robot which assures a convergence property is proposed when the robot is navigated from a given start position to a goal position while avoiding moving and fixed obstacles. This algorithm guides the robot toward the goal by using its sensor information in an unknown environment. Conventional sensor based navigation algorithms such as Bug algorith...

A fundamental feature of a manipulator is the capacity of its workspace because it influences on the manipulator design, in the manipulator position in the work environment and in the its dexterity. In the case of 3R manipulators, it is represented by a revolution solid. Thus, in this paper the workspace volume is calculated based on the area of its radial section. An optimization problem is fo...

23 24 Previous findings suggest the posterior parietal cortex (PPC) contributes to arm 25 movement planning by transforming target and limb position signals into a desired reach 26 vector. However, the neural mechanisms underlying this transformation remain unclear. 27 Here we examined the responses of 109 PPC neurons as movements were planned and 28 executed to visual targets presented over a ...

Parallel manipulators are an interesting alternative to serial robots given the important mechanical and kinematic advantages offered. Nevertheless, they often present more complex and smaller workspaces with internal singularities (Altuzarra et al., 2004; Gosselin & Angeles, 1990). Thus, the workspace size, shape and quality are considered some of the main design criteria of these robots (Merl...