… an internal position control correction device that allows it to correct for … propulsion
system which has not currently been used for land-based holonomic vehicles [26]. The air-propulsion …

… in the final construction open the possibility of using Rezero as a human-ridable device. …
et al. using a principle called inverse mouse-ball drive [8]. With this method of ball actuation the …

… of an inverse mouse-ball drive. The development was inspired by the … omnidirectional
wheels for its ball drive transmission. The … as the ball drive mechanism. The robot is modeled as …

… The basic drive equations pertain to the ball drive, the axial piston drive, and to the radial …
It is often of interest to electrical engineers to search for analogies between devices in other …

… the body, the propulsion and the ball. The most complex is the propulsion subsystem, which
… we propose for the management of all sensing devices, control, signal processing and …

… Vex motors for propulsion. Proportional controllers are … devices and power systems, the
software systems, and the test prototype. Additional data sheets and specifications for all devices …

… Connell and I had promised Coach Teevens a working device. I called Connell, who was …
Our biggest goal that summer was to improve the ball drive. We tried many different air-filled …

… In particular, it was analyzed a Ballbot with a ball drive-mechanism composed of three …
Magnetometers are used to provide a direction reference for our electronic device. It gives a …

… This paper highlights several major test facilities for large-scale propulsion devices, and
summarizes the varied nature of the recent test projects conducted at the Stennis Space Center (…

… resistance forces (the drag forces consist of the force against the pressure in the emptied
chamber and the mass moment of inertia of the moving parts, ie, the ball valve ball, ball drive …