Analysis of parameter effects on thrust force and optimum driving frequency in an electrostatic induction dielectric sheet conveyor
In recent years, electrostatic induction has been introduced as a new approach for transporting dielectric sheets. Electrostatic Induction Sheet Conveyor (EISC) is a kind of electrostatic induction actuator which can directly handle dielectric sheet objects, such as papers and plastic films in asynchronous state. The capability of sheet handling demands more studies to recognize parameters influencing thrust force and optimum driving frequency of dielectric sheets in this actuator. In this paper, using the proposed model in previous work, the effect of parameters including geometric parameters of slider and stator, electrical properties of dielectric sheet and environmental conditions on thrust force and optimum driving frequency of the actuator were analytically investigated.
An electrostatic induction actuator for dielectric sheet conveying
This paper analyzes sheet transportation using the principle of electrostatic induction motors. This sheet transportation method has the capability of positioning and feeding dielectric sheets in processes and can be an interesting alternative to the existing mechanical conveyor. Although electrostatic sheet transportation was previously proposed based on a unique actuation model, it had limitations in surface resistivity of transported sheets. To break this limitation this paper utilizes another actuation principle namely electrostatic induction for conveying dielectric sheets. This study paper proposes an analytical model for actuation, in which the optimum driving frequency is analytically predicted; showing good agreement with the measured data.
The Haptic Desktop: a novel 2D multimodal device
As computing gets embedded into our everyday lives and moves from PCs to wide varieties of devices, we need new and flexible ways to interact with technology. Recently, the appearance of multimodal systems has been recognized to offer richer user experiences by combining different natural input modes, i.e., speech, touch, pen, hand gestures, etc.. in a coordinated manner with multimedia system outputs. As a new generation of multimodal systems begins to define itself, one dominant theme is the integration and synchronization requirements for combining different modes strategically into whole systems; where we can distinguish basically three modalities: visual, auditive, and tactile (physiology of senses). In order to provide a broader range of signal integrations, actually limited by the conventional input devices of computers, it becomes necessary to ensure that these interfaces interact in a manner akin to the way human interacts in real environments. Therefore, The design and integration of a novel multimodal device developed at PERCRO is described. This multimodal device, named Haptic Desktop, has been designed to replace the conventional input devices used for accessing the resources of computers. Furthermore, to assure the usability of the interface so that operators can extract efficiently the principal features of each perceptual channel from the device, the graphical visualization has been integrated to the haptic system on a single desktop to satisfy the coherence and co-location designing issues.