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Good Vibrations: An Evaluation of Vibrotactile Impedance Matching for Low Power Wearable Applications
"... ABSTRACT Vibrotactile devices suffer from poor energy efficiency, arising from a mismatch between the device and the impedance of the human skin. This results in over-sized actuators and excessive power consumption, and prevents development of more sophisticated, miniaturized and lowpower mobile ta ..."
Abstract
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tactile devices. In this paper, we present the experimental evaluation of a vibrotactile system designed to match the impedance of the skin to the impedance of the actuator. This system is able to quadruple the motion of the skin without increasing power consumption, and produce sensations equivalent to a
Using Haptics to Address Mobile Interaction Design Challenges Protoyping and User Evaluation with a Handheld Tactile Display
, 2006
"... Current user interfaces for mobile and handheld computing platforms principally offer user interaction through the visual and auditory modalities. However, mobile devices are often used in contexts where vision and hearing are impaired. At the same time, more and more functionality is being layered ..."
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upon mobile devices, while the physical size of the display and keypad has remained small. This limits the rate of information that can be exchanged between the user and the system, and poses an interaction design challenge. Haptics offers a potential solution by providing an additional modality
