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This paper presents the development of tactile sensing chips, for the fingertips of humanoid robots. In the first phase of development, piezoelectric polymer-MEA (microelectrode array) based test chips have been realized. Each chip comprises of 32 microelectrodes, epoxy-adhered with a thin piezoelectric polymer (PVDF-TrFE) film. The diameter of each microelectrode or dasiataxelpsila (tactile element)...
This paper presents a novel design of highly twistable tactile sensing array which will be as artificial skin for robot applications. The proposed artificial skin, which employ extendable spiral electrodes, are highly flexible and durable so that it can conform to more complex surfaces without damaging the skin structure and the metal interconnects on the sensing array. Polydimethylsiloxsane (PDMS)...
We have successfully fabricated a large-area, flexible, ultrasonic system by integrating a two-dimensional polymeric ultrasonic sensing array with a printed organic transistor active matrix. The new sheet-type device can offer a cost-effective solution for a real-time three-dimensional imaging in free space and/or a large-area proximity sensor for robot skins.
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