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This paper presents design analysis of an SU-8 based 2-DoF electrothermal microgripper by developing a closed-form analytical model. The analytical model considers both the electro-thermal and thermo-mechanical domains and relates the applied actuation voltage to the microgripper jaw tip displacement and gripping force on micro-object. The results obtained using developed analytical model are verified...
A very important aspect to fabricate MEMS devices, is understanding of the mechanical properties at micro-scale level. The mechanical properties of components not only depend upon the material but also on the micro-structure. Unlike other devices, MEMS components are developed from specialized micro fabrication processes in which they are subjected to cyclic loads thus producing intrinsic stresses...
This paper describes the design of a non-conventional chain drive mechanism for a mini-robot. A mini-robot named RUDYCUDY™ was designed. Chain drives are normally used when power or motion or both of them are to be transferred over a short distance. Various systems were available in the markets that had certain standards. To drive small scale robots no standard chain was available. In this study a...
An optimized circuit for processing of EMG signals has been designed and presented in this paper. This circuit acquires EMG signals from surface of the skin using bipolar electrodes and enables the amputee to control the prosthetic hand in an efficient manner. EMG can be defined as the electrical potential produced due to the contraction of muscle. It can be picked from the residual portion of muscles...
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