【摘 要】
：
In order to eliminate the drawbacks of conventional force feedback gloves,a new type of master finger has been developed.By utilizing three"four-bar mechanism j
【机 构】
：
State Key Laboratory of Robotics and System,Institute of Robotics and Mechatronic
论文部分内容阅读
In order to eliminate the drawbacks of conventional force feedback gloves,a new type of master finger has been developed.By utilizing three"four-bar mechanism joint"in series and wire coupling mechanism,the master finger transmission ratio is kept exactly 1:1.4:1 in the whole movement range and it can make active motions in both extension and flexion directions.Additionally,to assttre faster data transmission and near zero delay in the master-slave operation,a digital signal processing/field programmable gate array(DSP/FPGA-FPGA)structure with 200μs cycle time is designed.The operating modes of the master finger can be contact or non-contact,which depends on the motion states of a slave finger,free motion or constrained motion.The position control employed in non-contact mode ensures unconstrained motion and the force control adopted in contact mode guarantees natural contact sensation.To evaluate the performances of the master finger,an experiment between the master finger and a DLR/HIT dexterous finger is conducted.The results demonstrate that this new type master finger can augment telepresence.
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