Wu Jianfeng, He Shangshang, Li Jianqing, Song Aiguo
School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China.
Sensors (Basel). 2016 Feb 19;16(2):253. doi: 10.3390/s16020253.
Using a long, flexible test cable connected with a one-wire voltage feedback circuit, a resistive tactile sensor in a shared row-column fashion exhibited flexibility in robotic operations but suffered from crosstalk caused by the connected cable due to its wire resistances and its contacted resistances. Firstly, we designed a new non-scanned driving-electrode (VF-NSDE) circuit using two wires for every row line and every column line to reduce the crosstalk caused by the connected cables in the circuit. Then, an equivalent resistance expression of the element being tested (EBT) for the two-wire VF-NSDE circuit was analytically derived. Following this, the one-wire VF-NSDE circuit and the two-wire VF-NSDE circuit were evaluated by simulation experiments. Finally, positive features of the proposed method were verified with the experiments of a two-wire VF-NSDE prototype circuit. The experiment results show that the two-wire VF-NSDE circuit can greatly reduce the crosstalk error caused by the cables in the 2-D networked resistive sensor array.
使用与单线电压反馈电路相连的长柔性测试电缆，以共享行列方式的电阻式触觉传感器在机器人操作中表现出灵活性，但由于连接电缆的线电阻和接触电阻，会受到串扰的影响。首先，我们设计了一种新的非扫描驱动电极（VF - NSDE）电路，每行线和每列线使用两根线，以减少电路中连接电缆引起的串扰。然后，通过分析推导了两线VF - NSDE电路中被测元件（EBT）的等效电阻表达式。接下来，通过仿真实验对单线VF - NSDE电路和两线VF - NSDE电路进行了评估。最后，通过两线VF - NSDE原型电路的实验验证了该方法的积极特性。实验结果表明，两线VF - NSDE电路可以大大降低二维网络化电阻式传感器阵列中电缆引起的串扰误差。
