A contact force measure sensor based on resistance-array-type sensor

As an ideal candidate for biology information detection, flexible resistance-array-type sensors have attracted extensive attention. But owing to the Neighbor Disturbance in resistance array, the accuracy of the sensors has been limited greatly. In the presented work, a novel resistance measuring circuit has been developed with equipotential shielding method, which shows a better accuracy in detecting. Furthermore, the variable accuracy of the circuit can be realized by utilizing different resistance. Meanwhile, a contact force measure sensor was designed following the proposed principle. Finally, a set of experiments have been conducted by detecting hard cores buried in soft gel to test and verify the sensitivity and feasibility of 2D shape recognition of the sensor.