A Tent Map Based AD Conversion Circuit for Robot Tactile Sensor

Abstract EN

Force and tactile sensors are basic elements for robot perception and control, which call for large range and high-accuracy amplifier.

In this paper, a novel A/D conversion circuit for array tactile sensor is proposed by using nonlinear tent map phenomenon, which is characterized by sensitivity to small signal and nonlinear amplifying function.

The tent map based A/D conversion circuits can simultaneously realize amplifying and A/D converting functions.

The proposed circuit is not only simple but also easy to integrate and produce.

It is very suited for multipath signal parallel sampling and A/D converting of large array tactile sensor.