P‐16.3: A Tactile Sensor Interface Formed by Two TFTs and One Capacitor to Enable Dynamic and Static Force Sensing

Abstract

In this article, we propose an interface circuit formed by thin film transistor(TFT) for tactile sensing applications. This interface circuit is composed of two TFTs and a capacitor, in connection with a polyvinylidenefluoride (PVDF) transducer for force sensing. An analytical model is presented to explain the working principle of the interface circuit, and an experimental study of a 10×10 tactile sensing array is built to evaluate the feasibility of the circuit. Our study shows such interface circuit is promising to obtain the dynamic and static force sensing.

3: A Machine Haptic System based on a Flexible Tactile Sensor Array Enabling Material Classification and Texture Recognition

“…Here a polyvinylidene difluoride (PVDF) tactile sensor is used as a tactile receiver, as a piezoelectric tactile sensor, is of high sensitivity, good dynamic response and low power consumption. A neuromorphic circuit formed by thin film transistors, is performed by our group previously [10]. It has been used to acquire the tactile signal from the tactile sensor array and the signal processor is an artificial neuron network, which can classify the materials.…”