A Fully 3D‐Printed Wearable Piezoresistive Strain and Tactile Sensing Array for Robot Hand

Abstract

The wide application prospects of flexible strain sensors and pressure sensors in robotic perception have led to an urgent demand for the high‐precision customized manufacturing and flexible integration of such devices. Herein, a 3D‐printed wearable strain and tactile sensing array is developed for robotic perception by integrating a flexible strain sensor and a pressure sensor with porous structures. The flexible strain sensor has a wide linear measurement range of 67.5% with a sensitivity of 2.64. Meanwhile, the flexible pressure sensor has a continuous pressure‐monitoring ability in the range of 0–1 N, and it is particularly sensitive to small pressures within 0.2 N. Both the sensors provide a stable output for the seamless sensing of different stimuli, and devices from the same batch provide highly consistent responses. By fully exploiting the flexibility of digital light‐processing 3D printing, the sensing array is customized for a robotic hand to realize the grip and finger bending perceptions of the manipulator.

Material Choice and Structure Design of Flexible Battery Electrode

“…Acquisition of surpassing human perception capabilities for robots is the goal for robotics and electronic skin. [ 121 ] Moreover, flexible electronic skins and prostheses have been supplied for disabilities for a better quality of life. [ 122 ] Flexible electronics can revolutionize robotics and prosthetics and bring about the next major revolution in the electronics industry.…”

3D-printing-assisted flexible pressure sensor with a concentric circle pattern and high sensitivity for health monitoring

“…Recently, flexible electronic devices that can sense important parameters (e.g., pressure, strain, and temperature) and/or wearable devices have been studied because of their various applications 1,2 , such as in health monitoring [3][4][5][6] , robotics [7][8][9] , and human-machine interface sensing for virtual reality and/or sports monitoring [10][11][12] . Among these devices, flexible pressure sensors play a very important role in health monitoring by detecting blood pressure and heartbeat, which indicate human health conditions 13 .…”

Porous Nanocomposites with Enhanced Intrinsic Piezoresistive Sensitivity for a Highly Integrated Multimodal Tactile Sensor

“…4,5 Thereinto, Intrinsic piezoresistive porous nanocomposites that solely rely on volume strain have shown remarkable potential in simulating human tactile receptors, attracting interest from various researchers in this field. 6,7 Piezoresistive elastomeric nanocomposites, featuring conductive nanoparticles blended into an insulating elastomeric matrix to form a conductive path, represent an attractive sensing platform for a range of applications. [8][9][10] .…”