Published in

Wiley, Advanced Engineering Materials, 12(24), 2022

DOI: 10.1002/adem.202200704

Links

Tools

Export citation

Search in Google Scholar

Printing of Tactile Sensors Upon the Surface of Pneumatic Soft Gripper by Direct Writing and Electrospraying to Enable Intelligent Grasping

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

Full text: Unavailable

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

Soft grippers with sensory‐integration mimicking humanoid hands, capable of grabbing various kinds of objects in a safe and easy manner, have numerous potential applications in advanced areas. However, precise sensing capabilities of the soft grippers for external stimuli are still nascent and fabrication of integrating sensory receptors remains a challenge. Herein, multiple tactile (pressure, temperature, and humidity) sensors are fabricated on the surface of pneumatic soft fingers by printing technologies including direct writing and electrospraying to simultaneously detect external stimuli while grasping. Composites composed of graphene nano‐platelets (GNPs)/multi‐walled carbon nanotube (MWCNT)/polyethylene oxide (PEO), reduced graphene oxide (rGO), and graphene oxide (GO) are selected as sensitive materials for pressure, temperature, and humidity sensor, respectively. The fingers are able to bend with an angle of 75° and output force of 0.133 N under air pressure of 12 kPa. The printed tactile sensors exhibit good sensing performance. The application of grasping a lemon, a cooked egg, and a plum demonstrates that the pneumatic soft gripper owns the capability of accurately detecting tactile changes during grasping different objects. Thus, such integration methods by direct writing and electrospraying will open a facile technical platform for constructing the soft grippers with tactile sensors.