University of the West of Scotland (UWS) researchers, aims to develop sensors which provide enhanced capabilities to robots, helping improve their dexterity and motor skills, through the use of accurate pressure sensors which provide haptic feedback and distributed touch.

Figure 1: 3D sensor s can transform prosthetics and robotic limbs.

Figure 1 shows that the devices, made from 3D graphene foam, sense feedback when the material is put under pressure and causes a change to its electronic resistance.Professor Des Gibson,said the advanced technology “could help transform robotic systems.” [1]

Over recent years the advancements in the robotics industry have been remarkable, however, due to a lack of sensory capabilities, robotic systems often fail to execute certain tasks easily. For robots to reach their full potential, accurate pressure sensors, capable of providing greater tactile ability, are required.

Our collaboration with Integrated Graphene Ltd, made from 3D graphene foam, which offers unique properties when put under mechanical stress, the sensors use a piezoresistive approach. This means that when the material is put under pressure it dynamically changes its electric resistance, easily detecting and adapting to the range of pressure required, from light to heavy.

3D graphene foam, has the capability to mimic the sensitivity and feedback of human touch, which could have a transformative impact on how robotics can be used for a whole range of real-world applications from surgery to precision manufacturing.

The unique property of Gii makes it suitable for use in other applications like disease diagnostics and energy storage, so we’re always very excited to be able to demonstrate its flexibility in projects like this one. [2]

Dr. Carlos Garcia Nunez, added: “Within robotics and wearable electronics the use of pressure sensors is a vital element, to provide either an information input system, or to give robotic systems human-like motor skills.

An advanced material like 3D graphene foam offers excellent potential for use in such applications, due to its outstanding electrical, mechanical, and chemical properties. Our work shines a light on the significant potential for this technology to revolutionize the robotics industry with dynamic pressure sensors.”

The next stage of the project – funded by UWS, Integrated Graphene Ltd, SRPe and NMIS – will look to further increase sensitivity of the sensors, before developing for wider use in robotic systems. [3]

References:

1. https://www.independent.co.uk/news/science/university-manufacturing-scotland-b2135288.html
2. https://scitechdaily.com/advanced-new-sensors-could-transform-prosthetics-and-robotic-limbs/
3. https://www.graphene-info.com/researchers-develop-sensors-based-graphene-foam-better-prosthetics-and-robotics

Cite this article:

Sri Vasagi K (2022), New 3D Sensors can Transform Prosthetics and Robotic Limbs, Anatechmaz, pp.146