Within a fusion machine there is a need to remove and replace components, due to the radioactive hazards present, it is not feasible to provide human access. Reliable remote fastening is critical in realising remote maintenance of components in these environments. Force torque sensing is a valuable tool for the robot to interact with its environment, essentially providing a sense of touch to the remote handling system. 

Through an embedded engineering resource contract, M5tec personnel investigated force/torque systems, evaluated the availability of these technologies, and assessed their suitability for use in a radioactive environment. This research led to the acquisition of sensing equipment and a robotic gripper with custom fingers designed for manipulating hex bolts. A demonstration project was conducted in collaboration with an industry partner, involving the design, commissioning, and testing phases. The operation of the robot and sensor was studied, resulting in recommendations that will guide future efforts towards sustainable fusion remote handling activities.  

The following services were provided by M5tec’s embedded Engineer: 

• Conducting an industry survey of existing force torque sensing technologies, including potential solutions for the demonstration of remote bolt driving operations.  
• Down-Selection of the technologies, liaising with suppliers in the specification of the equipment, through to procurement and delivery. 
• Preparing specification documents for the outsourcing of key aspects of the project to Engineering Design Services partners. 
• Reviewing the generated design documents and providing guidance towards meeting the requirements of the project.  
• Working with the industry partners in the realisation and demonstration of the force torque remote handling systems. 

The key outcomes of the project include: 

• A better understanding of the current state of the art for force torque sensing in rad-hard remote handling systems 
• Physical trials with an industry partner, upskilling the supply chain and increasing UK capability in robotics. 
• The generation of recommendations as a conclusion to the project outlining possible future work. 
  
  

The embedded engineer’s extensive knowledge of remote handling and control systems was crucial in the successful delivery of this project. Their research into force torque sensing technologies enabled the development of a reliable remote fastening system, essential for maintaining components within a fusion machine environment. By leveraging their experience in designing and commissioning robotic systems, M5tec ensured that the project met its objectives and provided valuable recommendations for future remote handling activities. The collaboration with industry partners and the hands-on trials conducted by M5tec’s embedded engineer significantly enhanced the project’s outcomes, demonstrating their commitment to innovation and excellence in engineered solutions. 

This project was awarded to M5tec under the Embedded Engineering Resource multi-supplier framework in which M5tec are a subcontractor to AtkinsRéalis Ltd.