I set up Rocoil Limited in 1991. Since then we have developed a wide range of products and techniques to cope with different current measurement situations and can easily modify these for special requirements. Rocoil's aim is to promote the use of Rogowski coils; we appreciate that this technology can be new even to experienced electrical engineers. We try to understand specific current-measurement applications and provide the best solution. A detailed knowledge of the Rogowski coil means that we can work out specific measuring requirements that are tailor made for each of our customers, in a diverse number of industries. All of our products are made to order and are therefore customer-specific. We have manufacturing capability from developing prototypes to large production runs. We've made coils that are measured in millimetres and coils that fit around wind turbines, coils that measure lightning striking aircraft parts and coils that find faults in railway signaling. The applications are many and varied. A project starts with a customer’s requirements to see what we can do to meet them. We try to understand what the customer is trying to achieve so that we can provide the best solution rather than supplying the nearest item 'off the shelf'. If we think a Rogowski coil is not suitable we will say so.Our expertise can solve problems from measuring extremely large currents, providing a measuring coil to fit in a restricted space, or to meet certain environmental conditions. We can modify integrators and coils for any current required rather than only provide a standard product. We take for granted that customers can order any length of flexible coil, and any quantity, and they do.

Investigation of problems associated with electricity generation in power stations, mainly large generators. This included: Overheating in generators (core faults). Generator flux testing techniques. Magnetisation of turbine shafts. Current flow in generator support structures. Sudden short circuit testing

Research into superconducting materials for a power transmission cable. I worked with metallurgists and developed experimental techniques for measuring superconducting properties. Theoretical analysis of cable configurations.

Research into superconductivity. Laboratory development.