Hot properties

New sensor technology will enable engineers to accurately measure the position, speed and motion of materials at temperatures as high as 1,000°C, its UK developer has claimed.

The technology, which is being commercialised by an Oxford University spin-out called Oxford RF Sensors, has already been adapted for use in turbochargers for diesel engines. The company has demonstrated the technology with a Mercedes V8 engine, and is adapting it for use in big diesel trucks. Oxford RF Sensors also hopes to apply the sensors to monitoring the turbine blades of jet engines.

The sensors are capable of identifying four different electromagnetic signatures that metals and plastics share. By measuring these parameter the sensors can identify any metal or plastic, said the firm.

Oxford RF Sensors claimed its sensors will be used for their ability to measure position, speed and motion with greater accuracy than is currently possible from robust sensor technologies. According to the company, existing sensors, such as digital callipers, are accurate enough to meet engineers’ requirements. They stop working, however, if they come into contact with even a drop of fluid.