This proposal was concerned with the development of distributed high temperature electronics platform for integration with sensor elements to provide a high integrity serial digital data link that can be fed into FADEC (Full Authority Digital Electronic Control) and/or EHMS (Engine Health Monitoring System) units on an aircraft engine. To date most of the work undertaken and reported had been in the United States, which has concentrated on the development of high temperature electronic control systems, with high levels of functionality and more complex components, such as the Honeywell HTMOS products.

This proposal aimed to design and develop a lower cost distributed electronics platform with fit for purpose functionality that can be deployed close to the sensors and integrated into a miniature multi-chip module. The unit was designed to provide signal conditioning for a range of sensor outputs and managing the signal to enable high integrity digital signal transmission to the FADEC/EHMS units. The target long temperature of operation was 250oC for up to 5 years.