How to create radio chips capable of working in hell
5 December 2018
Researchers at the Royal Swedish Institute of technology (kth), the University of Arkansas (USA) and the international Institute of electrical and electronics engineers (IEEE) are developing electronic devices designed to operate in the most extreme conditions. One such project is an all – terrain vehicle to study the surface of Venus, where the average daily temperature is close to +500 °C, and the surrounding atmosphere is filled with sulfuric acid vapor.
But space is not the only place with such conditions. For example, the temperature inside the gas generator is about +1000 °C. to check the condition of the turbine blades and other parts, it is necessary to completely stop the unit for a long time, which leads to multi-million losses of energy producers.
This problem could be solved by special sensors installed inside the turbine, which could be used to monitor its technical condition during operation. However, to do this, they must withstand a truly hellish Inferno — about +1000 °C, and, being attached to the rotating blades – also a load of 14000 GS.
Currently, scientists At the University of Arkansas are developing sensors for the combustion chamber, which will become part of a computerized system to control the efficiency of the diesel engine. They are also studying the possibility of installing electronic devices on the bit for drilling oil wells, where the temperature can reach + 150 °C.
As a material for the manufacture of "extreme" electronics, scientists have chosen gallium nitride (GaN) and silicon carbide (SiC), which have good thermal conductivity and the ability to work steadily at high temperatures.
The first device was a mixer, developed by the team of Professor Anna Rusu from KDN and manufactured by specialists of the University of Arkansas, led by electrical engineering Professor Alan Mantacom. The device converts a 59-megahertz radio signal into 500 kHz, which is necessary for its further processing.