Data acquisition for electromagnetic tomography

Measuring device for fast and accurate acquisition of data sets for use in electromagnetic tomography
Applications such as electromagnetic tomography require measuring devices that can measure strongly attenuated signals in parallel at a large number of connections in the shortest possible time.
Description of the measuring system
The system architecture provides for distributed sensor units that are connected by a synchronization structure. The system collects data on the attenuation and phase shift of a penetrating electromagnetic wave with a signal frequency of 1 GHz from around 200 spatially distributed antennas.
The architectural independence of the measuring units means that individual measurements can be parallelized, which significantly reduces the overall duration of a measurement
The system can complete a full measurement sequence in a matter of seconds, whereas commercially available systems take hours.
Advantages
According to current knowledge, electromagnetic tomography is harmless to the human body and therefore suitable for continuous use. The system has a compact design and can be used on the move – for example in ambulances to detect strokes more quickly and initiate life-saving measures earlier. A graphic reconstruction algorithm enables the type and location of a bleed to be displayed. An automatic evaluation is currently under development and is intended to make the application even easier. A prototype is currently being clinically tested. The research work was awarded the EuMC Young Engineer Prize.

model of a stroke.
Erwin Schimbäck
Business Area Manager Sensors & CommunicationFurther reference projects
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Data acquisition for electromagnetic tomography
Applications such as electromagnetic tomography require measuring devices that can measure strongly attenuated signals in parallel at a large number of connections in the shortest possible time.