An FPGA-based electrical impedance tomography system combines high-speed data acquisition and wide-bandwidth operation in a portable platform for imaging applications.
Researchers have developed a portable electrical impedance tomography (EIT) system based on a FPGA, providing a compact platform for high-speed and wide-bandwidth impedance imaging. The system is designed to address limitations associated with conventional EIT equipment, particularly its size, acquisition speed and bandwidth.
The system uses an FPGA to handle the high-speed acquisition and processing requirements of EIT. Electrical currents are applied through electrodes while the resulting voltage responses are measured to determine variations in electrical impedance within the target. These measurements can then be used to reconstruct an image of the internal structure.
A key feature of the platform is its ability to operate across a wide frequency range while maintaining high-speed data acquisition. This allows the system to collect more impedance information and can support applications where changes in electrical properties need to be monitored rapidly. The FPGA-based architecture also provides flexibility for implementing different acquisition and processing configurations.
The portable design is intended to make EIT technology more suitable for applications outside conventional laboratory equipment. By integrating the required electronics into a smaller system, the researchers aim to provide a platform that can be used for experimental imaging and other applications requiring portable impedance measurements.
The FPGA-based approach demonstrates how programmable hardware can be used to build faster and more flexible EIT equipment. Combining portability with high-speed, wide-bandwidth acquisition provides a foundation for further development of impedance imaging systems and their potential applications.
