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Josep Solà; Fabian Braun; Andy Adler (2015)
Publisher: Swiss Center for Electronics and Microtechnology
Types: Other
Subjects: Q, R, T, Electrical Impedance Tomography, Biomedical Engineering
Multi-Frequency EIT has been developed to evaluate the permittivity spectrum of a medium using an improved Howland source. Stray capacitance reduces the output impedance, bandwidth of the data collection leading to erroneous measurements. To address this, we have designed a current source, which uses a novel OCCII - GIC to cancel stray capacitance. The system achieves high output impedance over a 5 MHz frequency range.

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