Conditioning a current source using OCCII-GIC for EIT systems
نویسندگان
چکیده
Conditioning a current source using OCCII-GIC for EIT systems Ali Zarafshani, Thomas Bach, Wei Wang and Chris Chatwin Instrumentation and Hardware, Bioelectrical Research Group, Engineering and Design, University of Sussex, England, BN19QT Sensatech Research, Brighton, England, BN2 0GP [email protected] Abstract: A 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 and useable maximum frequency. We have designed a circuit to cancel this capacitance, using an operational second generation Current Conveyor based on a General Impedance Converter (OCCII–GIC). The simulation shows the EIT system useable above 5MHz.
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