Design of a Current Source for Bioelectrical Impedance Measurement

Ke Ning Wang; Heng Zhao; Wei Wang

doi:10.4028/www.scientific.net/AMM.239-240.387

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 239-240Design of a Current Source for Bioelectrical...

Design of a Current Source for Bioelectrical Impedance Measurement

Abstract:

Current source with high output impedance is a key part in bioelectrical impedance measurement. In this paper, we presented a design of a current source based on the improved Howland current pump circuit. Then the performance of the proposed current source was simulated in Multisim software. The designed current source was implemented and its output impedance was tested. Both the simulated and tested results show that the proposed current source is a good choice for BI measurement.

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Periodical:

Applied Mechanics and Materials (Volumes 239-240)

Pages:

387-391

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.239-240.387

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Online since:

December 2012

Authors:

Ke Ning Wang, Heng Zhao, Wei Wang

Keywords:

Bioelectrical Impedance, Current Source, Howland Current Pump, Operational Amplifier

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References

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