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Current Source for Multifrequency Broadband Electrical Bioimpedance Spectroscopy Systems : A Novel Approach
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- Seoane, Fernando, 1976- (författare)
- School of Engineering, University College of Borås
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- Bragós, Ramon (författare)
- Department of Electronic Engineering, Technical University of Catalonia
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- Lindecrantz, Kaj, 1951- (författare)
- School of Engineering, University College of Borås
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(creator_code:org_t)
- 2006
- 2006
- Engelska.
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Ingår i: 2006 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vols 1-15. - 1424400325 - 9781424400324 ; , s. 5121-5125
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- New research and clinical applications of broadband electrical bioimpedance spectroscopy arise; increasing the upper limit frequency used in the measurement systems. The current source, an essential block of an electrical bioimpedance impedance analyzer, must have a large-enough output impedance at any frequency of operation to keep the output current constant regardless of the value of working load. In this paper a novel approach to increase the output impedance of a common voltage controlled current source is proposed. The circuit is analyzed, implemented and tested. The results, remarking the significant effect of the circuit parasitic capacitances, show a clear increment of the output impedance, but smaller than the originally expected
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
Nyckelord
- active networks
- bioelectric potentials
- biomedical measurement
- electric impedance imaging
- electric impedance measurement
- power supplies to apparatus
- circuit parasitic capacitance effect
- common voltage controlled current source
- electrical bioimpedance impedance analyzer
- measurement system
- multifrequency broadband electrical bioimpedance spectroscopy
- output impedance
- working load
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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