Document Detail


A low noise, non-contact capacitive cardiac sensor.
MedLine Citation:
PMID:  23367049     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The development of sensitive, non-contact electric field sensors to measure weak bioelectric signals will be useful for the development of a number of unobtrusive health sensors. In this paper we summarize our recent work on a number of specific challenges in the development of non-contact ECG sensors. First, we considered the design of a low noise sensor preamplifier. We have adapted circuit designs that incorporate a double feedback loop to cancel the input transistor leakage current while providing stable operation, fast settling time and good low frequency response without the need for ultrahigh value resistors. The measured input referred noise of the preamplifier in the frequency band 0.05-100 Hz is 0.76 µV(rms), which is several times lower than existing ECG preamplifiers.
Authors:
GuoChen Peng; Mark F Bocko
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference     Volume:  2012     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2012  
Date Detail:
Created Date:  2013-01-31     Completed Date:  2013-08-01     Revised Date:  2014-08-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4994-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Amplifiers, Electronic*
Computer-Aided Design
Electric Capacitance
Electrocardiography / instrumentation*
Equipment Design
Equipment Failure Analysis
Reproducibility of Results
Sensitivity and Specificity
Signal-To-Noise Ratio
Transducers*
Transistors, Electronic*
Wireless Technology / instrumentation*
Grant Support
ID/Acronym/Agency:
R01 HD060789/HD/NICHD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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