DocumentCode
1221495
Title
An Electronc Circuit for Red/Infrared Oximeters
Author
Schibli, Eugen G. ; Yee, Sinclair S. ; Krishnan, Vedavalli M.
Author_Institution
Microtechnology Laboratory, Center for Bioengineering and Department of Electrical Engineering, University of Washington
Issue
1
fYear
1978
Firstpage
94
Lastpage
96
Abstract
An inexpensive electronic circuit is described for operation of a red/infrared oximeter that does not use fiberoptics. The circuit provides low-evel amplitude modulation of the LED currents. Narrow-band detectors separate the backscattered signal into the red and infrared components. An AGC loop performs the division (Ei/Er).
Keywords
Animals; Biomedical electrodes; Brain stimulation; Chemicals; Circuits; Electrical stimulation; Instruments; Light emitting diodes; Steel; Testing; Humans; Infrared Rays; Light; Oximetry;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/TBME.1978.326314
Filename
4122779
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