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Posted by Old Sleeper on January 27, 2005 at 16:30:05:In Reply to: Re: oximeters posted by GRD on January 27, 2005 at 07:02:39:
Is one oximeter internal to the acquisition system and the other external?
Do you have as much control over the internal one, to set sampling rates and such forth?
If one is external, is the input to the acquisition system calibrated manually before each study?
Oximeters have a +/- 2% error in reading. This increases exponentially for each device it passes through, meaning the external oximeter, having to go through the acquisition system would be less accurate than the internal oximeter which feeds direct to computer/monitor. But this cannot account for more than a 6% difference in readings!
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