Pulse Oximetry Simulator
Generates a plethysmograph waveform for a given SpO2, pulse rate, and perfusion index, and shows the ratio-of-ratios (R) a pulse oximeter actually computes to get there.
R (ratio of ratios) ~0.52 on the teaching curve SpO2 ~= 110 - 25*R -> reads back as 97%.
SpO2
97%
Pulse
--bpm
Perfusion
Adequate
R value
0.52
R (ratio of ratios) ~0.52 on the teaching curve SpO2 ~= 110 - 25*R -> reads back as 97%.
What a BMET verifies with this
- -The monitor reports the set SpO2 and pulse rate correctly
- -Low-perfusion behavior - does it report a number or flag an unreliable signal
- -Motion-artifact rejection
Reference
- Bench analog
- Index 2, ProSim SpO2 functional tester
- Standards referenced
- ISO 80601-2-61
This is a teaching and verification-practice model built from published signal theory and the standards named above, not a calibrated instrument and not a claim about any specific commercial product. Always follow your own analyzer's documentation and your facility's policy for real compliance or acceptance testing.