Acronym · Photonics, MEMS & Sensors
PPG (Photoplethysmography)
An optical measurement that shines LED light into tissue and detects the small pulsatile change in reflected or transmitted intensity caused by blood volume, yielding heart rate and blood oxygen estimates.
- Also known as
- Optical heart rate sensing
- Type
- Acronym
- Domain
- Photonics, MEMS & Sensors, Sensor interfaces
Notes
The sensor behind every optical wrist heart rate monitor; motion artefact rejection is the hard engineering problem.
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