6533b82efe1ef96bd1293b49
RESEARCH PRODUCT
Multi-spectral photoplethysmography biosensor
Renars ErtsLasma AsareJanis SpigulisEdgars Kviesis-kipgeUldis RubinsAndris Grabovskissubject
Optical fiberLaser diodebusiness.industryComputer scienceSignalPhotodiodelaw.inventionOpticslawPhotoplethysmogramAccumulator (computing)businessBiosensorComputer hardwaredescription
A photoplethysmography (PPG) signal can provide very useful information about a subject's hemodynamic status in a hospital or home environment. A newly developed portable multi-spectral photoplethysmography device has been used for studies of 11 healthy subjects. The developed optical fiber biosensor comprises one multi-wavelength laser diode (405nm, 660nm and 780nm) and a single photodiode with multi-channel signal output processing and built in Li-ion accumulator; special software was created for visualization and measuring of the MS-PPG signals. ARM7TDMI-S LPC2148, NXP (founded by Philips) 32 bit processor with clock frequency of 60 MHz performs measurement and analysis of the signal.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-05-05 | SPIE Proceedings |