Note: Three wavelengths near-infrared spectroscopy system for compensating the light absorbance by water

M. Raheel Bhutta, Keum Shik Hong, Beop-Min Kim, Melissa Jiyoun Hong, Yun Hee Kim, Se Ho Lee

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

Given that approximately 80% of blood is water, we develop a wireless functional near-infrared spectroscopy system that detects not only the concentration changes of oxy- and deoxy-hemoglobin (HbO and HbR) during mental activity but also that of water (H2O). Additionally, it implements a water-absorption correction algorithm that improves the HbO and HbR signal strengths during an arithmetic task. The system comprises a microcontroller, an optical probe, tri-wavelength light emitting diodes, photodiodes, a WiFi communication module, and a battery. System functionality was tested by means of arithmetic-task experiments performed by healthy male subjects.

Original languageEnglish
Article number026111
JournalReview of Scientific Instruments
Volume85
Issue number2
DOIs
Publication statusPublished - 2014 Feb 1

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Near infrared spectroscopy
Hemoglobin
infrared spectroscopy
Wavelength
Water absorption
Microcontrollers
Photodiodes
wavelengths
water
oxyhemoglobin
Light emitting diodes
Water
Blood
hemoglobin
blood
photodiodes
electric batteries
Communication
light emitting diodes
modules

ASJC Scopus subject areas

  • Instrumentation

Cite this

Note : Three wavelengths near-infrared spectroscopy system for compensating the light absorbance by water. / Bhutta, M. Raheel; Hong, Keum Shik; Kim, Beop-Min; Hong, Melissa Jiyoun; Kim, Yun Hee; Lee, Se Ho.

In: Review of Scientific Instruments, Vol. 85, No. 2, 026111, 01.02.2014.

Research output: Contribution to journalArticle

Bhutta, M. Raheel ; Hong, Keum Shik ; Kim, Beop-Min ; Hong, Melissa Jiyoun ; Kim, Yun Hee ; Lee, Se Ho. / Note : Three wavelengths near-infrared spectroscopy system for compensating the light absorbance by water. In: Review of Scientific Instruments. 2014 ; Vol. 85, No. 2.
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