NEAR INFRARED-TRANSMISSION SPECTROSCOPY OF TONGUE TISSUE

摘要

Non-invasive measurement of blood glucose levels is carried out using transmission spectroscopy on the tongue of the individual. The near infrared (NIR) first overtone spectral region between 7000 and 5000 cm-1 (1.43 - 2 νm) is well suited for non-invasive measurements. Because the tongue is one of the leanest accessible sights in the body, variations in readings due to body fat are minimal. Further, the tongue is well thermostated and vasculated which are important factors in selecting a measurement site.