Non-invasive analyte measurement device having increased signal to noise ratios

摘要: A non-invasive analyte measurement device having increased signal to noise ratios is disclosed herein. Typically, the glucose self-normalizing in that it does not employ an independent reference sample its operation. The uses attenuated total reflection (ATR) infrared spectroscopy. used on a fingertip and compares two specific regions of measured spectrum determine blood level user. This suitable for monitoring levels human body especially beneficial users diabetes mellitus. Moreover, utilizes periodically modulated optical at least one lock-in amplifier correlate signals gain maximum sensitivity signal-to-noise ratio. procedure can be other materials which exhibit unique mid-IR signatures type described herein are found appropriate outer skin.