The Role of Amplitude Modulated Ultrasonic Standing Waves and Infrared Light in Noninvasive detection of Blood Glucose Levels

摘要

The experimental technique for noninvasive blood glucose level detections using amplitude modulated ultrasound and infrared technique has been proposed and investigated here. Amplitude modulated ultrasonic standing wave has been generated here utilizing the carrier wave, modulating wave units and 40 kHz ultrasonic transmitter respectively. The produced amplitude modulating ultrasonic radiating wave has been applied over the target area such as human finger. This amplitude modulating ultrasonic wave initiates the process of vibrations in that respective blood tissue medium of the human finger. The molecules present in that medium vibrate specifically according to their physical characteristics at particular frequency responses. The glucose sensitive 940nm based near infrared light wavelength has been applied here to recognize those explicit vibrations specific to glucose molecules in that respective blood tissue medium. The output signal generates peak to peak amplitude variation in the Fast Fourier Transform domain with respect to change in blood glucose concentration levels. This light acquired output signal has been processed for blood glucose level information analysis and detection purposes. This method has been conducted over human healthy subjects for investigation purposes only. The promising result acquired through this new technique has been reported in this research paper.