%0 Journal Article %A Hyuck Ki Hong and Young Chang Jo and Yeon Shik Choi and Beom Joon Kim and Hyo Derk Park %D 2009 %J International Journal of Electronics and Communication Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 36, 2009 %T Development of a Non-invasive System to Measure the Thickness of the Subcutaneous Adipose Tissue Layer for Human %U https://publications.waset.org/pdf/1653 %V 36 %X To measure the thickness of the subcutaneous adipose tissue layer, a non-invasive optical measurement system (λ=1300 nm) is introduced. Animal and human subjects are used for the experiments. The results of human subjects are compared with the data of ultrasound device measurements, and a high correlation (r=0.94 for n=11) is observed. There are two modes in the corresponding signals measured by the optical system, which can be explained by two-layered and three-layered tissue models. If the target tissue is thinner than the critical thickness, detected data using diffuse reflectance method follow the three-layered tissue model, so the data increase as the thickness increases. On the other hand, if the target tissue is thicker than the critical thickness, the data follow the two-layered tissue model, so they decrease as the thickness increases. %P 2401 - 2405