Cholesterol detection using optical fiber sensor based on intensity modulation

International Conference on Physical Instrumentation and Advanced Materials

物理学;材料科学

Budiyanto, Moh^1,2 ; Suhariningsih^3 ; Yasin, Moh^3

Doctoral Study Program of Mathematics and Science, Faculty of Science and Technology, Universitas Airlangga, Surabaya

60115, Indonesia^1

Department of Natural Science, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Surabaya

60231, Indonesia^2

Department of Physics, Faculty of Science and Technology, Universitas Airlangga, Surabaya

60115, Indonesia^3

关键词: Cholesterol detection;    Concentration detections;    He-Ne laser beams;    Intensity modulations;    Intensity profiles;    Optical fiber bundle;    Output voltages;    Receiving fibers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/853/1/012008/pdf
DOI  :  10.1088/1742-6596/853/1/012008

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The aim of the research is to detect the concentration of cholesterol by using the principle that a laser beam propagation is guided by optical fiber bundle in term of intensity profile through solution with vary concentrations of cholesterol from 0 to 300 ppm. The mechanism of cholesterol concentration detection is the propagation of He-Ne laser beam with wavelength of 632.5 nm through a fiber optic bundle and a solution of cholesterol, then is reflected by a flat mirror and enters receiving fiber. This signal is captured by a silicon detector (SL-818, Newport) in the form of output voltage. The result showed that the output voltage decrease linearly with the increase of concentration of cholesterol with a sensitivity of 0.0004 mV/ppm and the linearity more than 97%.