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Method for measuring glucose concentration on basis of long period fiber grating temperature and glucose concentration two-parameter sensor

A technology of glucose concentration and optical fiber grating, which is applied in the field of biomedical detection, can solve the problems of error in experimental results, high economic cost, and inability to produce products, and achieve the effects of low production cost, high measurement accuracy, and simple structure

Active Publication Date: 2018-06-01
BEIJING INFORMATION SCI & TECH UNIV
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Problems solved by technology

[0004] However, the above detection methods only measure a single parameter of concentration or refractive index, ignoring the influence of temperature on fiber gratings. Both FBG and long-period gratings are very sensitive to temperature. If the influence of temperature is not considered, then There will be a large error in the experimental results
[0005] At the same time, the above methods need polishing, coating and modification, the process is complicated and difficult, the economic cost is high, it is difficult to promote, and it cannot be commercialized

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  • Method for measuring glucose concentration on basis of long period fiber grating temperature and glucose concentration two-parameter sensor
  • Method for measuring glucose concentration on basis of long period fiber grating temperature and glucose concentration two-parameter sensor
  • Method for measuring glucose concentration on basis of long period fiber grating temperature and glucose concentration two-parameter sensor

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Embodiment Construction

[0035] The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

[0036] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0037] see Figure 1-Figure 3 , the present invention provides a method for measuring glucose concentration based on long-period fiber grating temperature and glucose concentration dual-parameter sensing, comprising the steps of:

[0038] Step 1: using the femtosecond laser of the femtose...

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Abstract

The invention provides a long period fiber grating temperature and glucose concentration two-parameter sensor. According to the characteristic that a long period fiber grating is extremely sensitive for external environment refractive index, the femtosecond write-through long period fiber grating is adopted, the sensor is of a grating structure with different sensitivity for glucose concentrationand a cavity structure by strictly controlling the grating parameter of the sensor, when a broadband light source enters into the long period fiber grating, two obvious attenuation peaks exist in a transmission spectrum, when the concentration or temperature changes, two characteristic wavelengths are of different offsets, and the relationships between the resonant wavelength of the long period fiber grating and the temperature as well as between the resonant wavelength of the cavity structure and the concentration of a solution to be measured are calculated respectively, so that an equation set is formed, namely, the glucose concentration and temperature can be measured simultaneously.

Description

technical field [0001] The invention relates to biomedical detection technology, in particular to a method for measuring glucose concentration based on long-period optical fiber grating temperature and glucose concentration dual-parameter sensing. Background technique [0002] In daily life, obtaining the content information of glucose is of great significance to the judgment of the health level of the human body and the prevention of diseases. Blood sugar is the main substance that provides energy to the human body. The detection of blood sugar concentration in the human body is very important in the clinical detection of biomedicine, because both high and low blood sugar reflect problems in human metabolism. Glucose is an indispensable nutrient for the metabolism of living organisms. The heat released by its oxidation reaction is an important source of energy for human life activities. It can be used directly in the food and pharmaceutical industries. It can be used as a...

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Application Information

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IPC IPC(8): G01N21/45G01N21/25G01K11/32G01K11/3206
CPCG01K11/32G01N21/25G01N21/45G01N2021/458
Inventor 祝连庆刘小龙娄小平董明利陈少华张雯何巍
Owner BEIJING INFORMATION SCI & TECH UNIV
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