Simple sugar concentration sensor and method

A technology of sugar concentration and concentration, which is applied in the field of monitoring monosaccharide (monosaccharide) content in liquid, can solve the problems of low operating cost, achieve low operating cost, continuous data, and reduce the risk of infection

Active Publication Date: 2015-07-01
K SCI GP
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  • Simple sugar concentration sensor and method
  • Simple sugar concentration sensor and method
  • Simple sugar concentration sensor and method

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Embodiment 20

[0013] figure 1 An embodiment 20 of the present invention is shown comprising: a light energy source 22, a first polarizer 24, a second polarizer spaced a distance from the first polarizer 24 and having a rotation Θ relative to the first polarizer 24 26 , a first light energy detector 28 , a second light energy detector 30 juxtaposed with the first detector 28 , and a circuit 46 . Each of the first and second light detectors 28 , 30 is oriented to receive light energy passing through the space 32 . In a preferred embodiment, the detectors 28, 30 are silicon detectors. As used herein, "co-located" means positioned adjacent to each other such that light from a common source will enter each detector with approximately equal intensity, all other things being equal. Also, while the embodiments disclose the use of silicon detectors, other types of detectors (such as photoresistors) could be used.

[0014] When energized, energy source 22 produces initial light energy 34 having em...

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Abstract

A glucose sensor comprising an optical energy source having an emitter with an emission pattern; a first polarizer intersecting the emission pattern; a second polarizer spaced a distance from the first polarizer and intersecting the emission pattern, the second polarizer rotated relative to the first polarizer by a first rotational amount Θ; a first optical detector intersecting the emission pattern; a second optical detector positioned proximal to the second polarizer, the first polarizer and the second polarizer being positioned between the optical energy source and the second optical detector, the second optical detector intersecting the emission pattern; a compensating circuit coupled to the second optical detector; and a subtractor circuit coupled to the compensating circuit and the first optical detector.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application Serial No. 61 / 714,731, filed October 16, 2012, and US Non-Provisional Application Serial No. 13 / 950,054, filed July 24, 2013, both of which are incorporated herein by reference. technical field [0003] The present invention relates to monitoring the content of simple sugar (or monosaccharide) in a fluid. More specifically, the present invention uses light energy sources in conjunction with polarizers to determine changes in sugar levels (eg, glucose) in a subject fluid (such as blood) relative to a baseline concentration. Background technique [0004] Monosaccharides change the polarization of light energy passing through them according to the equation Θ = α x L x C, where L is the travel length of energy through the liquid in which the sugar is concentrated, C is the sugar concentration, and α is the sugar-dependent type, The wavelength of energy and ...

Claims

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Application Information

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IPC IPC(8): G01N33/48
CPCA61B5/14532A61B5/1455G01N21/21A61B5/14558A61B5/6815A61B5/7225G01N2201/0683G01N2201/062A61B2560/0443A61B2562/0238
Inventor V.科曼
Owner K SCI GP
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