Apparatus and method for detecting specific substance concentration in solution by optical mode
A material concentration and photoelectric detection technology, which is applied in measuring devices, color/spectral characteristic measurement, scientific instruments, etc., can solve problems affecting the diagnosis and treatment of diabetic patients, local infection, high cost, etc., to avoid damage and potential infection risks, Avoid detection errors and increase the optical path
Inactive Publication Date: 2010-04-21
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology
These methods are not only time-consuming, costly, and cause the risk of local infection, but also the trouble and pain of taking blood samples make it impossible for most diabetics to monitor their blood sugar levels multiple times a day according to the theoretical requirements, which affects the timely and rapid monitoring of diabetic patients. diagnosis and treatment
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.
[0036] Such as figure 1 Shown is the structure of an embodiment in which the device for optically detecting the concentration of a specific substance in a solution of the present invention is applied to detecting the concentration of a solution in the aqueous humor of the eyeball.
[0037] The absorbed light emitted by the absorbing light source 100 and the reference light emitted by the reference light source 200 are respectively converged by the first light converging device 301 and the second light converging device 302 , and converged into the same optical path by the first dichroic mirror 401 .
[0038] Wherein, the absorption light refers to the light of a specific wavelength that is absorbed by the substance of the concentration to be measured but is not absorbed by other substances in the solution to be measured or is less absorbed; S...
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Abstract
The invention discloses an optical-mode device for detecting the concentration of specific matter in a solution, and a detection method thereof. The optical-mode device for detecting the concentrationof specific matter in the solution comprises an absorption light source (100) emitting absorption light, a reference light source (200) emitting reference light and a photoelectric detection device (800), as well as an objective lens group (600) and an eyepiece lens group (700), wherein the objective lens group (600) is used for focusing the reference light and the absorption light on a soundingfocus on the surface of an inner wall of a container; the eyepiece lens group (700) is arranged on a light path where the reference light and the absorption light enter the photoelectric detection device (800), and is used for focusing the reference light and the absorption light reflected by the sounding focus on a detection focus; and the photoelectric detection device (800) receives and converts the reference light and the absorption light which pass the detection focus into corresponding electrical signals.
Description
technical field [0001] The invention relates to a device and a detection method for optically detecting the concentration of a specific substance in a solution. Background technique [0002] How to non-destructively and accurately measure the concentration of body fluids in living organisms is a contradiction that is difficult to resolve. The following only uses the detection of blood sugar concentration as an example to illustrate. [0003] At present, there are 246 million diabetic patients in the world, and it is still increasing rapidly every year. In 2007, the medical expenses of the 24 million diabetic patients in the United States were as high as 218 billion US dollars. In view of the huge number of diabetics in the world, non-destructive blood glucose detectors have a large market space, attracting many large companies and research institutions to invest a lot of energy in the study of non-destructive detection of human blood glucose. In the past 30 years, researche...
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IPC IPC(8): G01N21/25G01N33/487
Inventor 王贵良何永红
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV