Light absorption test optical pool for photometer
A light absorption and photometer technology, used in color/spectral property measurement, measurement device, material analysis by optical means, etc., can solve the problem of inaccurate reaction sample concentration, inaccurate data, and inaccurate control accuracy of the absorption layer. and other problems, to achieve good air tightness, ensure versatility, and reliable performance.
Active Publication Date: 2017-03-08
山东前沿医疗器械股份有限公司
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Problems solved by technology
In the prior art process, the thickness of the absorbing layer cannot accurately control the accuracy, resulting in inaccurate data during the sample measurement process, and cannot correctly reflect the concentration of the sample
Method used
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Embodiment Construction
[0021] Figure 1~3 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~3 The present invention will be further described.
[0022] Such as Figure 1~2 As shown, a kind of light absorption test optical cell used for photometer comprises shell 3, and shell 3 is provided with a cylindrical inner cavity with the same thickness up and down, and the upper end of the cylindrical inner cavity passes through the top of shell 3 and is connected with The external communication forms the light entrance hole 1 at the top of the shell 3; the lower end of the cylindrical inner cavity passes through the bottom of the shell 3 and communicates with the outside to form the light exit hole 8 at the bottom of the shell 3. The diameters of the light entrance hole 1 and the light exit hole 8 It is smaller than the diameter of the inner cylindrical cavity of the shell 3. An air inlet pipe 2 and an air outlet pipe 7 protrude from the side of the shell 3,...
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The invention relates to a light absorption test optical pool for a photometer, and belongs to the technical field of a photometric measurement instrument. The light absorption test optical pool is characterized by comprising a case (3), wherein an illumination passage of a test light source is arranged in the middle part of the case (3); a sample gas test assembly is arranged in the illumination passage; a sample gas circulation passage through which the test light source passes is arranged in the sample gas test assembly; the thickness of the sample gas circulation passage is uniform, and the sample gas circulation passage is arranged in a way of being vertical to the illumination passage of the test light source; a gas inlet end and a gas outlet end which are simultaneously communicated with the sample gas circulation passage are formed in the case (3). In the light absorption test optical pool for the photometer, through the arrangement of the sample gas test assembly, the sample gas circulation passage is formed through the adjustable gas circulation units with the uniform thickness in the sample gas test assembly; the precise control on the sample gas thickness is completed, so that the precise measurement on the sample gas concentration is realized.
Description
technical field [0001] The utility model relates to a light absorbing test optical pool used for a photometer, which belongs to the technical field of photometric instruments. Background technique [0002] Spectrophotometry is a quantitative analysis of the substance by measuring the absorbance of the measured substance at a specific wavelength or within a certain wavelength range. Commonly used test light sources include ultraviolet light, visible light, infrared light, etc. The photometer generally adopts a light source that can generate multiple wavelengths, and generates a light source with a specific wavelength through a series of spectroscopic devices. After the light source passes through the absorption layer of the sample to be tested, part of the light source is absorbed, and the light absorption value of the sample can be calculated to measure the sample. concentration. The thickness of the absorbing layer is inversely proportional to the concentration of the sam...
Claims
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IPC IPC(8): G01N21/31G01N21/01
CPCG01N21/01G01N21/31
Inventor 姚念民曲鹏
Owner 山东前沿医疗器械股份有限公司