Easy-to-adjust scanning infrared spectrometer used for food detection

Abstract

The invention relates to an easy-to-adjust scanning infrared spectrometer used for food detection. The scanning infrared spectrometer comprises a shell, an operation panel, a handle, a sealing mechanism, a sample box and a detection mechanism, wherein the sealing mechanism comprises a sealing cover, a fixing ring, an outer ring and a plurality of fastening components; each fastening component comprises a fastening unit, a first inserting hole, a second inserting hole and an inserting rod; the detection mechanism comprises a lifting plate, a first motor, a rotary table, a central rod, two lifting components and two detection components; and each detection component comprises a light source, a vertical rod, a monochromator and a detector. The easy-to-adjust scanning infrared spectrometer used for food detection can be used for fixing and sealing the sample box through the sealing mechanism, and a test solution is prevented from splashing out and is shielded, so that the test solution isprevented from being influenced by an external environment during detection. Furthermore, the test solution in the sample box can be scanned and measured through the detection mechanism, the absorbedamount of infrared light is adjusted by changing the amount of the solution at different height positions, accurate measurement is carried out, and the practicability of the equipment is improved.

Description

Technical field [0001] The invention relates to the field of food detection equipment, and in particular to an easy-to-adjust scanning infrared spectrometer for food detection. Background technique [0002] Infrared spectrometer is an instrument that uses the absorption characteristics of different wavelengths of infrared radiation to analyze molecular structure and chemical composition. Infrared spectrometer usually consists of light source, monochromator, detector and computer processing information system. Infrared spectroscopy can not only identify compounds but also accurately determine the content of compounds, and the operation is relatively convenient, so it is often used to detect certain specific compounds in food. [0003] However, in the existing infrared spectrometer, the positions of the light source, monochromator, detector and sample chamber are relatively fixed and single, so that the propagation path of infrared rays is fixed and single, and the equipment can onl...

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Problems solved by technology

[0003] However, in the existing infrared spectrometers, the positions of the light source, monochromator, detector and sample chamber are relatively fixed and single, so that the propagation path of infrared rays is fixed and single, and the equipment can only detect the sample solution at a fixed position, which makes the equipment detect errors. Larger, and because the equipment uses the absorption characteristics of substances to infrared radiation of different wavelengths to detect, when the content of the substance to be tested is too high, it is easy to cause too much infrared absorption, which is not conducive to the detector receiving optical signals, while the substance to be tested When the content is small, the infrared absorption is too small, and the difference of the light signal received by the detector is small, which is not conducive to the accurate measurement of the food solution. Not only that, but the existing infrared spectrometer is easily interfered by the light of the external environment when performing detection , which further leads to an increase in the measurement error and reduces the practicability of the existing infrared spectrometer

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