A near-infrared spectrum detection device and control method

Abstract

A near-infrared spectrum detection device and control method, which includes a reference sample delivery mechanism, a sample turning mechanism and an illumination parameter adjustment unit, the height of the first support for placing samples in the reference sample delivery mechanism is adjustable, and the illumination parameter The adjustment unit includes a plurality of actuators, and an angle adjustment mechanism is set under each actuator: the actuator includes an adjustment seat, a bracket, an L-shaped board seat, and a light source assembly, and the hinge center connection line between the L-shaped board seat and the bracket, and the light source assembly The center line of beam irradiation and the intersection point of the connecting line between the adjusting seat and the hinge center of the bracket is used as the motion center of the actuator, and the motion centers of each actuator intersect at the same point; the bracket and the L-shaped plate seat form a double parallel four-bar structure; the light source component It includes a telescopic rod mechanism with a light source at the end; the first motor of the angle adjustment mechanism is sequentially connected to drive a plurality of 90-degree steering mechanisms corresponding to the actuator, and each 90-degree steering mechanism is respectively provided with a push rod connected to the bracket and pushing it to rotate .

Description

technical field [0001] The invention relates to a non-destructive detection device for agricultural products, in particular to a near-infrared spectrum detection device and a control method. Background technique [0002] Today, near-infrared spectroscopy detection technology is developing rapidly in my country, and its application has been expanded to various fields, typical applications include food and medicine. Light sources are crucial for NIR spectroscopy non-destructive testing. However, at present, a single diffuse transmission or diffuse reflectance spectrum acquisition method is generally used on a set of spectral detection devices, and the light source irradiation angle and light source irradiation distance of the multi-light source device cannot be automatically adjusted around the center of the sample. The existing spectral detection sampling methods generally use manual sampling, and most of them stay at the stage of static detection of a single area, which can...

AI Technical Summary

Problems solved by technology

However, this solution still has the following deficiencies: (1) It can only realize near-infrared spectrum transmission detection, but cannot realize near-infrared spectrum reflection detection; (2) The irradiation angle and distance of the light source need to be adjusted manually, and the center It cannot be adjusted with the self-adaptive coincidence of the center of samples of different sizes; (3) The flipping of samples needs to be adjusted manually

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