阅读说明：本技术 一种在线式近红外固体颗粒检测仪 (Online near-infrared solid particle detector ) 是由 汪东升 赵松光 薛莉沁 喻肖文 于 2020-05-22 设计创作，主要内容包括：本发明涉及一种在线式近红外固体颗粒检测仪,包括检测仪壳体,其特征在于,所述检测仪壳体外部设置有接口以及出光口；所述检测仪壳体的内部设置有ARM控制板、电机、标定轮、光源驱动板、多个光源、光纤探测器、光纤、光谱仪、TEC恒温控制系统、IR测温仪以及开关；本发明检测效果佳,可用于在线检测固体颗粒的各种理化指标,如面粉、油菜籽、黄豆等的水分、蛋白、油脂含量等。(The invention relates to an online near-infrared solid particle detector which comprises a detector shell and is characterized in that an interface and a light outlet are arranged outside the detector shell; an ARM control board, a motor, a calibration wheel, a light source driving board, a plurality of light sources, an optical fiber detector, an optical fiber, a spectrometer, a TEC constant temperature control system, an IR thermometer and a switch are arranged in the detector shell; the invention has good detection effect and can be used for detecting various physical and chemical indexes of solid particles on line, such as the moisture, protein, grease content and the like of flour, rapeseeds, soybeans and the like.)

1. An online near-infrared solid particle detector comprises a detector shell, and is characterized in that an interface and a light outlet are arranged outside the detector shell; an ARM control board, a motor, a calibration wheel, a light source driving board, a plurality of light sources, an optical fiber detector, an optical fiber, a spectrometer, a TEC constant temperature control system, an IR thermometer and a switch are arranged in the detector shell;

the ARM control board is connected with an interface on the detector shell, and the ARM control board is connected with a switch, the TEC constant temperature control system, the spectrometer, the light source driving board and the motor through cables to realize signal transmission;

the TEC constant temperature control system and the spectrometer realize information transmission through a cable;

the spectrometer is connected with the optical fiber detector through an optical fiber;

the light source driving board is connected with a plurality of light sources through cables, and the plurality of light sources are arranged right above the calibration wheel;

the optical fiber detector is positioned at one side above the calibration wheel;

the calibration wheel is positioned above the light outlet on the detector shell, is rotatably arranged in the detector shell, is connected with the motor and drives the calibration wheel to rotate through the motor;

the IR thermometer is located at one side of the calibration wheel.

2. The on-line near-infrared solid particle detector as claimed in claim 1, wherein the calibration wheel is provided with a light outlet, a standard plate and a reference plate.

3. The in-line near-infrared solid particle detector as claimed in claim 1, wherein the optical fiber detector is disposed in an inclined manner.

Technical Field

The invention belongs to the technical field of near-infrared detection, and particularly relates to an online near-infrared solid particle detector.

Background

The rapid detection of the information of a plurality of components of solid particles such as grains, oil crop seeds, feed particles and the like is of great significance. For example, obtaining content information of part of components of crops such as grains is of great significance in stages of harvesting, purchasing, storage and transportation, processing and the like of the grains, for example, a purchasing manufacturer can quote prices according to the quality according to the content information of the protein of the wheat, and a flour producer can adjust production according to the content information of the protein of the wheat.

The near infrared spectrum analysis technology utilizes near infrared light to detect material components, and the technology is used for detecting solid particles such as grains and the like without reagents, does not damage samples, and has high speed and high precision. The technology is widely applied to developed countries such as the United states from the last 60 th and 70 th years, and a plurality of grain processing factories, feed processing factories, pharmaceutical factories and the like have near infrared spectrum analyzers, and the technology is also used in China in recent decades.

At present, the detection equipment which can be used for detecting solid particles of flour, rapeseeds, soybeans and other grain crops, is quick, convenient, efficient to use and accurate in detection is lacked.

Disclosure of Invention

Aiming at the problems, the invention discloses an online near-infrared solid particle detector which is good in detection effect and using effect.

The specific technical scheme is as follows:

an online near-infrared solid particle detector comprises a detector shell, and is characterized in that an interface and a light outlet are arranged outside the detector shell; an ARM control board, a motor, a calibration wheel, a light source driving board, a plurality of light sources, an optical fiber detector, an optical fiber, a spectrometer, a TEC constant temperature control system, an IR thermometer and a switch are arranged in the detector shell;

the ARM control board is connected with an interface on the detector shell, and the ARM control board is connected with a switch, the TEC constant temperature control system, the spectrometer, the light source driving board and the motor through cables to realize signal transmission;

the TEC constant temperature control system and the spectrometer realize information transmission through a cable;

the spectrometer is connected with the optical fiber detector through an optical fiber;

the light source driving board is connected with a plurality of light sources through cables, and the plurality of light sources are arranged right above the calibration wheel;

the optical fiber detector is positioned at one side above the calibration wheel;

the calibration wheel is positioned above the light outlet on the detector shell, is rotatably arranged in the detector shell, is connected with the motor and drives the calibration wheel to rotate through the motor;

the IR thermometer is located at one side of the calibration wheel.

Further, a light outlet, a standard sheet and a reference plate are arranged on the calibration wheel.

Further, the optical fiber detector is arranged in an inclined mode.

Further, the spectral wavelength range of the spectrometer is 900-1700 nm.

The beneficial effects and the technical principle of the invention are as follows:

when the spectrometer is used, a light source directly irradiates a sample through a light outlet, part of diffuse reflection light enters the optical fiber and is transmitted to the spectrometer module, the optical fiber is received by the detector after filtering and light splitting, received electric signals are output through the ARM control board, and finally a spectrum is acquired after software processing.

According to the invention, an IR thermometer, namely an infrared temperature measurement module, is adopted to detect the ambient temperature, and the TEC constant temperature module ensures that the spectrometer is in a constant temperature state, so that the influence on the spectrogram due to the change of the ambient temperature is effectively reduced. The motor drives the calibration wheel to rotate, and the standard sheet, the reference plate and the light outlet are respectively in working states according to different working stages of the system.

The infrared distance measuring instrument is arranged on the side surface of the device, the distance from a detector window to a sample is monitored in real time, the distance is fed back to the control end, and the distance is adjusted to a specified preset height through the stepping motor.

The invention has wide application range and good detection effect, and can be used for detecting various physical and chemical indexes of solid particles on line, such as moisture, protein, grease content and the like of flour, rapeseeds, soybeans and the like.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the calibration wheel of the present invention.

Detailed Description

In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixing and the arrangement of the fixing and the connection are all general connection modes in the mechanical field, and the fixing and the connection can be performed by welding, bolt and nut connection and screw connection.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in the figure, the online near-infrared solid particle detector comprises a detector shell, and is characterized in that an interface and a light outlet are arranged outside the detector shell; an ARM control board, a motor, a calibration wheel, a light source driving board, a plurality of light sources, an optical fiber detector, an optical fiber, a spectrometer, a TEC constant temperature control system, an IR thermometer and a switch are arranged in the detector shell;

the ARM control board is connected with an interface on the detector shell, and the ARM control board is connected with a switch, the TEC constant temperature control system, the spectrometer, the light source driving board and the motor through cables to realize signal transmission;

the TEC constant temperature control system and the spectrometer realize information transmission through a cable;

the spectrometer is connected with the optical fiber detector through an optical fiber;

the light source driving board is connected with a plurality of light sources through cables, and the plurality of light sources are arranged right above the calibration wheel;

the optical fiber detector is positioned at one side above the calibration wheel;

the calibration wheel is positioned above the light outlet on the detector shell, is rotatably arranged in the detector shell, is connected with the motor and drives the calibration wheel to rotate through the motor;

the IR thermometer is located at one side of the calibration wheel.

Further, a light outlet, a standard sheet and a reference plate are arranged on the calibration wheel.

Further, the optical fiber detector is arranged in an inclined mode.

Further, the spectral wavelength range of the spectrometer is 900-1700 nm.

The beneficial effects and the technical principle of the invention are as follows:

when the spectrometer is used, a light source directly irradiates a sample through a light outlet, part of diffuse reflection light enters the optical fiber and is transmitted to the spectrometer module, the optical fiber is received by the detector after filtering and light splitting, received electric signals are output through the ARM control board, and finally a spectrum is acquired after software processing.

According to the invention, an IR thermometer, namely an infrared temperature measurement module, is adopted to detect the ambient temperature, and the TEC constant temperature module ensures that the spectrometer is in a constant temperature state, so that the influence on the spectrogram due to the change of the ambient temperature is effectively reduced. The motor drives the calibration wheel to rotate, and the standard sheet, the reference plate and the light outlet are respectively in working states according to different working stages of the system.

The infrared distance measuring instrument is arranged on the side surface of the device, the distance from a detector window to a sample is monitored in real time, the distance is fed back to the control end, and the distance is adjusted to a specified preset height through the stepping motor.

The invention has wide application range and good detection effect, and can be used for detecting various physical and chemical indexes of solid particles on line, such as moisture, protein, grease content and the like of flour, rapeseeds, soybeans and the like.

Description of the reference numerals

The device comprises a detector shell 1, an interface 2, a light outlet 3, an ARM control board 4, a motor 5, a calibration wheel 6, a standard sheet 61, a reference board 62, a light outlet 63, a light source drive board 7, a light source 8, an optical fiber detector 9, an optical fiber 10, a spectrometer 11, a TEC constant temperature control system 12, an IR thermometer 13 and a switch 14.