阅读说明：本技术 一种单光源三视角的新型x射线异物检测系统 (Novel X-ray foreign matter detection system with single light source and three viewing angles ) 是由 陈静芳 幸波 施利辉 刘志博 刘茜 于 2021-08-27 设计创作，主要内容包括：本发明涉及一种单光源三视角的新型X射线异物检测系统,包括X射线光源发生器装置、准直分光装置和多个X射线接收装置,X射线接收装置的数量和准直分光装置的出射光线的数量一致；X射线光源发生器装置的输出端连接准直分光装置的输入端,准直分光装置的多个输出端出射的X射线从不同角度穿过待测物料后分别由各X射线接收装置接收。与现有技术相比,本发明通过采用准直分光装置得到三束不同角度的X射线,可以解决单视角对罐装产品检测效果差,盲区较多、成像质量差的问题。(The invention relates to a novel X-ray foreign matter detection system with a single light source and three visual angles, which comprises an X-ray light source generator device, a collimation and light splitting device and a plurality of X-ray receiving devices, wherein the number of the X-ray receiving devices is consistent with the number of emergent rays of the collimation and light splitting device; the output end of the X-ray light source generator device is connected with the input end of the collimation light splitting device, and X-rays emitted from a plurality of output ends of the collimation light splitting device penetrate through a material to be detected from different angles and are received by each X-ray receiving device respectively. Compared with the prior art, the invention can solve the problems of poor detection effect, more blind areas and poor imaging quality of canned products at a single visual angle by adopting the collimation and light splitting device to obtain three beams of X-rays with different angles.)

1. A novel X-ray foreign matter detection system with a single light source and three viewing angles is characterized by comprising an X-ray light source generator device (1), a collimation light splitting device (2) and a plurality of X-ray receiving devices, wherein the number of the X-ray receiving devices is consistent with the number of emergent rays of the collimation light splitting device (2);

the output end of the X-ray light source generator device (1) is connected with the input end of the collimation light splitting device (2), and X-rays emitted from a plurality of output ends of the collimation light splitting device (2) penetrate through a material (401) to be detected from different angles and are received by each X-ray receiving device respectively.

2. A single light source three view X-ray foreign object detection system as claimed in claim 1, wherein there are at least three outputs of said light source generator means (1).

3. A single light source three view X-ray foreign object detection system as claimed in claim 2, wherein there are three outputs of said light source generator means (1).

4. The system for detecting foreign bodies by X-rays with a single light source and three viewing angles as claimed in claim 2, wherein the middle X-ray emitted from the collimating and light splitting device (2) is collinear with the material (104) to be detected.

5. The system for detecting foreign bodies in X-rays with a single light source and three viewing angles as claimed in claim 3, wherein the X-rays emitted from the collimating and light splitting device (2) are arranged in equal angles.

6. The system for detecting foreign bodies in X-rays with a single light source and three viewing angles as claimed in claim 4, wherein the included angle between the X-rays emitted from the collimating and splitting device (2) is 20-40 degrees.

7. The system for detecting foreign bodies in X-rays with a single light source and three viewing angles as claimed in claim 5, wherein the included angle between the X-rays emitted from the collimating and splitting device (2) is 30 degrees.

8. The system for detecting foreign bodies with single light source and three viewing angles as claimed in claim 1, wherein said X-ray light source generator means (1) is an X-ray source.

9. The system for detecting foreign bodies in X-rays with a single light source and three viewing angles as claimed in claim 1, wherein said collimating and splitting means (2) comprises a plurality of filters, and the number of said filters is the same as the number of said X-ray receiving means.

10. The system for detecting foreign bodies with single light source and three viewing angles as claimed in claim 1, wherein the bottom of the X-ray light source generator device (1) is flush with the bottom of the material (401) to be detected.

Technical Field

The invention relates to the field of food X-ray machine systems, in particular to a novel X-ray foreign matter detection system with a single light source and three visual angles.

Background

The X-ray foreign matter detector is a device which automatically displays and alarms high-density foreign matters in a substance through a gray level image by utilizing an X-ray imaging principle according to different densities of articles.

In order to improve the detection effect and reliability, the application of the single-light-source X-ray is wide at present, but the existing single-light-source X-ray foreign matter detection system has defects when facing canned products, particularly glass materials with thick can walls, the distance between a light source and a detected object is long, the imaging quality is poor, more blind areas exist, and the imaging effect of square canned products is poor.

Disclosure of Invention

The invention aims to provide a novel X-ray foreign matter detection system with a single light source and three visual angles, and the system can solve the problems of poor detection effect, more blind areas and poor imaging quality of canned products at a single visual angle by adopting a collimation and light splitting device to obtain three beams of X-rays with different angles.

The purpose of the invention can be realized by the following technical scheme:

a single-light-source three-view-angle novel X-ray foreign matter detection system comprises an X-ray light source generator device, a collimation light splitting device and a plurality of X-ray receiving devices, wherein the number of the X-ray receiving devices is consistent with the number of emergent rays of the collimation light splitting device;

the output end of the X-ray light source generator device is connected with the input end of the collimation light splitting device, and X-rays emitted from a plurality of output ends of the collimation light splitting device penetrate through a material to be detected from different angles and are received by each X-ray receiving device respectively.

The output ends of the light source generator devices are at least three.

The output ends of the light source generator devices are three in number.

The middle X-ray emitted by the collimation and light splitting device is collinear with the material to be detected.

And the X rays emitted by the collimation and light splitting device are arranged at equal angles.

The included angle between the X rays emitted by the collimation and light splitting device is 20-40 degrees.

The included angle between the X rays emitted by the collimation and light splitting device is 30 degrees.

The X-ray light source generator device is an X-ray source.

The collimation and light splitting device comprises a plurality of optical filters, and the number of the optical filters is consistent with that of the X-ray receiving devices.

The bottom of the X-ray light source generator device is flush with the bottom of the material to be detected.

Compared with the prior art, the invention has the following beneficial effects:

1. three beams of X rays with different angles are obtained by adopting the collimation and light splitting device, so that the problems of poor detection effect, more blind areas and poor imaging quality of canned products at a single visual angle can be solved.

2. The X-ray in the middle of the collimation light splitting device is collinear with the material to be measured, the photon loss is less, the exposure quality of the formed image is improved, and the problem of low imaging quality of a multi-view light source is solved.

3. The X-rays emitted by the collimation and light splitting device are arranged at equal angles, so that the stability of the detection result is improved.

Drawings

FIG. 1 is a schematic diagram of the principle structure of the present invention:

FIG. 2 is a schematic view of the ray angle of the light-splitting device according to the present invention;

FIG. 3 is a schematic diagram of the position layout of the X-ray light source generator device and the material 401 to be measured;

wherein: 101. the X-ray detector comprises an X-ray light source generator device, 201, a collimation and light splitting device, 301, a first beam of X-ray, 302, a second beam of X-ray, 303, a third beam of X-ray, 401, a material to be detected, 501, an X-ray receiver device, 502, an X-ray receiver device, 503 and an X-ray receiver device.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

By utilizing the transmission principle of X-rays, in the process that high-speed electrons impact a metal target, under the action of a strong electric field of atomic nuclei, the magnitude and the direction of the speed of the X-rays are changed rapidly, and a part of kinetic energy is converted into energy of X-photons to be radiated out to form an X-spectrum. The X-ray has short wavelength and large energy, only a small part of spectrum is absorbed by the substance when the substance is irradiated, and most of the spectrum is transmitted by atomic gaps, thus showing stronger penetrating power. The ability of X-rays to penetrate matter is related to the energy contained by the photons, with shorter wavelengths and greater photon energies providing greater penetration. The X-ray permeability is also related to the density of the substance, and different substances, such as high-density stones, metals and other foreign matters mixed in food, can be detected by utilizing the difference of the density.

X-ray spectroscopy is essentially an analytical method for determining the molecular structure of a substance and identifying the substance based on information such as relative vibration and molecular rotation between atoms within a molecule.

Aiming at an X-ray foreign matter detection system with a single light source, the application provides a novel X-ray foreign matter detection system with a single light source and three visual angles, as shown in figures 1 and 2, the system comprises an X-ray light source generator device 1, a collimation light splitting device 2 and a plurality of X-ray receiving devices, wherein the number of the X-ray receiving devices is consistent with the number of emergent rays of the collimation light splitting device 2;

the output end of the X-ray light source generator device 1 is connected with the input end of the collimation light splitting device 2, and X-rays emitted from a plurality of output ends of the collimation light splitting device 2 penetrate through the material 401 to be detected from different angles and are received by each X-ray receiving device respectively. The output ends of the light source generator devices 1 are at least three, and the output ends of the light source generator devices 1 are also three. The three beams of X-rays output by the collimating and splitting device 2 are a first beam of X-rays 301, a second beam of X-rays 302 and a third beam of X-rays 303. The first beam of X-rays 301, the second beam of X-rays 302, and the third beam of X-rays 303 are perpendicular to the X-ray receiver device 501, the X-ray receiver device 502, and the X-ray receiver device 503, respectively.

Three beams of X rays with different angles are obtained by adopting the collimation light splitting device, 3 product gray level images with different angles are obtained, the consistency is realized in the time domain, the point-to-point contrast analysis can be carried out on the subsequent image identification, and the problems of poor detection effect, more blind areas and poor imaging quality of canned products at a single visual angle can be solved.

Specifically, by utilizing the X-ray spectrum and the light splitting principle, after the X-ray light source generator device 1 penetrates through the collimation light splitting device 2, three beams of X-rays irradiate an object at the same time, the X-ray receiving device images the X-rays penetrating through the substance, and the formed image realizes three gray level images with different angles at the same time.

In some embodiments, the second beam of X-rays 302 emitted from the collimating and light-splitting device 2 is collinear with the material 104 to be measured, and the vertical distances from the projection lines of the first beam of X-rays 301 and the third beam of X-rays 303 to the material test point of the material 104 to be measured are equal.

The X-rays emitted by the collimation and light splitting device 2 are arranged at equal angles, so that the stability of the detection result is improved. In some embodiments, the included angle between the X-rays emitted from the collimating and splitting device 2 is 20-40 degrees, and in a preferred embodiment, the included angle between the X-rays emitted from the collimating and splitting device 2 is 30 degrees.

The X-ray light source generator device 1 is an X-ray source. In some embodiments, the collimating and splitting device 2 comprises a plurality of filters, the number of the filters is the same as the number of the X-ray receiving devices, specifically, three identical filters.

In some embodiments, the bottom of the X-ray light source generator device 1 is flush with the bottom of the material 401 to be measured.