A new X-ray foreign body detection system with dual light sources and four viewing angles

Abstract

The present invention relates to a novel X-ray foreign body detection system with dual light sources and four viewing angles, comprising a transmission device and a first detection module and a second detection module symmetrically arranged, wherein the first detection module comprises a first X-ray light source generator device, a first collimating spectrometer device, a first viewing angle X-ray receiver device and a second viewing angle X-ray receiver device, and X-rays emitted from two output ends of the first collimating spectrometer device are respectively received by the first viewing angle X-ray receiver device and the second viewing angle X-ray receiver device; compared with the prior art, the present invention can solve the problem of poor detection effect of canned products with a single viewing angle and more blind spots by arranging X-ray light source generator devices on both sides and performing spectrometry based on the collimating spectrometer device, while being different from the traditional one-plus-one combination mode of a multi-light source system, and can obtain images on both sides, thereby improving consistency while improving imaging quality and imaging information.

Description

Technical Field

[0001] The invention relates to the field of X-ray foreign body detection, and in particular to a novel X-ray foreign body detection system with dual light sources and four viewing angles. Background Art

[0002] The X-ray foreign body detector is a device that uses the principle of X-ray imaging to automatically display high-density foreign bodies in materials through grayscale images and alarm according to the different densities of the objects.

[0003] In the prior art, food X-ray foreign body detection systems for canned products mostly use a single light source. In the traditional physical structure design of the light source, the single light source is far away from the object to be detected, and the single viewing angle causes poor imaging quality and many blind spots. In addition, the viewing angle of the single light source is poor, and it is impossible to obtain images from two opposite directions. Simply increasing the number of light sources to expand the viewing angle will cause the equipment to occupy more space. As the number of light sources increases, and when the number of light sources exceeds three, it will bring significant consistency problems, so the reliability of the equipment will decrease. Summary of the invention

[0004] The purpose of the present invention is to provide a new X-ray foreign body detection system with dual light sources and four viewing angles. By arranging X-ray light source generator devices on both sides and performing light splitting based on a collimating light splitting device, it can solve the problems of poor detection effect of canned products with a single viewing angle and many blind spots. At the same time, it is different from the simple one-plus-one combination of traditional multi-light source systems, and can obtain images on both sides, thereby improving consistency while improving imaging quality and imaging information.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A novel X-ray foreign body detection system with dual light sources and four viewing angles comprises a transmission device and a first detection module and a second detection module.

[0007] The first detection module comprises a first X-ray light source generator device, a first collimating spectrometer device, a first viewing angle X-ray receiver device and a second viewing angle X-ray receiver device, the output end of the first X-ray light source generator device is connected to the input end of the first collimating spectrometer device, the X-rays emitted from the two output ends of the first collimating spectrometer device are respectively received by the first viewing angle X-ray receiver device and the second viewing angle X-ray receiver device, and the first X-ray light source generator device and the first collimating spectrometer device are arranged on a first side of the transmission device, and the first viewing angle X-ray receiver device and the second viewing angle X-ray receiver device are arranged on a second side of the transmission device;

[0008] The second detection module includes a second X-ray light source generator device, a second collimating spectrometer device, a third-viewing angle X-ray receiver device and a fourth-viewing angle X-ray receiver device. The output end of the second X-ray light source generator device is connected to the input end of the second collimating spectrometer device. The X-rays emitted from the two output ends of the second collimating spectrometer device are respectively received by the third-viewing angle X-ray receiver device and the fourth-viewing angle X-ray receiver device. The third-viewing angle X-ray receiver device and the fourth-viewing angle X-ray receiver device are arranged on the second side of the transmission device, and the third-viewing angle X-ray receiver device and the fourth-viewing angle X-ray receiver device are arranged on the first side of the transmission device.

[0009] The X-rays emitted from the two output ends of the first collimating and splitting device are axially symmetric with the X-rays emitted from the two output ends of the second collimating and splitting device.

[0010] The receiving surfaces of the first viewing angle X-ray receiver device, the second viewing angle X-ray receiver device, the third viewing angle X-ray receiver device and the fourth viewing angle X-ray receiver device are all perpendicular to the incident X-rays.

[0011] The included angle of the X-rays emitted from the two output ends of the first collimating and splitting device is an obtuse angle, and the included angle of the X-rays emitted from the two output ends of the second collimating and splitting device is an obtuse angle.

[0012] The included angle of the X-rays emitted from the two output ends of the first collimating and splitting device is 60 degrees, and the included angle of the X-rays emitted from the two output ends of the second collimating and splitting device is 60 degrees.

[0013] The bottom of the first X-ray light source generator device is flush with the bottom of the material to be tested.

[0014] The conveying device is a transmission chain plate.

[0015] The first X-ray source generator device and the second X-ray source generator device are identical.

[0016] The distance between the first viewing angle X-ray receiver device and the second viewing angle X-ray receiver device and the transmission device is smaller than the distance between the second X-ray light source generator device and the transmission device.

[0017] The distance between the third viewing angle X-ray receiver device and the fourth viewing angle X-ray receiver device and the transmission device is smaller than the distance between the first X-ray light source generator device and the transmission device.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) By setting up X-ray light source generator devices on both sides and performing light splitting based on the collimating light splitting device, the problem of poor detection effect of canned products with a single viewing angle and many blind spots can be solved. At the same time, it is different from the simple one-plus-one combination of the traditional multi-light source system, and images on both sides can be obtained, which improves consistency while improving imaging quality and imaging information.

[0020] 2) The first detection module and the second detection module are symmetrically arranged, which can simplify the subsequent algorithms and reduce development costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the principle structure of the present invention;

[0022] Figure 2 This is a schematic diagram of a single light source irradiating an object under test in the present invention;

[0023] Figure 3 A schematic diagram of the ray angle of the light splitting device of a single light source in the present invention;

[0024] Figure 4 A schematic diagram of the angle at which rays irradiate an object in the present invention;

[0025] Wherein: 101, a first X-ray light source generator device, 102, a second X-ray light source generator device, 201, a first collimating spectrometer device, 301, a first beam of X-rays, 302, a second beam of X-rays, 303, a third beam of X-rays, 304, a fourth beam of X-rays, 401, a first viewing angle X-ray receiver device, 402, a second viewing angle X-ray receiver device, 403, a third viewing angle X-ray receiver device, 404, a fourth viewing angle X-ray receiver device, 501, a material to be tested. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0027] A new X-ray foreign body detection system with dual light sources and four viewing angles, such as Figures 1 to 4 As shown, it includes a transmission device and a first detection module and a second detection module,

[0028] The first detection module includes a first X-ray light source generator device 101, a first collimating spectrometer device 201, a first viewing angle X-ray receiver device 401 and a second viewing angle X-ray receiver device 402, the output end of the first X-ray light source generator device 101 is connected to the input end of the first collimating spectrometer device 201, the X-rays emitted from the two output ends of the first collimating spectrometer device 201 are respectively received by the first viewing angle X-ray receiver device 401 and the second viewing angle X-ray receiver device 402, and the first X-ray light source generator device 101 and the first collimating spectrometer device 201 are arranged on a first side of the transmission device, and the first viewing angle X-ray receiver device 401 and the second viewing angle X-ray receiver device 402 are arranged on a second side of the transmission device;

[0029] The second detection module includes a second X-ray light source generator device 102, a second collimating spectrometer, a third-viewing angle X-ray receiver device 403 and a fourth-viewing angle X-ray receiver device 404. The output end of the second X-ray light source generator device 102 is connected to the input end of the second collimating spectrometer. The X-rays emitted from the two output ends of the second collimating spectrometer are respectively received by the third-viewing angle X-ray receiver device 403 and the fourth-viewing angle X-ray receiver device 404. The third-viewing angle X-ray receiver device 403 and the fourth-viewing angle X-ray receiver device 404 are arranged on the second side of the transmission device, and the third-viewing angle X-ray receiver device 403 and the fourth-viewing angle X-ray receiver device 404 are arranged on the first side of the transmission device.

[0030] The four-view X-ray receiver devices collect the X-rays transmitted through the material to be tested 501 and output them to the image acquisition system to obtain four symmetrical angles of view imaging, and through the product grayscale image, point-to-point comparative analysis can be performed in subsequent image recognition. By setting up X-ray light source generator devices on both sides and performing light splitting based on the collimating light splitting device, the problem of poor detection effect of canned products with a single view angle and many blind spots can be solved. It is different from the traditional one-plus-one combination of multiple light source systems, and the imaging on both sides can be obtained, which improves consistency while improving imaging quality and imaging information.

[0031] In some embodiments, the X-rays emitted from the two output ends of the first collimating spectrometer 201 are axially symmetrical with the X-rays emitted from the two output ends of the second collimating spectrometer. The symmetrical arrangement of the first detection module and the second detection module can simplify the subsequent algorithm and reduce the development cost.

[0032] In some embodiments, the receiving surfaces of the first viewing angle X-ray receiver device 401, the second viewing angle X-ray receiver device 402, the third viewing angle X-ray receiver device 403 and the fourth viewing angle X-ray receiver device 404 are all perpendicular to the incident X-rays, which can improve imaging quality while reducing energy consumption.

[0033] The angle between the X-rays emitted from the two output ends of the first collimating spectrometer 201 is an obtuse angle, and the angle between the X-rays emitted from the two output ends of the second collimating spectrometer is an obtuse angle. In some embodiments, the angle between the X-rays emitted from the two output ends of the first collimating spectrometer 201 is 60 degrees, and the angle between the X-rays emitted from the two output ends of the second collimating spectrometer is 60 degrees, which can balance the imaging feedback and the occupied area. The X-ray generator device is an X-ray source, and the emitted fan-shaped X-ray beam is divided into two beams after passing through the collimating spectrometer. The collimating spectrometer can be two completely equal filters, whose size must match the size of the ray source and the image sensor, which can evenly divide the incident light into two equal parts. The angle between the two adjacent beams of the spectrometer is 60°.

[0034] The bottom of the first X-ray source generator device 101 is flush with the bottom of the material to be tested 501. Similarly, the bottom of the second X-ray source generator device 102 is flush with the bottom of the material to be tested 501. The X-rays emitted by the light source generator device irradiate the material to be tested 501 at an angle of oblique upward.

[0035] In some embodiments, the conveying device is a transmission chain plate, and of course in other embodiments, it can also be a conveying medium such as a conveyor belt.

[0036] The first X-ray source generator device 101 and the second X-ray source generator device 102 are identical.

[0037] In some embodiments, the distances between the first viewing angle X-ray receiver device 401 and the second viewing angle X-ray receiver device 402 and the transmission device are smaller than the distance between the second X-ray light source generator device 102 and the transmission device. The distances between the third viewing angle X-ray receiver device 403 and the fourth viewing angle X-ray receiver device 404 and the transmission device are smaller than the distance between the first X-ray light source generator device 101 and the transmission device.

Claims

1. A new type of X-ray foreign body detection system with dual light sources and four viewing angles, characterized in that: It includes a transmission device and a first detection module and a second detection module, The first detection module comprises a first X-ray light source generator device (101), a first collimating spectrometer device (201), a first viewing angle X-ray receiver device (401) and a second viewing angle X-ray receiver device (402); the output end of the first X-ray light source generator device (101) is connected to the input end of the first collimating spectrometer device (201); the X-rays emitted from the two output ends of the first collimating spectrometer device (201) are respectively received by the first viewing angle X-ray receiver device (401) and the second viewing angle X-ray receiver device (402); the first X-ray light source generator device (101) and the first collimating spectrometer device (201) are arranged on a first side of a transmission device, and the first viewing angle X-ray receiver device (401) and the second viewing angle X-ray receiver device (402) are arranged on a second side of the transmission device; The second detection module comprises a second X-ray light source generator device (102), a second collimating spectrometer, a third-viewing angle X-ray receiver device (403) and a fourth-viewing angle X-ray receiver device (404); the output end of the second X-ray light source generator device (102) is connected to the input end of the second collimating spectrometer; the X-rays emitted from the two output ends of the second collimating spectrometer are respectively received by the third-viewing angle X-ray receiver device (403) and the fourth-viewing angle X-ray receiver device (404); the third-viewing angle X-ray receiver device (403) and the fourth-viewing angle X-ray receiver device (404) are arranged on the second side of the transmission device; and the third-viewing angle X-ray receiver device (403) and the fourth-viewing angle X-ray receiver device (404) are arranged on the first side of the transmission device; The X-rays emitted from the two output ends of the first collimating and splitting device (201) are axially symmetrical with the X-rays emitted from the two output ends of the second collimating and splitting device; The receiving surfaces of the first viewing angle X-ray receiver device (401), the second viewing angle X-ray receiver device (402), the third viewing angle X-ray receiver device (403) and the fourth viewing angle X-ray receiver device (404) are all perpendicular to the incident X-rays.

2. According to claim 1, a new type of X-ray foreign body detection system with dual light sources and four viewing angles is characterized in that: The included angle of the X-rays emitted from the two output ends of the first collimating beam splitting device (201) is an obtuse angle, and the included angle of the X-rays emitted from the two output ends of the second collimating beam splitting device is an obtuse angle.

3. According to claim 2, a new type of X-ray foreign body detection system with dual light sources and four viewing angles is characterized in that: The included angle of the X-rays emitted from the two output ends of the first collimating beam splitting device (201) is 60 degrees, and the included angle of the X-rays emitted from the two output ends of the second collimating beam splitting device is 60 degrees.

4. According to claim 1, a new type of X-ray foreign body detection system with dual light sources and four viewing angles is characterized in that: The bottom of the first X-ray light source generator device (101) is flush with the bottom of the material to be tested (501).

5. According to claim 1, a new type of X-ray foreign body detection system with dual light sources and four viewing angles is characterized in that: The conveying device is a transmission chain plate.

6. The novel dual-light source four-viewing angle X-ray foreign body detection system according to claim 1 is characterized in that: The distance between the first viewing angle X-ray receiver device (401) and the second viewing angle X-ray receiver device (402) and the transmission device is smaller than the distance between the second X-ray light source generator device (102) and the transmission device.

7. The novel X-ray foreign body detection system with dual light sources and four viewing angles according to claim 1 is characterized in that: The distance between the third viewing angle X-ray receiver device (403) and the fourth viewing angle X-ray receiver device (404) and the transmission device is smaller than the distance between the first X-ray light source generator device (101) and the transmission device.

Images