Static CT testing equipment

Abstract

The present invention relates to a static CT detection device, comprising: a shielding body, which forms a detection channel through which a detected object can pass; a ray source, which emits rays for detecting the detected object when the detected object passes through the detection channel; and a detector, which acquires the rays emitted by the ray source and passing through the detection channel, wherein an opening is formed on the shielding body, and the opening extends from the entrance of the detection channel to the exit of the detection channel.

Description

Technical Field

[0001] The present invention relates to CT (Computed Tomography) detection equipment, in particular to static CT detection equipment. Background Art

[0002] In the existing CT detection equipment, in order to prevent radiation from being emitted, a detection channel is formed by surrounding a shielding body, and the object to be detected is transported into the detection channel and detected by a conveyor belt passing through the detection channel. In the above case, it is necessary to move the object to be detected onto the conveyor belt. Summary of the invention

[0003] The invention provides a static CT detection device.

[0004] One embodiment of the present invention is a static CT detection device, comprising: a shielding body, forming a detection channel through which a detected object can pass; a ray source, emitting rays for detecting the detected object when the detected object passes through the detection channel; and a detector, acquiring rays emitted by the ray source and passing through the detection channel, wherein an opening is formed on the shielding body, and the opening extends from an entrance to an exit of the detection channel.

[0005] According to the above method, since it has an opening, it can be combined with an assembly line device to transport the inspected object using the assembly line device. There is no need to set up a conveyor belt, and there is no need to move the inspected object to the conveyor belt, thereby improving work efficiency.

[0006] In the static CT detection device of the above manner, the conveying member that drives the detected object through the detection channel extends toward the detection channel through the opening.

[0007] The static CT detection device of the above aspect further includes a shielding cover that is driven by a driving device together with the transport member, and the shielding cover covers the opening when the transport member passes through the opening.

[0008] According to the above, by providing a shielding cover, it is possible to effectively prevent the radiation in the detection channel from being radiated to the outside.

[0009] In the static CT inspection device of the above manner, the inspected object does not contact the shielding body when being driven by the transporting member and passing through the inspection channel.

[0010] According to the above, it is possible to effectively prevent the shield from being contaminated by the object to be detected coming into contact with the shield.

[0011] In the above-mentioned static CT detection equipment, the opening is located at the top of the shielding body.

[0012] Based on the above, the static CT equipment can be effectively used to detect the objects transported on the hoisting assembly line.

[0013] In the above-mentioned static CT detection equipment, the radiation source is composed of at least one of a distributed radiation source or a single point radiation source, and is arranged outside the detection channel and around the part other than the opening on one or more planes orthogonal to the direction in which the object to be detected is transported along the detection channel.

[0014] In the above-mentioned static CT detection equipment, on one or more planes orthogonal to the direction in which the detected object is transported along the detection channel, the detector and the radiation source are correspondingly arranged outside the detection channel and around the portion other than the opening.

[0015] The static CT detection device further includes a standing shielding wall, which is erected on both sides of the opening along a direction orthogonal to the shielding body, and the shielding cover covers the standing shielding wall when passing through the opening.

[0016] According to the above, by providing the labyrinth-shaped cover at the opening of the shield body, it is possible to more effectively prevent radiation from being radiated to the outside.

[0017] In the above-mentioned static CT detection equipment, the object to be detected is meat material.

[0018] According to the above, the detection can be performed without contacting the meat material, avoiding contact between the meat material and the detection device, and reducing the risk of cross infection. In addition, when the meat material is hoisted and transported for detection, the accuracy of the detection can be improved. In addition, when the meat material does not contact the detection device, the equipment is less contaminated and the cleaning frequency is reduced.

[0019] According to the static CT detection equipment of the present invention, since the static CT detection equipment can be effectively coordinated with the assembly line equipment, manual operations are reduced and production costs are lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an overall schematic diagram of a static CT detection device involved in an embodiment of the present invention;

[0021] Figure 2 is a cross-sectional view of a static CT detection device involved in an embodiment of the present invention;

[0022] Figure 3 is a cross-sectional view of a labyrinth cover of a static CT detection device according to an embodiment of the present invention;

[0023] Figure 4It is a schematic diagram of an example of configuration of a ray source and a detector of a static CT detection device involved in an embodiment of the present invention;

[0024] Figure 5 This is another example of a schematic diagram of the configuration of a ray source and a detector of a static CT detection device involved in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0026] As an example, Figure 1 It is an overall schematic diagram of a static CT detection device involved in an embodiment of the present invention. Figure 2 is along Figure 1 A cross-sectional view of a static CT detection device according to an embodiment of the present invention in a direction perpendicular to the transport direction of the moving channel shown. Figure 1 and Figure 2 to explain in detail.

[0027] The static CT detection equipment includes a shielding body 1, a frame 2, a radiation source 3 and a detector 10. The shielding body 1 surrounds and forms a detection channel G, through which the object to be detected can pass. The shielding body 1 is supported by the frame 2, and of course the shielding body 1 can be placed directly on the floor without the frame 2. The radiation source 3 emits radiation for detecting the object to be detected when the object to be detected passes through the detection channel G. The detector 10 acquires the radiation emitted by the radiation source 3 and passes through the detection channel G. An opening 4 is formed on the shielding body 1, and the opening 4 extends from the entrance of the detection channel G to the exit of the detection channel G.

[0028] In this embodiment, the detected object is meat material 9 as an example for description.

[0029] The shielding body 1 has an opening 4 at the top. The meat material 9 is usually hoisted on an assembly line for transportation, testing, and processing. Figure 1 As shown, the components for transporting the meat material 9 include an assembly line 6, a hanging component 8, and a driving component not shown. The assembly line 1 is arranged above the opening 4 of the static CT detection device. The hanging component 8 that drives the meat material 9 through the detection channel G extends to the detection channel G through the opening 4.

[0030] When the driving component (not shown) works, the hanging component 8 drives the meat material 9 to move. When passing above the static CT detection device, the hanging component 8 extends into the detection channel G through the opening 4, and drives the meat material 9 to move from the entrance of the detection channel G to the exit of the detection channel G. When the meat material 9 is driven by the hanging component 8 and passes through the detection channel G, it does not contact the shielding body 1, and the meat material 9 is not supported or carried by the shielding body 1. When the meat material 9 passes through the position corresponding to the radiation source 3, the radiation source 3 emits radiation to detect the meat material 9. In addition, the detector opposite to the radiation source 3 obtains the radiation incident inside, thereby performing detection.

[0031] By providing the opening 4 on the shielding body 1, the static CT detection equipment can be highly integrated with the assembly line without the need for an additional transport device. In the present embodiment, there is no need to move the meat material 9 to the conveyor belt, but the meat material 9 can be directly transported to the detection equipment through the assembly line, which can save the time required for the detection of the meat material 9 and conveniently complete the detection and processing on the assembly line. In addition, when testing the meat, there is no need to insert the detection equipment into the meat, so that non-contact detection of the meat is achieved, avoiding the risk of cross contamination. In addition, in the present embodiment, since the meat material 9 does not contact the shielding body 1, it is possible to reduce the contamination of the static detection CT equipment, keep the interior clean, and reduce the number of cleaning times. In addition, in the present embodiment, it is possible to replace manual labor to achieve assembly line sorting.

[0032] Optionally, as an embodiment, the static CT detection device further includes a shielding cover 7, which is driven by a driving component (not shown) together with the hanging component 9 to move along the assembly line 6, and when the hanging component 9 passes through the opening 4 of the static CT detection device, the shielding cover 7 covers the opening 4. Thus, the radiation in the detection channel G can be effectively prevented from being radiated.

[0033] Optionally, as an embodiment, the static CT detection device further comprises a vertical shielding wall 5. Figure 3 : is a cross-sectional view of a labyrinth cover of a static CT detection device. The upright shielding wall 5 is erected on both sides of the opening 4 in a direction orthogonal to the shielding body 1, and the shielding cover 7 covers the upright shielding wall 5 when passing through the opening 4. Thus, by forming a labyrinth-shaped shielding structure formed by the upright shielding wall 5 and the shielding cover 7, it is possible to effectively prevent the radiation in the detection channel G from radiating to the outside.

[0034] The ray source and the detector involved in the above embodiment are described in detail below. Figure 4 It is a schematic diagram of an example configuration of a ray source and a detector of a static CT detection device involved in an embodiment of the present invention.

[0035] In this embodiment, the radiation source includes a plurality of distributed radiation sources, which are arranged outside the detection channel and around the portion other than the opening on a plane orthogonal to the direction in which the detected object is transported along the detection channel. The distributed radiation sources may be arranged continuously or intermittently. Figure 4 As shown, a plurality of distributed ray sources are connected end to end to form a ray source. That is, the ray source 3 includes a plurality of distributed ray sources, and the plurality of distributed ray sources are arranged in the same plane orthogonal to the direction in which the detected object is transported along the detection channel, and are arranged in the portion outside the opening. Of course, the plurality of distributed ray sources may also be arranged in a plurality of different planes orthogonal to the direction in which the detected object is transported along the detection channel, for example, the ray sources arranged in a plurality of planes are connected end to end when projected onto the same plane in the above-mentioned planes. Figure 4 Six groups of ray source layout schemes are shown. Each distributed ray source includes several ray point sources. Each ray point source emits fan-shaped X-rays in a controllable state, and the X-rays can cover a part of the scanning channel. The scanning angle of the distributed ray source to any point in the channel meets the CT reconstruction imaging requirements, for example, more than 180°. The distributed ray sources are arranged according to the target coverage length required for CT reconstruction imaging and the size of a single ray source.

[0036] Figure 5 FIG. 2 is another schematic diagram of another configuration of a ray source and a detector of a static CT detection device according to an embodiment of the present invention. In this embodiment, a polygonal distributed ray source 30 is used.

[0037] like Figure 4 and Figure 5 As shown, on a plane orthogonal to the direction in which the detected object is transported along the detection channel, the detector 10 and the radiation source are correspondingly arranged outside the detection channel and around the portion outside the opening. The detection source here can be arranged continuously or intermittently. The detector 10 acquires the radiation emitted from the radiation source and passing through the detection channel from the opposite direction. The detector ring formed by the detector around the shielding body and the radiation source ring formed by the radiation source around the shielding body are staggered by a certain distance in the direction of the detection channel, so that the detector will not block the radiation emitted by the radiation source behind it.

[0038] In the above embodiments, a rectangular detection channel is used as an example, but it is not limited to this. The shape of the detection channel can be made into any shape such as an ellipse or other polygons according to the requirements of the object to be detected. The height and width of the detection channel can be designed into different sizes according to requirements. When the detection channel has different sizes, the number of detectors and radiation sources can be increased or decreased according to the size, so that devices of different sizes can share the same radiation source and detector components, reducing costs.

[0039] In the above-mentioned embodiment, the opening is located at the top of the shielding body, but it is not limited to this. According to the specific structure of the object to be detected and the production line, the opening can be set at the side or bottom of the shielding body. In addition, the size and structure of the opening depend on the specific structure of the production line.

[0040] In the above-mentioned embodiments, the target of the distributed ray source can be a straight line, a curve or a polygon. The ray source can be arranged in a multi-segment fold line shape or a curve shape according to the shape of the detection channel. The target of the ray source can be arranged continuously and evenly, or can be arranged intermittently and non-uniformly. In addition, the distributed ray source can also be composed of a fold line distributed ray source.

[0041] In the above embodiments, the ray source is described by taking a distributed ray source as an example, but it is not limited thereto. The ray source may also be composed of a combination of single point ray sources. In addition, the setting of the single point ray source may be continuous or intermittent.

[0042] In the above-mentioned embodiment, the detectors may also be arranged in a multi-segment fold line shape or a curve shape according to the shape of the detection channel. In addition, the detectors may be arranged continuously and evenly, or intermittently and non-uniformly. When the detector arrangement is incomplete and some scan data is missing, data compensation may be used to compensate for it, thereby forming a complete CT reconstructed image.

[0043] In the above-mentioned embodiment, the detection of meat is taken as an example for explanation, but it is not limited to meat, and any object that needs to be processed on the production line and needs CT detection can be used.

[0044] Although the implementation modes and specific examples of the present invention are described above in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the claims.

Claims

1. A static CT detection device, characterized in that: include: A shielding body, forming a detection channel through which the detected object can pass; A ray source, which emits rays for detecting the object when the object passes through the detection channel; as well as The detector acquires the radiation emitted by the radiation source and passing through the detection channel, An opening is formed on the shielding body, and the opening extends from the entrance of the detection channel to the exit of the detection channel. A conveying member that drives the detected object through the detection channel extends toward the detection channel through the opening. The invention further includes a shielding cover that is driven by a driving device together with the conveying member, and the shielding cover covers the opening when the conveying member passes through the opening.

2. The static CT detection device according to claim 1, wherein: The detected object does not contact the shielding body when being driven by the conveying component and passing through the detection channel.

3. The static CT detection device according to claim 1, wherein: The opening is located at the top of the shielding body.

4. The static CT detection device according to claim 1, wherein: The ray source is composed of at least one of a distributed ray source and a single point ray source. The radiation source is arranged outside the detection channel and around a portion other than the opening on one or more planes orthogonal to the direction in which the object to be detected is transported along the detection channel.

5. The static CT detection device according to claim 1, wherein: On one or more planes orthogonal to the direction in which the detected object is transported along the detection channel, the detector and the radiation source are correspondingly arranged outside the detection channel and around a portion other than the opening.

6. The static CT detection device according to claim 1, wherein: It also includes a standing shielding wall, which is erected on both sides of the opening along a direction orthogonal to the shielding body. The shield cover covers the upright shield wall when passing through the opening.

7. The static CT detection device according to any one of claims 1 to 6, wherein: The object to be detected is meat material.

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