WO2022233154A1 - 静态ct检测设备 - Google Patents

静态ct检测设备 Download PDF

Info

Publication number
WO2022233154A1
WO2022233154A1 PCT/CN2022/071627 CN2022071627W WO2022233154A1 WO 2022233154 A1 WO2022233154 A1 WO 2022233154A1 CN 2022071627 W CN2022071627 W CN 2022071627W WO 2022233154 A1 WO2022233154 A1 WO 2022233154A1
Authority
WO
WIPO (PCT)
Prior art keywords
static
detection
opening
detection channel
detected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/071627
Other languages
English (en)
French (fr)
Inventor
陈志强
张丽
黄清萍
周勇
丁辉
季超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Nuctech Co Ltd
Original Assignee
Tsinghua University
Nuctech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University, Nuctech Co Ltd filed Critical Tsinghua University
Publication of WO2022233154A1 publication Critical patent/WO2022233154A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22B—SLAUGHTERING
    • A22B5/00—Accessories for use during or after slaughtering
    • A22B5/0064—Accessories for use during or after slaughtering for classifying or grading carcasses; for measuring back fat
    • A22B5/007—Non-invasive scanning of carcasses, e.g. using image recognition, tomography, X-rays, ultrasound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/18—Investigating the presence of flaws defects or foreign matter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/03—Investigating materials by wave or particle radiation by transmission
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/10—Different kinds of radiation or particles
    • G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
    • G01N2223/1016—X-ray
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/20—Sources of radiation
    • G01N2223/204—Sources of radiation source created from radiated target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/309—Accessories, mechanical or electrical features support of sample holder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
    • G01N2223/3307—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts source and detector fixed; object moves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
    • G01N2223/3308—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts object translates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/50—Detectors
    • G01N2223/501—Detectors array
    • G01N2223/5015—Detectors array linear array
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/612—Specific applications or type of materials biological material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/618—Specific applications or type of materials food
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/643—Specific applications or type of materials object on conveyor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/12—Meat; Fish

Definitions

  • the present disclosure relates to CT (Computed Tomography, computer tomography) detection equipment, and particularly to static CT detection equipment.
  • CT Computer Tomography
  • a detection channel is formed surrounded by 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, the work of moving the object to be detected on the conveyor is required.
  • the present disclosure provides a static CT detection device.
  • One aspect of the present disclosure is a static CT detection device, comprising: a shielding body formed with a detection channel through which an object to be detected can pass; the radiation of the detected object; and a detector for acquiring 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 detection channel. the exit of the detection channel.
  • the opening portion since the opening portion is provided, it can be combined with the assembly line equipment, and the object to be tested is conveyed by the assembly line equipment, without the need to install the conveyor belt, and the work of moving the object to be inspected on the conveyor belt is not required, and the work efficiency is improved.
  • the conveying member that drives the object to be detected through the detection channel extends toward the detection channel through the opening portion.
  • the static CT inspection apparatus of the above aspect further includes a shield cover driven by a drive device together with the conveyance member, and the shield cover covers the opening when the conveyance member passes through the opening.
  • the object to be detected does not come into contact with the shielding body when it is carried by the conveying member and passes through the detection channel.
  • the opening portion is located at the top of the shielding body.
  • the ray source is composed of at least one of a distributed ray source or a single-point ray source, and one or more ray sources that are orthogonal to the direction in which the detected object is transported along the detection channel
  • the radiation source is arranged outside the detection channel and around the part other than the opening.
  • the detector is located outside the detection channel corresponding to the radiation source, It is provided around the portion other than the opening.
  • the above-mentioned static CT detection equipment further includes upright shielding walls, which are erected on both sides of the opening in a direction orthogonal to the shielding body, and the shielding cover covers the opening when passing through the opening. Stand up the shielding wall.
  • the detected object is a meat substance.
  • the detection can be performed without contacting the meat substance, thus avoiding the contact between the meat substance and the detection device, and reducing the risk of cross infection.
  • the detection accuracy can be improved.
  • the equipment is less contaminated, reducing the frequency of cleaning.
  • the static CT detection device of the present disclosure since the static CT detection device can be effectively matched with the assembly line device, the manual operation is reduced, and the production cost is reduced.
  • FIG. 1 is an overall schematic diagram of a static CT detection device involved in an embodiment of the present disclosure
  • FIG. 2 is a cross-sectional view of a static CT detection device involved in an embodiment of the present disclosure
  • FIG. 3 is a cross-sectional view of a labyrinth cover of a static CT detection device according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of an example configuration of a ray source and a detector of a static CT detection device according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of another example of the configuration of the radiation source and the detector of the static CT detection device according to the embodiment of the present disclosure.
  • FIG. 1 is an overall schematic diagram of a static CT detection device according to an embodiment of the present disclosure.
  • FIG. 2 is a cross-sectional view of a static CT detection apparatus according to an embodiment of the present disclosure, taken along a direction perpendicular to the conveying direction of the movement channel shown in FIG. 1 . A detailed description will be given with reference to FIGS. 1 and 2 .
  • the static CT inspection 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 shield body 1 is supported by the frame 2, and of course, the shield body 1 may be directly placed on the floor without the frame 2 being provided.
  • the radiation source 3 emits radiation for detecting the detected object when the detected object passes through the detection channel G.
  • the detector 10 acquires the radiation emitted by the radiation source 3 and passing through the detection channel G.
  • the shield body 1 is formed with an opening 4 extending from the inlet of the detection channel G to the outlet of the detection channel G. As shown in FIG.
  • the object to be detected is the meat substance 9 as an example for description.
  • the shield body 1 is provided with an opening 4 at the top.
  • the meat substance 9 is usually hoisted on the assembly line for transportation, detection and processing.
  • the parts for conveying the meat substance 9 include an assembly line 6 , a hoisting part 8 and a driving part not shown.
  • the assembly line 1 is provided above the opening 4 of the static CT inspection apparatus.
  • the hoisting member 8 that drives the meat substance 9 through the detection channel G extends to the detection channel G through the opening 4 .
  • the hoisting component 8 drives the meat material 9 to move.
  • the hoisting component 8 extends into the detection channel G through the opening 4, and simultaneously drives the meat material 9 from The entrance of the detection channel G moves toward the exit of the detection channel G.
  • the meat substance 9 does not come into contact with the shielding body 1 when it is carried by the hoisting member 8 and passes through the detection channel G, and the meat substance 9 is not supported or carried by the shielding body 1 .
  • the radiation source 3 emits radiation to detect the meat material 9 .
  • the opposite detector corresponding to the radiation source 3 acquires the radiation incident on the inside, and performs detection.
  • the static CT detection equipment can be highly integrated with the assembly line, and an additional conveying device is not required.
  • when testing meat there is no need to insert a testing device into the meat, so as to realize non-contact testing of meat and avoid the risk of cross-contamination.
  • the contamination of the static detection CT equipment can be reduced, the interior can be kept clean, and the number of cleanings can be reduced.
  • the static CT detection device further includes a shielding cover 7, which is driven by a driving component (not shown) together with the hoisting component 9 to move along the assembly line 6.
  • a driving component not shown
  • the shield cover 7 covers the opening portion 4 . Therefore, radiation in the detection channel G can be effectively prevented from radiating.
  • the static CT detection apparatus further has a standing shielding wall 5, and FIG. 3 is a cross-sectional view of the labyrinth cover of the static CT detection apparatus.
  • the erected shielding walls 5 are erected on both sides of the opening 4 in a direction orthogonal to the shield body 1 , and the shielding cover 7 covers the erected shielding walls 5 when passing through the opening 4 . Therefore, by forming the shielding structure in which the erected shielding wall 5 and the shielding cover 7 form a labyrinth-like shielding structure, the radiation in the detection channel G can be effectively prevented from being radiated to the outside.
  • FIG. 4 is a schematic diagram showing an example of the configuration of a ray source and a detector of the static CT detection device according to the embodiment of the present disclosure.
  • the radiation source includes a plurality of distributed radiation sources, and on a plane orthogonal to the direction in which the detected object is transported along the detection channel, the distributed radiation sources are outside the detection channel and surround the opening.
  • the distributed ray sources here can be set continuously or intermittently. As shown in Figure 4, several distributed ray sources are connected end to end to form a ray source. That is, the radiation source 3 includes a plurality of distributed radiation sources, and the plurality of distributed radiation sources are provided in the same plane orthogonal to the direction in which the object to be detected is transported along the detection channel, and are provided in parts other than the opening.
  • multiple distributed ray sources can also be arranged in multiple different planes orthogonal to the direction in which the object to be detected is transported along the detection channel. When flat, they are connected end to end.
  • Fig. 4 shows the arrangement scheme of 6 groups of ray sources.
  • Each distributed ray source contains several ray point sources.
  • Each ray point source emits a fan-shaped X-ray in a controllable state, and the X-ray 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, such as more than 180°.
  • the distributed radiation sources are arranged according to the target coverage length required for CT reconstruction imaging and the size of a single radiation source.
  • FIG. 5 is a schematic diagram of another example of the configuration of the radiation source and the detector of the static CT detection device according to the embodiment of the present disclosure.
  • a polygonal distributed ray source 30 is used.
  • the detector 10 is disposed outside the detection channel and around the portion other than the opening corresponding to the radiation source.
  • the detection source here can be set continuously or intermittently.
  • the detector 10 acquires the radiation emitted from the radiation source from the opposite direction passing through the detection channel.
  • the detector ring formed by the detector around the shield body and the radiation source ring formed by the radiation source around the shield 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.
  • the rectangular detection channel is used as an example for description, but it is not limited to this.
  • the shape of the detection channel can be made into any shape such as ellipse and other polygons according to the requirements of the detected object.
  • the height and width dimensions of the detection channel can be designed into different dimensions according to requirements.
  • the position of the opening is described as an example in which the position of the opening is located at the top of the shield, but the present invention is not limited to this.
  • the openings may be provided at positions such as the side surface or the bottom surface of the shield.
  • the size and structure of the opening portion depend on the specific structure of the assembly line.
  • the target point of the distributed radiation source may be a straight line, a curved shape or a polygon.
  • the radiation source can be arranged in a multi-segment polyline shape or a curved shape.
  • the target points of the radiation source can be arranged continuously and uniformly, or they can be arranged intermittently and non-uniformly.
  • the distributed ray source can also be composed of a polyline distributed ray source.
  • the ray source is described by taking the distributed ray source as an example, but it is not limited to this.
  • the ray source can also be composed of a combination of single-point ray sources.
  • the setting of the single-point ray source can be continuous or discontinuous.
  • the detectors may also be arranged in a multi-segment broken line shape or a curved shape according to the shape of the detection channel.
  • the detectors may be continuously and uniformly arranged, or may be discontinuous and non-uniformly arranged. When part of the scan data is missing due to incomplete detector arrangement, data compensation can be used to make up for it, so as to form a complete CT reconstruction image.
  • the detection of meat substances is taken as an example for description. However, it is not limited to meat materials, as long as it is an object that needs to be processed on the assembly line and needs CT detection.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Toxicology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Biophysics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Medicinal Chemistry (AREA)

Abstract

一种静态CT检测设备，包括：屏蔽体(1)，形成有被检测物能够通过的检测通道(G)；射线源(3,30)，当被检测物经过检测通道(G)时发射用于检测被检测物的射线；以及探测器(10)，获取射线源(3,30)发射的、穿过检测通道(G)的射线，在屏蔽体(1)上形成有开口部(4)，开口部(4)从检测通道(G)的入口延伸至检测通道(G)的出口。

Description

静态CT检测设备
相关申请的交叉引用
本公开以2021年5月7日申请的申请号为202110496380.2且发明名称为“静态CT检测设备”的中国专利申请为优先权，并将其全部内容引用于此。
技术领域
本公开涉及CT(Computed Tomography，电子计算机断层扫描)检测设备，特别涉及静态CT检测设备。
背景技术
在现有的CT检测设备中，为了防止射线辐射出，由屏蔽体包围形成检测通道，利用通过检测通道的运送带，被检测物被运送到检测通道内并进行检测。在上述情况下，需要将被检测物移动到运送带上的工作。
发明内容
本公开提供了一种静态CT检测设备。
本公开涉及的一个方式是一种静态CT检测设备，包括：屏蔽体，形成有被检测物能够通过的检测通道；射线源，当被检测物经过所述检测通道时发射用于检测所述被检测物的射线；以及探测器，获取所述射线源发射的、穿过所述检测通道的射线，在所述屏蔽体上形成有开口部，该开口部从所述检测通道的入口延伸至所述检测通道的出口。
根据上述方式，由于具有开口部，能够与流水线设备结合，利用流水线设备运送被检测物，不需要设置运送带，更不需要将被检测物移动到运送带上的工作，提高了工作效率。
在上述方式的静态CT检测设备中，带动所述被检测物通过所述检测 通道的运送部件经由所述开口部伸向所述检测通道。
在上述方式的静态CT检测设备中，还包括屏蔽罩，与所述运送部件一起被驱动装置驱动，当所述运送部件经过所述开口部时所述屏蔽罩覆盖所述开口部。
根据上述，通过设置屏蔽罩，能够有效地防止检测通道中的射线辐射到外部。
在上述方式的静态CT检测设备中，所述被检测物在被所述运送部件带动而通过所述检测通道时不与所述屏蔽体接触。
根据上述，能够有效地防止因被检测物与屏蔽体接触而污染屏蔽体。
在上述的静态CT检测设备中，所述开口部位于所述屏蔽体的顶部。
根据上述，能够有效地利用静态CT设备检测吊装流水线上运来的被检测物。
在上述的静态CT检测设备中，所述射线源由分布式射线源或单点射线源中的至少一种构成，在与所述被检测物沿检测通道运送的方向正交的一个或多个平面上，所述射线源在所述检测通道外部、围绕所述开口部以外的部分设置。
在上述的静态CT检测设备中，在与所述被检测物沿检测通道运送的方向正交的一个或多个平面上，所述探测器与所述射线源对应地在所述检测通道外部、围绕所述开口部以外的部分设置。
在上述的静态CT检测设备，还包括立起屏蔽壁，在所述开口部的两侧沿与所述屏蔽体正交的方向立起设置，所述屏蔽罩经过所述开口部时覆盖所述立起屏蔽壁。
根据上述，通过在屏蔽体的开口部设置迷宫状的盖罩，能够更加有效地防止射线辐射到外部。
在上述的静态CT检测设备中，所述被检测物是肉类物质。
根据上述，能够不与肉类物质接触来进行检测，避免了肉类物质与检测装置的接触，减少了交叉感染的风险。另外，当将肉类物质吊装运入来进行检测时，能够提高了检测的准确性。另外，当肉类物质不与检测装置接触时，设备受污染较少，降低了清洗频率。
根据本公开的静态CT检测设备，由于能够有效地将静态CT检测设备与流水线设备配合，减少了人工操作，降低了生产成本。
附图说明
图1是本公开实施例涉及的静态CT检测设备的整体示意图；
图2是本公开实施例涉及的静态CT检测设备的截面图；
图3是本公开实施例涉及的静态CT检测设备的迷宫盖罩的截面图；
图4是本公开实施例涉及的静态CT检测设备的射线源与探测器的一例配置示意图；
图5是本公开实施例涉及的静态CT检测设备的射线源与探测器的又一例配置示意图。
符号说明
1屏蔽体
2框架
3、30射线源
4开口部
5屏蔽壁
6流水线
7屏蔽罩
8吊装部件
9肉类物质
10探测器
G检测通道
具体实施方式
下面将详细描述本公开的各个方面的特征和示例性实施例，为了使本公开的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施例，对本公开进行进一步详细描述。应理解，此处所描述的具体实施例仅被配置为解释本公开，并不被配置为限定本公开。对于本领域技术人员来说， 本公开可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本公开的示例来提供对本公开更好的理解。
作为一实施例，图1是本公开实施例涉及的静态CT检测设备的整体示意图。图2是沿图1所示的运动通道的运送方向垂直的方向上的、本公开实施例涉及的静态CT检测设备的截面图。参照图1和图2来进行详细说明。
静态CT检测设备包括屏蔽体1、框架2、射线源3以及探测器10。屏蔽体1包围形成检测通道G，被检测物能够通过该检测通道G。屏蔽体1被框架2支承，当然也可以不设置框架2而将屏蔽体1直接放置在地板上。射线源3当被检测物经过检测通道G时发射用于检测被检测物的射线。探测器10获取射线源3发射的、穿过检测通道G的射线。在屏蔽体1上形成有开口部4，该开口部4从检测通道G的入口延伸至检测通道G的出口。
在本实施例中，以被检测物是肉类物质9为例进行说明。
屏蔽体1在顶部开设有开口部4。肉类物质9通常被吊装在流水线上进行运送、检测、加工。如图1所示，运送肉类物质9的部件包括流水线6、吊装部件8以及未图示的驱动部件。流水线1设置在静态CT检测设备的开口部4的上方。带动肉类物质9通过检测通道G的吊装部件8经由开口部4伸向检测通道G。
当未图示的驱动部件工作，使吊装部件8带动肉类物质9移动，在经过静态CT检测设备上方时，吊装部件8经由开口部4伸入到检测通道G，同时带动肉类物质9从检测通道G的入口向检测通道G的出口移动。肉类物质9在被吊装部件8带动而通过检测通道G时不与屏蔽体1接触，并且，肉类物质9未被屏蔽体1支撑或承载。当肉类物质9经过与射线源3相对应的位置时，射线源3发射出射线，对肉类物质9进行检测。并且，与该射线源3对应的对向的探测器获取入射到内部的射线，从而进行检测。
通过在屏蔽体1上设置有开口部4，能够将静态CT检测设备与流水线进行高度整合，不需要额外的运送装置。在本实施例中，不需要将肉类物质9移动到运送带上的工作，而直接通过流水线运入到检测设备中，能够节省对肉类物质9进行检测所需要的时间，便利地在流水线上完成检测、 处理。另外，在对肉类进行检测时，也不需要将检测设备插入到肉中，实现肉类的非接触性的检测，避免了交叉污染的风险。另外，在本实施例中，由于肉类物质9不与屏蔽体1接触，因此能够减少对静态检测CT设备的污损，保持内部的清洁，减少清洗次数。另外，在本实施例中，能够代替人工而实现流水线进行分拣。
可选地，作为一个实施例，静态CT检测设备还包括屏蔽罩7，与吊装部件9一起被未图示的驱动部件驱动而沿流水线6移动，当吊装部件9经过静态CT检测设备的开口部4时屏蔽罩7覆盖开口部4。从而能够有效地防止检测通道G中的射线辐射出。
可选地，作为一个实施例，静态CT检测设备还具有立起屏蔽壁5，图3是静态CT检测设备的迷宫盖罩的截面图。该立起屏蔽壁5在开口部4的两侧沿与屏蔽体1正交的方向立起设置，屏蔽罩7经过开口部4时覆盖立起屏蔽壁5。从而，通过形成立起屏蔽壁5与屏蔽罩7形成迷宫状的屏蔽结构，能够有效地防止检测通道G中的射线辐射到外部。
下面对上述实施例涉及的射线源与探测器进行详细说明。图4是本公开实施例涉及的静态CT检测设备的射线源与探测器的一例配置示意图。
在本实施例中，射线源包含多个分布式射线源，在与被检测物沿检测通道运送的方向正交的平面上，上述分布式射线源在所述检测通道外部、围绕所述开口部以外的部分设置。这里的分布式射线源可以连续地设置，也可以断续地设置。如图4所示，将若干个分布式射线源首尾相连组成射线源。即，射线源3包含多个分布式射线源，多个分布式射线源设置在与被检测物沿检测通道运送的方向正交的同一平面中，并设置在开口部以外的部分。当然，多个分布式射线源也可以设置在与被检测物沿检测通道运送的方向正交的多个不同平面内，例如，布置在多个平面内的射线源在投影到上述平面中的同一平面时，首尾相连。图4示出了6组射线源布置方案。每个分布式射线源包含若干个射线点源。每个射线点源在可控的状态下发射扇形的X射线，X射线能够覆盖一部分扫描通道。分布式射线源对通道内任一点的扫描角度满足CT重建成像要求，例如超过180°。分布式射线源根据CT重建成像所要求的靶点覆盖长度以及单个射线源的尺寸而 被布置。
图5是本公开实施例涉及的静态CT检测设备的射线源与探测器的又一例配置示意图。在本实施例中，采用了多边形分布式射线源30。
如图4和图5所示，在与所述被检测物沿检测通道运送的方向正交的平面上，探测器10与射线源对应地在检测通道外部、围绕开口部以外的部分设置。这里的探测源可以连续地设置，也可以断续地设置。探测器10获取从射线源发射的、来自对向的穿过检测通道的射线。探测器围绕屏蔽体形成的探测器环与射线源绕屏蔽体形成的射线源环在检测通道方向上错开一定距离，这样探测器不会遮挡其后部的射线源发射的射线。
在上述的实施例中，以矩形的检测通道为例进行了说明，但是并不限于此。检测通道的形状根据被检测物的需求，可以做成椭圆形、其他多边形等任意形状。检测通道的高度和宽度尺寸可根据需求，设计成不同的尺寸。当检测通道尺寸不同时，可根据尺寸增加或减少探测器和射线源的数量，因此不同尺寸的设备可共用相同的射线源和探测器部件，减少了成本。
在上述的实施例中，以开口部的位置位于屏蔽体的顶部为例进行了说明，但是并不限于此。根据被检测物以及流水线的具体结构，可以将开口部设置于屏蔽体的侧面或者底面等位置。另外，开口部的尺寸和结构取决于流水线的具体结构。
在上述的实施例中，分布式射线源的靶点可以为直线形、曲线形或者多边形。射线源可根据检测通道的形状，布置成多段折线形状或者布置成曲线形状。射线源的靶点可以是连续均匀排布，也可以是断续非均匀排布。另外，分布式射线源也可以由一个折线式分布式射线源构成。
在上述的实施例中，射线源以分布式射线源为例进行了说明，但并不限于此。射线源也可以为单点射线源组合组成。另外，单点射线源的设置可以是连续的，也可以是断续的。
在上述的实施例中，探测器也可根据检测通道的形状布置成多段折线形状或者布置成曲线形状。另外，探测器可以是连续均匀排布，也可以是断续非均匀排布。当探测器布置不完整而导致部分扫描数据缺失时，可以采用数据补偿方式进行弥补，从而形成完整的CT重建图像。
在上述的实施例中，以对肉类物质进行检测为例进行了说明。但是并不限于肉类物质，只要是需要在流水线上进行处理、并需要CT检测的物体即可。
以上，虽然结合附图描述了本公开的实施方式和具体实施例，但是本领域技术人员可以在不脱落本公开的精神和范围的情况下做出各种修改和变形，这样的修改和变形均落入由所述权利要求所限定的范围之内。

Claims (9)

  1. 一种静态CT检测设备，其特征在于，包括：
    屏蔽体，形成有被检测物能够通过的检测通道；
    射线源，当被检测物经过所述检测通道时发射用于检测所述被检测物的射线；以及
    探测器，获取所述射线源发射的、穿过所述检测通道的射线，
    在所述屏蔽体上形成有开口部，该开口部从所述检测通道的入口延伸至所述检测通道的出口。
  2. 如权利要求1所述的静态CT检测设备，其中，
    带动所述被检测物通过所述检测通道的运送部件经由所述开口部伸向所述检测通道。
  3. 如权利要求2所述的静态CT检测设备，其中，
    还包括屏蔽罩，与所述运送部件一起被驱动装置驱动，当所述运送部件经过所述开口部时所述屏蔽罩覆盖所述开口部。
  4. 如权利要求1所述的静态CT检测设备，其中，
    所述被检测物在被所述运送部件带动而通过所述检测通道时不与所述屏蔽体接触。
  5. 如权利要求1所述的静态CT检测设备，其中，
    所述开口部位于所述屏蔽体的顶部。
  6. 如权利要求1所述的静态CT检测设备，其中，
    所述射线源由分布式射线源或单点射线源中的至少一种构成，
    在与所述被检测物沿检测通道运送的方向正交的一个或多个平面上，所述射线源在所述检测通道外部、围绕所述开口部以外的部分设置。
  7. 如权利要求1所述的静态CT检测设备，其中，
    在与所述被检测物沿检测通道运送的方向正交的一个或多个平面上，所述探测器与所述射线源对应地在所述检测通道外部、围绕所述开口部以外的部分设置。
  8. 如权利要求3所述的静态CT检测设备，其中，
    还包括立起屏蔽壁，在所述开口部的两侧沿与所述屏蔽体正交的方向立起设置，
    所述屏蔽罩经过所述开口部时覆盖所述立起屏蔽壁。
  9. 如权利要求1至8中任一项所述的静态CT检测设备，其中，
    所述被检测物是肉类物质。
PCT/CN2022/071627 2021-05-07 2022-01-12 静态ct检测设备 Ceased WO2022233154A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110496380.2 2021-05-07
CN202110496380.2A CN113514482B (zh) 2021-05-07 2021-05-07 静态ct检测设备

Publications (1)

Publication Number Publication Date
WO2022233154A1 true WO2022233154A1 (zh) 2022-11-10

Family

ID=78064167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/071627 Ceased WO2022233154A1 (zh) 2021-05-07 2022-01-12 静态ct检测设备

Country Status (3)

Country Link
US (1) US11925183B2 (zh)
CN (1) CN113514482B (zh)
WO (1) WO2022233154A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113514482B (zh) * 2021-05-07 2025-04-11 清华大学 静态ct检测设备
CN113820339A (zh) * 2021-10-22 2021-12-21 上海高晶检测科技股份有限公司 异物检测设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030076924A1 (en) * 2001-10-19 2003-04-24 Mario Arthur W. Tomographic scanning X-ray inspection system using transmitted and compton scattered radiation
WO2008010732A1 (en) * 2006-07-21 2008-01-24 Robotic Technologies Limited An imaging apparatus and method of determining a cutting path and grading a carcass
WO2020190153A1 (en) * 2019-03-15 2020-09-24 Robotic Technologies Limited X-ray imaging system, method and shutter
US20200400561A1 (en) * 2018-02-16 2020-12-24 Herbert Kannegiesser Gmbh Method for inspecting textile articles
US20210041378A1 (en) * 2019-08-11 2021-02-11 Rapiscan Systems, Inc. Systems and Methods for Using Three-Dimensional X-Ray Imaging in Meat Production and Processing Applications
CN113514482A (zh) * 2021-05-07 2021-10-19 清华大学 静态ct检测设备

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU722769B2 (en) * 1996-08-23 2000-08-10 Her Majesty The Queen In Right Of Canada As Represented By The Department Of Agriculture And Agri-Food Canada Method and apparatus for using image analysis to determine meat and carcass characteristics
NZ502033A (en) 2000-06-11 2003-05-30 Inst Of Geol & Nuclear Science Assessing properties of meat such as the fat or lean meat content using dual energy x-ray absorption scanner
US7072440B2 (en) * 2001-10-19 2006-07-04 Control Screening, Llc Tomographic scanning X-ray inspection system using transmitted and Compton scattered radiation
JP5376367B2 (ja) * 2009-06-05 2013-12-25 学校法人関西医科大学 放射線シールド装置
CN201788151U (zh) 2010-08-18 2011-04-06 江西农业大学 禽肉综合品质的无损检测装置
BR112014022541B1 (pt) * 2012-03-13 2022-03-08 Mayekawa Mfg. Co., Ltd Dispositivo e método para captura de imagem de raio x de carne com osso
JP5848216B2 (ja) * 2012-09-04 2016-01-27 株式会社リガク Ｘ線ｃｔ装置
EP2912946B1 (en) * 2012-10-23 2017-07-12 Mayekawa Mfg. Co., Ltd. Right/left discrimination system for pig carcass limb sections
CN105372269B (zh) * 2014-09-02 2019-01-15 同方威视技术股份有限公司 X射线产品质量自动检测装置
CN105527654B (zh) * 2015-12-29 2019-05-03 中检科威（北京）科技有限公司 一种检验检疫用检查装置
US10790067B2 (en) * 2016-11-02 2020-09-29 Anritsu Infivis Co., Ltd. X-ray inspection device
US10726537B2 (en) * 2018-08-29 2020-07-28 Horst Eger Image acquisition for meat grading
CN211300018U (zh) * 2019-08-13 2020-08-21 明峰医疗系统股份有限公司 一种带电离辐射屏蔽的ct成像设备
CN112666192A (zh) * 2020-12-11 2021-04-16 西安增材制造国家研究院有限公司 一种开放仓体式ct检测设备
CN215910373U (zh) * 2021-05-07 2022-02-25 清华大学 静态ct检测设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030076924A1 (en) * 2001-10-19 2003-04-24 Mario Arthur W. Tomographic scanning X-ray inspection system using transmitted and compton scattered radiation
WO2008010732A1 (en) * 2006-07-21 2008-01-24 Robotic Technologies Limited An imaging apparatus and method of determining a cutting path and grading a carcass
US20200400561A1 (en) * 2018-02-16 2020-12-24 Herbert Kannegiesser Gmbh Method for inspecting textile articles
WO2020190153A1 (en) * 2019-03-15 2020-09-24 Robotic Technologies Limited X-ray imaging system, method and shutter
US20210041378A1 (en) * 2019-08-11 2021-02-11 Rapiscan Systems, Inc. Systems and Methods for Using Three-Dimensional X-Ray Imaging in Meat Production and Processing Applications
CN113514482A (zh) * 2021-05-07 2021-10-19 清华大学 静态ct检测设备

Also Published As

Publication number Publication date
US11925183B2 (en) 2024-03-12
CN113514482B (zh) 2025-04-11
US20220357288A1 (en) 2022-11-10
CN113514482A (zh) 2021-10-19

Similar Documents

Publication Publication Date Title
US11714054B2 (en) Inline x-ray measurement apparatus and method
CN215910373U (zh) 静态ct检测设备
US10823686B2 (en) X-ray inspection method and X-ray inspection device
JP2015519577A (ja) 容器および／または容器の内容物の欠陥のｘ線検出
CN1745435A (zh) 在海港等处对货物运载容器的辐射扫描
CN103175855B (zh) 一种具有转动传送器的安全检查装置
US11925183B2 (en) Static CT detection device
JPH0949883A (ja) 異物検査装置
US20190142351A1 (en) Ct-scanner with large detector pixels and/or hygienic design for continuous scanning
WO2017191162A1 (en) Ct-scanner with large detector pixels and/or hygienic design for continuous scanning
EP3583409B1 (en) Tray conveyor baggage handling and imaging system
JP2000074856A (ja) Ｘ線異物検査装置
CN111693550B (zh) 放射线检查装置
JP2015203574A (ja) Ｘ線検査装置及びｘ線感度補正方法
JP2009008441A (ja) 半固定式物質同定装置および方法
CN203249877U (zh) 一种具有转动传送器的安全检查装置
CN106596601B (zh) 安全检查系统
JP2002082199A (ja) 放射線検査装置
JP2004020297A (ja) Ｘ線異物検査装置
JP6285674B2 (ja) Ｘ線検査装置
JP7153525B2 (ja) Ｘ線検査装置
JP5388807B2 (ja) Ｘ線遮蔽装置及びそれを用いたｘ線異物検出システム
JP3207873U (ja) Ｘ線異物検出装置
JP2002318207A (ja) 放射線検査装置
JP7764187B2 (ja) 検査装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22798496

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22798496

Country of ref document: EP

Kind code of ref document: A1