CN103675932A - Detection device - Google Patents

Detection device Download PDF

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Publication number
CN103675932A
CN103675932A CN201310690392.4A CN201310690392A CN103675932A CN 103675932 A CN103675932 A CN 103675932A CN 201310690392 A CN201310690392 A CN 201310690392A CN 103675932 A CN103675932 A CN 103675932A
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China
Prior art keywords
detector
generation device
ray generation
testing fixture
coupling arrangement
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Granted
Application number
CN201310690392.4A
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Chinese (zh)
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CN103675932B (en
Inventor
李元景
张丽
薛昕
林东
张金宇
王涛
陈明
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Tsinghua University
Nuctech Co Ltd
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Tsinghua University
Nuctech Co Ltd
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Publication date
Application filed by Tsinghua University, Nuctech Co Ltd filed Critical Tsinghua University
Priority to CN201310690392.4A priority Critical patent/CN103675932B/en
Priority claimed from CN2010106205168A external-priority patent/CN102539453B/en
Publication of CN103675932A publication Critical patent/CN103675932A/en
Application granted granted Critical
Publication of CN103675932B publication Critical patent/CN103675932B/en
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  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The invention discloses a detection device which comprises a ray source and a detector, wherein the ray source is used for emitting rays, and the detector is a preset distance away from the ray source and used for receiving rays emitted by the ray source. The ray source and the detector can swing around a vertical axis at the same angular speed. The detection device is high in scanning speed and high in detection pass rate. A person stands still, so that an artifact caused by moving of the person is avoided, imaging quality is high, and the detection process is high in comfort.

Description

Testing fixture
The application is dividing an application of application number is 201010620516.8, the applying date is on Dec 31st, 2010, denomination of invention is " testing fixture " patented claim.
Technical field
The present invention relates to a kind of testing fixture, especially for the testing fixture of human body safety inspection.
Background technology
Utilize human body safety inspection device, X ray forms scan image after penetrating human body, can in body/external dangerous material/contraband goods of carrying checks.
In human body safety inspection system, substantially it is two types: one type is imaging system vertical movement scanning, human body plants oneself, this type systematic tested person has good comfortableness, but swash width is longer, in order to reduce the impact of motion on imaging system, conventionally adopt lower sweep velocity, so equipment inspection percent of pass is lower simultaneously; Another kind of type is that imaging system is motionless, and human body stand on transfer system and carries out tangential movement, and this type systematic tested person's comfortableness is poor, and mobile people knows from experience and produce scanning artifact, affects imaging effect.
Summary of the invention
The object of this invention is to provide a kind of testing fixture, this testing fixture can improve inspection percent of pass.
According to an aspect of the present invention, the invention provides a kind of testing fixture, this testing fixture, comprising: for the ray generation device of divergent-ray; And with described ray generation device interval preset distance and for receiving the detector of the ray that ray generation device sends, wherein said ray generation device and described detector can swing around vertical axis with identical angular velocity.
In the present invention, tested person plants oneself, and X-ray generator and detector synchronously swing along human body left and right Width in surface level.Because wobble area needs only envelope tested person left and right width, so movement travel is short, and sweep velocity is fast, and device checks that percent of pass is high.Human body plants oneself, and has avoided human body to rock the artifact causing, and image quality is high, and checking process comfort level is high.In the present invention, the human body region of standing can be passage, can realize through type inspection thus.
Accompanying drawing explanation
Fig. 1 is according to the schematic front view of the testing fixture of the embodiment of the present invention.
Fig. 2 is according to the diagrammatic top view of the testing fixture of the embodiment of the present invention.
Embodiment
As illustrated in fig. 1 and 2, testing fixture 100 comprises according to an embodiment of the invention: for the ray generation device 105 of divergent-ray; And with described ray generation device interval preset distance and for receiving the detector 10 of the ray that ray generation device 105 sends.Described ray generation device 105 and described detector 10 can swing around vertical axis 107 with identical angular velocity.Testing fixture 100 also comprises coupling arrangement 109, and this coupling arrangement 109 connects described ray generation device 105 and described detector 10, and described ray generation device 105 and described detector 10 are swung around vertical axis 107 with identical angular velocity.Testing fixture 100 also comprises: frame 5, the bearing support block 1 being fixedly connected with frame 5.Ray generation device 105 comprises: x-ray source bracing frame 3, x-ray source 4, the fan-shaped shielding box 6 of X ray and collimating apparatus 7.Ray generation device 105 can be any suitable ray generation device.In addition, testing fixture 100 also comprises: check passage 8, check that passage 8 is formed in frame 5.Tested person 9 can stand on and checks receiving check in passage 8.The both sides that check passage 8 all can pass in and out.Ray generation device 105 and described detector 10 rough alignment.
Coupling arrangement 109 comprises: vertical axes 1091, and the axis of described vertical axes 1091 is described vertical axis 107; And the web member 15 being fixedly connected with vertical axes.Vertical axes 1091 is supported by bearing support block 1 by bearing 2, and ray generation device 105 is fixedly connected with vertical axes 1091, and detector 10 is fixedly connected with described web member 15.Web member 15 can approximate horizontal extends and can be bar.
Testing fixture 100 also comprises: drive unit 120, described drive unit 120 is connected to the end away from described vertical axis 107 of described coupling arrangement 109, for driving described coupling arrangement 109 to swing around described vertical axis 107.
Drive unit 120 comprises driving wheel 14, and described driving wheel 14 is installed in rotation on the end of described coupling arrangement 109, and by coupling arrangement 109 described in the roll drive of this driving wheel 14, for example, this driving wheel 14 can contact with ground.Described drive unit 120 also comprises the drive source for driving described driving wheel 14 to rotate.Drive source can consist of motor 12 and driving gear pair 11.Driving wheel 14 is arranged on the end of coupling arrangement 109 by bearing 13.
At described detector 10, during around vertical axis 107 along arc swing, described web member 15 can be the connecting link of one.
Described web member 15 can be telescopic, and described detector 10 can roughly be moved along a straight line.For example, web member 15 is telescopic, and web member comprises sleeve pipe and bar, and insert sleeve pipe from one end of sleeve pipe slidably one end of this bar, and the other end of described sleeve pipe is fixedly connected with described vertical axes, and described bar is fixedly connected with described detector.
In use, motor 12 drives driving gear pairs 11, and driving wheel 14 rolls, and drives web member 15 to swing around vertical axis 107, pendulum angle envelope tested person 9 region of standing.When web member 15 swings, x-ray source bracing frame 3, x-ray source 4, the fan-shaped shielding box 6 of X ray, collimating apparatus 7, detector 10 are done synchronous swing.The X ray that x-ray source 4 sends becomes fan-shaped plan bundle after collimating apparatus 7, through after tested person 9, enter detector 10 receiving areas, detector 10 produces the electric signal corresponding with X ray intensity, periodically gather this electric signal, and further convert digital signal to, just can generate row and can be used for the sweep trace showing, some column scan lines generate a width scan image.
Tested person 9 plants oneself, and x-ray source 4 and detector 10 synchronously swing along tested person's 9 left and right Widths in surface level.Because wobble area needs only envelope tested person 9 left and right width, so movement travel is short, and sweep velocity is fast, and device checks that percent of pass is high.Human body plants oneself, and has avoided human body to rock the artifact causing, and image quality is high, and checking process comfort level is high.
In addition, X ray is through after tested person 9, and the spreading width in the receiving area of detector 10 is less than receiving area width, guarantees that the ray of all arrival detectors 10 is all effectively received.In motion process, the X ray that also will guarantee all the time to penetrate human body all enters the receiving area of detector 10.X-ray source 4 to go out bundle mouthful, the collimating slit of collimating apparatus 7 and the receiving area of detector 10 be coplanar all the time in motion process.Web member 15 both can be rigid rod shown in the drawings, can be also sliding sleeve and Slide bar structure, thereby realize in connecting rod swing process detector 10 rectilinear motions.When web member 15 adopts sliding sleeve and Slide bar structure, detector 10 and related fittings need linear guide, and guide piece can be guide rail, axle or other devices.
In addition, can utilize the angle feedback signal of motor 12 rotors, take to wait move distance or equal angles to trigger the control mode of detector 10 collection signals, also can adopt the firing control of timer isochronic interval.This example can adopt equal angles firing control.
Tested person 9, when checking, can stand on the ramp that X ray can penetrate, thereby realize foot, checks.

Claims (8)

1. a testing fixture, comprising:
Ray generation device for divergent-ray;
With described ray generation device interval preset distance and for receiving the detector of the ray that ray generation device sends, wherein said ray generation device and described detector can swing around vertical axis with identical angular velocity;
Coupling arrangement, this coupling arrangement connects described ray generation device and described detector, and described ray generation device and described detector are swung around vertical axis with identical angular velocity; And
Drive unit, described drive unit is connected to the end away from described vertical axis of described coupling arrangement, for driving described coupling arrangement to swing around described vertical axis,
Wherein the receiving area that goes out bundle mouth and detector of ray generation device is coplanar all the time in motion process.
2. testing fixture according to claim 1, wherein
Described coupling arrangement comprises: vertical axes, and the axis of described vertical axes is described vertical axis; And the web member being fixedly connected with vertical axes, and
Wherein said ray generation device is fixedly connected with vertical axes, and described detector is fixedly connected with described web member.
3. testing fixture according to claim 2, wherein
Described web member is telescopic, and described detector can roughly be moved along a straight line.
4. testing fixture according to claim 3, wherein
Described web member is telescopic.
5. testing fixture according to claim 3, wherein
Described web member comprises bar.
6. testing fixture according to claim 1, wherein
Described drive unit comprises driving wheel, and described driving wheel is installed in rotation on the described end of described coupling arrangement, by coupling arrangement described in the roll drive of this driving wheel.
7. testing fixture according to claim 6, wherein
Described drive unit also comprises the drive source for driving described driving wheel to rotate.
8. testing fixture according to claim 1, wherein
Described ray generation device and described detector rough alignment.
CN201310690392.4A 2010-12-31 2010-12-31 Check device Active CN103675932B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310690392.4A CN103675932B (en) 2010-12-31 2010-12-31 Check device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310690392.4A CN103675932B (en) 2010-12-31 2010-12-31 Check device
CN2010106205168A CN102539453B (en) 2010-12-31 2010-12-31 Checking device

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CN103675932A true CN103675932A (en) 2014-03-26
CN103675932B CN103675932B (en) 2016-09-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112731543A (en) * 2021-03-29 2021-04-30 苏州国辰生物科技股份有限公司 Pedestrian/luggage channel type radioisotope detection device
WO2024140564A1 (en) * 2022-12-28 2024-07-04 同方威视技术股份有限公司 Security inspection system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103742B1 (en) * 1982-09-22 1987-01-21 General Electric Company Angulating lateral fluoroscopic suspension
US6435714B1 (en) * 1999-08-04 2002-08-20 Siemens Aktiengesellschaft X-ray diagnostic device
CN1791782A (en) * 2003-05-16 2006-06-21 Ge检查技术有限公司 Manipulator for a device used for non-destructive material testing
CN2882537Y (en) * 2005-05-26 2007-03-28 黎剑锋 X-ray diagnoser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103742B1 (en) * 1982-09-22 1987-01-21 General Electric Company Angulating lateral fluoroscopic suspension
US6435714B1 (en) * 1999-08-04 2002-08-20 Siemens Aktiengesellschaft X-ray diagnostic device
CN1791782A (en) * 2003-05-16 2006-06-21 Ge检查技术有限公司 Manipulator for a device used for non-destructive material testing
CN2882537Y (en) * 2005-05-26 2007-03-28 黎剑锋 X-ray diagnoser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112731543A (en) * 2021-03-29 2021-04-30 苏州国辰生物科技股份有限公司 Pedestrian/luggage channel type radioisotope detection device
CN112731543B (en) * 2021-03-29 2021-07-13 苏州国辰生物科技股份有限公司 Pedestrian/luggage channel type radioisotope detection device
WO2024140564A1 (en) * 2022-12-28 2024-07-04 同方威视技术股份有限公司 Security inspection system

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