CN207867053U - A kind of active transmission-type three-dimensional Terahertz package hazardous material detection device - Google Patents
A kind of active transmission-type three-dimensional Terahertz package hazardous material detection device Download PDFInfo
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- CN207867053U CN207867053U CN201820206939.7U CN201820206939U CN207867053U CN 207867053 U CN207867053 U CN 207867053U CN 201820206939 U CN201820206939 U CN 201820206939U CN 207867053 U CN207867053 U CN 207867053U
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- terahertz
- conveyer belt
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 239000013056 hazardous product Substances 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims abstract description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000003205 fragrance Substances 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 8
- 230000005855 radiation Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000002210 silicon-based material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model is related to rays safety detection apparatus production fields, specifically provide a kind of active transmission-type three-dimensional Terahertz package hazardous material detection device.Its structure includes two groups of terahertz sources components, two terahertz cameras corresponding with terahertz sources component, conveyer belt and computer, one group of terahertz sources component is arranged in the top of conveyer belt, corresponding, the terahertz camera for receiving its terahertz signal is arranged below conveyer belt；Another group of terahertz sources component is arranged in the side of conveyer belt traffic direction, corresponding, terahertz camera for receiving its terahertz signal is arranged in the other side of conveyer belt traffic direction, two terahertz cameras are connect with computer, built-in computer has image processing and analyzing module, described image processing module is used to read the data of two terahertz cameras of analysis, and image is shown on computers.Compared with prior art, the suspicious powder safety check apparatus of the utility model can carry out three-dimensional imaging to the dangerous material in package, have the characteristics that safety check success rate is high.
Description
Technical field
The utility model is related to rays safety detection apparatus production fields, specifically provide a kind of active transmission-type three-dimensional Terahertz package
Hazardous material detection device.
Background technology
The safety check apparatus of the prior art can only obtain the projected image of package in the horizontal plane.It is numerous for article in package
The case where mutually being covered between more and article, is unable to judge accurately the shape type of article, and then affect to danger such as gun cutters
The safety check success rate of dangerous product.
Invention content
The utility model is in view of the above shortcomings of the prior art, it is three-dimensional to provide a kind of safe and efficient active transmission-type
Terahertz wraps up hazardous material detection device.
Technical solution adopted by the utility model to solve its technical problems is：A kind of active transmission-type three-dimensional Terahertz
Wrap up hazardous material detection device, including two groups of terahertz sources components, two Terahertz phases corresponding with terahertz sources component
Machine, conveyer belt and computer, one group of terahertz sources component is arranged in the top of conveyer belt, corresponding, for receiving it
The terahertz camera of terahertz signal is arranged below conveyer belt；Another group of terahertz sources component is arranged in conveyer belt operation side
To side, corresponding, the terahertz camera for receiving its terahertz signal is arranged in the another of conveyer belt traffic direction
Side, two terahertz cameras are connect with computer, and built-in computer has image processing and analyzing module, described image to handle mould
Block is used to read the data of two terahertz cameras of analysis, and image is shown on computers.
When package passes through terahertz emission region with conveyer belt, two terahertz cameras are received respectively from different directions
The THz wave of two groups of terahertz sources components transmitting, is read by image processing and analyzing module and is analyzed, and image is existed
It is shown on computer.
Preferably, the terahertz sources component is made of THz source, waveguide and collimation Terahertz lens, waveguide
Pipe is fixed on the signal transmitting terminal of THz source, and the focal position of collimation Terahertz lens is located at waveguide tube signals output.
THz wave wave beam progress shaping that waveguide is used to emit THz source from waveguide so that be emitted
THz wave is emitted by design angle and is collimated Terahertz lens and received completely.
The collimation Terahertz lens are preferably Fresnel collimation lens, for THz wave to be converted into parallel wave, with
So that the terahertz emission even intensity of arrival conveyer belt radiation areas is distributed, improves the contrast being ultimately imaged.
The preferred high resistant silicon material of Fresnel collimation lens, working distance are preferably 10mm-100mm, and thickness is preferably 10-
20mm, visual field are preferably 20 ° -30 °, and clear aperature is preferably 50-80cm.
300GHZ-10THZ THz sources, preferably 400GHZ THz sources can be used in the THz source, because thus frequency
Section has taken into account the requirement that three-dimensional imaging needs high-power output THz source, and dangerous material can fuel oil etc. have in this frequency range
Specific imaging features.
In order to ensure that the good penetrability of THz source signal, the conveyer belt are preferably polytetrafluoroethylene (PTFE) material.
In order to adapt to different disposal speed, the conveyer belt is preferably speed conveyor belt with adjustable.Line speed adjusts model
It encloses for 0-1000mm/min, it is synchronous with terahertz camera.
For the ease of control, speed conveyor belt with adjustable can be connect with computer.
Terahertz camera described in the utility model is preferably high speed terahertz camera.
Preferably, two groups of terahertz sources components can respectively by the settings such as holder side and side on a moving belt, and
The spacing of two groups of terahertz sources components and conveyer belt is adjustable.The holder can pass through purely mechanic mode, cylinder or other well known
Method realizes its height or apart from adjustable.
Compared to the prior art the active transmission-type three-dimensional Terahertz package hazardous material detection device of the utility model, has
There is advantageous effect following prominent：
（One）Three-dimensional imaging can be carried out to the dangerous material in package, even if there are phases between article is various or article in package
Mutually covering the case where, also can accurate judgement article shape type and distribution situation, improve the safety check success rate of dangerous material；
（Two）By conveyer belt transmission can Rapid Detection package in dangerous material, further increase detection efficiency；
（Three）It can be needed adjusting terahertz sources component at a distance from conveyer belt according to actual safety check and the biography of conveyer belt
Speed is sent, the scope of application and the flexibility of device are improved.
Description of the drawings
Attached drawing 1 is the active transmission-type three-dimensional Terahertz package hazardous material detection apparatus structure schematic diagram of the utility model；
Attached drawing 2 is the A-A sectional views of three-dimensional Terahertz package hazardous material detection device shown in Fig. 1.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as to the utility model
Restriction.
Specific implementation mode is given below：
As shown in attached drawing 1,2, the three-dimensional Terahertz of the utility model wraps up hazardous material detection device mainly by THz source
1, THz source 2, waveguide 3, waveguide 4, Fresnel collimation lens 5, Fresnel collimation lens 6, conveyer belt 7, high speed terahertz
Hereby camera 8, high speed terahertz camera 9 and the composition of computer 10 for being built-in with image processing module.
First group of terahertz sources component that THz source 1, waveguide 3, Fresnel collimation lens 5 are constituted is assemblied in transmission
7 top of band.Wherein, waveguide 3 is fixed on the signal transmitting terminal of THz source 1, and the focal position of Fresnel collimation lens 5 is located at
At 3 signal output end of waveguide.High speed terahertz camera 8 is located at the lower section of conveyer belt 7, for receiving first group of terahertz sources
The terahertz signal of the vertical direction of component transmitting.The terahertz signal that THz source 1 is sent out by 3 beam-shaping of waveguide and
It passes through conveyer belt 7 to reach terahertz camera 8 after the collimation processing of Fresnel collimation lens 5, package is obtained in the horizontal plane with this
Projected image and transmission image information.
Second group of terahertz sources component that THz source 2, waveguide 4, Fresnel collimation lens 6 are constituted is assemblied in transmission
Side with 7 traffic directions.High speed terahertz camera 9 corresponding with second group of terahertz sources component is located at the another of conveyer belt 7
Side, the terahertz signal of the horizontal direction for receiving the transmitting of second group of terahertz sources component.THz source 2 is sent out too
Hertz signal reaches terahertz camera 9 by the processing of the collimation of 4 beam-shaping of waveguide and Fresnel collimation lens 6, is obtained with this
The side projection image and transmission image information that must be wrapped up.
High speed terahertz camera 8, high speed terahertz camera 9 are connect with computer 10.
THz source 1, THz source 2 are 400GHZ THz sources.
Fresnel collimation lens 5, Fresnel collimation lens 6 are all made of high resistant silicon material, working distance 10mm-100mm
Adjustable, thickness 10mm, visual field is 20 °, clear aperature 50cm.
Conveyer belt 7 is speed conveyor belt with adjustable（0-1000mm/min）, material is polytetrafluoroethylene (PTFE), relative to Terahertz
Radiation is transparent material.
When being detected 11 entirety of package by radiation areas, high speed terahertz camera 8 receives the vertical side for penetrating package
To terahertz signal, and the signal of receiving is converted into continuous digital video, similarly, the reception of high speed terahertz camera 9 is worn
The terahertz signal for the horizontal direction wrapped up thoroughly obtains the side transmission digital video for being detected package.Pass through image procossing mould
Obtained vertical direction is finally transmitted video, side transmission video and conveyer belt transmission speed and integrated, i.e., by the data processing of block
The three-dimensional spatial distribution and dangerous material composition information for being detected dangerous material in package can be restored.
Claims (8)
1. a kind of active transmission-type three-dimensional Terahertz wraps up hazardous material detection device, it is characterised in that：Including two groups of Terahertzs
Emitting module, two terahertz cameras corresponding with terahertz sources component, conveyer belt and computer, one group of terahertz sources group
Part is arranged in the top of conveyer belt, and corresponding, the terahertz camera for receiving its terahertz signal is arranged in conveyer belt
Lower section；Another group of terahertz sources component is arranged in the side of conveyer belt traffic direction, corresponding, for receiving its terahertz
Hereby the terahertz camera of signal is arranged in the other side of conveyer belt traffic direction, and two terahertz cameras are connect with computer,
Built-in computer has image processing and analyzing module, described image processing module to be used to read the number of two terahertz cameras of analysis
According to, and image is shown on computers.
2. active transmission-type three-dimensional Terahertz wraps up hazardous material detection device according to claim 1, which is characterized in that institute
It states terahertz sources component to be made of THz source, waveguide and collimation Terahertz lens, waveguide is fixed on THz source
The focal position of signal transmitting terminal, collimation Terahertz lens is located at waveguide tube signals output.
3. active transmission-type three-dimensional Terahertz wraps up hazardous material detection device according to claim 2, which is characterized in that institute
It is Fresnel collimation lens to state collimation Terahertz lens, for THz wave to be converted into parallel wave.
4. active transmission-type three-dimensional Terahertz wraps up hazardous material detection device according to claim 3, which is characterized in that luxuriant and rich with fragrance
The working distance of Nie Er collimation lenses is 10mm-100mm, and thickness 10-20mm, visual field is 20-30 °, clear aperature 50-
80cm。
5. active transmission-type three-dimensional Terahertz according to claim 1 or claim 2 wraps up hazardous material detection device, feature exists
In the THz source is 300GHZ-10THZ THz sources.
6. active transmission-type three-dimensional Terahertz according to claim 1 or claim 2 wraps up hazardous material detection device, feature exists
In the conveyer belt is polytetrafluoroethylene (PTFE) material.
7. active transmission-type three-dimensional Terahertz wraps up hazardous material detection device according to claim 6, which is characterized in that institute
It is speed conveyor belt with adjustable to state conveyer belt, and speed adjustable range is 0-1000mm/min.
8. active transmission-type three-dimensional Terahertz wraps up hazardous material detection device according to claim 7, which is characterized in that speed
Degree conveyor belt with adjustable is connect with computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820206939.7U CN207867053U (en) | 2018-02-06 | 2018-02-06 | A kind of active transmission-type three-dimensional Terahertz package hazardous material detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820206939.7U CN207867053U (en) | 2018-02-06 | 2018-02-06 | A kind of active transmission-type three-dimensional Terahertz package hazardous material detection device |
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| Publication Number | Publication Date |
|---|---|
| CN207867053U true CN207867053U (en) | 2018-09-14 |
Family
ID=63457632
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820206939.7U Expired - Fee Related CN207867053U (en) | 2018-02-06 | 2018-02-06 | A kind of active transmission-type three-dimensional Terahertz package hazardous material detection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045349A (en) * | 2019-04-28 | 2019-07-23 | 软通智慧科技有限公司 | A kind of identification method, device, equipment and storage medium |
| CN110146933A (en) * | 2019-05-23 | 2019-08-20 | 深圳市华讯方舟太赫兹科技有限公司 | Terahertz detection system and its detection method |
| CN110146932A (en) * | 2019-05-23 | 2019-08-20 | 深圳市华讯方舟太赫兹科技有限公司 | Terahertz imaging detection device |
| CN110146464A (en) * | 2019-05-30 | 2019-08-20 | 上海理工大学 | A kind of crawler belt safe examination system based on terahertz imaging |
| CN110275219A (en) * | 2019-05-23 | 2019-09-24 | 深圳市华讯方舟太赫兹科技有限公司 | Terahertz imaging detection device |
| CN110386401A (en) * | 2019-07-01 | 2019-10-29 | 广州大学 | A kind of contrast intensifying device applied on a moving belt |
| CN111175840A (en) * | 2020-01-15 | 2020-05-19 | 河南中光学集团有限公司 | Hazardous article security inspection system based on terahertz imaging technology and security inspection method thereof |
-
2018
- 2018-02-06 CN CN201820206939.7U patent/CN207867053U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045349A (en) * | 2019-04-28 | 2019-07-23 | 软通智慧科技有限公司 | A kind of identification method, device, equipment and storage medium |
| CN110146933A (en) * | 2019-05-23 | 2019-08-20 | 深圳市华讯方舟太赫兹科技有限公司 | Terahertz detection system and its detection method |
| CN110146932A (en) * | 2019-05-23 | 2019-08-20 | 深圳市华讯方舟太赫兹科技有限公司 | Terahertz imaging detection device |
| CN110275219A (en) * | 2019-05-23 | 2019-09-24 | 深圳市华讯方舟太赫兹科技有限公司 | Terahertz imaging detection device |
| CN110146464A (en) * | 2019-05-30 | 2019-08-20 | 上海理工大学 | A kind of crawler belt safe examination system based on terahertz imaging |
| CN110386401A (en) * | 2019-07-01 | 2019-10-29 | 广州大学 | A kind of contrast intensifying device applied on a moving belt |
| CN111175840A (en) * | 2020-01-15 | 2020-05-19 | 河南中光学集团有限公司 | Hazardous article security inspection system based on terahertz imaging technology and security inspection method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |