CN205656320U - Passageway formula hazardous liquid detection device - Google Patents
Passageway formula hazardous liquid detection device Download PDFInfo
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- CN205656320U CN205656320U CN201620508974.5U CN201620508974U CN205656320U CN 205656320 U CN205656320 U CN 205656320U CN 201620508974 U CN201620508974 U CN 201620508974U CN 205656320 U CN205656320 U CN 205656320U
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Abstract
The utility model relates to a passageway formula hazardous liquid detection device. The device is including perspective scanning detecting device, sharp tomoscan detecting device and processing and the control unit. Acquire the perspective view of liquid in the container on the conveyer belt by perspective scanning detecting device, acquire the tomoscan data of liquid in the container by sharp tomoscan detecting device, it is right by handling with the control unit the projection data of data rearrangement and the interior liquid of data compensation acquisition container is carried out to straight line tomoscan data, adopts dual intensity reconstruction algorithm to rebuild the faultage image of a certain position of liquid to calculate height, mentally deficient attenuation coefficient, effective atomic number and electron density, whether be hazardous liquid through liquid in carrying out these four indexs and threshold value in comparison judgement container. The utility model discloses detection device can survey in succession, and the detector is with low costs, compensates through the projection data to the disappearance to judge according to four indexs whether liquid is hazardous liquid, has improved hazardous liquid's recognition accuracy.
Description
Technical field
This utility model belongs to dangerous materials safety inspection technical field, relates to a kind of channel-type dangerous liquid detection device.
Background technology
Dangerous liquid Detection Techniques include X-ray detection technology, neutron detection technology, electromagnetic surveying technology and steam traces detection
Technology etc..But, owing to the monopolizing characteristic of liquid makes it detect, there is higher difficulty and complexity, such as many dangerous liquids
Physical attribute and routine safety liquid very close to, this necessarily increases the difficulty of liquid detection.
Common liquid is packaged in a sealing container, and fluid molecule is difficult to evaporate into outside packaging, uses steam traces to visit
During survey technology detection liquid, it usually needs corkage detection, add the operation easier of detection.Therefore steam traces Detection Techniques are also
It is not suitable for sealing the detection of liquid.And neutron detection technology is little in public affairs at present due to the reason such as equipment manufacturing cost, NEUTRON PROTECTION
The actual application in place altogether.Electromagnetic surveying technology is the technology that liquid detecting devices in the market is conventional, as by dielectric tomography
The characteristic electron (dielectric constant and conductivity) of technology detection liquid；By conductivity, the molecular polarity of microwave sounding liquid；
The content etc. of conventional liquid explosives raw material hydrogen peroxide is detected by near infrared technology.But usual the said equipment can only detect and mould
The liquid of material container packaging, the liquid for high density container package detects the most helpless.
Utilize x-ray ct technology to carry out liquid detection can the geometry of detected material be judged, in conjunction with X-ray
The parameters such as the linear attenuation coefficient of detected material, equivalent atom ordinal number, electron density can be detected by attenuation theory.With
Fang Wei has had product model machine depending on company and the First Research Institute of Ministry of Public Security and has declared respective patent respectively.But this kind of set
For being three generations's CT scan pattern based on industry CT, system operation needs artificial being put into by liquid to detect storehouse, after detection
Also need to manually take out liquid, operation complexity, it is impossible to continuous detecting, inefficiency from detection storehouse.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of for identifying dangerous liquid in container
Channel-type dangerous liquid detection device, utilizes the symmetric information of container to compensate the tomographic data of liquid, then rebuilds
Faultage image, thus realize the identification of dangerous liquid.
For reaching above-mentioned purpose, this utility model adopts the following technical scheme that
A kind of channel-type dangerous liquid detection device, including perspective scanning probe device, straight fault scanning probe device and process
With control unit.Described perspective scanning probe device includes perspective scanning x-ray source and perspective scan detector, is used for obtaining biography
Send the perspective view of liquid in band upper container；Described straight fault scanning probe device includes straight fault scanning x-ray source and straight line
Tomoscan detector, for obtaining the straight fault scan data of described liquid in container.Described process and control unit are to institute
State straight fault scan data and carry out data rearrangement and the data for projection of compensation data acquisition liquid in container, rebuild a certain position of liquid
The faultage image put thus the identification realizing dangerous liquid.Described process and control unit also export control signal and control described perspective
Scanning probe device, straight fault scanning probe device and the operation of conveyer belt.
Described perspective scan detector is by the linear array of multiple probe unit gaplesss arrangement；Described straight fault scanning probe
Device is the spacing being arranged in by the multiple probe units linear array more than 1 centimetre.
Further, described perspective scan detector is linear type, L-type, U-shaped or curved line array detector.
Further, the orientation of the probe unit of described perspective scan detector and the spy of described straight fault scan detector
The orientation surveying unit spatially becomes an angle of 90 degrees.
Further, described perspective scan detector is monoenergetic detector or dual intensity sandwich detectors；
Further, described straight fault scan detector is dual intensity sandwich detectors or photon counting detector.
Further, described detection device also include being connected with control unit with described process for showing fluoroscopy images and tomography
The display unit of image.
Compared with prior art, this utility model has the advantages that
The channel-type dangerous liquid detection device that the utility model proposes includes having an X-rayed scanning probe device, straight fault scanning probe
Device and process and control unit.The perspective view of the liquid in container on conveyer belt is obtained, by straight line by perspective scanning probe device
Tomoscan detection device obtains the tomographic data of liquid in container, is scanned described straight fault with control unit by processing
Data carry out data rearrangement and the data for projection of compensation data acquisition liquid in container, use dual intensity algorithm for reconstructing to rebuild liquid a certain
The faultage image of position, according to numerical computations high mental retardation attenuation quotient, effective atomic number and the electron density of image, by inciting somebody to action
The threshold value of these four indexs and setting compares and judges whether liquid in container is dangerous liquid.This detection device can carry out height
The continuous probe of efficiency；Detector due to straight fault scanning probe device uses the linear array detector group of sparse arrangement, therefore
This utility model can effectively reduce detector cost；This utility model uses perspective scanning probe device, it is simple to observe in container
The internal structural information of liquid；It addition, this utility model is compensated by the data for projection lacking liquid in container, and
Judge whether liquid is dangerous liquid, significantly according to high and low energy attenuation quotient, effective atomic number and four indexs of electron density
Improve the accuracy of identification of dangerous liquid.
Accompanying drawing explanation
Fig. 1 is the structural representation of the described detection device that this utility model embodiment relates to；
Fig. 2 is the arrangement schematic diagram of probe unit in straight fault scan detector.
In figure: 1-has an X-rayed scanning probe device, and 11-perspective scanning x-ray source, 12-has an X-rayed scan detector, and 2-straight fault is swept
Retouching detection device, 21-straight fault scanning x-ray source, 22-straight fault scan detector, 3-processes and control unit, 4-
Display unit, 5-container, 6-conveyer belt.
Detailed description of the invention
With embodiment, this utility model is described further below in conjunction with the accompanying drawings.
A kind of channel-type dangerous liquid detection device, as shown in Figure 1, 2, sweeps including perspective scanning probe device 1, straight fault
Retouch detection device 2 and process and control unit 3.Described perspective scanning probe device 1 includes that perspective scanning x-ray source 11 is with saturating
Depending on scan detector 12, the perspective view of liquid in obtaining conveyer belt 6 upper container 5；Described straight fault scanning probe device
2 include straight fault scanning x-ray source 21 and straight fault scan detector 22, liquid in obtaining described container 5
Straight fault scan data.Described process and control unit 3 carry out data rearrangement to described straight fault scan data and data are mended
Repay the data for projection obtaining liquid in container, rebuild the faultage image of a certain position of liquid thus realize the identification of dangerous liquid.Institute
State process and also export control signal control described perspective scanning probe device 1, straight fault scanning probe device 2 with control unit 3
Operation with conveyer belt 6.Described perspective scan detector 12 is by the linear array of multiple probe unit gaplesss arrangement；Described
Straight fault scan detector 22 is the spacing being arranged in by the multiple probe units line Sparse Array more than 1 centimetre, as shown in Figure 2.
Use the linear array of sparse arrangement, it is possible to reduce the quantity of detector, thus effectively reduce the energy consumption of detector and the cost of device.
Described perspective scan detector 12 is linear type, L-type, U-shaped or curved line array detector.Perspective scanning in Fig. 2 is visited
Survey device 12 and use L-type.
The orientation of the probe unit of described perspective scan detector 12 and the detection list of described straight fault scan detector 22
The row orientation of unit spatially becomes an angle of 90 degrees.As shown in Figure 2.
Described perspective scan detector 12 is monoenergetic detector or dual intensity sandwich detectors.Dual intensity sandwich detectors includes that high energy detects
Device and mental retardation detector, be provided with layer of metal sheet, generally copper sheet between high energy detector and mental retardation detector, pass through metal
The filtration of sheet makes high mental retardation detector receive the ray of different-energy.
Described straight fault scan detector 22 is dual intensity sandwich detectors or photon counting detector.Photon counting detector passes through
The photon counting of different-energy is implemented as picture, the photon of different-energy section can be differentiated and count, there is the strongest energy
Resolution capability.Its deficiency is to be difficult to ensure that by parameter restriction signal to noise ratios such as counting rates.Dual intensity sandwich detectors can be by once sweeping
Retouch and realize dual-energy imaging, but energy spectrum region indexing is not as good as photon technology detector.
Described detection device also includes the display unit 4 being connected with described process with control unit 3.Display unit 4 is used for showing
Fluoroscopy images and faultage image.
This utility model is not limited to above-mentioned embodiment, and it is any aobvious and easy to above-mentioned embodiment that those skilled in the art are made
The improvement seen or change, all without the protection domain beyond design of the present utility model and claims.
Claims (6)
1. a channel-type dangerous liquid detection device, it is characterised in that include having an X-rayed scanning probe device, straight fault scanning
Detect device and process and control unit；Described perspective scanning probe device includes perspective scanning x-ray source and perspective scanning probe
Device, the perspective view of liquid in obtaining conveyer belt upper container；Described straight fault scanning probe device includes that straight fault scans
X-ray source and straight fault scan detector, for obtaining the straight fault scan data of described liquid in container；Described process
With control unit described straight fault scan data carried out data rearrangement and compensation data obtains the data for projection of liquid in container,
Rebuild the faultage image of a certain position of liquid thus realize the identification of dangerous liquid；Described process also exports control letter with control unit
Number control described perspective scanning probe device, straight fault scanning probe device and the operation of conveyer belt；
Described perspective scan detector is by the linear array of multiple probe unit gaplesss arrangement；Described straight fault scanning probe
Device is the spacing being arranged in by the multiple probe units linear array more than 1 centimetre.
Channel-type dangerous liquid the most according to claim 1 detection device, it is characterised in that described perspective scan detector
For linear type, L-type, U-shaped or curved line array detector.
Channel-type dangerous liquid the most according to claim 1 detection device, it is characterised in that described perspective scan detector
The orientation of probe unit spatially become 90 degree with the orientation of the probe unit of described straight fault scan detector
Angle.
Channel-type dangerous liquid the most according to claim 1 detection device, it is characterised in that described perspective scan detector
For monoenergetic detector or dual intensity sandwich detectors.
Channel-type dangerous liquid the most according to claim 1 detection device, it is characterised in that the scanning of described straight fault is visited
Surveying device is dual intensity sandwich detectors or photon counting detector.
6. detect device according to the channel-type dangerous liquid described in Claims 1 to 5 any one, it is characterised in that described detection
Device also includes the display unit for showing fluoroscopy images and faultage image being connected with described process with control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620508974.5U CN205656320U (en) | 2016-05-30 | 2016-05-30 | Passageway formula hazardous liquid detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620508974.5U CN205656320U (en) | 2016-05-30 | 2016-05-30 | Passageway formula hazardous liquid detection device |
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| Publication Number | Publication Date |
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| CN205656320U true CN205656320U (en) | 2016-10-19 |
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| CN201620508974.5U Active CN205656320U (en) | 2016-05-30 | 2016-05-30 | Passageway formula hazardous liquid detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911604A (en) * | 2016-05-30 | 2016-08-31 | 公安部第研究所 | Channel-type dangerous liquid detection device and channel-type dangerous liquid detection method |
| CN110764156A (en) * | 2019-11-11 | 2020-02-07 | 中国原子能科学研究院 | Suspicious object detection device |
-
2016
- 2016-05-30 CN CN201620508974.5U patent/CN205656320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911604A (en) * | 2016-05-30 | 2016-08-31 | 公安部第研究所 | Channel-type dangerous liquid detection device and channel-type dangerous liquid detection method |
| CN110764156A (en) * | 2019-11-11 | 2020-02-07 | 中国原子能科学研究院 | Suspicious object detection device |
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