CN206892356U - A kind of Terahertz conveyer belt detecting system - Google Patents
A kind of Terahertz conveyer belt detecting system Download PDFInfo
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- CN206892356U CN206892356U CN201720822674.9U CN201720822674U CN206892356U CN 206892356 U CN206892356 U CN 206892356U CN 201720822674 U CN201720822674 U CN 201720822674U CN 206892356 U CN206892356 U CN 206892356U
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Abstract
The utility model discloses a kind of Terahertz conveyer belt detecting system, including conveyer belt, Terahertz light source, terahertz camera and image processing software；In the detection zone of conveyer belt, Terahertz light source and terahertz camera are set, the thz beam that Terahertz light source is sent is projected on terahertz camera through detection zone, the thz beam of reception is converted into data signal by terahertz camera, and image processing software is passed to, image processing software can generate display image according to data signal.The detecting system make use of the mode that thz beam is imaged, belong to the harmless electromagnetic radiation of low-intensity, without ionising radiation, destruction will not be produced to material, compared with X ray of the prior art, safer more practical, user and operator need not wear safeguard procedures, and system installation is simple easy to use.
Description
Technical field
Field of industry detection is the utility model is related to, in particular it relates to a kind of Terahertz conveyer belt detecting system.
Background technology
Safe examination system is mainly used in public place of the passenger flows such as airport, railway station, passenger station compared with concentration.To ensure each circuit
And the stable and anti-probably anti-terrorism work of website public security is practicable, safe examination system is occurred gradually in each subway station.
In airport, subway and part factory, the current rays safety detection apparatus in Articles detecting mostly uses X ray.When to be checked
For product after x-ray bombardment, the density and atomic number of material are bigger, and the ratio of material absorbing X ray also can be bigger.In food
The composition such as protein, carbohydrate, fat, moisture and bone (calcareous), glass (siliceous), metal and hair is penetrated to X
Line has different contribution ratios.X-ray detection system is exactly to be realized according to above-mentioned principle.
But X ray neutral, when penetrating human body, acted on substance in vivo and produce " secondary ", ionize material,
This phenomenon is referred to as ionising radiation, and ionising radiation is abnormally dangerous, and prolonged low-intensity irradiation can cause changing for inhereditary material
Become, cause the chronic diseases such as cancer, and the ionising radiation of high intensity can murder in virtually.
So X-ray detecting equipment needs to provide substantial amounts of safeguard procedures and avoids ionising radiation from leaking.Operating personnel simultaneously
It is also required to be protected to avoid coming to harm.So the characteristics of brings risk on the other hand to also increase to the use of user to be made
Use cost.
Therefore, a kind of safe and harmless detecting system how is designed, is that the technology that those skilled in the art are badly in need of solving is asked
Topic.
Utility model content
The purpose of this utility model is to provide a kind of Terahertz conveyer belt detecting system, the Terahertz conveyer belt detecting system
The harmless electromagnetic radiation of low-intensity is employed as detection means, there is good practicality and security.
In order to realize above-mentioned technical purpose, the utility model provides a kind of Terahertz conveyer belt detecting system, including passes
Send band, Terahertz light source, terahertz camera and image processing software；In the detection zone of the conveyer belt, the Terahertz is set
Light source and the terahertz camera, the thz beam that the Terahertz light source is sent are projected in described through the detection zone
On terahertz camera, the thz beam of reception is converted into data signal by the terahertz camera, and is passed to described
Image processing software, described image processing software can generate display image according to the data signal.
Optionally, Terahertz light source and the terahertz camera described in two groups are set in the detection zone of the conveyer belt,
First group is horizontally disposed with, and second group is vertically arranged.
Optionally, in the horizontally disposed Terahertz light source and the terahertz camera, the terahertz camera is located at
The side of the conveyer belt, the terahertz camera are located at the opposite side of the conveyer belt, and positioned at the terahertz camera
On center line；In the Terahertz light source being vertically arranged and the terahertz camera, the terahertz camera is located at the biography
The downside of band is sent, the terahertz camera is located at the upside of the conveyer belt, and on the center line of the terahertz camera；
The thz beam that two Terahertz light sources are sent is projected on two terahertz cameras respectively after intersecting.
Optionally, the Terahertz light source and the terahertz camera are fixed in the region to be detected, the biography
Send Tape movement.
Optionally, the Terahertz light source and the terahertz camera are set by travel mechanism, and the travel mechanism can
Relatively described transmission Tape movement.
Optionally, the Terahertz light source includes radio-frequency signal generator, isolator, output port and radiator fan；It is described to penetrate
The light that frequency generator is sent is exported after the isolator by the output port；The radio-frequency signal generator is by avalanche diode system
Into the output port exports for EIA standard-WR- electromagnetic horns.
Optionally, the output port is provided with cylindrical mirror, antenna sector or reflecting surface, the light of the output port output
Turn into suitable with the test surface size of the terahertz camera by the cylindrical mirror, the antenna sector or the reflecting surface
Thz beam.
Optionally, in addition to power module, the power module are powered to the radio-frequency signal generator；The power module
Input as 220V AC voltage, export as 24V, 1.5A constant current.
Optionally, the terahertz camera can carry out high speed detection to the Terahertz information, defeated according to signal intensity
Go out data signal, and the amplified described image that passes to handles software.
Optionally, described image processing software inhouse is provided with gray value, and described image handles software according to the gray value
Generate the display image.
Terahertz conveyer belt detecting system provided by the utility model, including conveyer belt, Terahertz light source, terahertz camera
And image processing software；Terahertz light source and terahertz camera, Terahertz light source is set to send in the detection zone of conveyer belt
Thz beam is projected on terahertz camera through detection zone, and the thz beam of reception is converted into counting by terahertz camera
Word signal, and image processing software is passed to, image processing software can generate display image according to data signal.
During using the detecting system, examined object is placed on a moving belt, object and Terahertz light source on conveyer belt
Being relatively moved with terahertz camera, during by detection zone, the thz beam that Terahertz light source is sent passes through examined object,
Projecting on terahertz camera, the light beam of reception is converted to data signal and passes to image processing software by terahertz camera,
Image processing software can generate display image according to data signal.
The detecting system make use of the method that thz beam is imaged, and belong to the harmless electromagnetic radiation of low-intensity,
Without ionising radiation, destruction, safer more practical compared with X ray of the prior art, Yong Huhe will not be produced to material
Operator need not wear safeguard procedures, and system installation is simple easy to use.Meanwhile thz beam has stronger penetrability
With the strong reflection characteristic to metal material, the high-frequency of Terahertz make it that the resolution ratio of imaging is higher, it is possible to is easy to see
To clothing, the cutter in footwear, firearms and other items are hidden in, the detection accuracy of detecting system is improved.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following
Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.
Fig. 1 is a kind of structural representation of embodiment of Terahertz conveyer belt detecting system provided by the utility model
Figure；
Fig. 2 be Fig. 1 shown in Terahertz conveyer belt detecting system in Terahertz light source structural representation；
Wherein, the corresponding relation between the reference in Fig. 1 and Fig. 2 and component names is as follows：
Conveyer belt 1；Terahertz camera 2；Terahertz light source 3；Object 4；
Isolator 31；Radiofrequency launcher 32；Power module 33.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Fig. 1 and Fig. 2 are refer to, Fig. 1 is that Terahertz conveyer belt detecting system provided by the utility model is a kind of specific real
Apply the structural representation of mode；Fig. 2 be Fig. 1 shown in Terahertz conveyer belt detecting system in Terahertz light source structural representation
Figure.
In a kind of specific embodiment, the utility model provides a kind of Terahertz conveyer belt detecting system, including passes
Send band 1, Terahertz light source 3, terahertz camera 2 and image processing software；In the detection zone of conveyer belt 1, Terahertz light source is set
3 and terahertz camera 2, the thz beam that Terahertz light source 3 is sent be projected in through detection zone on terahertz camera 2, too
The thz beam of reception is converted into data signal by hertz camera 2, and passes to image processing software, image processing software root
Display image can be generated according to data signal.
During using the detecting system, examined object 4 is placed on conveyer belt 1, object 4 and Terahertz light source 3 and terahertz
Hereby camera 2 relatively moves, and when object 4 is by detection zone, the thz beam that Terahertz light source 3 is sent passes through examined object
4, project on terahertz camera 2, the light beam of reception is converted to terahertz camera 2 into data signal and to pass to image procossing soft
Part, image processing software can generate display image according to data signal.
The detecting system make use of the method that thz beam is imaged, and belong to the harmless electromagnetic radiation of low-intensity,
Without ionising radiation, destruction, safer more practical compared with X ray of the prior art, Yong Huhe will not be produced to material
Operator need not wear safeguard procedures, and system installation is simple easy to use.Meanwhile thz beam has stronger penetrability
With the strong reflection characteristic to metal material, the high-frequency of Terahertz make it that the resolution ratio of imaging is higher, it is possible to is easy to see
To clothing, the cutter in footwear, firearms and other items are hidden in, the detection accuracy of detecting system is improved.
In a kind of specific embodiment, two groups of Terahertz light sources 3 and Terahertz phase are set in the detection zone of conveyer belt 1
Machine 2, first group is horizontally disposed with, and second group is vertically arranged.
As shown in figure 1, two Terahertz light sources 3 irradiate examined object 4 from both direction respectively, equivalent to obtaining thing
The projection signal of the both direction of body 4, by the analyzing and processing of the projection signal to both direction, more accurate figure can be obtained
Picture, improve the accuracy rate of detection.
In another embodiment, in horizontally disposed Terahertz light source 3 and terahertz camera 2, terahertz camera 2
Positioned at the side of conveyer belt 2, terahertz camera 2 is located at the opposite side of conveyer belt 1, and on the center line of terahertz camera 2；
In the Terahertz light source 3 and terahertz camera 2 that are vertically arranged, terahertz camera 2 is located at the downside of conveyer belt 1, terahertz camera 2
Positioned at the upside of conveyer belt 1, and on the center line of terahertz camera 2；The thz beam that two Terahertz light sources 3 are sent
It is projected in respectively after intersection on two terahertz cameras 2.
It is as shown in figure 1, to be checked with vertical direction irradiation from horizontal direction respectively in detection zone, two Terahertz light sources 3
Object 4 is surveyed, equivalent to the projection signal for obtaining the both direction of object 4, then image processing software is according to the letter of both direction
The display image of number generation object 4, testing staff can judge whether object to be detected 4 is qualified by image.
Further, the thz beam that two Terahertz light sources 3 are sent is projected in two Terahertz phases respectively after intersecting
On machine 2.
In two beam thz beam crossover process, it will not influence each other, all object 4 is irradiated in detection zone, together
When obtain both direction signal.
In a kind of preferred embodiment, Terahertz light source 3 and terahertz camera 2 are fixed in region to be detected, pass
Band 1 is sent to move.
During being detected to object 4, object 4 can be placed on conveyer belt 1, the movement of conveyer belt 1 drives
Object 4 moves through detection zone, and during by detection zone, Terahertz light source 3 and terahertz camera 2 can obtain object 4
Whether projection information, judgment object are qualified.
In another preferred embodiment, Terahertz light source 3 and terahertz camera 2 are set by travel mechanism, mobile
Mechanism can move relative to conveyer belt 1.
In detection process, can also object 4 it is motionless, Terahertz light source 3 and terahertz camera 2 move, and the two passes through movement
Mechanism is set, and is internally formed detection zone in travel mechanism, detection zone moves with the movement of travel mechanism.During detection,
Object 4 is placed on the upper conveyor belt 1 of conveyer belt 1 and can moved, and can not also move, and travel mechanism's movement can be carried out to object 4
Detection.
In above-mentioned each specific embodiment, Terahertz light source 3 includes radio-frequency signal generator 32, isolator 31 and output end
Mouthful；The light that radio-frequency signal generator 32 is sent is exported after isolator 31 by output port；Radio-frequency signal generator 32 is by avalanche diode system
Into radio-frequency signal generator 32 is additionally provided with radiator fan；Output port exports for EIA standard-WR- electromagnetic horns.
The light that radio-frequency signal generator 32 is sent is exported after isolator 31 by output port, and isolator being capable of blocking reflected letter
Number input, avoid the damage of reflected light and veiling glare to radio-frequency signal generator.
Impact ionization of the avalanche diode application photo-generated carrier in diode depletion layer and obtain photoelectric current
Avalanche multiplication, there is compact structure, sensitive, quick, suitable for the detection and reception of faint optical signal.Pass through setting
Radiator fan is that radio-frequency signal generator 32 radiates, and ensures the reliability of work.
Further, output port exports for EIA standard-WR- electromagnetic horns, meets international standard, has well simultaneous
Capacitive.
In another specific embodiment, output port is provided with cylindrical mirror, antenna sector or reflecting surface, the output
The light of port output turns into the test surface size with the terahertz camera by the cylindrical mirror, antenna sector or reflecting surface
Suitable thz beam.
Cylindrical mirror is non-spherical lens, can effectively reduce spherical aberration and aberration, has enlarging function.Cylindrical mirror can also change
Become the size of imaging.
Specifically, also including power module 33, power module 33 is powered to radio-frequency signal generator 32；The input of power module 33
For 220V AC voltage, export as 24V, 1.5A constant current.
In above-mentioned each specific embodiment, terahertz camera 2 can carry out high speed detection to Terahertz information, according to
Signal intensity output digit signals, and amplified pass to image processing software.
Terahertz camera 2 is the high-sensitivity camera based on Terahertz Technology, can receive the varying strength for penetrating object
Thz beam, and carry out the last output digit signals of high speed analog-to-digital conversion.
Terahertz camera 2 is fabricated by CMOS technology, and it is strong according to signal to carry out high speed detection to input terahertz signal
Degree output digit signals are exported to image processing software after amplification again.
Be provided with gray value in above-mentioned each specific embodiment, inside image processing software, image processing software according to
Gray value generates display image.
Image software carries out high speed image generation and optimization most after data signal is received, according to default gray value
The picture for being up to 5000 width per second is provided eventually.Image processing software can be shown to the data signal for obtaining camera acquisition, be excellent
Change, screening.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model and used exemplary
Embodiment, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality
With new protection domain.
Claims (10)
- A kind of 1. Terahertz conveyer belt detecting system, it is characterised in that including conveyer belt, Terahertz light source, terahertz camera and Image processing software；In the detection zone of the conveyer belt, the Terahertz light source and the terahertz camera be set, it is described too The thz beam that hertz light source is sent is projected on the terahertz camera through the detection zone, the terahertz camera The thz beam of reception is converted into data signal, and passes to described image processing software, described image processing is soft Part can generate display image according to the data signal.
- 2. Terahertz conveyer belt detecting system as claimed in claim 1, it is characterised in that in the detection zone of the conveyer belt Terahertz light source described in two groups and the terahertz camera are set, and first group is horizontally disposed with, and second group is vertically arranged.
- 3. Terahertz conveyer belt detecting system as claimed in claim 2, it is characterised in that the horizontally disposed terahertz light In source and the terahertz camera, the terahertz camera is located at the side of the conveyer belt, and the terahertz camera is located at institute The opposite side of conveyer belt is stated, and on the center line of the terahertz camera；The Terahertz light source being vertically arranged and institute State in terahertz camera, the terahertz camera is located at the downside of the conveyer belt, and the terahertz camera is located at the transmission The upside of band, and on the center line of the terahertz camera；The terahertz light that two Terahertz light sources are sent Beam is projected on two terahertz cameras respectively after intersecting.
- 4. Terahertz conveyer belt detecting system as claimed in claim 3, it is characterised in that the Terahertz light source and it is described too Hertz camera is fixed in the region to be detected, the transmission Tape movement.
- 5. Terahertz conveyer belt detecting system as claimed in claim 3, it is characterised in that the Terahertz light source and it is described too Hertz camera is set by travel mechanism, and the travel mechanism can relatively described transmission Tape movement.
- 6. the Terahertz conveyer belt detecting system as described in any one of claim 1 to 5, it is characterised in that the terahertz light Source includes radio-frequency signal generator, isolator, output port and radiator fan；The light that the radio-frequency signal generator is sent is through the isolator Exported afterwards by the output port；The radio-frequency signal generator is made up of avalanche diode, and the output port is EIA standards-WR- Electromagnetic horn exports.
- 7. Terahertz conveyer belt detecting system as claimed in claim 6, it is characterised in that the output port is provided with cylinder Mirror, antenna sector or reflecting surface, the light of the output port output is by the cylindrical mirror, the antenna sector or described Reflecting surface turns into the thz beam suitable with the test surface size of the terahertz camera.
- 8. Terahertz conveyer belt detecting system as claimed in claim 7, it is characterised in that also including power module, the electricity Source module is powered to the radio-frequency signal generator；The input of the power module is 220V AC voltage, is exported as 24V, 1.5A's Constant current.
- 9. the Terahertz conveyer belt detecting system as described in any one of claim 1 to 5, it is characterised in that the Terahertz phase Machine can carry out high speed detection to the Terahertz information, according to signal intensity output digit signals, and amplified transmission Software is handled to described image.
- 10. the Terahertz conveyer belt detecting system as described in any one of claim 1 to 5, it is characterised in that described image processing Software inhouse is provided with gray value, and described image handles software and generates the display image according to the gray value.
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| CN201720822674.9U CN206892356U (en) | 2017-07-07 | 2017-07-07 | A kind of Terahertz conveyer belt detecting system |
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| CN201720822674.9U CN206892356U (en) | 2017-07-07 | 2017-07-07 | A kind of Terahertz conveyer belt detecting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193051A (en) * | 2017-07-07 | 2017-09-22 | 深圳翠博微系统有限公司 | A kind of Terahertz conveyer belt detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193051A (en) * | 2017-07-07 | 2017-09-22 | 深圳翠博微系统有限公司 | A kind of Terahertz conveyer belt detecting system |
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