CN209327243U - A kind of detection device of balancing disk equilibrium X-ray field strength - Google Patents
A kind of detection device of balancing disk equilibrium X-ray field strength Download PDFInfo
- Publication number
- CN209327243U CN209327243U CN201821775957.3U CN201821775957U CN209327243U CN 209327243 U CN209327243 U CN 209327243U CN 201821775957 U CN201821775957 U CN 201821775957U CN 209327243 U CN209327243 U CN 209327243U
- Authority
- CN
- China
- Prior art keywords
- balancing disk
- ray
- detection device
- detection
- measured object
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of detection devices of balanced X-ray detection zonal ray field strength, belong to industrial X-ray detection device technical field.The balancing disk of setting can preferably solve the problems, such as that wide detection zone internal X-ray intensity is non-uniform.The thickness of the balancing disk of the utility model is stepped variation, the device that X-ray detection in the tobacco leaf production is improved using the balancing disk is solved the problems, such as ropy to the progress continuous-flow type consecutive image fringe region detection of the raw material of cigarette such as tobacco leaf and/or offal is continuously conveyed using the belt for conveying measured object in tobacco leaf production.
Description
Technical field
The utility model discloses a kind of detection devices of balancing disk equilibrium X-ray field strength, belong to industrial X-ray detection dress
Set technical field.
Background technique
As the application of X-ray detection technology in modern production is increasingly extensive, the requirement to X-ray detection precision is also got over
Come it is higher, however it is non-uniform by the big angle of departure of design feature bring of X-ray tube itself, wide detection zone inner rays intensity
Problem, so that with when substance, under the conditions of there is same transmitted intensity, the inspection of fringe region is more leaned in X-ray detection large area
The case where altimetric image quality is poorer, and even guarantee regional area detects quality, and other regions can only abandon detection.
For example, the raw material of cigarette such as tobacco leaf and/or offal are continuously conveyed to the belt using conveying measured object in tobacco leaf production
The device for carrying out the detection of continuous-flow type consecutive image is mostly the device carried out non-destructive testing using X-ray detection technology.Due to existing
Reason as previously described under the conditions of detection device also will appear same transmitted intensity, more leans on the detection image quality of fringe region
It is poorer, seriously affect detection quality.
Summary of the invention
The utility model is in view of the above-mentioned problems, propose a kind of by setting balancing disk equilibrium X-ray detection zonal ray field
It is non-uniform can preferably to solve wide detection zone internal X-ray intensity with this method setting balancing disk for strong method and balancing disk
Problem；The utility model also proposed a kind of dress that X-ray detection in the tobacco leaf production is improved using the balancing disk
It sets.
The non-uniform mathematical model of X-ray intensity is derived according to the launch angle of X-ray tube and space layout first.So
Afterwards according to the fading characteristics of transmitted intensity after X-ray penetrating material, the balancing disk of design kind thickness change, so that through balancing disk
X-ray intensity basically reach unanimously.
The utility model uses following technical scheme:
1. a kind of method of equilibrium X-ray detection zonal ray field strength, it is characterised in that:
1. X-ray intensity reaches the relational expression of the attenuation ratio at different distance E1, E2 in air are as follows:
KL=E2/E1 (1)
Wherein: E1 is set as the tested plane domain in 0 ° of position and corresponds to ray beam intensity, and E2 is set as β ° of position and is tested plane domain
Corresponding ray beam intensity, then KLFor 0 ° and the attenuation coefficient of β ° of ray；
2. L1 is set as the X-ray tube of 0 ° of position to the distance of detected plane, L2 is set as the X-ray tube of β ° of position to being visited
Survey the distance of plane, KL=(L1/L2)2；
3. attenuation relation formula of the X-ray intensity after penetration thickness is the balanced plate of H are as follows:
UH=e-u×ρ×H (2)
Wherein: μ is the mass attentuation coefficient for penetrating the X-ray of high balancing disk, and ρ is the density of the balancing disk penetrated, and H is to wear
The thickness of saturating balancing disk；
4. enabling UHThe thickness of balancing disk is calculated in=E2/E1:
H=-Ln ((L1/L2)2/ρμ (3)
Above-mentioned formula (1), (2 and (3) in, the unit of relevant parameter are as follows:
E2, E1:J, KL、UH: dimensionless, u:cm2/g, ρ: g/cm3, H:cm.
The value of thickness H at the different angles of divergence can be calculated according to formula (3).
A kind of 2 balancing disks being arranged according to the method for balanced X-ray detection zonal ray field strength, it is characterised in that:
According to the method for the balancing disk equilibrium X-ray detection zonal ray field strength, the thickness of setting balancing disk is calculated
Degree is to be arranged balancing disk；
To be easy to process, the X-ray in certain variation angle can be considered as same intensity according to actual needs by us, be calculated
And it produces thickness and is stepped the balancing disk of variation.
The device of balanced X-ray field strength in a kind of 3 tobacco detection devices, including X-ray tube, collimator, conveying measured object
Belt and X-ray detector, it is characterised in that: further include balancing disk and balanced board mounting stand, the balancing disk is fixed on institute
State the top of balanced board mounting stand；The equilibrium board mounting stand is located at the lower section of the belt of the conveying measured object, is fixedly mounted
On the outer framework of described device and measured object, which is maintained, between the belt of the conveying measured object passes through space.
The balancing disk designed using the method for the balanced field strength of the utility model is installed in x-ray detection device, is solved
It has determined and the raw material of cigarette such as tobacco leaf and/or offal are continuously conveyed to the belt using conveying measured object in tobacco leaf production have carried out continuous-flow type
The fringe region of the x-ray detection device of consecutive image detection detects ropy problem.
Detailed description of the invention
Fig. 1 is that the uneven model schematic of radiation profile is derived in the utility model；
Fig. 2 is the structural schematic diagram of balancing disk described in the utility model；
Fig. 3 is the overlooking structure diagram of balancing disk described in the utility model；
Fig. 4 is the structure diagram of detection device described in the utility model for being mounted with balancing disk；
Fig. 5 is the detection device sectional view described in the utility model for being mounted with balancing disk.
In figure: 1--X ray tube；2-- collimator；The belt of 3-- conveying measured object；
4-- equilibrium board mounting stand；5--X ray detector；
6-- measured object passes through space；7-- balancing disk；8-- device housing frame.
Specific embodiment
It elaborates with reference to the accompanying drawing to the composition of the utility model and feature.
It can be seen that, with the variation of launch angle, irradiation distance is become from L1 as L2 from attached drawing 1.
Following radiation attenuation relational expression can be obtained according to X-ray intensity attenuation law:
KL=E2/E1 (1)
Wherein: E1 is set as the tested plane domain in 0 ° of position and corresponds to ray beam intensity, and E2 is set as β ° of position and is tested plane domain
Corresponding ray beam intensity, then KLFor 0 ° and the attenuation coefficient of β ° of ray；
2. L1 is set as the X-ray tube of 0 ° of position to the distance of detected plane, L2 is set as the X-ray tube of β ° of position to being visited
Survey the distance of plane, KL=(L1/L2)2；
3. attenuation relation formula of the X-ray intensity after penetration thickness is the balanced plate of H are as follows:
UH=e-u×ρ×H (2)
Wherein: μ is the mass attentuation coefficient for penetrating the X-ray of high balancing disk, and ρ is the density of the balancing disk penetrated, and H is to wear
The thickness of saturating balancing disk；
(1), (2) formula are associated, after X-ray tube and determining balanced plate material, the μ and ρ in (2) formula are also just true
It is fixed.The value of thickness H at the different angles of divergence can be calculated according to joint type；
4. enabling UHThe thickness of balancing disk is calculated in=E2/E1:
H=-Ln ((L1/L2)2/ρμ (3)
Above-mentioned formula (1), (2 and (3) in, the unit of relevant parameter are as follows:
E2, E1:J, KL、UH: dimensionless, u:cm2/ g, ρ: g/cm3, H:cm.
To be easy to process, the X-ray in certain variation angle can be considered as same intensity according to actual needs by us, such as be schemed
A ° of corresponding irradiated area S1 inner rays intensity is considered as shown in 1 identical, corresponds on balancing disk, then can adopt as shown in Fig. 2
The mode being layering with interval S distance is covered or is bonded, the production of laminating technology realization balancing disk by crossing.
For example, can be embodied as follows:
Such as to angle of departure β=± 50 °, the X-ray apparatus of E=50J detecting distance L1=30cm carries out detection range intensity
It is balanced.To simplify the calculation, only consider the case where monochromatic narrow beam X-ray here.
Assuming that according to specific detection effect needs, the transmitted intensity within the scope of а=5 ° is considered as essentially identical, we are by Β
Angle is divided into 5 intensity areas from 0 °~50 °, carries out subregion intensity equalization (μ=0.367cm2/g, ρ=2.7g/ with aluminium
cm3)。
Calculated result is as shown in table 1.
As can be seen from Table 1, the balancing disk thickness value of the decaying of uncompensation distance required for each launch angle of X-ray.Cause
It is not linear for changing bring distance change for launch angle, so calculated balancing disk thickness change is not yet
It is linear.For the ease of engineering application, we take the average value 0.2cm of thickness change increment, every chip equalization plate
Length incrementss correspond to 10 ° of transmitting angular region S ≈ 5.3cm.
The balancing disk thickness value of the decaying of uncompensation distance required for each launch angle of 1 X-ray of table
According to the parameter being calculated above, we can produce the balancing disk of stairstepping variation.We can be with
Optimize practical portfolio effect by increasing transmitted intensity segments.
According to actual needs, the X-ray in a ° of angle is projected into tested plane domain irradiated area SiInternal X-ray decaying view
It is identical and setting with a thickness of HiBalancing disk, with a ° of H balancing disk in need for incremental computations from β ° to 0 °, using layer
Balancing disk is arranged in the vertical view of layer superposition such as stair shape balancing disk ° mode constantly thickeied from β ° to 0.
Further, balancing disk is arranged by the way of constantly thickening to be realized by bonding and/or laminating technology mode
The production of weighing apparatus plate.
X-ray tube and balanced plate material in the present embodiment need to determine that the material of balancing disk selects according to the actual application
Selecting need to determine according to the strength grade of X-ray tube, the structure size of X-ray apparatus and workability.
Aluminium sheet may be selected in the material of balancing disk in the present embodiment.
To be easy to process, the X-ray in certain variation angle can be considered as same intensity according to actual needs by us, be calculated
And it produces thickness and is stepped the balancing disk of variation.
Balancing disk in the present embodiment it is mountable between X-ray tube and measured object or measured object and X-ray detector it
Between.
Balancing disk in the present embodiment is as shown in Figure 4 and Figure 5, is mounted between measured object and X-ray detector, but can also
It is mounted between X-ray tube and measured object as needed.For example, may be constructed balanced X-ray field in a kind of tobacco detection device
Strong detection device, including X-ray tube, collimator, the belt and X-ray detector for conveying measured object, it is characterised in that: also wrap
Balancing disk and balanced board mounting stand are included, the balancing disk is fixed on the top of the balanced board mounting stand；The balancing disk installation
Frame be located at the lower section of the belt of the conveying measured object, be fixedly mounted on described device outer framework and with the conveying measured object
Measured object is maintained between belt passes through space；The balancing disk, balanced board mounting stand convey the belt of measured object in horizontal plane
It in parallel, can also be according to the parastate with Horizon at an angle.
The utility model is not limited to above embodiment, anyone structure made under the enlightenment of the utility model becomes
Change or improves, it is all that there is same or similar technical solution with the utility model, it is within the protection scope of the present utility model.
Claims (6)
1. a kind of detection device of equilibrium X-ray detection zonal ray field strength, including X-ray tube (1), collimator (2), conveying quilt
Survey object belt (3) and X-ray detector (5), it is characterised in that: further include balancing disk (7) and equilibrium board mounting stand (4),
The balancing disk (7) is fixed on the top of the balanced board mounting stand (4)；The equilibrium board mounting stand (4) is located at the conveying
The lower section of the belt (3) of measured object is fixedly mounted on described device outer framework (8) and the belt (3) with the conveying measured object
Between maintain measured object by space (6).
2. detection device according to claim 1, it is characterised in that: the balancing disk (7), balanced board mounting stand (4), defeated
Send belt (3) band of measured object in horizontal plane in parallel or according to the parastate with Horizon at an angle.
3. detection device according to claim 1, it is characterised in that: balancing disk (7) thickness and the X-ray tube
(1) it generates and the field strength for being radiated the position is proportional.
4. detection device according to claim 3, it is characterised in that: the mode of the balancing disk (7) constantly thickeied is set
Setting balancing disk is the production that balancing disk (7) are realized by bonding and/or laminating technology mode.
5. detection device according to claim 1 or 2 or 3 or 4, it is characterised in that: the material of the balancing disk (7) selects
It need to be determined according to the strength grade of X-ray tube, the structure size of X-ray apparatus and workability.
6. detection device according to claim 5, it is characterised in that: the material of the balancing disk (7) selects aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775957.3U CN209327243U (en) | 2018-10-30 | 2018-10-30 | A kind of detection device of balancing disk equilibrium X-ray field strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775957.3U CN209327243U (en) | 2018-10-30 | 2018-10-30 | A kind of detection device of balancing disk equilibrium X-ray field strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209327243U true CN209327243U (en) | 2019-08-30 |
Family
ID=67708992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821775957.3U Active CN209327243U (en) | 2018-10-30 | 2018-10-30 | A kind of detection device of balancing disk equilibrium X-ray field strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209327243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444181A (en) * | 2018-10-30 | 2019-03-08 | 云南昆船设计研究院有限公司 | A kind of method and balancing disk of equilibrium X-ray detection zonal ray field strength |
-
2018
- 2018-10-30 CN CN201821775957.3U patent/CN209327243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444181A (en) * | 2018-10-30 | 2019-03-08 | 云南昆船设计研究院有限公司 | A kind of method and balancing disk of equilibrium X-ray detection zonal ray field strength |
| CN109444181B (en) * | 2018-10-30 | 2024-02-06 | 云南昆船设计研究院有限公司 | Method for balancing X-ray detection area ray field intensity and balancing plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209327243U (en) | A kind of detection device of balancing disk equilibrium X-ray field strength | |
| US20210349234A1 (en) | Detecting Anomalies in Annular Materials of Single and Dual Casing String Environments | |
| ITTO20070168A1 (en) | DETECTOR DETECTOR AND DEVICE USING THE SAME, IN PARTICULAR FOR RADIATION DETECTION | |
| US3373286A (en) | Device for measuring the characteristics of a material moving on a conveyor with means for minimizing the effect of flutter | |
| GB2427340A (en) | Method and system for detecting substances, such as special nuclear materials | |
| CN108458763B (en) | Novel multiphase flowmeter based on horizontal pipeline and detection method | |
| CN109444181A (en) | A kind of method and balancing disk of equilibrium X-ray detection zonal ray field strength | |
| US10508453B2 (en) | Sound-absorbing element and system | |
| CN104697891B (en) | Radiometric Density Distribution measuring system and method and application | |
| US3754138A (en) | Inner layer position measurement | |
| EP0489114A1 (en) | Method and instrument for nonlinear averaging compensated measurements | |
| CA1118538A (en) | Device for examining a body by means of penetrating radiation | |
| CN216284786U (en) | Density and concentration detection device | |
| CN110763312B (en) | X-ray high-precision weight detecting device with metal detection function | |
| DK200100644A (en) | System and method for measuring layer thicknesses of a multilayer tube | |
| CN208140036U (en) | A kind of multilayer film On-line gauging system | |
| CN104897702B (en) | A kind of small diameter tube banjo fixing butt jointing gamma ray detection special tooling | |
| JPH08322537A (en) | Density measuring instrument for double cigarette continuum manufacturing machine in tobacco manufacture industry | |
| CN107085243B (en) | A kind of measuring method and drawing formation system of filling-in field strength | |
| EP3964823A1 (en) | A device for testing a flat plate-shaped material | |
| US6526119B1 (en) | Method and arrangement for determining the moisture content of wood chips | |
| Forgues et al. | Benefits of hydrophones for land seismic monitoring | |
| CN108195760A (en) | A kind of shade judged online for small ball-shape fruit internal quality | |
| CN202351187U (en) | Rubber belt flaw detection device with double radiation sources | |
| Cinar et al. | Evaluation of environmental factors affecting noise propagation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |