CN109164116A - A kind of control system for industry CT detection system - Google Patents
A kind of control system for industry CT detection system Download PDFInfo
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- CN109164116A CN109164116A CN201810838187.0A CN201810838187A CN109164116A CN 109164116 A CN109164116 A CN 109164116A CN 201810838187 A CN201810838187 A CN 201810838187A CN 109164116 A CN109164116 A CN 109164116A
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- detector
- control unit
- accelerator
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/03—Investigating materials by wave or particle radiation by transmission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
Abstract
The invention discloses a kind of control systems for industry CT detection system, it is used to control industry CT detection system, control system includes Accelerator control unit, detector control unit, scan control unit and image reconstruction unit, Accelerator control unit, detector control unit, scan control unit is connect with image reconstruction unit signal, Accelerator control unit is used to control the operating status of accelerator, detector control unit is used to control the operating status of detector, scan control unit is used to automatically control accelerator according to the parameter of user setting, the three-dimensional space position of detector and detected workpiece, image reconstruction unit obtains the faultage image for being detected workpiece according to digital signal.The control system is manually adjusted without operator, is reduced the probability of error in operation, is improved detection efficiency.
Description
Technical field
The present invention relates to industrial detection technical fields, and in particular to a kind of control system for industry CT detection system.
Background technique
Industry CT is the abbreviation of industrial computer tomography technology, is grown up on the basis of ray detection
Technology.When process collimation and energy is I0Beam pass through object to be detected when, according to volume element each in each transmission direction
Attenuation coefficient it is different, the transmission potential I that detector receives is different.According to certain image reconstruction algorithm, tested work is obtained
The tomoscan image of part section a thin layer askiatic overlapping repeats the above process and can get a new faultage image, when
3-D image can be reconstructed by measuring enough two-dimensional ct images.In other words, industry CT can be not damaged in object to be detected
Under the conditions of, in the form of two-dimensional ct image or three-dimensional image, clearly, accurate, intuitively displaying object to be detected is interior
Portion's structure, composition, material and defective eigenpairs are known as current best non-destructive testing and nondestructive evaluation technology.
Industry CT is widely used in the industrial fields such as automobile, material, railway, space flight, aviation, military project, national defence, for boat
The succeeding in sending up of its carrier rocket and airship and space craft, the development of aero-engine, large-scale weapon system is examined and examination
It tests, geologic structure analysis, the prediction of rail truck speed and heavy load safety, petroleum reserves, mechanical product quality determine etc. provides
Important technical.
Traditional industry CT detection system mainly includes accelerator subsystem, detector subsystem, scanning means subsystem
With scan control subsystem, when detecting, these systems need to cooperate.It is currently by manually controlling or semi-automatic control
It makes, error is easy in operating process, and detection time is longer, detection efficiency is lower.
Summary of the invention
The purpose of the present invention is to provide a kind of control systems for industry CT detection system, to solve existing industry
The operation of CT detection system is easy error, the low problem of detection efficiency.
To achieve the above object, the technical scheme is that providing the control system for being used for industry CT detection system,
For controlling industry CT detection system, the industry CT detection system includes accelerator, detector and scanning means, institute
Stating control system includes Accelerator control unit, detector control unit, scan control unit and image reconstruction unit, it is described plus
Fast device control unit, the detector control unit, the scan control unit are connect with described image reconstruction unit signal,
The Accelerator control unit is used to control the operating status of the accelerator, and the detector control unit is described for controlling
The operating status of detector, the scan control unit are used to automatically control the accelerator, institute according to the parameter of user setting
The three-dimensional space position of detector and detected workpiece is stated, so that the X-ray beam scanning that the accelerator issues is detected workpiece,
And the detector receives the X-ray beam and obtains detection signal, and the detection signal is converted to digital data transmission
To described image reconstruction unit, described image reconstruction unit obtains the tomograph of the detected workpiece according to the digital signal
Picture.
Wherein, the scan control unit includes motion-control module and trigger module, wherein the motion-control module
It is connect with the scanning means signal, is used to control the movement of scanning means；The trigger module and the scanning means, institute
It states Accelerator control unit to connect with the detector control unit signal, the trigger module is according to the letter of the scanning means
Number starting accelerator goes out beam and the operation of detector control unit.
Wherein, the operating status of the accelerator includes the dosage for going out beam and X-ray beam of X-ray beam.
Wherein, the detector includes horizontal collimators and vertical collimation device, and the operating status of the detector includes adjusting
The slit width degree of the seam height and vertical collimation device of the whole horizontal collimators.
Wherein, the scanning means further includes detector micromotion mechanism, and the detector is set to the detector fine motion
In mechanism, the scan control unit is connect with the detector micromotion mechanism signal, to the detector micromotion mechanism
It is controlled.
Wherein, the control system further includes radiological safety protection unit, and the radiological safety protection unit is swept with described
It retouches control unit to connect with the Accelerator control cell signal, the Accelerator control unit and the scan control unit connect
It is controlled after receiving the permission enabling signal of the radiological safety protection unit, to provide security protection to operator.
Wherein, the radiological safety protection unit includes monitoring camera, warning lamp, broadcasting equipment and safety interlock device
One of or it is a variety of.
Wherein, the detector is the linear array detector that scintillation crystal couples photoelectric diode structure.
Wherein, the control system further includes printer, and the printer is connect with described image reconstruction unit signal.
The present invention has the advantage that
It is controlled provided by the present invention for the control system of industry CT detection system by Accelerator control unit, detector
Unit and scan control unit control the operation of accelerator, detector and scanning means, Accelerator control unit, detector respectively
Control unit and scan control unit are connect with image reconstruction unit signal, and Accelerator control unit is for controlling the accelerator
Operating status, the detector control unit is used to control the operating status of the detector, and the scan control unit is used
The three-dimensional space position of the accelerator, the detector and detected workpiece is automatically controlled in the parameter according to user setting,
So that the X-ray beam scanning that the accelerator issues is detected workpiece and the detector receives and scans the work piece
Detection signal is obtained after X-ray beam afterwards, and the detection signal is converted into digital data transmission to described image and rebuilds list
Member, described image reconstruction unit obtain the faultage image of the detected workpiece according to the digital signal, and the control system is certainly
It is dynamic to complete, the three-dimensional space position of accelerator, detector and detected workpiece is manually adjusted without operator, reduces operation
The probability of error, improves detection efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram provided in an embodiment of the present invention for industry CT detection system；
Fig. 2 is that (in figure: " → " indicates control to the functional block diagram provided in an embodiment of the present invention for industry CT detection system
Signal,Indicate input signal,Indicate Ethernet).
Drawing reference numeral: 1- accelerator, 11-X ray head, 2- detector, 3- scanning means, 41- Accelerator control unit,
42- detector control unit, 43- scan control unit, 431- motion-control module, 432- trigger module, 44- image reconstruction list
Member, 45- radiological safety protection unit, 7- are detected workpiece.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
Industry CT detection system provided in this embodiment includes accelerator 1, detector 2 and scanning dress combined with Figure 1 and Figure 2,
Set 3, wherein accelerator 1 includes X-ray head 11, and X-ray head 11 is for providing X-ray beam 12, and detector 2 is for receiving X
Beam signal is simultaneously converted to digital signal.Scanning means 3 is used to carry accelerator 1, detector 2 and detected workpiece 7, to
Complete CT, DR scanning motion.Scanning means 3 can be such that respectively accelerator 1 moves up and down, and detector 2 moves up and down,
And detected workpiece 7 is up and down and rotary motion, so that X-ray beam 12 is scanned detected workpiece 7, while making detector
X-ray beam 12 can be received.
In the present embodiment, control system includes Accelerator control unit 41, detector control unit 42, scan control list
Member 43 and image reconstruction unit 44, Accelerator control unit 41, detector control unit 42, scan control unit 43 are and image
44 signal of reconstruction unit connection, wherein Accelerator control unit 41 is used to control the operating status of accelerator 1, detector control
Unit 42 is used to control the operating status of detector 2, and scan control unit 43 is used to be automatically controlled according to the parameter of user setting
Accelerator 1, detector 2 and detected workpiece 7 are in the position of three-dimensional space, so that the X-ray beam scanning that accelerator 1 issues is tested
Workpiece 7 is surveyed, and obtains detection signal after so that detector is received the X-ray beam after scanning work piece, and will test signal and turn
Digital data transmission is changed to image reconstruction unit 44, image reconstruction unit 44 obtains according to digital signal and is detected workpiece 7
Faultage image.
In the present embodiment, image reconstruction unit 44 and Accelerator control unit 41, scan control unit 42 and detector
Control unit 43 is connected by cable, and such as Ethernet can also be connected by the wireless modes signal such as WIFI, bluetooth or Zigbee
It connects.
Scan control unit 43 include motion-control module 431 and trigger module 432, wherein motion-control module 431 with
The connection of 3 signal of scanning means, is used to control the movement of scanning means 3, if accelerator 1 moves up and down, about 2 detector
Side-to-side movement and detected workpiece 7 are up and down and rotary motion；Trigger module 432 and scanning means 3, Accelerator control
Unit 41 is connected with 42 signal of detector control unit, and trigger module 432 is according to the signal enabling accelerator 1 of scanning means 3
The operation of beam and detector control unit 42 out.
In the present embodiment, the operating status of accelerator 1 includes that X-ray beam goes out beam and dosage, i.e. X-ray head 11
Beam out.Detector 2 uses linear array detector, and the linear array detector of photoelectric diode structure is such as coupled using scintillation crystal,
And detector 2 further includes horizontal collimators and vertical collimation device, and the operating status of detector includes adjustment horizontal collimators
The slit width degree of seam height and vertical collimation device.The front end of linear array detector is arranged in horizontal collimators and vertical collimation device, with
Extra ray is shielded, horizontal collimators and vertical collimation device generally use high atomic number, high density material, such as lead, tungsten.
The seam height of horizontal collimators is 0.5-4mm, along directions of rays with a thickness of 80mm；The slit width degree of vertical collimation device is
0.25mm is 112mm along directions of rays length.For 6MeV accelerator radiographic source, the wide beam half-value layer of tungsten is 12mm, the width of lead
Beam half-value layer is 16mm.
In the present embodiment, in order to preferably adjust the three-dimensional space position of detector 2, scanning means 3 further includes detection
Device micromotion mechanism, detector 2 are set on detector micromotion mechanism, and scan control unit 43 and detector micromotion mechanism signal connect
It connects, to control detector micromotion mechanism, so that detector more accurately receives X-ray beam.
Embodiment 2
Industry CT detection system provided in this embodiment includes accelerator 1, detector 2 and scanning dress combined with Figure 1 and Figure 2,
Set 3, wherein accelerator 1 includes X-ray head 11, and X-ray head 11 is for providing X-ray beam 12, and detector 2 is for receiving X
Beam signal is simultaneously converted to digital signal.Scanning means 3 is used to carry accelerator 1, detector 2 and detected workpiece 7, to
Complete CT, DR scanning motion.Scanning means 3 can be such that respectively accelerator 1 moves up and down, and detector 2 moves up and down,
And detected workpiece 7 is up and down and rotary motion, so that X-ray beam 12 can scan detected workpiece 7, while making to detect
Device can receive X-ray beam 12.
In the present embodiment, control system includes Accelerator control unit 41, detector control unit 42, scan control list
Member 43 and image reconstruction unit 44, Accelerator control unit 41, detector control unit 42, scan control unit 43 are and image
44 signal of reconstruction unit connection, wherein Accelerator control unit 41 is used to control the operating status of accelerator 1, detector control
Unit 42 is used to control the operating status of detector 2, and scan control unit 43 is used to be automatically controlled according to the parameter of user setting
The three-dimensional space position of accelerator 1, detector 2 and detected workpiece 7, so that the X-ray beam scanning that accelerator 1 issues is detected
Workpiece 7 and detector obtain detection signal after receiving the X-ray beam after scanning work piece, and will test signal and be converted to
Digital data transmission to image reconstruction unit 5, image reconstruction unit 5 obtains the tomograph for being detected workpiece 7 according to digital signal
Picture.
In the present embodiment, image reconstruction unit 44 and Accelerator control unit 41, scan control unit 42 and detector
Control unit 43 is connected by cable, can also be connected by the wireless modes signal such as WIFI, bluetooth or Zigbee.
Scan control unit 43 include motion-control module 431 and trigger module 432, wherein motion-control module 431 with
The connection of 3 signal of scanning means, is used to control the movement of scanning means 3, specifically, accelerator 1 moves up and down, detector
2 move up and down and detected workpiece 7 up and down and rotary motion；Trigger module 432 and scanning means 3, accelerator
Control unit 41 is connected with 42 signal of detector control unit, and trigger module 432 is according to the signal enabling accelerator of scanning means 3
1 operation for going out beam and detector control unit 42.
In the present embodiment, the operating status of accelerator 1 includes that X-ray beam goes out beam and dosage, i.e. X-ray head 11
Beam out.Detector 2 uses linear array detector, and the linear array detector of photoelectric diode structure is such as coupled using scintillation crystal,
And detector 2 further includes horizontal collimators and vertical collimation device, and the operating status of detector includes adjustment horizontal collimators
The slit width degree of seam height and vertical collimation device.The front end of linear array detector is arranged in horizontal collimators and vertical collimation device, with
Extra ray is shielded, horizontal collimators and vertical collimation device generally use high atomic number, high density material, such as lead, tungsten.
The seam height of horizontal collimators is 0.5-4mm, along directions of rays with a thickness of 80mm；The slit width degree of vertical collimation device is
0.25mm is 112mm along directions of rays length.For 6MeV accelerator radiographic source, the wide beam half-value layer of tungsten is 12mm, the width of lead
Beam half-value layer is 16mm.
In the present embodiment, in order to preferably adjust the three-dimensional space position of detector 2, scanning means 3 further includes detection
Device micromotion mechanism, detector 2 are set on detector micromotion mechanism, and scan control unit 43 and detector micromotion mechanism signal connect
It connects, to control detector micromotion mechanism, so that detector more accurately receives X-ray beam.
In the present embodiment, control system further includes radiological safety protection unit 45, radiological safety protection unit 45 with sweep
It retouches control unit 43 to connect with 42 signal of Accelerator control unit, Accelerator control unit 42 and scan control unit 43 receive spoke
It is controlled after penetrating the permission enabling signal of security protection unit 45, in other words, in Accelerator control unit 42 and scan control
Before unit 43 does not receive the permission enabling signal of radiological safety protection unit 45, accelerator 1 and scanning cannot be accordingly controlled
Device 3 is run, to provide security protection to operator.
In the present embodiment, radiological safety protection unit 45 includes monitoring camera, warning lamp, broadcasting equipment and safety connection
One of lock device is a variety of.
In addition, in the above-described embodiments, control system further includes printer, printer and image reconstruction unit signal connect
It connects, image reconstruction unit will need the data printed transmission printer to print.
It should be noted that accelerator 1, detector 2 and scanning means 3 can use existing skill in above-described embodiment
Accelerator 1, detector 2 and scanning means 3 in art, can also be using various types of accelerators 1, the detector occurred in the future
2 and scanning means 3.
Control system provided by the above embodiment for industry CT detection system passes through Accelerator control unit, detector
Control unit and scan control unit control the operation of accelerator, detector and scanning means respectively, and Accelerator control unit is visited
It surveys device control unit and scan control unit is connect with image reconstruction unit signal, Accelerator control unit is for controlling described add
The operating status of fast device, the detector control unit are used to control the operating status of the detector, the scan control list
Member is for automatically controlling the three-dimensional space meta position of the accelerator, the detector and detected workpiece according to the parameter of user setting
It sets, so that the X-ray beam scanning that the accelerator issues is detected workpiece and the detector receives and scans described be processed
Detection signal is obtained after X-ray beam after part, and the detection signal is converted into digital data transmission to described image and is rebuild
Unit, described image reconstruction unit obtain the faultage image of the detected workpiece, the control system according to the digital signal
It is automatically performed, the three-dimensional space position of accelerator, detector and detected workpiece is manually adjusted without operator, reduce behaviour
Make the probability to malfunction, improves detection efficiency.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (9)
1. a kind of control system for industry CT detection system is used to control industry CT detection system, the work
Industry CT detection system includes accelerator, detector and scanning means, which is characterized in that the control system includes Accelerator control
Unit, detector control unit, scan control unit and image reconstruction unit, the Accelerator control unit, the detector
Control unit, the scan control unit are connect with described image reconstruction unit signal, and the Accelerator control unit is used for
The operating status of the accelerator is controlled, the detector control unit is used to control the operating status of the detector, described
Scan control unit is used to automatically control the accelerator, the detector and detected workpiece according to the parameter of user setting
Three-dimensional space position, so that the X-ray beam scanning that the accelerator issues is detected described in workpiece and detector reception
X-ray beam obtains detection signal, and the detection signal is converted to digital data transmission to described image reconstruction unit, described
Image reconstruction unit obtains the faultage image of the detected workpiece according to the digital signal.
2. control system according to claim 1, which is characterized in that the scan control unit includes motion-control module
And trigger module, wherein the motion-control module is connect with the scanning means signal, is used to control the fortune of scanning means
It is dynamic；The trigger module is connect with the scanning means, the Accelerator control unit and the detector control unit signal,
Trigger module accelerator according to the signal enabling of the scanning means goes out beam and detector control unit fortune
Row.
3. control system according to claim 1, which is characterized in that the operating status of the accelerator includes X-ray beam
Go out beam and X-ray beam dosage.
4. control system according to claim 1, which is characterized in that the detector includes horizontal collimators and vertical standard
Straight device, the operating status of the detector include the slit width degree for adjusting the seam height and vertical collimation device of the horizontal collimators.
5. control system according to claim 1, which is characterized in that the scanning means further includes detector micromover
Structure, the detector are set on the detector micromotion mechanism, the scan control unit and the detector micromotion mechanism
Signal connection, to control the detector micromotion mechanism.
6. control system according to claim 1, which is characterized in that the control system further includes radiological safety protection list
Member, the radiological safety protection unit are connect with the scan control unit and the Accelerator control cell signal, described to add
Fast device control unit and the scan control unit are controlled after receiving the permission enabling signal of the radiological safety protection unit
System, to provide security protection to operator.
7. control system according to claim 6, which is characterized in that the radiological safety protection unit includes monitoring camera
One of head, warning lamp, broadcasting equipment and safety interlock device are a variety of.
8. control system according to claim 1, which is characterized in that the detector is that scintillation crystal couples two pole of photoelectricity
The linear array detector of pipe structure.
9. control system according to claim 1, which is characterized in that the control system further includes printer, described to beat
Print machine is connect with described image reconstruction unit signal.
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| CN201810838187.0A CN109164116B (en) | 2018-07-26 | 2018-07-26 | Control system for industrial CT detection system |
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| CN201810838187.0A CN109164116B (en) | 2018-07-26 | 2018-07-26 | Control system for industrial CT detection system |
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| CN109164116B CN109164116B (en) | 2021-01-12 |
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