CN206239428U - The multi-modal x-ray CT imagings research experiments platform of self adaptation - Google Patents
The multi-modal x-ray CT imagings research experiments platform of self adaptation Download PDFInfo
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- CN206239428U CN206239428U CN201620809478.3U CN201620809478U CN206239428U CN 206239428 U CN206239428 U CN 206239428U CN 201620809478 U CN201620809478 U CN 201620809478U CN 206239428 U CN206239428 U CN 206239428U
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Abstract
The utility model is related to the multi-modal x-ray CT imagings research experiments platform of self adaptation, it is characterised in that the CT platforms include plummer, center loading turntable component, x-ray generator and position moving assembly, x-ray detector and position moving assembly and range measurement component；Plummer plays a part of the every other component of support and imaging body；Center loading turntable component is located at the center of plummer；X-ray generator and position moving assembly are located at the right side of center loading turntable component；X-ray detector and position moving assembly are located at the left side of center loading turntable component；Range measurement component is located at the rear side of center loading turntable component, and the center loading turntable component includes objective table, connecting shaft, shaft coupling, turntable motor and position switch；Objective table is disc, on the table top of plummer；Connecting shaft passes through the table top of plummer, and the top of connecting shaft is connected with objective table central point, and bottom is connected by shaft coupling with turntable motor.
Description
Technical field
The utility model is related to the experimental teaching equipment technical field of biomedical imaging scientific research, it is specifically a kind of from
Multi-modal x-ray CT imagings research experiments platform is adapted to, the platform can carry out the self-adaptative adjustment of imaging pattern and parameter, obtain
X ray CT.
Background technology
In biomedical process of scientific research, the interior tissue and structure that biological living or sample are sought in detail are research
One of key areas.X-ray imaging technology can generate its interior tissue knot on the premise of studied organism is not destroyed
The image of structure, especially CT (computer tomography) technology can obtain the 3-dimensional image of bio-tissue structure.Therefore X is penetrated
Line CT is as one of major way being imaged with organism (especially experimental animal) internal organizational structure to scientific research.
The basic structure and imaging process of X ray CT is：Imaging body is placed in the middle of x ray generator and x-ray detector,
X ray generator is relative with detector and central point aligns, and the distance of both is referred to as aperture, the X produced in imaging process
Ray produces decay and absorbs, the X-ray after decay through imaging body and according to imaging body internal organizational structure and density feature
Received by the detector of offside and obtain X-ray intensity data, the X ray image of a width single direction can be obtained accordingly.Work as X
Ray generator and detector are rotated by 360 ° around imaging body and are obtained with according to the angle interval of setting multidirectional many
Several images are carried out the three-dimensional internal institutional framework image that image reorganization reconstruct is obtained with imaging body by width X ray image.
The building form of shape and detector the basis probe unit according to the inswept imaging body of X-ray, X ray CT can be divided into sector again
Beam CT and conical beam CT.
In current known technology, dedicated for the X ray CT of scientific research, mouse or rat imaging are all used exclusively for
Horizontal fixed small-bore (a diameter of 10cm or so) the rotary single energy X ray CT of pencil-beam；But, because aperture is small, spy
The shortcomings of survey device area is small, this kind of scientific research X ray CT is helpless for the organism more than this diameter.Must not at this
In the case of, in scientific research can only using human diagnosis with X ray CT the organism studied is imaged.Medical diagnosis
It is the multiple rows of fladellum rotation in the horizontal fixed large aperture (a diameter of 80cm or so) of human body imaging design that X ray CT used is all
Formula X ray CT.But, for the Imaging biological body of scientific research institution, especially medium sized experimental animal, medical diagnosis X
Ray CT has that resolving power is relatively low and the artifact inherent defect such as substantially due to using row's formula detector and large aperture.Together
When, the X ray CT that organism imaging and human body imaging are carried out at present is all constant aperture, that is, x ray generator and detection
The distance of device is fixed and can not change, therefore it can not be met for the Imaging biological body of various different sizes and type carries out section
Grind required high-quality low artefact X ray CT image.
Utility model content
The purpose of this utility model is that, by the profile and size of detection imaging organism, the adjustment X-ray of self adaptation is sent out
The energy of raw the distance between device and detector and X-ray；Pencil-beam imaging and fan can be carried out according to specific scientific research requirement
The multi-modal method of pencil of forms imaging；The multimode that rotary imaging and horizontal sliding rotary are imaged can be carried out according to image quality requirement
State method, makes the geomery and imaging mode of size, X-ray detector area, pencil-beam or the fladellum of Imaging biological body
Effectively coordinated, less artifact and the optimal quality of image is obtained with this.
The purpose of this utility model is achieved through the following technical solutions：A kind of multi-modal x-ray CT imagings scientific research of self adaptation
Experiment porch, it is characterised in that the CT platforms include the movement of plummer, center loading turntable component, x-ray generator and position
Component, x-ray detector and position moving assembly and range measurement component；Plummer plays the every other component of support and imaging body
Effect；Center loading turntable component is located at the center of plummer；X-ray generator and position moving assembly are located at center loading
The right side of turntable component；X-ray detector and position moving assembly are located at the left side of center loading turntable component；Range measurement
Component is located at the rear side of center loading turntable component,
The center loading turntable component is opened including objective table, connecting shaft, shaft coupling, turntable motor and position
Close；Objective table is disc, on the table top of plummer；Connecting shaft passes through the table top of plummer, top and the load of connecting shaft
Thing platform central point is connected, and bottom is connected by shaft coupling with turntable motor；The first of objective table is obtained by position switch
Begin and final position；
The x-ray generator and position moving assembly include that x-ray generator, light beam limit out device, y-axis generator movement group
Part, x-axis generator moving assembly and x-axis generator line slide rail；X-axis generator moving assembly and x-axis generator line slide rail
It is arranged in parallel on plummer, y-axis generator moving assembly is slided across in x-axis generator moving assembly and x-axis generator straight line
Between rail, and can be moved left and right on x-axis generator moving assembly and x-axis generator line slide rail, in y-axis generator movement group
X-ray generator is fixedly connected with above part, x-ray generator can be moved forward and backward on y-axis generator moving assembly, the x-ray
Device is limited out with lead matter light beam, the light source output mouthful of x-ray generator is towards objective table on generator；
The structure of the x-ray detector and position moving assembly is similar to the structure of x-ray generator and position moving assembly,
Limited including x-ray detector, light beam and slided into device, y-axis detector moving assembly, x-axis detector moving assembly and x-axis detector straight line
Rail, across between x-axis detector moving assembly and x-axis detector line slide rail, difference exists y-axis detector moving assembly
In, x-ray detector is fixedly connected on y-axis detector moving assembly, the centrally directed objective table of x-ray detector, the x-ray is detected
Device is limited into device with lead matter light beam；Alignd with the light source output mouthful of x-ray generator at x-ray detector center；
The range measurement component includes range finder and range finder support frame, by adjusting the height of range finder support frame,
So that the height such as the input window of range finder and x-ray generator light source output mouthful；
X-ray detector, x-ray generator are connected with outside tomography computer, and range finder, position switch and motor are equal
It is connected with external control computer.
Compared with present technology, the multi-modal x-ray CT imagings research experiments platform of self adaptation of the present utility model, it has sharp
Ligh-ranging device, can obtain the radial shape of imaging object, and this imaging shape is used as self adaptive imaging mode and parameter adjustment
Reference basis；The x-axis generator moving assembly and x-axis detector moving assembly of platform left and right sides lower floor are used for self adaptation
Change the distance between x-ray generator and detector, so as to obtain optimal imaging mode；The y-axis on platform left and right sides upper strata
Generator moving assembly and y-axis detector moving assembly are used for align x-ray generator and detector, and in imaging process, y-axis occurs
Device moving assembly and the motionless picture that is rotated into being capable of achieving for middle-size and small-size imaging body of y-axis detector moving assembly, y-axis generator are moved
Dynamic component and y-axis detector moving assembly slide and are capable of achieving to move into picture for the rotary flat of medium-and-large-sized imaging body；Objective table into
The imaging body rotation of adjustable speed is realized as in, to obtain the Multi-angle X-ray image at the various intervals needed for CT three-dimensionalreconstructions, together
When reduce the overall volume and implementation complexity of whole imaging platform；Light beam limits out device and light beam is limited into device with the use of can
Realize the x-ray light beam request of pencil-beam and fladellum multi-modality imaging.Therefore, by measuring imaging body profile self-adaptative adjustment X
The relative position of line generator and detector and imaging, with reference to x-ray limit out device and limit into device coordinate can self adaptation realization cone
The multi-modality imaging modes such as the pencil of forms, fladellum, rotation, translation rotation, center loading turntable component adjustable rotating is fast in addition
Slow and imaging interval angle, structure is small on the whole for the utility model, and control is easy, and high precision can meet the various of scientific experiment
Imaging demand, realizes optimal imaging mode, obtains image quality high.
Brief description of the drawings
Fig. 1 is a kind of multi-modal x-ray CT imagings stereochemical structure of embodiment of research experiments platform of the utility model self adaptation
Schematic diagram.
Fig. 2 is a kind of multi-modal x-ray CT imagings plan structure of embodiment of research experiments platform of the utility model self adaptation
Schematic diagram.
Fig. 3 faces structure for a kind of multi-modal x-ray CT imagings embodiment of research experiments platform of the utility model self adaptation
Schematic diagram.
Fig. 4 is a kind of multi-modal x-ray CT imagings central rotation of embodiment of research experiments platform of the utility model self adaptation
The main structure diagram of platform part.
Fig. 5 is a kind of multi-modal x-ray CT imagings x-ray generator of embodiment of research experiments platform of the utility model self adaptation
The dimensional structure diagram of platform assembly.
Fig. 6 is the x-ray detector that the multi-modal x-ray CT of the utility model self adaptation is imaged a kind of embodiment of research experiments platform
The dimensional structure diagram of platform assembly.
In figure, 1- plummers, 2- centers loading turntable component, 3-X lines generator and position moving assembly, 4-X lines are visited
Survey device and position moving assembly, 5- range measurement components；21- objective tables, 22- connecting shafts, 23- turntables shaft coupling, 24- rotations
Platform motor, 25- position switch；31-X lines generator, 32- light beams limit out device, 33-y axle generators moving assembly, 34-x axles
Generator moving assembly, 35-x axle generator line slide rails；41-X line detectors, 42- light beams are limited and moved into device, 43-y axles detector
Dynamic component, 44-x axle detectors moving assembly, 45-x axle detector line slide rails；51- range finders, 52- range finder support frames；
3301 3401 4301 4401- ball screws, 3302 3402 4302 4402- line slideways, 3303 3403 4303
4403- ball screws support base, 3304 3404 4304 4404- shaft couplings, 3305 3405 4305 4405- movement drive electricity
Machine, 3306 3406 4306 4406- position switch, 3307 3407 4307 4407-sliding block.
Specific embodiment
The utility model is further explained in detail with reference to implementation method and its accompanying drawing, but not in this, as right
The restriction of the application claims.Involved in the present embodiment orientation description, such as around, it is upper inferior,
With orientation shown in accompanying drawing 1,2,3 as reference.
The utility model is based on the multi-modal x-ray CT of self adaptation and is imaged research experiments platform (abbreviation CT platforms, referring to Fig. 1-6)
Including the movement of plummer 1, center loading turntable component 2, x-ray generator and position moving assembly 3, x-ray detector and position
Component 4 and range measurement component 5；Plummer 1 is table type platform, plays a part of the every other component of support and imaging body；In
Heart loading turntable component 2 is located at the center of plummer 1；X-ray generator and position moving assembly 3 are located at center loading turntable
The right side of component 2；X-ray detector and position moving assembly 4 are located at the left side of center loading turntable component 2, x-ray generator 31
Light source output mouthful and the center alignment of x-ray detector 41；Range measurement component 5 is located at the rear side of center loading turntable component 2,
The center loading turntable component 2 (referring to Fig. 3 and Fig. 4) include objective table 21, connecting shaft 22, shaft coupling 23,
Turntable motor 24 and position switch 25；Objective table 21 is disc, for placing imaging body, positioned at the platform of plummer 1
On face；Connecting shaft 22 through plummer 1 table top, it be connected with the central point of objective table 21 upwards, pass downwardly through shaft coupling 23 and
Turntable motor 24 is connected；Rotated by turntable motor 24, band dynamic object stage 21 rotates around its central point, with
Multi-angle X-ray imaging needed for realizing CT reconstruct, the initial and final position of objective table is obtained by position switch 25；
The x-ray generator and position moving assembly 3 (referring to Fig. 1,2,3,5) limit out device including x-ray generator 31, light beam
32nd, y-axis generator moving assembly 33, x-axis generator moving assembly 34 and x-axis generator line slide rail 35；X-axis generator is moved
Component 34 and x-axis generator line slide rail 35 are arranged in parallel on plummer 1, and y-axis generator moving assembly 33 is sent out across in x-axis
Between raw device moving assembly 34 and x-axis generator line slide rail 35, and can be in x-axis generator moving assembly 34 and x-axis generator
Moved left and right on line slide rail 35, x-ray generator 31 is fixedly connected with the top of y-axis generator moving assembly 33, x-ray occurs
Device 31 can be moved forward and backward on y-axis generator moving assembly 33, and device 32, X is limited out with lead matter light beam on the x-ray generator 31
Towards objective table 21, x-ray generator 31 produces X-ray to the light source output mouthful of line generator 31, and it is suitable for producing that light beam limits out device
The x-ray light beam (pencil-beam or fladellum) of conjunction, the mode demand according to imaging changes light beam and limits out device 32, x-ray is output as cone
The pencil of forms or fladellum.
The y-axis generator moving assembly 33 includes ball screw 3301, line slideway 3302, ball screw support base
3303rd, shaft coupling 3304, mobile motor 3305, position switch 3306 and sliding block 3307；Ball screw 3301 is fixed on rolling
On ballscrew support base 3303, and it is connected with mobile motor 3305 by shaft coupling 3304, sliding block 3307 is fixed on rolling
On ballscrew 3301, and can be slided on line slideway 3302, position switch 3306 can be perceived and limit the shifting of sliding block 3307
Dynamic position；The upper surface of sliding block 3307 is fixedly connected with x-ray generator 31, will mobile motor by ball screw 3301
3305 rotary motion becomes the linear motion of sliding block 3307；The structure composition of the x-axis generator moving assembly 34 is sent out with y-axis
Raw device moving assembly 33 is identical, including ball screw 3401, line slideway 3402, ball screw support base 3403, shaft coupling
3404th, mobile motor 3405, position switch 3406 and sliding block 3407, move in the upper surface of sliding block 3407 and y-axis generator
The one end of ball screw support base 3303 connection of dynamic component 33, the ball screw support base 3303 of y-axis generator moving assembly 33
The other end be fixed on x-axis generator line slide rail 35 by slide unit；Ball screw 3401 is by shaft coupling 3404 and movement
Motor 3405 is connected, and the rotary motion of mobile motor 3405 is become into sliding block 3407 by ball screw 3401
Linear motion, while position switch 3406 can be perceived and limit the shift position of sliding block 3407；Therefore the y-axis of both direction is sent out
Raw device moving assembly 33 and x-axis generator moving assembly 34 can produce the x-ray generator 31 for limiting out device 32 with lead matter light beam
Two motions of the free degree of x-axis and y-axis direction needed for raw imaging process；
The structure and x-ray generator and position of the x-ray detector and position moving assembly 4 (referring to Fig. 1,2,3,6) are moved
The structure of dynamic component 3 is similar, including x-ray detector 41, light beam is limited into device 42, y-axis detector moving assembly 43, x-axis detector
Moving assembly 44 and x-axis detector line slide rail 45, y-axis detector moving assembly 43 is across x-axis detector moving assembly 44 and x
Between axle detector line slide rail 45, difference is to be fixedly connected x-ray detector on y-axis detector moving assembly 43
41, the centrally directed objective table 21 of x-ray detector 41, the x-ray detector 41 is limited into device 42, x-ray detector with lead matter light beam
Incident X-ray intensity is detected, can change light beam according to imaging demand limits into device 42 to meet pencil-beam imaging or fladellum
Imaging detection demand；
The y-axis detector moving assembly 43 includes ball screw 4301, line slideway 4302, ball screw support base
4303rd, shaft coupling 4304, mobile motor 4305, position switch 4306 and sliding block 4307；Ball screw 4301 passes through shaft coupling
Device 4304 is connected with motor 4305 is moved, and the rotation motion of motor 4305 will be moved by ball screw 4301
Moved along a straight line into sliding block 4307, while position switch 4306 can be perceived and limit the shift position of sliding block 4307；With lead matter
The x-ray detector 41 that light beam limits device 42 is placed on the sliding block 4307 of y-axis detector moving assembly 43；The x-axis detector
Moving assembly 44 includes ball screw 4401, line slideway 4402, ball screw support base 4403, shaft coupling 4404, mobile drive
Dynamic motor 4405, position switch 4406 and sliding block 4407, ball screw 4401 is by shaft coupling 4404 and mobile motor
4405 are connected, and the rotary motion of mobile motor 4405 is become into sliding block 4407 by ball screw 4401 moves along a straight line,
Position switch 4406 can be perceived and limit the shift position of sliding block 4407 simultaneously；Therefore the y-axis detector movement of both direction
Component 43 and x-axis detector moving assembly 44 can make to follow x-ray generator 31 to produce imaging process institute with x-ray detector 41
Two motions of the free degree of the x-axis and y-axis direction that need.
The range measurement component 5 (referring to Fig. 1,2,3) is for detection imaging body radial dimension, including range finder 51 and survey
Away from device support frame 52, by the height for adjusting range finder support frame 52 so that the input window of range finder 51 and the light of x-ray generator 41
The height such as extraction slit；It is all to be driven through independent drive control device corresponding motor (the turntable motor of driving
With mobile motor) it is controlled；X-ray detector, x-ray generator are connected with outside tomography computer, range finder, position
Switch and all of motor are connected with external control computer, laser ranging data, and position switch data and driving are electric
The external control computer that machine control data is input into or exports respectively, x-ray detector gathered data and x-ray generator control data
Also it is input into respectively or exports to outside tomography computer.
The range finder 51 that is further characterized by of the present utility model is for laser range finder.
Objective table 21 in the utility model can drive imaging body to rotate, realize CT imaging needed for Multi-angle X-ray into
Picture；The interval of adjustment imaging angle is rotated to obtain the imaging matter matched with imaging body by turntable motor 24 simultaneously
Amount；X-ray generator 31 and x-ray detector 41 respectively can by x-axis generator moving assembly 34 and x-axis detector moving assembly 44
To carry out left and right translation, realize the adjustment of distance between x-ray generator 31 and x-ray detector 41 to obtain optimal imaging knot
Structure.X-ray generator 31 and x-ray detector 41 respectively can by y-axis generator moving assembly 33 and y-axis detector moving assembly 43
To carry out anterior-posterior translation, realization is rotated into picture and rotary flat moves into the multi-modal adjustment of picture.Range finder 51 is measurable from imaging body
Surface to range finder 51 air line distance, so as to obtain the size and central transverse section shape of imaging body, for adaptively changing
Become the structure and parameter of imaging.Self adaptation described in the utility model refers to pass through external control according to the imaging body characteristicses of measurement
Computer controls change the action of motor, and the corresponding dependency structure parameter for changing image-forming block carries out self-adaptative adjustment
Measurement result of the parameter from range finder.Device 32 being limited out using light beam and light beam being limited into device 42, cone is realized with their cooperation
The multimodal switchover that the pencil of forms is imaged and fladellum is imaged.
The operation principle of the utility model self adaptation multi-modal x-ray CT imaging research experiments platforms is with application method：Root
The need for according to scientific research, Imaging biological live body or sample are placed the objective table 21 for being fixed on center loading turntable component 2
On；The control turntable motor 24 of driver is controlled by external control computer, is rotated by position switch 25 first
Objective table 21 returns to initial bit；Open range finder 51, at the uniform velocity rotatable stage 21, obtain imaging body central transverse section outer surface with
The distance of range finder 51, also just measures imaging body central transverse section shape, thickness and maximum gauge.According to measured imaging
Body radial direction maximum gauge, the rotation of the mobile motor 3305/4305 of control, and then ball screw 3301/4301 is driven in y-axis
On move left and right x-ray generator 31 and x-ray detector 41, self-adaptative adjustment they the distance between, so as to obtain optimal imaging
Mechanism.Replacing light beam limits out device 32 and light beam is limited into device 42, to realize that scientific research needs taper to be imaged or fan-shaped imaging.If imaging
Body is small compared with the width of detector, then using picture is rotated into, x-ray generator 31 and x-ray detector 41 are maintained static in imaging, loading
Platform 21 rotates, and every an angle, carries out an x-ray imaging, after being rotated by 360 °, all of x-ray image is entered in a computer
Row image reconstruction is obtaining three-dimensional CT images.If imaging body is big compared with the width of x-ray detector, picture is rotated into using translation,
Objective table 21 rotates in imaging, every an angle, by controlling y-axis generator moving assembly 33 and y-axis detector movement group
Part 43 causes x-ray generator 31 and x-ray detector 41 in the anterior-posterior translation in x-axis direction, carries out the imaging of many pair x-rays whole to cover
Imaging body, then rotates to next angle.After being rotated by 360 °, angled several images of x-ray of institute are carried out in a computer
Image reconstruction is obtaining three-dimensional CT images.
The motor being related in the utility model, position switch, x-ray generator, x-ray detector, distance measuring unit etc.
It is available commercially.The not described part of the utility model is applied to prior art.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and implementation method
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (3)
1. a kind of multi-modal x-ray CT of self adaptation is imaged research experiments platform, it is characterised in that the CT platforms include plummer, center
Loading turntable component, x-ray generator and position moving assembly, x-ray detector and position moving assembly and range measurement component；
Center loading turntable component is located at the center of plummer；X-ray generator and position moving assembly are located at center loading turntable
The right side of component；X-ray detector and position moving assembly are located at the left side of center loading turntable component；Range measurement component position
In the rear side of center loading turntable component,
The center loading turntable component includes objective table, connecting shaft, shaft coupling, turntable motor and position switch；
Objective table is disc, on the table top of plummer；Connecting shaft passes through the table top of plummer, the top of connecting shaft and objective table
Central point is connected, and bottom is connected by shaft coupling with turntable motor；
The x-ray generator and position moving assembly include that x-ray generator, light beam limit out device, y-axis generator moving assembly, x-axis
Generator moving assembly and x-axis generator line slide rail；X-axis generator moving assembly cloth parallel with x-axis generator line slide rail
Put on plummer, y-axis generator moving assembly across between x-axis generator moving assembly and x-axis generator line slide rail,
And can be moved left and right on x-axis generator moving assembly and x-axis generator line slide rail, in the upper of y-axis generator moving assembly
Side is fixedly connected with x-ray generator, and x-ray generator can be moved forward and backward on y-axis generator moving assembly, the x-ray generator
Upper to limit out device with lead matter light beam, the light source output mouth of x-ray generator is towards objective table；
The x-ray detector and position moving assembly include that x-ray detector, light beam are limited into device, y-axis detector moving assembly, x-axis
Detector moving assembly and x-axis detector line slide rail, y-axis detector moving assembly is across x-axis detector moving assembly and x-axis
Between detector line slide rail, x-ray detector, the centrally directed load of x-ray detector are fixedly connected on y-axis detector moving assembly
Thing platform, the x-ray detector is limited into device with lead matter light beam；X-ray detector center is right with the light source output mouthful of x-ray generator
Together；
The range measurement component includes range finder and range finder support frame, by the height for adjusting range finder support frame so that
The height such as input window and x-ray generator the light source output mouth of range finder；
X-ray detector, x-ray generator are connected with outside tomography computer, range finder, position switch and motor with outward
Portion's control computer connection.
2. the multi-modal x-ray CT of self adaptation according to claim 1 is imaged research experiments platform, it is characterised in that the y-axis
Generator moving assembly, x-axis generator moving assembly, y-axis detector moving assembly and x-axis detector moving assembly structure are homogeneous
Together, including ball screw, line slideway, ball screw support base, shaft coupling, mobile motor, position switch and sliding block；
Ball screw is fixed on ball-screw support base, and is connected with mobile motor by shaft coupling, and sliding block is fixed on rolling
On ballscrew, and can be slided on line slideway.
3. the multi-modal x-ray CT of self adaptation according to claim 1 is imaged research experiments platform, it is characterised in that the range finding
Device is laser range finder.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102394091B1 (en) * | 2021-09-13 | 2022-05-04 | 오병후 | X-ray inspection device for helicopter blades |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102394091B1 (en) * | 2021-09-13 | 2022-05-04 | 오병후 | X-ray inspection device for helicopter blades |
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