CN110763707A - Portable X-ray CT imaging device and working method thereof - Google Patents
Portable X-ray CT imaging device and working method thereof Download PDFInfo
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Abstract
The invention relates to a portable X-ray CT imaging device and a working method thereof, and the device comprises a C-shaped arm, an X-ray machine, a detector, a driving motor, a cantilever and a supporting mechanism, wherein the supporting mechanism supports the device; the detector transmits the image to a computer device. The invention realizes the three-dimensional imaging of the detected object in a portable mode by controlling the rotation of the X-ray machine and the detector, not only avoids the trouble of conveying the object to the location of a special CT scanning mechanism, but also can obtain the internal three-dimensional information of the detected object, and is favorable for rapidly and accurately judging the internal composition and structure of the suspicious object on site when being used in the security inspection industry.
Description
Technical Field
The invention relates to a CT imaging device, in particular to a portable X-ray CT imaging device and a working method thereof, belonging to the technical field of radiation imaging equipment.
Background
With the increasing severity of the security situation, the real-time security inspection of suspicious articles is required to quickly detect out forbidden articles and guarantee the social security, while the conventional portable X-ray inspection device cannot meet the requirement of quick detection.
The traditional portable X-ray inspection device can only shoot two-dimensional images and can not carry out three-dimensional CT imaging; chinese patent No. CN201378150Y discloses a portable X-ray stereo imaging apparatus, but the stereo imaging apparatus needs to manually move the X-ray optical path, and the operation is cumbersome in the actual use process.
Disclosure of Invention
The purpose of the invention is as follows: it is a further object of the present invention to provide a working method based on the portable X-ray CT imaging apparatus, so as to solve the above problems in the prior art.
The technical scheme is as follows: a portable X-ray CT imaging device comprises a C-shaped arm, an X-ray machine, a detector, a driving motor, a cantilever and a supporting mechanism, wherein one end of the cantilever is connected with the supporting mechanism, the other end of the cantilever is connected with the C-shaped arm through a rotary joint, two ends of the C-shaped arm are respectively connected with the X-ray machine and the detector, a ray source of the X-ray machine faces the detector, and a receiving surface of the detector faces the X-ray machine;
the detector transmits the image to a computer device through a preset transmission mode to form a three-dimensional image.
After the rotary joint rotates, the C-shaped arm rotates along with the rotary joint, the X-ray machine positioned at one end of the C-shaped arm emits rays, the detector positioned at the other end of the C-shaped arm collects images, the detector transmits the images to computer equipment through wireless transmission, and the images are reconstructed through a CT algorithm to form three-dimensional images.
In a further embodiment, the rotary joint comprises a driving motor, a motor shaft of the driving motor is perpendicular to the cantilever, and the motor shaft of the driving motor is connected with the C-shaped arm through a coupler; the distance between the driving motor and the X-ray machine is d1, the distance between the driving motor and the detector is d2, and d1 is larger than d 2. The C-shaped arm can be controlled to rotate by controlling the starting of the driving motor, the C-shaped arm can rotate circumferentially at a constant speed, the scanning device can be kept in a stable working state, and each voxel datum can be accurately obtained. Placing an object to be detected below the C-shaped arm and between the ray source and the detector, wherein in the rotating process of the C-shaped arm, the ray source of the X-ray machine penetrates through the object to be detected and forms an image on the detector; because the distance between the X-ray machine and the object to be detected is larger than the distance between the detector and the object to be detected, the X-ray machine can penetrate through a larger area of the object to be detected under the condition that the angle of a ray source of the X-ray machine is not changed.
In a further embodiment, the supporting mechanism comprises a handle, the handle is arranged on the outer side of the cantilever, a handle control end is arranged in the handle, and the handle control end can receive a scanning command of the computer equipment and control the working state of the driving motor; the handle is provided with a button. When the cantilever type scanning device is used, an operator can hold the handle to support the cantilever, when the handle control end receives a scanning command, the handle control end controls the driving motor to rotate, the C-shaped arm rotates along with the driving motor, and the object to be detected is convenient to scan. When the operator presses the button, the button control end is in a connected state, and the handle control end can receive a scanning command from the computer equipment, so that the single operator can conveniently operate the device.
In a further embodiment, the supporting mechanism comprises a vertical column, the vertical column is movably arranged on the ground, and the cantilever is connected with one end of the vertical column far away from the ground. Fix the cantilever through the stand, when examining, directly place the stand subaerial, the operator of being convenient for uses.
In a further embodiment, the support mechanism comprises a robotic arm positioned on the floor, the post being removably connected to an end of the robotic arm; the mechanical arm comprises a driving base, a primary joint movably connected to the driving base, a secondary joint movably connected with one end of the primary joint, a tertiary joint movably connected with one end of the secondary joint, and a switching joint movably connected with one end of the tertiary joint; the driving base is respectively driven and controlled by a first motor between the first-stage joint and the second-stage joint, between the second-stage joint and the third-stage joint, and between the third-stage joint and the switching joint; one end of the upright post is detachably connected with one end of the switching joint. Through rotatory arm, can rotate C type arm to being located vertical plane, C type arm can carry out the rotation in a circumferential direction in vertical direction after the starter motor, is convenient for scan the formation of image to horizontal article. Through the coordinated operation among a plurality of joints, the C-shaped arm can be controlled to move to any position in a space range.
In a further embodiment, the supporting mechanism further comprises a remote control trolley which runs in a preset area on the ground, and the upright post of the supporting mechanism is detachably connected with the remote control trolley; the remote control trolley comprises a driving assembly, a lifting assembly and a rotating assembly, wherein the rotating assembly is arranged above the lifting assembly, and the stand column is fixedly arranged on the rotating assembly. The remote control trolley is remotely controlled by an operator to drive the CT imaging device to move to a preset position, the lifting assembly is used for driving the CT imaging device to lift, the rotating assembly is used for driving the CT imaging device to rotate along a rotating center, and the actions are cooperated to enable the CT imaging device to reach a measured object and move to a height corresponding to the measured object.
In a further embodiment, the control signals of the X-ray machine and the detector and the data signals of the detector are transmitted to an upper computer in a wired slip ring mode or a wireless mode; the balancing weight of predetermined quality is installed to one side of X-ray machine or detector for the total center of gravity of C type arm, X-ray machine, detector is located on the rotation axis, and whole focus can not remove when rotatory like this, is favorable to keeping stable, obtains good formation of image and rebuilds the effect.
A working method of a portable X-ray CT imaging device comprises the following steps:
and 3, when the scanning device performs rotary scanning, placing the detected object below the C-shaped arm, taking a motor shaft of the driving motor as a rotation center, rotating the rotary joint at a constant speed, collecting images, and reconstructing the images by a CT algorithm to form three-dimensional images.
In a further embodiment, the distance between the driving motor and the X-ray machine is D1, the distance between the driving motor and the detector is D2, and when the transverse dimension of the detector is L and the transverse maximum dimension of the object to be detected is D, the transverse opening angle of the beam emitted by the X-ray machine is effectively utilized
Satisfies the following conditions:
；
；
order to
Then at this time
Then there is D<L。
Has the advantages that: the invention relates to a portable X-ray CT imaging device and a working method thereof.A driving motor is arranged to control a C-shaped arm to rotate at a constant speed, an X-ray machine emits rays when the C-shaped arm rotates, the rays penetrate through an object to be detected corresponding to the position of the driving motor and form an image on a detector, and the detector transmits an image signal to computer equipment through wire or wireless to form a three-dimensional image. The moving track of a ray source of the X-ray machine is not required to be controlled by hands in the whole detection process, and the X-ray machine circumferentially rotates at a constant speed, so that accurate voxel data can be conveniently obtained.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic diagram of an operation process of the first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 4 is a schematic diagram of the motion trajectory of the present invention.
Fig. 5 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a fourth embodiment of the present invention.
Fig. 7 is a top view of a fourth embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a robot according to a fourth embodiment of the present invention.
Fig. 9 is a perspective view of a fifth embodiment of the present invention.
Fig. 10 is a partially disassembled schematic view of the remote control car in the fifth embodiment of the invention.
The figures are numbered: the device comprises a ray source 1, a detector 2, a C-shaped arm 3, a rotary joint 4, a cantilever 5, a handle 6, an object to be detected 7, a button 8, an upright post 9, a mechanical arm 10, a first joint 1001, a second joint 1002, a third joint 1003, a transfer joint 1004, a stepping motor 1005, a driving base 1006, a remote control trolley 11, a driving wheel 1101, a motor support 1102, a driving support 1103, an adjustable speed motor 1104 and a swing rod 1105.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the detailed details are shown in fig. 2 to 10: the invention discloses a portable X-ray CT imaging device and a working method thereof, and the implementation mode is as follows:
the first embodiment is as follows:
as shown, a portable X-ray CT imaging apparatus includes: the X-ray CT imaging device comprises a C-shaped arm 3, an X-ray machine, a detector 2, a driving motor, a cantilever 5 and a supporting mechanism, wherein the supporting mechanism plays a role in supporting the portable X-ray CT imaging device, one end of the cantilever 5 is connected with the supporting mechanism, the other end of the cantilever 5 is connected with the C-shaped arm 3 through a rotary joint 4, two ends of the C-shaped arm 3 are respectively connected with the X-ray machine and the detector 2, a ray source 1 of the X-ray machine faces the detector 2, and a receiving surface of the detector 2 faces the X-ray machine; the detector 2 transmits the image to a computer device through wireless transmission, and the image is reconstructed through a CT algorithm to form a three-dimensional image.
As a preferable scheme, the rotary joint comprises a driving motor, a motor shaft of the driving motor is perpendicular to the cantilever, and the motor shaft of the driving motor is connected with the C-shaped arm through a coupler; the distance between the driving motor and the X-ray machine is d1, the distance between the driving motor and the detector is d2, and d1 is larger than d 2. When the transverse (vertical to the rotating shaft) dimension of the detector is L and the transverse maximum dimension of the detected object is D, the transverse opening angle theta for effectively utilizing the beam ray of the X-ray machine satisfies the following conditions: sin (theta/2) = (D/2)/D1, tan (theta/2) = (L/2)/(D1+ D2), generally the beam angle is relatively small, and if approximate sin (theta/2) ≈ tan (theta/2), D2/D1 ≈ L/D-1. D < L is required, otherwise, the detected object cannot form a complete projection image on the detector. It is desirable to have D as close to L as possible to make full use of the detector area, so design considerations ensure that D2/D1 is as small as possible. Therefore, in the present embodiment, the scheme of d2= d1/2 is adopted. In practical engineering, the proportional relation between d1 and d2 can be adjusted by only satisfying the above formula, and the scheme of d2= d1/2 is only an example and should not be construed as limiting the invention itself.
The C-shaped arm can be controlled to rotate by controlling the starting of the driving motor, the C-shaped arm can rotate circumferentially at a constant speed, the scanning device can be kept in a stable working state, and each voxel datum can be accurately obtained. In the rotation process of the C-shaped arm, an object to be detected is placed at the position opposite to the driving motor, and at the moment, a ray source of the X-ray machine penetrates through the object to be detected and forms an image on the detector; because the distance between the X-ray machine and the object to be detected is greater than the distance between the detector and the object to be detected, the X-ray machine can penetrate through a larger area of the object to be detected under the condition that the angle of a ray source of the X-ray machine is unchanged.
As a preferred scheme, the supporting mechanism comprises a handle, the handle is arranged at the outer side of the cantilever, a handle control end is arranged in the handle, and the handle control end can receive a scanning command of computer equipment and control the working state of the driving motor; the handle is provided with a button. When the cantilever type scanning device is used, an operator can hold the handle to support the cantilever, when the handle control end receives a scanning command, the handle control end controls the driving motor to rotate, the C-shaped arm rotates along with the driving motor, and the object to be detected is convenient to scan. When the operator presses the button, the button control end is in a connected state, and the handle control end can receive a scanning command from the computer equipment, so that the single operator can conveniently operate the device.
Preferably, the supporting mechanism comprises a vertical column, the vertical column is movably arranged on the ground, and the cantilever is connected with one end of the vertical column far away from the ground. Fix the cantilever through the stand, when examining, directly place the stand subaerial, the operator of being convenient for uses.
Preferably, the support mechanism comprises a mechanical arm arranged on the ground, and the upright post is detachably connected with one end of the mechanical arm; the mechanical arm comprises a driving base, a primary joint movably connected to the driving base, a secondary joint movably connected with one end of the primary joint, a tertiary joint movably connected with one end of the secondary joint, and a switching joint movably connected with one end of the tertiary joint; the driving base is respectively driven and controlled by a first motor between the first-stage joint and the second-stage joint, between the second-stage joint and the third-stage joint, and between the third-stage joint and the switching joint; one end of the upright post is detachably connected with one end of the switching joint. Through rotatory arm, can rotate C type arm to being located vertical plane, C type arm can carry out the rotation in a circumferential direction in vertical direction after the starter motor, is convenient for scan the formation of image to horizontal article. Through the coordinated operation among a plurality of joints, the C-shaped arm can be controlled to move to any position in a space range.
As a preferable scheme, the supporting mechanism further comprises a remote control trolley which travels in a preset area on the ground, and the upright post of the supporting mechanism is detachably connected with the remote control trolley; the remote control trolley comprises a driving assembly, a lifting assembly and a rotating assembly, wherein the rotating assembly is arranged above the lifting assembly, and the stand column is fixedly arranged on the rotating assembly. The remote control trolley is remotely controlled by an operator to drive the CT imaging device to move to a preset position, the lifting assembly is used for driving the CT imaging device to lift, the rotating assembly is used for driving the CT imaging device to rotate along a rotating center, and the actions are cooperated to enable the CT imaging device to reach a measured object and move to a height corresponding to the measured object.
As a preferred scheme, the control signals of the X-ray machine and the detector and the data signals of the detector are transmitted to an upper computer in a wired slip ring mode or a wireless mode; the balancing weight of predetermined quality is installed to one side of X-ray machine or detector for the total center of gravity of C type arm, X-ray machine, detector is located on the rotation axis, and whole focus can not remove when rotatory like this, is favorable to keeping stable, obtains good formation of image and rebuilds the effect.
The specific working process is as follows: after the device is assembled, the object to be measured is placed below the C-shaped arm, the handle is used as a fulcrum at the moment, the other hand is placed at the tail end of the cantilever, the scanning device is kept balanced, and the device is adjusted to the height corresponding to the object to be measured. The computer equipment sends a scanning command to the handle control end through software, the handle control end controls the motor to rotate after receiving a signal, the X-ray machine sends rays, the rays penetrate through an object to be detected, the detector collects images, and the detector transmits the images to the computer equipment through wireless transmission. When the scanning device performs rotary scanning, the schematic diagram of the motion track is shown in fig. 4, the detected object is placed below the C-shaped arm, the shadow part in the diagram is the object to be detected, the motor shaft of the driving motor is used as the rotation center, and the small circle and the large circle are the rotation tracks of the detector and the X-ray machine respectively. The rotary joint rotates at a constant speed and acquires images, and the images are reconstructed by a CT algorithm to form a three-dimensional image.
Example two:
a portable X-ray CT imaging apparatus, which is different from the first embodiment in that: the handle is provided with a button which can control the working state of the control end of the handle.
The specific working process is as follows: when the equipment is operated by a single person, an operator can enable the handle control end to be connected by pressing the button, the handle control end can receive a scanning command of the computer at the moment, software on the computer equipment is in a waiting state before the equipment is held by hands to scan an article, and the equipment informs the computer equipment to start to collect data while controlling scanning.
Example three:
a portable X-ray CT imaging apparatus, which is different from the first and second embodiments described above in that: the supporting mechanism comprises an upright post, the upright post is erected on the ground, and the cantilever is connected with one end, far away from the ground, of the upright post. The end of the upright column, which is in contact with the ground, is connected with a balancing weight, the balancing weight reduces the possibility of shaking of the upright column when the cantilever is supported, the height of the upright column can be adjusted, and the method for adjusting the height belongs to a working method well known by the technical personnel in the field, and is not described herein again. The cantilever is supported by the upright column, so that the cantilever is convenient to move and implement.
Example four:
a portable X-ray CT imaging device is different from the first embodiment, the second embodiment and the third embodiment in that: the supporting mechanism comprises a mechanical arm arranged on the ground, and the upright post is detachably connected with one end of the mechanical arm.
The specific working process is as follows: the C-shaped arm can be rotated to be positioned on a vertical plane by rotating the mechanical arm; four joints on the mechanical arm, namely a first joint, a second joint, a third joint and a transfer joint are movable respectively, and power is output through a stepping motor; meanwhile, the rotary motion in the horizontal direction is formed between the driving base and the first joint; through the swing of the four joints and the rotary motion of the driving base, the C-shaped arm can be controlled to move to any position in a space range. After the driving motor is started, the C-shaped arm can rotate circumferentially in the vertical direction, and scanning imaging of transverse articles is facilitated.
Example five:
a portable X-ray CT imaging device is different from the first embodiment, the second embodiment and the third embodiment in that: the supporting mechanism comprises a remote control trolley which travels in a preset area on the ground, and an upright post of the supporting mechanism is detachably connected with the remote control trolley; the remote control trolley comprises a base assembly, a driving assembly, a lifting assembly and a rotating assembly, wherein the rotating assembly is installed above the lifting assembly, and the stand column is fixedly installed on the rotating assembly. The basic assembly comprises a frame and a vehicle chassis, the driving assembly is installed in the middle of the vehicle chassis and comprises a driving support, a motor support, a second motor, a swing rod, a driving wheel, a guide rod and a pressure spring, the driving support is hinged to the motor supports at the two ends of the driving support through the swing rod, a speed regulating motor is fixedly installed on the inner side of the motor support, a driving wheel is arranged on the outer side of the motor support, and the driving wheel is connected with an output shaft of the speed regulating motor. The two opposite swing rods are hinged through a connecting rod, one end of the guide rod is hinged to the driving support, the other end of the guide rod is clamped on the connecting rod, the pressure spring is sleeved on the guide rod, the rotary assembly comprises a servo rotary table, the lifting assembly comprises a lead screw lifter, and the lead screw lifter is installed on the servo rotary table.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A portable X-ray CT imaging apparatus, comprising: the X-ray machine and the detector are connected with each other through a rotary joint, a ray source of the X-ray machine faces the detector, and a receiving surface of the detector faces the X-ray machine;
the detector transmits the image to a computer device through a preset transmission mode to form a three-dimensional image.
2. A portable X-ray CT imaging apparatus according to claim 1, characterized in that: the rotary joint comprises a driving motor, a motor shaft of the driving motor is perpendicular to the cantilever, and the motor shaft of the driving motor is connected with the C-shaped arm through a coupler; the distance between the driving motor and the X-ray machine is d1, the distance between the driving motor and the detector is d2, and d1 is larger than d 2.
3. A portable X-ray CT imaging apparatus according to claim 2, characterized in that: the supporting mechanism comprises a handle, the handle is arranged on the outer side of the cantilever, a handle control end is arranged in the handle, and the handle control end can receive a scanning command of computer equipment and control the working state of the driving motor; the handle is provided with a button.
4. A portable X-ray CT imaging apparatus according to claim 1, characterized in that: the supporting mechanism comprises an upright post, the upright post is movably arranged on the ground, and the cantilever is connected with one end, far away from the ground, of the upright post.
5. A portable X-ray CT imaging apparatus as recited in claim 4, wherein: the supporting mechanism comprises a mechanical arm arranged on the ground, and the upright post is detachably connected with one end of the mechanical arm; the mechanical arm comprises a driving base, a primary joint movably connected to the driving base, a secondary joint movably connected with one end of the primary joint, a tertiary joint movably connected with one end of the secondary joint, and a switching joint movably connected with one end of the tertiary joint; the driving base is respectively driven and controlled by a first motor between the first-stage joint and the second-stage joint, between the second-stage joint and the third-stage joint, and between the third-stage joint and the switching joint; one end of the upright post is detachably connected with one end of the switching joint.
6. A portable X-ray CT imaging apparatus as recited in claim 4, wherein: the supporting mechanism further comprises a remote control trolley which runs in a preset area on the ground, and an upright post of the supporting mechanism is detachably connected with the remote control trolley; the remote control trolley comprises a driving assembly, a lifting assembly and a rotating assembly, wherein the rotating assembly is arranged above the lifting assembly, and the stand column is fixedly arranged on the rotating assembly.
7. A portable X-ray CT imaging apparatus according to any one of claims 1 to 6, characterized in that: the control signals of the X-ray machine and the detector and the data signals of the detector are transmitted to an upper computer in a wired slip ring mode or a wireless mode; and a balancing weight with preset mass is arranged on one side of the X-ray machine or the detector, so that the total gravity center of the C-shaped arm, the X-ray machine and the detector is positioned on the rotating shaft.
8. The method of operating a portable X-ray CT imaging apparatus according to any of claims 1 to 7, comprising the steps of:
step 1, after the device is assembled, placing an article to be detected below a C-shaped arm, taking a handle as a fulcrum at the moment, placing the other hand at the tail end of a cantilever to keep the scanning device balanced, and adjusting the device to a height corresponding to the article to be detected; the handle is provided with a button which can control the working state of the control end of the handle; when the equipment is operated by a single person, an operator enables the handle control end to be connected by pressing the button, the handle control end can receive a scanning command of the computer at the moment, software on the computer equipment is in a waiting state before the equipment is held by hands to scan an article, and the equipment informs the computer equipment to start to collect data while controlling scanning;
step 2, the computer equipment sends a scanning command to the handle control end through software, the handle control end controls the motor to rotate after receiving a signal, the X-ray machine sends rays, the rays penetrate through an object to be detected, the detector collects images, and the detectors transmit the images to the computer equipment through wireless transmission;
and 3, when the scanning device performs rotary scanning, placing the detected object below the C-shaped arm, taking a motor shaft of the driving motor as a rotation center, rotating the rotary joint at a constant speed, collecting images, and reconstructing the images by a CT algorithm to form three-dimensional images.
9. The method of claim 8, wherein the method further comprises: the distance between the driving motor and the X-ray machine is D1, the distance between the driving motor and the detector is D2, and when the transverse size of the detector is L and the transverse maximum size of the detected object is D, the transverse opening angle of the beam emitted by the X-ray machine is effectively utilized
Satisfies the following conditions:；
；
order to
Then at this time
Then there is D<L。
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| CN201911058074.XA CN110763707A (en) | 2019-11-01 | 2019-11-01 | Portable X-ray CT imaging device and working method thereof |
| PCT/CN2020/089061 WO2021082388A1 (en) | 2019-11-01 | 2020-05-07 | Portable x-ray ct imaging device and operating method therefor |
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| CN111281407A (en) * | 2020-02-17 | 2020-06-16 | 京东方科技集团股份有限公司 | C-shaped arm X-ray equipment |
| CN112525929A (en) * | 2020-12-02 | 2021-03-19 | 南京理工大学 | Dangerous goods detection device of mobile X-ray machine |
| WO2021082388A1 (en) * | 2019-11-01 | 2021-05-06 | 南京全设智能科技有限公司 | Portable x-ray ct imaging device and operating method therefor |
| WO2021082387A1 (en) * | 2019-11-01 | 2021-05-06 | 南京全设智能科技有限公司 | Portable x-ray ct imaging device |
| CN112924479A (en) * | 2021-01-28 | 2021-06-08 | 山东科技大学 | On-site assembly type annular scanning industrial CT machine and operation method |
| CN113432671A (en) * | 2021-06-07 | 2021-09-24 | 江苏斯尔邦石化有限公司 | Device and method for measuring interface of charge level indicator based on EVA radioactive charge level indicator |
| EP4141427A4 (en) * | 2020-11-18 | 2024-06-05 | Jed Co., Ltd | X-ray inspection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10096148B1 (en) * | 2017-04-26 | 2018-10-09 | The Aerospace Corporation | Portable x-ray computed tomography |
| CN107498589A (en) * | 2017-07-31 | 2017-12-22 | 北京紫方启研科技有限公司 | Robot with radioscopy imaging function |
| CN208784756U (en) * | 2018-01-31 | 2019-04-26 | 邦盛医疗装备（天津）股份有限公司 | DR robot with sixdegree-of-freedom simulation |
| CN110006931A (en) * | 2019-04-23 | 2019-07-12 | 西安增材制造国家研究院有限公司 | A kind of industry CT and its application online |
| CN110763707A (en) * | 2019-11-01 | 2020-02-07 | 南京全设智能科技有限公司 | Portable X-ray CT imaging device and working method thereof |
-
2019
- 2019-11-01 CN CN201911058074.XA patent/CN110763707A/en not_active Withdrawn
-
2020
- 2020-05-07 WO PCT/CN2020/089061 patent/WO2021082388A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021082388A1 (en) * | 2019-11-01 | 2021-05-06 | 南京全设智能科技有限公司 | Portable x-ray ct imaging device and operating method therefor |
| WO2021082387A1 (en) * | 2019-11-01 | 2021-05-06 | 南京全设智能科技有限公司 | Portable x-ray ct imaging device |
| CN111281407A (en) * | 2020-02-17 | 2020-06-16 | 京东方科技集团股份有限公司 | C-shaped arm X-ray equipment |
| CN111281407B (en) * | 2020-02-17 | 2023-09-29 | 京东方科技集团股份有限公司 | C-shaped arm X-ray equipment |
| EP4141427A4 (en) * | 2020-11-18 | 2024-06-05 | Jed Co., Ltd | X-ray inspection device |
| CN112525929A (en) * | 2020-12-02 | 2021-03-19 | 南京理工大学 | Dangerous goods detection device of mobile X-ray machine |
| CN112924479A (en) * | 2021-01-28 | 2021-06-08 | 山东科技大学 | On-site assembly type annular scanning industrial CT machine and operation method |
| CN113432671A (en) * | 2021-06-07 | 2021-09-24 | 江苏斯尔邦石化有限公司 | Device and method for measuring interface of charge level indicator based on EVA radioactive charge level indicator |
| CN113432671B (en) * | 2021-06-07 | 2024-03-15 | 江苏斯尔邦石化有限公司 | Level gauge interface measuring device and method based on EVA (ethylene-vinyl acetate) radioactive level gauge |
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| WO2021082388A1 (en) | 2021-05-06 |
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Application publication date: 20200207 |