CN105445300A - Full-field rod-shaped sample CT scanning device - Google Patents
Full-field rod-shaped sample CT scanning device Download PDFInfo
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- CN105445300A CN105445300A CN201510960131.9A CN201510960131A CN105445300A CN 105445300 A CN105445300 A CN 105445300A CN 201510960131 A CN201510960131 A CN 201510960131A CN 105445300 A CN105445300 A CN 105445300A
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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]
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Abstract
The invention provides a full-field rod-shaped sample CT scanning device. The full-field rod-shaped sample CT scanning device comprises a supporting device and a scanning device; the supporting device comprises a platform, a first supporting frame, and a second supporting frame; the first supporting frame and the second supporting frame are arranged on the two ends of the platform, and are used for supporting a sample to be measured; the scanning device comprises an X ray source and a detector; and the detector is arranged at a position opposite to the position of the X ray source. Flat laying rotating of the sample to be measured, and ray source detector parallel translation are adopted, so that equipment size is reduced, rotating semidiameter of the sample to be measured is reduced compared with that when the ray source and the detector are rotated, inertia is low, and precision is high.
Description
Technical field
The invention belongs to detecting instrument field, especially relate to full visual field rod-like samples CT scan equipment.
Background technology
CT scan technology (ComputedTomography), i.e. computerized tomography, be applied to Medical Imaging the earliest, be introduced into industrial nondestructive testing field subsequently, due to its non-intrusive, glitch-free examine repair, CT scan technology have also been obtained good application in fields such as agriculture and forestry, geophysics, chemical industry.And in these areas, often need to carry out whole imaging to the long sample of bar shaped (as bar-shaped and needle-like) class, such as in petroleum detection field, the rock core of strip is analyzed, the Three Dimensions Structure on its surface can only be observed by conventional means and estimate the Three Dimensions Structure of its inside, result has randomness, and core surface cuts impact when being subject to drilling through rock core, surface characteristics has a lot of change, not representative.Therefore total rock heart CT scan technology is introduced in rock core structure analysis, namely utilize X ray 3-D scanning imaging technique when not destroying rock core, three-dimensional feature observation is carried out to rock core.
The analysis of CT technology to rock core inside result has vital role, mainly contain three kinds of CT equipment at present and three-dimensional structural analysis is carried out to rock core inside result, and all there is respective drawback in use in these three kinds of CT equipment: (1) utilizes existing medical CT to scan rock core, but equipment volume is large, be not easy to long-distance transportation, and also need to configure plumbous room in addition, fund input is large; (2) rock core translation the core scanner of rotated versions, equipment is subject to rock core effect length, and equipment is longer, and transport is inconvenient, manufactures precision and is difficult to ensure; (3) rock core vertically places form core scanner device, and radiographic source rotates and upper and lower translation, and the rotor rotator inertia of this form scanner is large, and the impact by electric wiring cabling can not realize continuity and scan, and plant efficiency is not high; If employing slip ring, continuity scanning can be realized, but equipment purchase and maintenance cost can be improved.
Therefore to design a kind of CT scan equipment carrying out whole imaging compared with surplus matter for bar-shaped grade be this area problem demanding prompt solution.
Summary of the invention
For overcoming prior art Problems existing, the present invention is intended to propose a kind of CT scan equipment carrying out whole imaging for bar-shaped grade compared with surplus matter.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of full visual field rod-like samples CT scan equipment, comprise bracing or strutting arrangement and scanister, described bracing or strutting arrangement comprises platform, the first bracing frame, the second bracing frame, and described first bracing frame and the second bracing frame are arranged on platform two ends, for supporting measured object; Described scanister comprises to the x-ray source of measured object radiation X ray and the detector for receiving the X ray through measured object, described detector be arranged on x-ray source just to position.
Further, described platform surface is provided with the directive slide track parallel with measured object, directive slide track is provided with level run platform, described x-ray source is fixed by x-ray source support and level run platform, and described detector is fixed by detector carriage and level run platform.
Further, described level run platform drives the tangential movement on directive slide track of tangential movement platform by horizontal movement device.
Further, this equipment also comprises the rotation device driving measured object around its horizontal direction central axis continuous rotation.
Further, described rotation device is the first drive motor being arranged on the first bracing frame or the second bracing frame side.
Further, described horizontal movement device comprises and is arranged at platform upper surface and the ball-screw be connected with tangential movement platform (10) and the second drive motor being arranged on ball-screw one end.
Further, described detector is arranged on the below of x-ray source and corresponding with x-ray source position at vertical direction.
Further, described detector is arranged on the horizontal direction of x-ray source and corresponding with the position of x-ray source.
Further, the outer setting of described bracing or strutting arrangement and scanister has full protection shielded box, described full protection shielded box is provided with case lid and the hanging apparatus for lifting measured object.
Relative to prior art, the full visual field of the present invention rod-like samples CT scan equipment has following advantage:
(1) the full visual field of the present invention rod-like samples CT scan equipment adopts measured object to lie low rotation, radiographic source detector translation mode, rotates compare that measured object radius of turn is little, inertia is little with radiographic source and detector;
(2) the full visual field of the present invention rod-like samples CT scan equipment can realize continuity rotary scanning, and scan efficiency is higher;
(3) the full visual field of the present invention rod-like samples CT scan equipment adopts all standing lead shield outer cover, without the need to additionally building safeguard as plumbous room, security is high, reduce equipment volume simultaneously, bracing or strutting arrangement and scanister are all arranged in full protection shielded box, can move and transport this equipment flexibly, can be suitable for as the primary scenes such as rock core buying detect measured object;
(4) the full visual field of the present invention rod-like samples CT scan equipment is by the detection of the club-shaped material of the applicable different length of distance between adjustment two back up pad.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the inner structure schematic diagram of the full visual field rod-like samples CT scan equipment described in the embodiment of the present invention;
Fig. 2 is the one-piece construction schematic diagram of the full visual field rod-like samples CT scan equipment described in the embodiment of the present invention.
Description of reference numerals:
1, the first bracing frame, 2, measured object, 3, x-ray source, 4, x-ray source support, 5, the second bracing frame, 6, the first drive motor, 7, platform, the 8, second drive motor, 9, detector, 10, level run platform, 11, detector carriage, 12, hanging apparatus, 13, full protection shielded box, 14, case lid.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood by concrete condition.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of full visual field rod-like samples CT scan equipment, as shown in Figure 1, this scanner inner structure comprises the first bracing frame 1, measured object 2, x-ray source 3, x-ray source support 4, second bracing frame 5, first drive motor 6, platform 7, second drive motor 8, detector 9, level run platform 10, detector carriage 11, hanging apparatus 12.
X-ray source 3 is fixed on level run platform 10 by radiographic source support 4, for measured object 2 radiation X ray.Detector 9 and x-ray source 3 in the vertical direction (or in the horizontal direction or inclination certain angle) are relative, be fixed on level run platform 10 by detector carriage 11, for receiving X ray through measured object as data for projection, described detector 9 is flat panel detector.
Measured object 2 is horizontally disposed with, be fixed between x-ray source 3 and detector 9 by the first bracing frame 1 and the second bracing frame 5, the end of measured object 2 is connected with the first drive motor 6 being arranged on the second bracing frame 5 side, and the first drive motor 6 drives measured object 2 to rotate around its horizontal direction central axis.Level run platform is connected with horizontally disposed ball-screw 10 times, is connected with the second drive motor 8, second drive motor 8 controls ball-screw forward or reverse to make level run platform 10 side-to-side movement on platform 7 in ball-screw one end.Wherein, the first drive motor 6 and the second drive motor 8 can be alternating current generator or direct current generator.
Full visual field rod-like samples CT scan equipment inner structure is positioned in full protection shielded box 13, and full protection shielded box arranges case lid 14, is convenient to picking and placeing of sample, and there is hanging apparatus 12 casing 13 side for lifting measured object 2.
The principle of work of this full visual field CT scan equipment: x-ray source 3 is relative with detector 9 does translation motion together, realizes axial scan.Measured object 2 does along its horizontal center line axis and rotates, and realizes radial scan, until rotating 360 degrees.X-ray beam carries out once irradiating to measured object 2 subregion, and detector 9 receives the data for projection directly related with measured object 2 attenuation coefficient.After single pass terminates, just can reconstruct two dimensional image about detection plane by image reconstruction algorithm when data for projection to be sent into after computing machine, formation three-dimensional data, image intensity value is corresponding with the attenuation coefficient of tissue.
This full visual field rod-like samples CT scan equipment can realize spiral scan and scan piecemeal, and wherein spiral scan process is:
(1) measured object 2 is installed between the first bracing frame 1 and the second bracing frame 5, starts the first drive motor 6, drive measured object 2 to rotate;
(2) open x-ray source 3 to start to gather CT data;
(3) second drive motor 8 drive level run platform 10 from the second bracing frame 5 side uniform motion, and treat that tangential movement platform 10 moves to the first bracing frame 1 place, scanning completes.
The scanning process piecemeal of this full visual field rod-like samples CT scan equipment is:
(1) measured object 2 is installed between the first bracing frame 1 and the second bracing frame 5, starts the first drive motor 6, drive measured object 2 to rotate;
(2) second drive motor 8 drive level run platform 10 stop motion after the second bracing frame 5 lateral movement one segment distance;
(3) open x-ray source 3, start to scan;
(4) scanned one week, the second drive motor 8 drives tangential movement platform 10 to continue operation one segment distance, so circulates, until scanned.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a full visual field rod-like samples CT scan equipment, it is characterized in that: comprise bracing or strutting arrangement and scanister, described bracing or strutting arrangement comprises platform (7), the first bracing frame (1), the second bracing frame (5), described first bracing frame (1) and the second bracing frame (5) are arranged on platform (7) two ends, for supporting measured object (2); Described scanister comprises to the x-ray source (3) of measured object (2) radiation X ray with for receiving the detector (9) through the X ray of measured object (2), described detector (9) be arranged on x-ray source (3) just to position, can vertically place or horizontal positioned.
2. the full visual field according to claim 1 rod-like samples CT scan equipment, it is characterized in that: described platform (7) surface is provided with the directive slide track parallel with measured object (2), directive slide track is provided with level run platform (10), described x-ray source (3) is fixed by x-ray source support (4) and level run platform (10), and described detector (9) is fixed by detector carriage (11) and level run platform (10).
3. the full visual field according to claim 2 rod-like samples CT scan equipment, is characterized in that: described level run platform (10) drives tangential movement platform (10) tangential movement on directive slide track by horizontal movement device.
4. the full visual field according to claim 3 rod-like samples CT scan equipment, is characterized in that: described horizontal movement device comprises and is arranged at platform (7) upper surface and the leading screw be connected with tangential movement platform (10) and the second drive motor (8) being arranged on leading screw one end.
5. the full visual field according to claim 1 and 2 rod-like samples CT scan equipment, is characterized in that: this equipment also comprises the rotation device driving measured object (2) around its horizontal direction central axis continuous rotation.
6. the full visual field according to claim 5 rod-like samples CT scan equipment, is characterized in that: described rotation device is for being arranged on first drive motor (6) of the first bracing frame (1) or the second bracing frame (5) side.
7. the full visual field according to claim 1 rod-like samples CT scan equipment, is characterized in that: described detector (9) is arranged on the below of x-ray source (3) and corresponding with x-ray source (3) position at vertical direction.
8. the full visual field according to claim 1 rod-like samples CT scan equipment, is characterized in that: described detector (9) is arranged on the horizontal direction of x-ray source (3) and corresponding with the position of x-ray source (3).
9. the full visual field according to claim 1 and 2 rod-like samples CT scan equipment, it is characterized in that: the outer setting of described bracing or strutting arrangement and scanister has full protection shielded box (13), described full protection shielded box (13) being provided with case lid (14) and the hanging apparatus (12) for lifting measured object (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510960131.9A CN105445300A (en) | 2015-12-16 | 2015-12-16 | Full-field rod-shaped sample CT scanning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510960131.9A CN105445300A (en) | 2015-12-16 | 2015-12-16 | Full-field rod-shaped sample CT scanning device |
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| CN105445300A true CN105445300A (en) | 2016-03-30 |
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| CN201510960131.9A Pending CN105445300A (en) | 2015-12-16 | 2015-12-16 | Full-field rod-shaped sample CT scanning device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290418A (en) * | 2016-08-31 | 2017-01-04 | 天津三英精密仪器股份有限公司 | A kind of CT detector being suitable for long sample |
| CN112198182A (en) * | 2020-10-10 | 2021-01-08 | 中国兵器工业第五九研究所 | Device and method for detecting content of chloride ions in atmospheric environment |
| CN112204386A (en) * | 2018-05-23 | 2021-01-08 | 沙特阿拉伯石油公司 | Method and apparatus for CT scanning of longer whole core |
| CN114166873A (en) * | 2021-12-08 | 2022-03-11 | 煤炭科学研究总院 | Rock core holder and rock core displacement test method |
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| CN104698016A (en) * | 2015-03-26 | 2015-06-10 | 重庆大学 | Multi-time horizontal movement staggered spiral industrial CT scanning imaging method |
| CN105092617A (en) * | 2015-09-18 | 2015-11-25 | 重庆大学 | Bimodal molecular imaging system based on X-ray energy spectrum CT and X-ray fluorescence CT technology |
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2015
- 2015-12-16 CN CN201510960131.9A patent/CN105445300A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2211708A (en) * | 1987-10-27 | 1989-07-05 | Ois Engineering Limited | Radiographic detection of pipe corrosion under lagging |
| CN101140246A (en) * | 2006-09-06 | 2008-03-12 | 依科视朗国际射线有限公司 | X-ray CT test system and CTmethod for testing objects |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290418A (en) * | 2016-08-31 | 2017-01-04 | 天津三英精密仪器股份有限公司 | A kind of CT detector being suitable for long sample |
| CN112204386A (en) * | 2018-05-23 | 2021-01-08 | 沙特阿拉伯石油公司 | Method and apparatus for CT scanning of longer whole core |
| CN112198182A (en) * | 2020-10-10 | 2021-01-08 | 中国兵器工业第五九研究所 | Device and method for detecting content of chloride ions in atmospheric environment |
| CN114166873A (en) * | 2021-12-08 | 2022-03-11 | 煤炭科学研究总院 | Rock core holder and rock core displacement test method |
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Application publication date: 20160330 |