CN111624424A - CT slip ring test fixture - Google Patents
CT slip ring test fixture Download PDFInfo
- Publication number
- CN111624424A CN111624424A CN202010474283.9A CN202010474283A CN111624424A CN 111624424 A CN111624424 A CN 111624424A CN 202010474283 A CN202010474283 A CN 202010474283A CN 111624424 A CN111624424 A CN 111624424A
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- CN
- China
- Prior art keywords
- slip ring
- error code
- signal receiving
- signal
- test fixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a CT slip ring test tool, which comprises a test rack, wherein an annular fixing frame is fixedly connected to the test rack, a rotating disc is installed in the annular fixing frame, a CT slip ring is installed on the rotating disc, the rotating disc is driven to rotate by a motor, a plurality of electric brushes are installed on the test rack, the electric brushes correspond to conducting rings, a power supply is connected to the electric brushes, an error code detector is installed on the rotating disc, the conducting rings are electrically connected with the error code detector, the error code detector comprises a signal sending part, the signal sending part is fixedly installed in an installation groove, the signal sending part is in communication connection with a signal sending antenna, the test tool comprises an eye pattern instrument, the eye pattern instrument comprises a signal receiving part, the signal receiving part comprises a signal receiving antenna, and the distance. The invention provides a CT slip ring test tool which can be used for testing the reliability of wireless signal transmission and the service life of a loaded brush in the rotation process of a CT slip ring and is suitable for being used for testing a CT slip ring engineering prototype.
Description
Technical Field
The invention belongs to the technical field of CT slip ring test equipment, and particularly relates to a CT slip ring test tool.
Background
The CT slip ring is a large-scale disc slip ring applied to the CT industry, and realizes reliable transmission of data such as a power supply, a control signal, CAN bus communication and the like between a rotary detector and a scanning frame.
With the continuous development of the CT technology and the widening of the application field, the functions of the CT system are more and more, the types of signals required to be transmitted are gradually increased, and the sizes of the detected objects are also larger and larger, so that more and more signal channels of the matched CT slip ring are required, and the specification size of the central scanning aperture is also larger and larger.
The performance test and the service life test of the CT slip ring are mostly carried out after the product is shaped, and the wireless signal transmission reliability of the slip ring and the service life of the loaded electric brush are difficult to test in the engineering prototype stage of the CT slip ring. The test is carried out in the engineering prototype stage, the research and development efficiency can be improved, the research and development period is shortened, and the method has guiding significance on the research and development direction. Therefore, a testing tool suitable for being used in an engineering prototype stage of the CT slip ring needs to be designed.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the technical scheme that: a CT slip ring test tool comprises an insulating ring body, wherein a signal sending antenna is arranged on the outer circumferential surface of the insulating ring body, a plurality of annular grooves are formed in the front surface of the insulating ring body, a conducting ring is installed in each annular groove, a mounting groove communicated with the outer circumferential surface of the insulating ring body is formed in the back surface of the insulating ring body, the test tool comprises a test rack, an annular fixing frame is fixedly connected onto the test rack, a rotating disc is rotatably installed in the annular fixing frame through a rotary support, the CT slip ring is detachably installed on the rotating disc through a plurality of screws, the rotating disc is driven to rotate by a motor, a plurality of electric brushes are installed on the test rack and correspond to the conducting rings, the electric brushes are attached to the corresponding conducting rings, the electric brushes are connected with a power supply through wires, an, the signal transmission part is fixedly installed in the installation groove, the signal transmission part is in communication connection with the signal transmission antenna through the plug wire terminal, the test tool comprises an eye pattern instrument, the eye pattern instrument comprises a signal receiving part fixed on the annular fixing frame, the signal receiving part comprises a signal receiving antenna, and the distance between the signal receiving antenna and the signal transmission antenna is 1 mm.
Preferably, the rotating disc is fixedly provided with an error code instrument protection box, and the error code instrument is arranged in the error code instrument protection box.
Preferably, the error code instrument protection box is fixed on the rotating disk through a plurality of mounting frames, and the error code instrument protection box is close to the center of the rotating disk.
Preferably, the error code meter is connected with the signal transmitting part through an optical fiber jumper.
Preferably, the test rack is fixedly connected with an electric brush fixing and insulating frame, a plurality of electric brush fixing metal pieces are fixed on the electric brush fixing and insulating frame, and the electric brushes are respectively fixed on the electric brush fixing metal pieces.
Preferably, the signal receiving part is fixed on the annular fixing frame through a signal receiving antenna fixing frame.
Preferably, the signal receiving part is connected with the eye pattern instrument through an optical fiber jumper.
Preferably, the motor drives the rotating disc to rotate through a belt, and the motor is fixed on the test rack.
The invention has the beneficial effects that: the invention provides a CT slip ring test tool which can be used for testing the reliability of wireless signal transmission and the service life of a loaded brush in the rotation process of a CT slip ring, has the advantages of simple structure, convenience in operation and good test effect, and is suitable for being used for testing a CT slip ring engineering prototype.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
FIG. 3 is a schematic view of the present invention in use;
FIG. 4 is a schematic structural diagram of a CT slip ring;
fig. 5 is a schematic diagram of a structure of a signal receiving section;
FIG. 6 is a schematic view of a brush holder insulator frame;
fig. 7 is a schematic diagram of the structure of the signal transmitting section.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-7, a CT slip ring testing tool, wherein the CT slip ring 1 includes an insulating ring body 2, a signal transmitting antenna 3 is disposed on an outer circumferential surface of the insulating ring body 2, a plurality of annular grooves are disposed on a front surface of the insulating ring body 2, a conductive ring 4 is disposed in the annular groove, a mounting groove 5 communicating with the outer circumferential surface of the insulating ring body 2 is disposed on a back surface of the insulating ring body 2, the testing tool includes a testing frame 6, an annular fixing frame 7 is fixedly connected to the testing frame 6, a rotating disc 8 is rotatably mounted in the annular fixing frame 7 through a rotary support, the CT slip ring 1 is detachably mounted on the rotating disc 8 through a plurality of screws, the rotating disc 8 is driven by a motor 9 to rotate, a plurality of brushes 10 are mounted on the testing frame 6, the brushes 10 correspond to the conductive ring, install error code appearance 12 on the rotary disk 8, conducting ring 4 passes through wire electricity connection error code appearance 12, and error code appearance 12 is including signal transmission part 13, and signal transmission part 13 fixed mounting is in mounting groove 5, and signal transmission part 13 passes through plug wire terminal 14 and signal transmission antenna 3 communication connection, test fixture includes eye pattern appearance 15, and eye pattern appearance 15 is including fixing signal reception part 16 on cyclic annular mount 7, and signal reception part 16 is including signal reception antenna 17, and signal reception antenna 17 is 1mm with signal transmission antenna 3 distance. The CT slip ring 1 is driven by a motor 9 to rotate, a power supply 11 supplies power to a conducting ring 4 through an electric brush 10, the conducting ring 4 is connected with an error code meter 12 through a conducting wire to supply power to an error code meter 12, a signal sent by the error code meter 12 is transmitted to a signal sending antenna 3 of the CT slip ring 1 through a signal sending part 13, an eye pattern meter 15 receives the signal of the signal sending antenna 3 through a signal receiving part 16 to form an eye pattern, and the CT slip ring 1 forms a signal transmission test and a service life test under the rotating condition.
Further, an error code instrument protection box 18 is fixedly installed on the rotating disc 8, and the error code instrument 12 is installed in the error code instrument protection box 18. The error detector protection box 18 protects the error detector 12.
Further, the error code instrument protection box 18 is fixed on the rotating disk 8 through a plurality of mounting frames 19, and the error code instrument protection box 12 is close to the center of the rotating disk 8. The rotation stroke of the error code instrument 12 is reduced, the influence of the centrifugal force on the error code instrument 12 is reduced, and the influence on the internal structure of the error code instrument 12 is avoided.
Further, the error detector 12 is connected with the signal transmitting part 13 through an optical fiber jumper.
Further, an electric brush fixing insulating frame 20 is fixedly connected to the testing machine frame 6, a plurality of electric brush fixing metal pieces 21 are fixed to the electric brush fixing insulating frame 20, and the electric brushes 10 are respectively fixed to the electric brush fixing metal pieces 21.
Further, the signal receiving section 16 is fixed to the ring-shaped holder 7 by a signal receiving antenna holder 22.
Further, the signal receiving portion 16 is connected to the eye pattern apparatus 15 by a fiber jumper.
Further, the motor 9 drives the rotating disc 8 to rotate through the belt 22, and the motor 9 is fixed on the test rack 1.
It should be noted that the technical features of the brush 10, the error detector 12, the eye pattern meter 15, the signal transmitting portion 13, the signal receiving portion 16, etc. related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of the technical features may be conventional in the art, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described.
Having described preferred embodiments of the present invention in detail, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A CT slip ring test fixture comprises an insulating ring body, wherein a signal sending antenna is arranged on the outer circumferential surface of the insulating ring body, a plurality of annular grooves are formed in the front surface of the insulating ring body, a conducting ring is installed in each annular groove, and a mounting groove communicated with the outer circumferential surface of the insulating ring body is formed in the back surface of the insulating ring body. The error code instrument comprises a signal sending part, the signal sending part is fixedly installed in the installation groove and is in communication connection with the signal sending antenna through a plug wire terminal, the test tool comprises an eye pattern instrument, the eye pattern instrument comprises a signal receiving part fixed on the annular fixing frame, the signal receiving part comprises a signal receiving antenna, and the distance between the signal receiving antenna and the signal sending antenna is 1 mm.
2. The CT slip ring test tool of claim 1, wherein an error code instrument protection box is fixedly mounted on the rotating disc, and the error code instrument is mounted in the error code instrument protection box.
3. The CT slip ring test fixture of claim 2, wherein the error code instrument protection box is fixed on the rotating disk through a plurality of mounting frames, and the error code instrument protection box is close to the center of the rotating disk.
4. The CT slip ring test fixture of claim 3, wherein the error detector is connected with the signal sending part through an optical fiber jumper.
5. The CT slip ring test fixture of claim 1, wherein a brush fixing insulating frame is fixedly connected to the test rack, a plurality of brush fixing metal members are fixed to the brush fixing insulating frame, and the brushes are respectively fixed to the brush fixing metal members.
6. The CT slip ring test fixture of claim 1, wherein the signal receiving portion is fixed to the annular fixing frame by a signal receiving antenna fixing frame.
7. The CT slip ring test fixture of claim 6, wherein the signal receiving portion is connected to the eye pattern machine by fiber optic jumpers.
8. The CT slip ring test fixture of claim 1, wherein the motor drives the rotating disc to rotate through a belt, and the motor is fixed on the test rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010474283.9A CN111624424A (en) | 2020-05-29 | 2020-05-29 | CT slip ring test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010474283.9A CN111624424A (en) | 2020-05-29 | 2020-05-29 | CT slip ring test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111624424A true CN111624424A (en) | 2020-09-04 |
Family
ID=72259291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010474283.9A Pending CN111624424A (en) | 2020-05-29 | 2020-05-29 | CT slip ring test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111624424A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198378A (en) * | 2020-09-07 | 2021-01-08 | 上海联影医疗科技股份有限公司 | Slip ring fault detection device and method |
| CN112798900A (en) * | 2021-04-09 | 2021-05-14 | 嘉兴恩碧技电气有限公司 | CT slip ring life test system |
| CN114236223A (en) * | 2021-12-03 | 2022-03-25 | 北京航星机器制造有限公司 | Capacitance coupling type slip ring and CT detection device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181850A (en) * | 1976-03-03 | 1980-01-01 | Emi Limited | Data transmission in radiographic apparatus |
| US5018174A (en) * | 1989-11-20 | 1991-05-21 | General Electric Company | High speed communication apparatus for computerized axial tomography (CAT) scanners |
| JPH067710U (en) * | 1992-07-03 | 1994-02-01 | 株式会社日立メディコ | X-ray CT system |
| JPH07265292A (en) * | 1994-03-28 | 1995-10-17 | Shimadzu Corp | X-ray ct device |
| CN1139993A (en) * | 1993-12-28 | 1997-01-08 | 模拟公司 | Apparatus for transferring data to and from a moving device |
| CN104426039A (en) * | 2013-09-02 | 2015-03-18 | Ltn伺服技术有限责任公司 | Slip-ring unit and method for monitoring the condition of a slip-ring unit |
| CN104545979A (en) * | 2015-01-19 | 2015-04-29 | 赛诺威盛科技（北京）有限公司 | Electric brush detecting device and CT scanning system |
| CN105326526A (en) * | 2014-07-22 | 2016-02-17 | 三星电子株式会社 | Anatomical imaging system having fixed gantry and rotating disc |
| CN105577240A (en) * | 2014-11-04 | 2016-05-11 | 滑动环及设备制造有限公司 | Method and device for the adjustment of contactless data links |
| CN109167640A (en) * | 2018-09-26 | 2019-01-08 | 东莞铭普光磁股份有限公司 | A kind of Error Detector |
| CN212301726U (en) * | 2020-05-29 | 2021-01-05 | 嘉兴恩碧技电气有限公司 | CT slip ring test fixture |
-
2020
- 2020-05-29 CN CN202010474283.9A patent/CN111624424A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181850A (en) * | 1976-03-03 | 1980-01-01 | Emi Limited | Data transmission in radiographic apparatus |
| US5018174A (en) * | 1989-11-20 | 1991-05-21 | General Electric Company | High speed communication apparatus for computerized axial tomography (CAT) scanners |
| JPH067710U (en) * | 1992-07-03 | 1994-02-01 | 株式会社日立メディコ | X-ray CT system |
| CN1139993A (en) * | 1993-12-28 | 1997-01-08 | 模拟公司 | Apparatus for transferring data to and from a moving device |
| JPH07265292A (en) * | 1994-03-28 | 1995-10-17 | Shimadzu Corp | X-ray ct device |
| CN104426039A (en) * | 2013-09-02 | 2015-03-18 | Ltn伺服技术有限责任公司 | Slip-ring unit and method for monitoring the condition of a slip-ring unit |
| CN105326526A (en) * | 2014-07-22 | 2016-02-17 | 三星电子株式会社 | Anatomical imaging system having fixed gantry and rotating disc |
| CN105577240A (en) * | 2014-11-04 | 2016-05-11 | 滑动环及设备制造有限公司 | Method and device for the adjustment of contactless data links |
| CN104545979A (en) * | 2015-01-19 | 2015-04-29 | 赛诺威盛科技（北京）有限公司 | Electric brush detecting device and CT scanning system |
| CN109167640A (en) * | 2018-09-26 | 2019-01-08 | 东莞铭普光磁股份有限公司 | A kind of Error Detector |
| CN212301726U (en) * | 2020-05-29 | 2021-01-05 | 嘉兴恩碧技电气有限公司 | CT slip ring test fixture |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198378A (en) * | 2020-09-07 | 2021-01-08 | 上海联影医疗科技股份有限公司 | Slip ring fault detection device and method |
| CN112798900A (en) * | 2021-04-09 | 2021-05-14 | 嘉兴恩碧技电气有限公司 | CT slip ring life test system |
| CN114236223A (en) * | 2021-12-03 | 2022-03-25 | 北京航星机器制造有限公司 | Capacitance coupling type slip ring and CT detection device |
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