CN202394035U - X-ray machine imaging device based on automatic control of aperture - Google Patents
X-ray machine imaging device based on automatic control of aperture Download PDFInfo
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- CN202394035U CN202394035U CN2011203712527U CN201120371252U CN202394035U CN 202394035 U CN202394035 U CN 202394035U CN 2011203712527 U CN2011203712527 U CN 2011203712527U CN 201120371252 U CN201120371252 U CN 201120371252U CN 202394035 U CN202394035 U CN 202394035U
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Abstract
The utility model relates to an X-ray machine imaging device based on the automatic control of an aperture. The X-ray machine imaging device is characterized by comprising an aperture driving motor, a high-resolution hand-operated lens, an aperture positioning rule, an aperture driving ring and an aperture moving control unit; the aperture moving control unit comprises a main controller, a memory, a logic control circuit, a circumference counter, a first spacing point, a second spacing point and a motor driving circuit; the main controller is connected with the memory; the logic control circuit is connected with the main controller, the circumference counter, the first spacing point, the second spacing point and the motor driving circuit; the motor driving circuit is connected with the aperture driving motor; the aperture driving motor is connected with the high-resolution hand-operated lens, the aperture driving ring and the aperture moving control unit; and the aperture positioning rule is arranged on the high-resolution hand-operated lens and connected with the circumference counter.
Description
Technical field
The utility model relates to imaging device, particularly a kind of X-ray production apparatus imaging device of controlling automatically based on aperture.
Background technology
The primary structure of medical X ray machine imaging system aperture employing at present:
The primary structure that adopts is main with what Siemens and Toshiba adopted, and as shown in Figure 1, Fig. 1 is the X-ray production apparatus imaging device structural representation that camera lens is made up of a set of contact lenses.Dotted line indication device back panel wiring among the figure.Its principal feature is:
1, the aperture system separates with lens system
So-called aperture system separates with lens system and is meant that camera lens is made up of a set of contact lenses group, and aperture is between lens set, and lens set needs adjustment when mounted, image quality with install concern bigger.
2, aperture control system and main frame and lens control system are independent
The aperture control system is generally slowed down through the motor process, and the physical construction that drives on the light path is controlled light-inletting quantity (getting into the luminous energy size of video camera).And the determining positions of physical construction the size of light-inletting quantity, so the position of physical construction is very important, generally come sensing through a feedback potentiometer, again according to the needs of this inspection, the aperture of control aperture, thereby control light-inletting quantity guarantee image quality.At this moment, video camera, image amplifier and main frame condition and aperture are irrelevant, keep independent mutually.
Adopt said method control aperture that following advantage is arranged:
1) simple in structure, the aperture system is independently, increases at any time or cancellation, does not change original light path.
2) be easy to existing equipment is transformed, do not change the control and the on-line mode of former machine.
Its major defect is:
1) separate because of lens set, the workload of debugging is bigger, and the technician is had relatively high expectations.
2) the long-term use is prone to depart from, and causes the image quality deterioration.
3) cost is higher.
To above-mentioned deficiency, present X-ray production apparatus imaging device generally adopts commercial integral type camera lens.As shown in Figure 2, Fig. 2 is the X-ray production apparatus imaging device structural representation of commercial integral type for camera lens.Dotted line indication device back panel wiring among the figure.Its good imaging quality is installed simply, and debugging is concentrated, and is not prone to and departs from.
Interim, the collimation camera lens is changed to the near field camera lens, and former lens set changes commercialization one camera lens into, and aperture is integrated in wherein, and control accuracy is high, is difficult for departing from.
Adopt such scheme can be, but aperture be controlled to and be a difficult problem, because at present in this field so that image quality is guaranteed; Also do not see a convenience, precision is high, the control mode that cost is low; Many producers on the basis of the existing conditions no matter how simple and crude; Adopt magnet, methods such as driving lever are gathered together and are solved, and can not satisfy request for utilization fully.
The utility model content
The purpose of the utility model is that for addressing the above problem, the utility model proposes a kind of X-ray production apparatus imaging device of controlling automatically based on aperture.This device has the precision height, cost is low and the convenient effect of using.
For realizing above-mentioned utility model purpose; The utility model proposes a kind of X-ray production apparatus imaging device of controlling automatically based on aperture; It is characterized in that this device comprises: aperture drive motor, the manual camera lens of high resolving power, aperture positioning rule, aperture driving ring and aperture mobile control unit; Said aperture mobile control unit comprises master controller, storer, logic control circuit, circumference counter, the first spacing point, second spacing point and the motor-drive circuit;
Said master controller links to each other with said storer; Said logic control circuit all links to each other with said motor-drive circuit with said master controller, said circumference counter, the said first spacing point, the said second spacing point, and said motor-drive circuit links to each other with said aperture drive motor; Said aperture drive motor all links to each other with said aperture mobile control unit with the aperture of the manual camera lens of said high resolving power, and said aperture positioning rule is arranged on the manual camera lens of said high resolving power, and said aperture driving ring links to each other with said aperture drive motor.
More preferably, this device also comprises as for the flexible connector between said aperture driving ring and the said aperture drive motor.
More preferably, said aperture mobile control unit also comprises the serial ports transceiver that is used for the aperture position information transmission that remote equipment is preset to said master controller.
The advantage of the utility model is; Device in the utility model can convert the control signal that main frame or other opertaing device transmit into driving force; Drive the aperture motion of commercialization high-resolution lens; Thereby reach the purpose of regulating aperture aperture size, to adapt in the x-ray imaging process control to the video camera light-inletting quantity.Therefore, this device has the aperture of Mechanical Driven commercialization camera lens, and in the driving process held stationary, linear good; The light path quadrature of driving force and camera lens promptly drives the center of circle and light path and axle.Activation point is accurate, does not have cumulative errors.Actuating speed is fast, less than X-ray production apparatus high pressure generator and rotary anode start-up time.Durable in use, easy maintenance, with low cost.
Description of drawings
Fig. 1 is the X-ray production apparatus imaging device structural representation that camera lens is made up of a set of contact lenses;
Fig. 2 is the X-ray production apparatus imaging device structural representation of commercial integral type for camera lens;
A kind of X-ray production apparatus imaging device side view of controlling automatically based on aperture that Fig. 3 proposes for the utility model;
Fig. 4 is a kind of based on aperture mobile control unit block diagram in the X-ray production apparatus imaging device of the automatic control of aperture for the utility model proposition.
The accompanying drawing sign:
1, aperture positioning rule, 2, driving circuit, 3, the light damping plate CD-ROM drive motor, the spacing point of 4, first aperture; 5, the spacing point of second aperture, 6, the aperture drive motor, 7, rolling bearing, 8, flexible coupler; 9, aperture driving ring, 10, the manual camera lens of high resolving power, 11, the circumference counter.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the technical scheme of the utility model is carried out further detailed explanation.
A kind of X-ray production apparatus imaging device side view of controlling automatically based on aperture as shown in Figure 3, that Fig. 3 proposes for the utility model.Can know from Fig. 3; This device comprises the spacing point of the spacing point of aperture positioning rule 1, driving circuit 2, light damping plate CD-ROM drive motor 3, first aperture 4, second aperture 5, aperture drive motor 6, rolling bearing 7, flexible coupler 8, aperture driving ring 9, the manual camera lens 10 of high resolving power and circumference counter 11.
It is the key of assurance system trouble-free operation that the aperture drive system keeps coaxial in assembling with the manual camera lens 10 of high resolving power; The rigging error of prevailing system can not satisfy the camera lens long-term work and use; Therefore, between aperture drive motor 6 and aperture driving ring 9 through 8 flexible connections of flexible coupler, and the error of the system that makes during when working, making rotation up automatically; Guarantee the transmission of power between drive motor and the aperture, avoided the assembling eccentric error to damage aperture and drive motor effectively.
Aperture because long-term work is used and worn and torn, can make positioning error strengthen during conversion, departs from predeterminated position.The design of this device is when aperture moves to reposition at every turn; Get back to spacing point 4 of first aperture or the spacing point 5 of second aperture earlier, move to predeterminated position again, the angle of rotation is detected by aperture positioning rule 1 and is calculated by circuit control; Assurance navigates to the precision of preset; Long-term use can cumulative errors, makes predeterminated position remain accurately, and is error free.
This device can long-rangely be configured predeterminated position through driving circuit 2, is fit to the use of remote control equipment, and Remote configuration realizes through software, has simplified installation, has alleviated technician's working strength.In actual use, the predeterminated position of aperture can Long-distance Control drive arrival in 1.5 seconds.
The diaphragm sheet that aperture is made up of one group of thin metal or plastic sheet is used on light path, stopping that light gets into video camera, thereby moves the apertures that form different sizes by these diaphragm sheets that the energy of the light of feasible process aperture is controlled.The physical construction that is used for mobile diaphragm sheet is the aperture control gear.The aperture control gear generally is divided into manual or electronic, and it is the scalable aperture size that manual iris is stirred outer shroud with hand, and electronic aperture is to be regulated by direct motor drive diaphragm sheet.Generally, electronic aperture is regulated and the light-inletting quantity interlock, what of light-inletting quantity to regulate the aperture aperture by circuit controling motor according to.This situation is applicable to commonness photograph, and continuous images is taken and controlled.But the X ray photography is the moment imaging, can not regulate automatically according to real-time light-inletting quantity, must pre-set the size of aperture.Because the camera lens of shooting usefulness can not be set size (but dynamically control) in advance, so existing commercial camera lens can not be used for the X ray photography on the market.
We adopt the manual camera lens of existing commercial high resolving power on the market, and the adjusting to lens aperture is manual so.Because the X ray video camera is installed in the imaging system of sealing, so manual adjustments is difficult to realize and use.We have designed above-mentioned automatic control system, and the major control process is following:
Outside the manual camera lens of commercial high resolving power, make a cover mechanical hook-up, the manual camera lens of commercial high resolving power has been fixed, and designed the outer shroud that electric device is stirred manual iris.Because the rotation center of mechanical hook-up can not be coaxial fully with the center of circle of the manual camera lens of commercial high resolving power; Carry out to produce extra strength when aperture is regulated so drive the manual camera lens outer shroud of commercial high resolving power, will not damage camera lens if do not handle these extra strength at mechanical hook-up.So; We have designed flexible drive system between mechanical hook-up and the manual camera lens outer shroud of commercial high resolving power; Be loose connecting between mechanical hook-up and the camera lens outer shroud just; The center of circle of camera lens outer shroud and the center of circle of mechanical hook-up can radially slide, and have so just avoided producing extra strength effectively, avoid damaging camera lens and drive unit.
In use,, can not directly closely regulate aperture size because be integrated in the imaging system of X-ray production apparatus, thus must long-range the adjusting, and the problem of remote adjustment is the particular location (can't see) that is difficult to confirm aperture, the i.e. size of aperture aperture.We have added measuring system by the device of design in the physical construction of regulating aperture, and record is carried out in the position that the aperture aperture is minimum and maximum.When needing to regulate aperture size, driving circuit at first reaches maximum or minimum with aperture at every turn, and this position is confirmed aperture; Then, driving circuit drives the manual camera lens outer shroud of commercial high resolving power and rotates, simultaneously; The angle that aperture positioning rule 1 record rotates, when the angle that measures when aperture positioning rule 1 was identical with the angle of setting, motor stopped operating; Aperture arrives the precalculated position, can make public.Because all aperture is reached maximum or minimum at every turn, so the error of machinery can not accumulated, long-time use can guarantee precision.
The design's aperture control system can long-range size through the computer installation aperture, can preset 8 frequency modulated light circles, and can receive the aperture actuating signal, in case receive this signal, aperture starts, and moves to predeterminated position.Detailed process is following:
At first; The control circuit that connects computing machine and aperture automaton through serial ports; 8 position datas to presetting through software kit download in the aperture automaton, and the aperture automaton can be kept at these data in the non-volatile storer.
Then, cut off computer and the linking of aperture automaton, the digital control plate of X ray main frame is connected on the aperture automaton through serial ports.The signal wire of X ray main frame is connected to the digital control plate of X ray main frame, and the digital control plate of X ray main frame can decode Host Status and signal remove to control the aperture automaton through serial ports then.
As shown in Figure 4, Fig. 4 is a kind of based on aperture mobile control unit block diagram in the X-ray production apparatus imaging device of the automatic control of aperture for the utility model proposition.The aperture mobile control unit is a bit driver circuit 2, comprising: the spacing point of the spacing point of master controller, storer, logic control circuit, circumference counter 11, first 4, second 5, flexible connector 8 and motor-drive circuit.Master controller links to each other with storer, and logic control circuit all links to each other with motor-drive circuit with master controller, circumference counter 11, the first spacing point, the second spacing point, and motor-drive circuit links to each other with the aperture drive motor.The serial ports transceiver is used for the aperture position information transmission that remote equipment is preset to master controller.
The serial ports transceiver has difunctional, and the one, can carry out the configuration of preset position to iris control apparatus through it, the 2nd, can promptly move to predeterminated position through the switching that it can control aperture.
Master controller decoding serial ports sign indicating number is also controlled the motion of motor, preserves the predeterminated position data in nonvolatile memory.
Logic control circuit is controlled by master controller, when master controller order arrival, and start-up circuit, logic control circuit is opened motor according to the order of master controller; Move aperture, when aperture arrived the first spacing point 4 or the second spacing point 5, logic control circuit was received the signal that puts in place, stops motor movement; Open counter circuit, drive motor reverse direction operation again, simultaneously, the circumference counter that is installed together with aperture begins counting; Pulse signal is input to logic control circuit, and logic control circuit begins counting, when counter arrives default value; Stop motor, keep aperture position constant, just can make public this moment.
Through the combination of foregoing circuit and mechanical movement means, accomplish foregoing aperture control procedure.
It should be noted last that above embodiment is only unrestricted in order to the technical scheme of explanation the utility model.Although the utility model is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; The technical scheme of the utility model is made amendment or is equal to replacement; The spirit and the scope that do not break away from the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (3)
1. an X-ray production apparatus imaging device of controlling automatically based on aperture is characterized in that this device comprises: aperture drive motor, the manual camera lens of high resolving power, aperture positioning rule, aperture driving ring and aperture mobile control unit; Said aperture mobile control unit comprises master controller, storer, logic control circuit, circumference counter, the first spacing point, second spacing point and the motor-drive circuit;
Said master controller links to each other with said storer; Said logic control circuit all links to each other with said motor-drive circuit with said master controller, said circumference counter, the said first spacing point, the said second spacing point, and said motor-drive circuit links to each other with said aperture drive motor; Said aperture drive motor all links to each other with the aperture of the manual camera lens of said high resolving power, said aperture driving ring and said aperture mobile control unit, and said aperture positioning rule is arranged on the manual camera lens of said high resolving power, and links to each other with said circumference counter.
2. a kind of X-ray production apparatus imaging device of controlling automatically based on aperture according to claim 1 is characterized in that this device also comprises the flexible connector that is used between said aperture driving ring and the said aperture drive motor.
3. a kind of X-ray production apparatus imaging device of controlling automatically based on aperture according to claim 1 and 2; It is characterized in that said aperture mobile control unit also comprises the serial ports transceiver that is used for the aperture position information transmission that remote equipment is preset to said master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203712527U CN202394035U (en) | 2011-09-30 | 2011-09-30 | X-ray machine imaging device based on automatic control of aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203712527U CN202394035U (en) | 2011-09-30 | 2011-09-30 | X-ray machine imaging device based on automatic control of aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394035U true CN202394035U (en) | 2012-08-22 |
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ID=46668948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203712527U Expired - Fee Related CN202394035U (en) | 2011-09-30 | 2011-09-30 | X-ray machine imaging device based on automatic control of aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394035U (en) |
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2011
- 2011-09-30 CN CN2011203712527U patent/CN202394035U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Zhaolong Inventor after: Fan Mingshan Inventor after: Sun Weizhen Inventor before: Jin Zhaolong Inventor before: Fan Ming Inventor before: Sun Weizhen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JIN ZHAOLONG FAN MING SUN WEIZHEN TO: JIN ZHAOLONG FAN MINGSHAN SUN WEIZHEN |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |