CN101366637B - Digitized radiation photography probe image capturing trigger gear and image capturing system - Google Patents
Digitized radiation photography probe image capturing trigger gear and image capturing system Download PDFInfo
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- CN101366637B CN101366637B CN2007100764829A CN200710076482A CN101366637B CN 101366637 B CN101366637 B CN 101366637B CN 2007100764829 A CN2007100764829 A CN 2007100764829A CN 200710076482 A CN200710076482 A CN 200710076482A CN 101366637 B CN101366637 B CN 101366637B
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- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 13
- 230000005693 optoelectronics Effects 0.000 claims description 11
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- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
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- RZILCCPWPBTYDO-UHFFFAOYSA-N fluometuron Chemical compound CN(C)C(=O)NC1=CC=CC(C(F)(F)F)=C1 RZILCCPWPBTYDO-UHFFFAOYSA-N 0.000 description 1
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- 238000002601 radiography Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention discloses an image acquisition trigger device for a digitized radiographic detector, which comprises a power supply as well as an X-ray conversion visible light module, a photoelectric conversion and signal amplification module, a comparison circuit module, an isolating circuit module, and a signal output module which are sequentially connected, wherein the power supply is respectively connected with the X-ray conversion visible light module, the photoelectric conversion and signal amplification module, the comparison circuit module, and the isolating circuit module. The image acquisition trigger device for the digitized radiographic detector does not need to be in cable connection with a high-voltage generator, thereby reducing the requirement to circuit time sequence and pulse width, and greatly reducing the fault rate of the digitized radiographic detector.
Description
Technical field
The present invention relates to medical apparatus and instruments, be specifically related to a kind of DR (Digital Radiography, digitalization radiation shooting) detector image trigger collection device and image capturing system.
Background technology
The DR detector image acquisition mode of prior art is: during images acquired, send a pre-exposure request signal by DR detector image acquisition system and give high tension generator, high tension generator starts rotation of bulb anode and filament pre-heating, be ready to back output exposure request signal and give DR detector image acquisition system, after pressing exposure button simultaneously, DR detector image acquisition system output exposure allows signal, high tension generator begins exposure after receiving signal, X ray takes place, after the time-delay of DR detector image acquisition system, the beginning images acquired, output end exposure signal is given DR detector image acquisition system after the high tension generator exposure is finished, and DR detector image acquisition system stops to gather after receiving this signal.Existing DR detector image acquisition system must link to each other with high tension generator, because high tension generator producer difference, its circuit interface difference has increased the difficulty that connects.Secondly, because high tension generator has strict demand to sequential and pulsewidth, so to different high tension generators, need to adjust other circuit, and the DR detector is moving component, because DR detector image acquisition system links to each other with high tension generator, just causes the generation of fault easily.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of digitized radiation photography probe image capturing trigger gear and image capturing system, the digitized radiation photography probe image capturing system that overcomes prior art must be connected with the high tension generator cable, be connected difficulty with high tension generator, break down easily, and to circuit sequence and the demanding defective of pulsewidth.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of digitized radiation photography probe image capturing trigger gear, the X-ray conversion visible light module that comprises power supply and link to each other successively, opto-electronic conversion and signal amplification module, the comparison circuit module, buffer circuit module and signal output module, described power supply is changed the visible light module with described X-ray respectively, described opto-electronic conversion and signal amplification module, described comparison circuit module, link to each other with described buffer circuit module, the X-ray that described X-ray conversion visible light module is used for receiving converts visible light to, described opto-electronic conversion and signal amplification module are used for converting visible light to the signal of telecommunication, described comparison circuit module is used for according to the input signal outputs level signals of setting, described buffer circuit module is used for signal is coupled, and described signal output module is connected with image collection card.
Described digitized radiation photography probe image capturing trigger gear, wherein said X-ray conversion visible light module comprises cesium iodide layer or gadolinium oxysulfide layer.
Described digitized radiation photography probe image capturing trigger gear, wherein said X-ray conversion visible light module also comprises the carbon fiber board that is positioned at described cesium iodide layer or gadolinium oxysulfide layer front end.
Described digitized radiation photography probe image capturing trigger gear, wherein said opto-electronic conversion comprises photoelectric conversion unit and first potentiometer that links to each other with described photoelectric conversion unit with the signal amplification module.
Described digitized radiation photography probe image capturing trigger gear, wherein said comparison circuit module comprise comparator and second potentiometer that is connected described comparator input terminal.
Described digitized radiation photography probe image capturing trigger gear, wherein said buffer circuit module comprise photoelectrical coupler and the current-limiting resistance that links to each other with described photoelectrical coupler.
Described digitized radiation photography probe image capturing trigger gear, wherein said signal output module comprise patch and with the described cable that links to each other that patches.
Described digitized radiation photography probe image capturing trigger gear, wherein said photoelectric conversion unit comprise photomultiplier tube and are the high voltage power supply of described photoelectric conversion unit power supply.
A kind of digitized radiation photography probe image capturing system comprises described digitized radiation photography probe image capturing trigger gear and coupled image collecting device.
Described digitized radiation photography probe image capturing system, wherein said image collecting device is made as image pick-up card.
Beneficial effect of the present invention is: digitized radiation photography probe image capturing of the present invention system does not need to be connected with the high tension generator cable, has reduced the requirement to circuit sequence and pulsewidth, and has greatly reduced the digitized radiation photography probe fault rate.
Description of drawings
Fig. 1 is a digitized radiation photography probe image capturing system module circuit diagram of the present invention;
Fig. 2 is a digitized radiation photography probe image capturing trigger gear circuit diagram of the present invention
The specific embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As shown in Figure 1, digitized radiation photography probe image capturing trigger gear of the present invention, the X-ray conversion visible light module, opto-electronic conversion and signal amplification module, comparison circuit module, buffer circuit module and the signal output module that comprise power supply and link to each other successively, described power supply link to each other with signal amplification module, described comparison circuit module and described buffer circuit module with described X-ray conversion visible light module, described opto-electronic conversion respectively.Digitized radiation photography probe image capturing of the present invention system comprises digitized radiation photography probe image capturing trigger gear and coupled image collecting device.
As shown in Figure 2, power supply provides 15 volts of unidirectional currents for the circuit other parts.The X-ray modular converter comprises that carbon fiber board and conversion efficiency are than higher cesium iodide layer or gadolinium oxysulfide layer, the ALS J9857 that cesium iodide can select for use shore pine company to produce, the Gd2O2S:Tb lanex regular that gadolinium oxysulfide can select for use Kodak to produce, the carbon fiber board model is not limit, and only requires the X line attenuation is no more than 1 AL equivalent.Opto-electronic conversion and signal amplification module are made up of photoelectric conversion unit and potentiometer RW1, and photoelectric conversion unit H5783 is formed by photomultiplier tube (being called for short PMT) and the encapsulation of high voltage power supply power supply circuits, and the resistance of potentiometer RW1 is 10K.The comparison circuit part is made up of potentiometer RW2, resistance R 1, R2, R3, R4, R5, R6, R7, R8, comparator U1, and the resistance of R1 is 10K, and RW2 is 10K, and R2, R3, R4, R5, R6 are 10K, and R7, R8 resistance are 5K, and comparator U1 is LM339.Buffer circuit is by current-limiting resistance R9, and photoelectrical coupler is formed, and its resistance of R9 is 1K, and photoelectrical coupler U2 can select TLP521 for use.Segment signal output is patched CZ1 and cable and is formed by biasing resistor R10, and the resistance of R10 is 10K, and the model that patches CZ1 is JD1-5.08-5Z.
When X-ray shines cesium iodide (or gadolinium oxysulfide) through carbon fiber board, X-ray converts the visible light that wavelength is 550nm to, after photomultiplier tube PMT detects the optical signal of 550nm, convert the signal of telecommunication to and amplify the sensitivity of the resistance adjustable size joint photomultiplier tube PMT of change potentiometer RW1.The signal of telecommunication that amplifies is through R4, R5 send the in-phase end of LM339 comparison amplifier, by R2, R3 is the out-phase end, the range of accommodation of R1 restriction RW2, and the big I of resistance of regulating RW2 changes the responsiveness that triggers the x-ray dose size, after signal is higher than the RW2 setting value, the signal of comparison amplifier LM339 generation level upset is exported triggering level by photoelectrical coupler, after image pick-up card is received this signal, gathers a width of cloth DR image.
Use photomultiplier tube as electrooptical device, do not trigger the defective of image acquisition in the time of can avoiding photosignal weak.This DR detector image trigger collection device is to high tension generator exposure no time limit and sequential requirement.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations description of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (9)
1. a digitized radiation photography probe image capturing system is characterized in that: comprise digitized radiation photography probe image capturing trigger gear and coupled image collecting device; The X-ray conversion visible light module that described digitized radiation photography probe image capturing trigger gear comprises power supply and links to each other successively, opto-electronic conversion and signal amplification module, the comparison circuit module, buffer circuit module and signal output module, described power supply is changed the visible light module with described X-ray respectively, described opto-electronic conversion and signal amplification module, described comparison circuit module links to each other with described buffer circuit module, the X-ray that described X-ray conversion visible light module is used for receiving converts visible light to, described opto-electronic conversion and signal amplification module are used for converting visible light to the signal of telecommunication, described comparison circuit module is used for according to the input signal outputs level signals of setting, and described buffer circuit module is used for signal is coupled.
2. digitized radiation photography probe image capturing according to claim 1 system is characterized in that: described X-ray conversion visible light module comprises cesium iodide layer or gadolinium oxysulfide layer.
3. digitized radiation photography probe image capturing according to claim 2 system is characterized in that: described X-ray conversion visible light module also comprises the carbon fiber board that is positioned at described cesium iodide layer or gadolinium oxysulfide layer front end.
4. according to claim 2 or 3 described digitized radiation photography probe image capturing systems, it is characterized in that: described opto-electronic conversion comprises photoelectric conversion unit and first potentiometer that links to each other with described photoelectric conversion unit with the signal amplification module.
5. digitized radiation photography probe image capturing according to claim 4 system, it is characterized in that: described comparison circuit module comprises comparator and second potentiometer that is connected described comparator input terminal.
6. digitized radiation photography probe image capturing according to claim 5 system is characterized in that: described buffer circuit module comprises photoelectrical coupler and the current-limiting resistance that links to each other with described photoelectrical coupler.
7. digitized radiation photography probe image capturing according to claim 6 system is characterized in that: described signal output module comprise patch and with the described cable that links to each other that patches.
8. digitized radiation photography probe image capturing according to claim 4 system is characterized in that: described photoelectric conversion unit comprises photomultiplier tube and is the high voltage power supply of described photoelectric conversion unit power supply.
9. digitized radiation photography probe image capturing according to claim 1 system, it is characterized in that: described image collecting device is made as image pick-up card.
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| CN2007100764829A CN101366637B (en) | 2007-08-17 | 2007-08-17 | Digitized radiation photography probe image capturing trigger gear and image capturing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021051A (en) * | 2012-11-19 | 2013-04-03 | 深圳光启创新技术有限公司 | Photovoltaic triggering circuit, optical signal receive control equipment and decoding method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102158642B (en) * | 2010-11-30 | 2013-05-08 | 深圳市蓝韵实业有限公司 | Universal sequential control device for radiographing system |
| WO2014026601A1 (en) * | 2012-08-13 | 2014-02-20 | 深圳光启创新技术有限公司 | Optical signal processing apparatus and decoding method for optical signal reception control device |
| CN103054594B (en) * | 2012-12-12 | 2015-08-19 | 上海奕瑞光电子科技有限公司 | A kind of Automatic trigger exposure circuit of flat panel detector |
| CN106308828A (en) * | 2015-07-01 | 2017-01-11 | 上海奕瑞光电子科技有限公司 | Digital image detection apparatus and flat panel detector wireless external triggering method |
| CN108261610A (en) * | 2018-01-19 | 2018-07-10 | 合肥中科离子医学技术装备有限公司 | A kind of CBCT high pressure generators and the method for flat panel detector high-speed synchronous triggering |
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| US6339633B1 (en) * | 1998-11-27 | 2002-01-15 | Wuestec Medical, Inc. | Automatic exposure initiation in a digital CCD camera x-ray imager |
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| CN201115670Y (en) * | 2007-08-17 | 2008-09-17 | 深圳市蓝韵实业有限公司 | Digitalization radiation shoot detector image gathering trigger device and image gathering system |
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| US5887049A (en) * | 1996-11-12 | 1999-03-23 | California Institute Of Technology | Self-triggered X-ray sensor |
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| CN103021051B (en) * | 2012-11-19 | 2014-04-16 | 深圳光启创新技术有限公司 | Photovoltaic triggering circuit, optical signal receive control equipment and decoding method thereof |
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| CN101366637A (en) | 2009-02-18 |
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Denomination of invention: Digitized radiation photography probe image capturing trigger gear and image capturing system Effective date of registration: 20141024 Granted publication date: 20101208 Pledgee: Shenzhen Chaoshang microfinance Ltd. Pledgor: Landwind Co., Ltd. Registration number: 2014440000015 |
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Date of cancellation: 20150316 Granted publication date: 20101208 Pledgee: Shenzhen Chaoshang microfinance Ltd. Pledgor: Landwind Co., Ltd. Registration number: 2014440000015 |
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Effective date of registration: 20151229 Address after: 518000, Guangdong, Shiyan City, Shenzhen province Baoan District Stone Street neighborhood committee, brick village, Liyuan Industrial Zone, hung long hi tech Industrial Park (blue rhyme Industrial Park), 2, 1 floor Patentee after: Shenzhen blue ribbon medical imaging Co., Ltd. Address before: Futian District King Road Shenzhen city Guangdong province 518034 No. 81 country garden building E 601 Patentee before: Landwind Co., Ltd. |
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Address after: No.103, baguang District Service Center, No.2 BaiShaWan Road, baguang community, Kuiyong street, Dapeng New District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Lanying Medical Technology Co.,Ltd. Address before: 518000 Shenzhen, Baoan District, Guangdong Shiyan street, Lang Xin neighborhood committee, brick factory village, Liyuan Industrial Zone, hung lung hi tech Industrial Park (blue Yun Industrial Park), 1 1 buildings. Patentee before: SHENZHEN LANYUN MEDICAL IMAGE CO.,LTD. |
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