CN100353159C - Radiographic detector - Google Patents
Radiographic detector Download PDFInfo
- Publication number
- CN100353159C CN100353159C CNB2004100012039A CN200410001203A CN100353159C CN 100353159 C CN100353159 C CN 100353159C CN B2004100012039 A CNB2004100012039 A CN B2004100012039A CN 200410001203 A CN200410001203 A CN 200410001203A CN 100353159 C CN100353159 C CN 100353159C
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- Prior art keywords
- radiation
- common region
- mentioned
- remover
- foreign matter
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- Expired - Fee Related
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- 230000005855 radiation Effects 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000007689 inspection Methods 0.000 claims description 53
- 238000000034 method Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 abstract 1
- 230000032258 transport Effects 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 16
- 244000061456 Solanum tuberosum Species 0.000 description 5
- 235000002595 Solanum tuberosum Nutrition 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 230000002285 radioactive effect Effects 0.000 description 4
- 240000001417 Vigna umbellata Species 0.000 description 3
- 235000011453 Vigna umbellata Nutrition 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000012015 potatoes Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
Images
Classifications
-
- 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
- G01N23/043—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 fluoroscopic examination, with visual observation or video transmission of fluoroscopic images
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
- G01N21/5907—Densitometers
- G01N2021/5957—Densitometers using an image detector type detector, e.g. CCD
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/652—Specific applications or type of materials impurities, foreign matter, trace amounts
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Sorting Of Articles (AREA)
Abstract
A radiation detecting apparatus is provided to exactly exclude impurities by using a bad article excluding unit. A radiation detecting apparatus includes a radiation generating unit, a radiation detecting unit, a transportation unit, an image processing unit(5), and a bad article excluding unit(71). The radiation detecting unit is formed in one dimension or two dimensions. The radiation detecting unit includes a plurality of elements. The radiation detecting unit is arranged in opposition to the radiation generating unit. The transportation unit transports an article to be measured between the radiation generating unit and the radiation detecting unit. The image processing unit performs certification determination through image processing by means of an output of the radiation detecting unit.
Description
Technical field
The present invention relates to a kind of radiation inspecting apparatus that is used to the nondestructive inspection of medicine or food etc., particularly relate to a kind of radiation inspecting apparatus of checking soybean, red bean or potato, also having the inspection of whether sneaking into foreign matter etc. in the non-package such as wheat flour that is applicable to.
Background technology
In recent years, in the manufacturing field of food etc., pay close attention to preventing sneaking into all the more of foreign matter.As the device that such inspection has or not foreign matter to sneak into, people know the metal detection machine usually, and but, natural is and be not suitable for the inspection of stone or glass etc.In addition, also reliable visible light uses the testing fixture of ccd video camera etc., but, embeds that internal growth gets up and attached to the foreign matter of checked property inboard etc., such device is powerless for stones such as potatoes.
For this reason, the radiation inspecting apparatus that uses X line isoradial to obtain the perspective picture of checked property is used to this inspection.In the radiation inspecting apparatus that foreign matter in checking food etc. is sneaked into etc., usually, carry checked property with travelling belt, clip this travelling belt and descend subtend configuration X line isoradial source and radiation detector thereon, when checked property passes through therebetween, the radioactive ray that obtain checked property see through information, have or not foreign matter to sneak into and have or not substandard products etc. (reference example such as patent documentation 1) according to having adopted its radioactive ray to see through the Flame Image Process of information, having judged.
In addition, in this testing fixture, be provided with remover usually, the checked property that is judged to be substandard product according to above-mentioned result of determination is got rid of from travelling belt.As this remover, practicality has various parts, for example known a kind of such device, at throughput direction downstream side configuration air nozzle than the more close travelling belt of equipping position of radiation detector, echo mutually with the judgement of substandard product, go out air from that nozzle ejection, thereby make substandard product on the travelling belt fall etc. (for example with reference to patent documentation 2).
But, in the inspection of for example non-packages such as soybean, red bean, potato and wheat flour, be in bulk middle by radiation source and radiation detector on travelling belt, shown in the vertical view of Fig. 4 pattern, the visual field width of radiation detector D is that inspection area width W D sets in the mode of the integral body of covering travelling belt C width W C.And when the local detection of its inspection area width W ID went out foreign matter E, the checked property S on the whole width W C of travelling belt C became eliminating to picture, and for example a large amount of checked property S of WC as shown in the figure * L scope has been excluded.
The eliminating amount of checked property when detecting in order to reduce this foreign matter, the countermeasure of thinking is: the inspection area was carried out two fens in the direction vertical with the throughput direction of travelling belt, be set as two row inspection areas, corresponding its each regional remover is set simultaneously, have or not foreign matter by each inspection area judgement, corresponding with its each judged result, carry out work by the remover of correspondence.
; in this countermeasure; near travelling belt width direction central authorities; when detecting foreign matter by a side inspection area; the remover of respective side carries out work; and this moment; exist the size that the conditioned disjunction checked property the is set states such as (difference of red bean and potato) of two removers and when checked property being transported to the equipping position of remover from the inspection position, may move to the adjacent danger that lists; it is fatal to this testing fixture that this debug takes place, and can not reach practicability, universalness.
Patent documentation 1: the spy open the 2002-310944 communique (the 2-4 page or leaf, Fig. 1)
Patent documentation 2: the spy open flat 9-240830 communique (the 3rd page, Fig. 2)
Summary of the invention
The present invention produces in view of this actual conditions, it is a kind of when detecting foreign matter and sneak into etc. that its purpose is to provide, needn't worry to take place debug as above-mentioned, really foreign matter etc. can be got rid of, and the radiation inspecting apparatus of its eliminating amount can be reduced than existing this testing fixture.
To achieve these goals, radioactive ray foreign body detecting device of the present invention, has radiation generator, 1 dimension that relative configuration with its radiation generator is made up of multiple elements or 2 dimension radiation detectors, between this radiation generator and radiation detector, carry the conveying device of checked property, carry out the whether qualified image processing apparatus of judging and get rid of the remover of the substandard product on the conveying device according to its result of determination at the downstream side of above-mentioned radiation detector according to the Flame Image Process of the output of having adopted above-mentioned radiation detector, it is characterized in that: above-mentioned image processing apparatus, carry out whether qualified judgement for each zone in the common region that overlaps each other between a plurality of inspection areas with the common region that overlaps each other on the direction vertical and adjacent setting and this a plurality of inspection areas with the throughput direction of above-mentioned conveying device, have a plurality of removers that carry out work corresponding to above-mentioned each inspection area simultaneously, and for not the time, the both sides of the remover corresponding with the inspection area, both sides that clips its common region carry out eliminating work (the 1st invention) in the result of determination of above-mentioned common region.
At this, among the present invention, suitable employing has the formation of common region width change device (the 2nd invention), its can change common region in the above-mentioned image processing apparatus with the throughput direction vertical direction on width.
The present invention is cut apart the inspection area of image processing apparatus basically on the direction vertical with the throughput direction of conveying device, corresponding to its each inspection area a plurality of removers are set, and the eliminating amount when reducing and to be judged to be not (foreign matter sneak into etc.), in adjacent inspection area overlapping common region is set, when its common region is judged to be not, remover corresponding to the inspection area of the both sides of its common region carries out eliminating work simultaneously, thereby debug can not take place.
That is, on direction, cut apart the inspection area and become a plurality of, and between each inspection area, common region is set, on the other hand, only be provided with the same number of each testing fixture and make it carry out work corresponding to result of determination separately about remover perpendicular to throughput direction.And, in the result of determination of common region during, carry out eliminating work jointly corresponding to two removers of the inspection area of the both sides of its common region for not (foreign matter sneak into etc.).Thereby, for not the time, can reduce the eliminating amount of checked property in the result of determination of an inspection area, in addition, even in each inspection area be the result of determination of common region of boundary member when denying, also needn't worry to take place debug.
Description of drawings
Fig. 1 is the pie graph of the embodiment of the invention, is the figure with expression machinery mode chart that constitutes and the block scheme integrating representation of representing electric formation.
Fig. 2 is the key diagram of the relation of the set condition of inspection area of embodiments of the invention and remover, is the figure that represents with the vertical view of the pattern of transfer system 1.
Fig. 3 is the chronogram of work of each one of expression embodiments of the invention.
Fig. 4 relies on the radiation inspecting apparatus of conventional example to carry out non-package when having or not the inspection that foreign matter sneaks into, and should get rid of foreign matter and the key diagram of the eliminating amount of the checked property that is excluded.
Among the figure: the 1-transfer system; The 2-X line source; 3-1 dimension X thread detector; The 5-image processing apparatus; 71, the 72-remover; The S-checked property.
Embodiment
Below, with reference to accompanying drawing embodiments of the invention are described.
Fig. 1 is the pie graph of embodiments of the invention, is the figure of the machinery mode chart that constitutes and the block scheme integrating representation of representing electric formation of expression major part.
Checked property S is loaded on the annular belt 11 of transfer system 1, is transferred with certain speed.Above transfer system 1, X spool 2 with its X linear light axle towards the configuration of the posture of vertical lower, simultaneously, relative with X spool 2 to, in its vertical lower, with the state configuration 1 dimension X thread detector 3 that belt 11 is clipped in the middle.
Transfer system 1 comprises: belt 11, volume are hung driven roller 12 and a plurality of driven voller 13 of this belt 11, by being arranged on the switching manipulation on the guidance panel 4, according to the drive signal of supplying with by the driving loop, the engine (not shown) that is rotated driving drives driven roller 12 rotations, rotation by this driven roller 12, belt 11 is moved by each roller guiding, carries checked property S with certain speed along the direction of arrow among the figure.
The X line takes place by the high voltage from high voltage generation loop 22 that applies by 21 controls of X lane controller in X spool 2 between its anodal 2a and negative pole 2b.Between X spool 2 and transfer system 1, the slit member 23 of plumbous system is set, it is formed with along perpendicular to based on the slit 23a on the direction of the throughput direction of this transfer system 1, X line from 2 outputs of X spool, by this slit, and formation is radiated on the checked property S on the belt 11 along the X-ray beam of the fan-shaped of the Width expansion of transfer system 1.
1 dimension X thread detector 3, for example constitute by CCD of scintillater and a plurality of elements that are arranged in wire etc., see through checked property S and be incident upon this 1 X line of tieing up on the X thread detector 3, after being transformed to light by scintillater, each element every certain small time by CCD detects, the corresponding detection signal of superframe signal of output and X line on each element.
The output of 1 dimension X thread detector 3 is that the X line of checked property S sees through data, collects and offer Flame Image Process by data processing equipment 5, is represented by monitor 51 through picture as the X line of checked property S.And in this data processing equipment 5, after carrying out various filtrations etc. and handling, the most deep or light information of each pixel is carried out double quantification, judges having or not of foreign matter, and it is judged in as described later two inspection areas and each common region therebetween and carries out individually.
Tie up the throughput direction downstream side of the equipping position of X thread detector 3 with respect to X line source 2 and 1, the 1st and the 2nd remover 71 and 72 are set at transfer system 1.Each remover 71 and 72 is respectively arm-type remover, is configured in the both sides of the Width of transfer system 1, and each exclusionary zone is overlapped.The signal institute drive controlling that these the 1st and the 2nd removers 71 and 72 are provided by data processing equipment 5.In addition, when detecting foreign matter in any one zone, hummer 54 will be rung.In addition, this result of determination is by printer 52 outputs, and its image is by image printer 53 outputs simultaneously.
Next, just describe based on the decision method of data processing equipment 5 and the work of each remover 71,72.Fig. 2 is the key diagram of the relation of the set condition of inspection area of embodiments of the invention and remover, is the figure that represents with the vertical view of the pattern of transfer system 1.In addition, Fig. 3 is the chronogram of each work of expression.
That is, as shown in Figure 2, clip the common region Ac of the nearly central portion that is arranged on the direction vertical, set the 1st inspection area A1 and the 2nd inspection area A2 in its both sides with the throughput direction of transfer system 1.And each regional A1, A2 and Ac can judge and have or not foreign matter to sneak at this.This each the regional border in other words width of common region Ac can be set arbitrarily by guidance panel.
And, as shown in Figure 3, when checking out foreign matter to sneak into, provide the drive signal that should get rid of foreign matter to the 1st remover 71 by the 1st inspection area A1.With from proving time of foreign matter point only postpone the time point of time T 1 and export this drive signal, this time T 1 is determined by the transporting velocity from the distance of the equipping position of 1 dimension X thread detector, 3 to the 1st removers 71 and the checked property S by transfer system 1.
In addition, when checking out foreign matter to sneak into, provide the drive signal that to get rid of foreign matter to the 2nd remover 72 by the 2nd inspection area A2.With from proving time of foreign matter point only postpone the time point of time T 2 and export this drive signal, this time T 2 is determined by the transporting velocity from the distance of the equipping position of 1 dimension X thread detector, 3 to the 2nd removers 72 and the checked property S by transfer system 1.
And, when checking out foreign matter to sneak into,,, provide the drive signal that should get rid of foreign matter to postpone the time point of difference time corresponding T1 and T2 from some proving time of foreign matter for the 1st and the 2nd remover 71 and 72 both sides by common region Ac.
According to above work, detect foreign matter when sneaking into by the 1st or the 2nd inspection area A1 or A2, compared with the situation of the checked property S on the whole width of the belt 11 of getting rid of transfer system 1 in the conventional example, its eliminating amount reduces 1/2nd approximately.And, common region Ac between the 1st and the 2nd inspection area A1 and A2 detects foreign matter when sneaking into, the the 1st and the 2nd remover 71 and 72 both sides carry out eliminating work, therefore, even foreign matter moves to the 1st or the 2nd inspection area A1 or A2 debug can not take place yet from common region Ac in by the course of conveying of transfer system 1.In addition, even checked property S arrives greatly more than a certain degree, the foreign matter of the inside of the center of checked property S and its checked property S is sneaked into the position across common region Ac the 1st or the 2nd inspection area A1 or A2, also debug can not take place.
At this, form as remover, except as above-mentioned example arm-type, can also adopt along the direction vertical the belt of travelling belt is cut apart with throughput direction, its each divided belt selectively tilts downwards, thereby makes the checked property that carries thereon fall other forms such as this so-called lift belt-type.
In addition, in above embodiment, show and clip the example that common region is set two inspection areas, but, also can set the inspection area more than three, between each inspection area each common region is set simultaneously, at this moment, only remover is set and makes it corresponding respectively by the number of each inspection area, when checking out foreign matter to sneak into by common region, can be by implementing eliminating work with the corresponding remover in the inspection area of its both sides.The remover of this moment can also adopt for example belt-type device of lift.
Have, the X thread detector is not defined as 1 dimension again, and natural can adopt 2 dimension detecting devices.
As more than, according to the present invention, the radioactive ray information that sees through based on the checked property of radiation detector is being carried out Flame Image Process, when execution has or not foreign matter whether qualified judgement such as to sneak into, the a plurality of inspection areas that have common region each other are set, simultaneously, corresponding to each inspection area remover is set, make these removers carry out work corresponding to the whether qualified judgement of each this each inspection area, and when the whether qualified judgement that is judged to be not of common region, by carrying out eliminating work with corresponding respectively two the remover both sides in two inspection areas that clip its common region, therefore, the foreign matter of non-packages such as industrial product such as food such as cereal and beans or potato and coating powder is being sneaked in inspection etc., the eliminating amount of the checked property in the time of can reducing the check foreign matter than conventional example, and, even foreign matter laterally slides from the collection position of radioscopy information to the course of conveying of the equipping position of remover, the debug of foreign matter also can not take place.
In addition, can obtain to change arbitrarily the width of common region, can do one's utmost to reduce useless unnecessary eliminating, and can get rid of the radiation inspecting apparatus of foreign matter really corresponding to checking to as the size of thing with the action when carrying and setting.
Claims (2)
1. radiation inspecting apparatus, have radiation generator, and the configuration of its radiation generator subtend and 1 dimension that is made up of multiple elements or 2 dimension radiation detectors, carry out the whether qualified image processing apparatus of judging and get rid of the remover of the substandard product on the conveying device at the downstream side of above-mentioned radiation detector, it is characterized in that according to its result of determination in the conveying device of carrying checked property between this radiation generator and the radiation detector, the Flame Image Process of output by utilizing above-mentioned radiation detector:
Above-mentioned image processing apparatus, for each zone in the common region that overlaps each other between a plurality of inspection areas with the common region that on the direction vertical, overlaps each other and adjacent setting and this a plurality of inspection areas with the throughput direction of above-mentioned conveying device, all carry out whether qualified judgement, and have a plurality of removers that work is carried out in corresponding above-mentioned each inspection area, and for not the time, corresponding remover both sides carry out eliminating work with the inspection area, both sides that clips its common region in the result of determination of above-mentioned common region.
2. the described radiation inspecting apparatus of claim 1 is characterized in that: have a common region that can change above-mentioned image processing apparatus with the throughput direction vertical direction on the common region width change device of width.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003067103A JP3804619B2 (en) | 2003-03-12 | 2003-03-12 | Radiation inspection equipment |
| JP2003067103 | 2003-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1530644A CN1530644A (en) | 2004-09-22 |
| CN100353159C true CN100353159C (en) | 2007-12-05 |
Family
ID=33284814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100012039A Expired - Fee Related CN100353159C (en) | 2003-03-12 | 2004-01-02 | Radiographic detector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3804619B2 (en) |
| KR (1) | KR100687171B1 (en) |
| CN (1) | CN100353159C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4531547B2 (en) * | 2004-12-14 | 2010-08-25 | アンリツ産機システム株式会社 | X-ray foreign object detection device |
| JP5933199B2 (en) * | 2011-07-07 | 2016-06-08 | アンリツインフィビス株式会社 | X-ray inspection equipment |
| JP2017167059A (en) * | 2016-03-17 | 2017-09-21 | 株式会社イシダ | Optical inspection device |
| CN107321646B (en) * | 2017-07-26 | 2019-04-30 | 成都理工大学 | Atomic ore separation system |
| JP7182927B2 (en) * | 2018-07-18 | 2022-12-05 | 株式会社ニチレイフーズ | Bean pod inspection method and pod food manufacturing method |
| JP7152525B2 (en) * | 2019-02-06 | 2022-10-12 | 株式会社Fuji | WORK INSPECTION DEVICE AND WORK INSPECTION METHOD |
| EP4027135A1 (en) | 2021-01-08 | 2022-07-13 | ISHIDA CO., Ltd. | X-ray inspection system, x-ray inspection device, and x-ray inspection method |
| CN115482171B (en) * | 2022-09-27 | 2023-05-02 | 瑞石心禾(河北)医疗科技有限公司 | Method and device for correcting uniformity of gamma camera |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09240830A (en) * | 1996-03-01 | 1997-09-16 | Nikka Densoku Kk | Soft material conveying device and soft material inspection device |
| JPH10208046A (en) * | 1997-01-21 | 1998-08-07 | Shimadzu Corp | X-ray foreign matter detection |
| CN1047848C (en) * | 1997-02-26 | 1999-12-29 | 中国科学院上海技术物理研究所 | Automatic in-situe optoelectronic cotton impurity detecting method and equipment |
| JP2001033753A (en) * | 1999-06-11 | 2001-02-09 | Samsung Electronics Co Ltd | Liquid crystal projection system |
| CN1354627A (en) * | 1999-06-08 | 2002-06-19 | 日本烟草产业株式会社 | Apparatus for detecting foreign matter in raw material and method of detecting the same |
| CN1381716A (en) * | 2001-04-17 | 2002-11-27 | 株式会社岛津制作所 | Radiation testing device and radiation testing method |
-
2003
- 2003-03-12 JP JP2003067103A patent/JP3804619B2/en not_active Expired - Fee Related
-
2004
- 2004-01-02 CN CNB2004100012039A patent/CN100353159C/en not_active Expired - Fee Related
- 2004-02-16 KR KR1020040009895A patent/KR100687171B1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09240830A (en) * | 1996-03-01 | 1997-09-16 | Nikka Densoku Kk | Soft material conveying device and soft material inspection device |
| JPH10208046A (en) * | 1997-01-21 | 1998-08-07 | Shimadzu Corp | X-ray foreign matter detection |
| CN1047848C (en) * | 1997-02-26 | 1999-12-29 | 中国科学院上海技术物理研究所 | Automatic in-situe optoelectronic cotton impurity detecting method and equipment |
| CN1354627A (en) * | 1999-06-08 | 2002-06-19 | 日本烟草产业株式会社 | Apparatus for detecting foreign matter in raw material and method of detecting the same |
| JP2001033753A (en) * | 1999-06-11 | 2001-02-09 | Samsung Electronics Co Ltd | Liquid crystal projection system |
| CN1381716A (en) * | 2001-04-17 | 2002-11-27 | 株式会社岛津制作所 | Radiation testing device and radiation testing method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040080961A (en) | 2004-09-20 |
| CN1530644A (en) | 2004-09-22 |
| JP2004279059A (en) | 2004-10-07 |
| KR100687171B1 (en) | 2007-02-27 |
| JP3804619B2 (en) | 2006-08-02 |
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