CN104091748B - Ionization chamber adjusting means - Google Patents

Ionization chamber adjusting means Download PDF

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Publication number
CN104091748B
CN104091748B CN201410325912.6A CN201410325912A CN104091748B CN 104091748 B CN104091748 B CN 104091748B CN 201410325912 A CN201410325912 A CN 201410325912A CN 104091748 B CN104091748 B CN 104091748B
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CN
China
Prior art keywords
ionization chamber
guide rail
movable object
platform
adjusting means
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Expired - Fee Related
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CN201410325912.6A
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Chinese (zh)
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CN104091748A (en
Inventor
吴金杰
蒋伟
李兵
陈法君
杨元第
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National Institute of Metrology
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National Institute of Metrology
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Priority to CN201410325912.6A priority Critical patent/CN104091748B/en
Publication of CN104091748A publication Critical patent/CN104091748A/en
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Abstract

The present invention relates to a kind of ionization chamber adjusting means, including: pedestal, pedestal has the first guide rail;Ionization chamber position regulator, including: one-level movable object-carrying stage, translation on the first guide rail, and there is the second guide rail, the first guide rail is along X-ray main beam direction, and the second guide rail is vertical with the direction of the first guide rail;Two grades of movable object-carrying stages, translation on the second guide rail;Three grades of movable object-carrying stages, adjust platform including vertical lifting, and vertical lifting adjusts has holder ionization chamber on platform, for regulating the height of ionization chamber;Regulation one-level movable object-carrying stage translation on the first guide rail, two grades of movable object-carrying stage translations on the second guide rail, vertical lifting adjusts platform regulation ionization chamber height so that the sensitive volume center of laser center alignment ionization chamber, laser center is identical with X-ray main beam center.Ionization chamber adjusting means of the present invention achieves the convenient and adjustment of accurate ionization chamber position.

Description

Ionization chamber adjusting means
Technical field
The present invention relates to a kind of ionization chamber adjusting means, particularly relate to the adjusting means of a kind of ionization chamber position.
Background technology
X-ray Standard Ratio device is used for the calibrating of X-radiation instrument, calibrates and detect, and industry The fields such as Non-Destructive Testing, need the most held and position adjustment for ionization chamber to be detected, by This makes X-ray inject easily.
Summary of the invention
It is an object of the invention to the defect for prior art, it is provided that a kind of ionization chamber adjusting means, thus Realize the convenient and adjustment of accurate ionization chamber position.
For achieving the above object, the invention provides a kind of ionization chamber adjusting means, described ionization chamber regulates Device includes:
Pedestal, described pedestal has the first guide rail;
Ionization chamber position regulator, including:
One-level movable object-carrying stage, is slidably installed on the first guide rail, translation on described first guide rail, and There is the second guide rail, described first guide rail along X-ray main beam direction, described second guide rail and described first The direction of guide rail is vertical;
Two grades of movable object-carrying stages, are slidably installed on described second guide rail, translation on described second guide rail;
Three grades of movable object-carrying stages, connect, including vertical lifting with described two grades of movable object-carrying stages Adjusting platform, described vertical lifting adjusts has holder ionization chamber on platform, is used for regulating described electricity Height from room;
Wherein, the translation on described first guide rail of one-level movable object-carrying stage, two grades of mobile loadings are regulated Platform translation on described second guide rail, vertical lifting adjusts platform and regulates described ionization chamber height so that Laser center is directed at the sensitive volume center of described ionization chamber, described laser center and described X-ray main beam Center is identical.
Further, described two grades of movable object-carrying stages include: slide block, slide with described second guide rail and set; Leading screw, one end is connected with motor, and the other end is connected with described slide block, drives leading screw band by described motor Dynamic described slide block is at described second slide.
Further, described vertical lifting adjusts platform and has support arm and first rotating shaft of intersection, passes through Rotate the intersecting angle of the described first rotating shaft described support arm of change thus regulate height.
Further, described fixture includes:
Subbase, described subbase has screwed hole, utilizes screw to fix with support platform;
Support bar, is screwed onto on described subbase, and the upper end of described support bar has socket;
Clamp head, described clamp head includes:
Fixed component, described fixed component utilizes connecting rod to be plugged on the socket of described support bar;
Mobile parts, including metallic rod, one end of metallic rod is plugged in described fixed component, another End utilizes connector to fix, and described connector has opened screw;Clamping part, is socketed in described metal On bar;Adjusting rod, is screwed onto in described screw, and one end is regulation head, the other end and described clamping Portion fixes;
Wherein, when regulating described regulation head, the adjusting rod being arranged in described screw and described metallic rod Moving in parallel, adjusting rod drives described clamping part and described fixed component jointly to clamp ionization chamber.
Further, described subbase, support bar, fixed component, connecting rod, clamping part and connector Material be lucite.
Further, the material of described metallic rod and adjusting rod is metal.
Further, described fixed component is plane or arcwall face with the opposite face of clamping part, described folder The opposite face holding portion and fixed component is plane or arcwall face.
Ionization chamber adjusting means of the present invention achieves the convenient and adjustment of accurate ionization chamber position.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of ionization chamber adjusting means of the present invention;
Fig. 2 is the working state schematic representation of ionization chamber adjusting means of the present invention
Fig. 3 is the schematic diagram of the fixture of ionization chamber adjusting means of the present invention;
Fig. 4 is the top view of the clamp head of ionization chamber adjusting means of the present invention.
Detailed description of the invention
Below by drawings and Examples, technical scheme is described in further detail.
Fig. 1 is the schematic diagram of ionization chamber adjusting means of the present invention, and Fig. 2 is ionization chamber adjusting means of the present invention Working state schematic representation;As it can be seen, ionization chamber position regulator of the present invention includes: pedestal 5 He Ionization chamber position regulator 6.
Ionization chamber position regulator 6 includes 1, two grades of movable object-carrying stage 2 and of one-level movable object-carrying stage Three grades of movable object-carrying stages 3.
There is on pedestal 5 first guide rail 10.
One-level movable object-carrying stage 1 is slidably installed on the first guide rail 10, translation on the first guide rail 10, and There is the second guide rail 11, the first guide rail 10 along X-ray main beam direction, the second guide rail 11 and the first guide rail The direction of 10 is vertical;Two grades of movable object-carrying stages 2, are slidably installed on the second guide rail 11, at the second guide rail 11 Upper translation;Three grades of movable object-carrying stages 3 connect, including vertical lifting with two grades of movable object-carrying stages 2 Adjust platform 30, vertical lifting adjustment platform 30 has fixture 7 and clamps ionization chamber, be used for regulating ionization The height of room;Regulation one-level movable object-carrying stage 1 translation on the first guide rail 10, two grades of mobile loadings are put down Platform 2 translation on the second guide rail 11, vertical lifting adjusts platform 30 and regulates ionization chamber height so that swash The sensitive volume center of light center alignment ionization chamber, laser center is identical with X-ray main beam center.
Concrete, one-level movable object-carrying stage 1 adjusts along the X-axis in X-ray beam direction.Two grades of shiftings Dynamic article carrying platform 2 adjusts along the Y-axis being perpendicular to X-direction in horizontal plane.Three grades of mobile loadings are put down Platform 3, along the lift adjustment of vertical direction, is i.e. that Z axis adjusts.
First guide rail 10 is fixed on pedestal 5, and pedestal 5 is fixed on ground by expansion bolt, and The level of pedestal 5 is ensured after installation.The flatness levelness of pedestal 5 upper surface is less than 1mm, to ensure the The horizontality that one guide rail 10 and grating scale are installed.First guide rail 10 is that two closed slides are fixed by screw Being installed on pedestal 5, the one-level movable object-carrying stage 1 carried with top is connected by slide block.Tooth bar is pacified Being loaded on the right side of pedestal 5 and be fixed on pedestal 5 by screw, the one-level on tooth bar and the first guide rail 10 moves Article carrying platform motor is connected by gear, in order to complete the accurate mobile of whole one-level movable object-carrying stage 1. Grating scale is arranged on the left margin of pedestal, realizes one-level movable object-carrying stage 1X by sensor axial It is accurately positioned.One-level article carrying platform 1 is placed in above the first guide rail 10, for two grades of movable object-carrying stages 2 With three grades of movable object-carrying stages 3, and include two the second guide rails 11 along Y direction.
Two grades of movable object-carrying stages 2 include that slide block, leading screw and motor, slide block and the second guide rail are sliding and set;Silk One end of thick stick is connected with motor, and the other end is connected with slide block, drives leading screw band movable slider the by motor Two slide.
Concrete, two grades of movable object-carrying stages 2 are connected by slide block with between the second guide rail 11.Leading screw and two Second guide rail 11 is parallel, is placed in guideway centreline, and one end is connected with motor, and the other end is fixed on one-level loading On platform 1 (leading screw can realize rotating), leading screw is similar to through being fixed on two grades of article carrying platform 2 lower surfaces In the structure of nut device, thus realize two grades of movable object-carrying stages 2 by driven by motor screw turns Movement in Y direction.
Three grades of movable object-carrying stages 3 include that vertical lifting adjusts platform, Manual lifting platform of for example, cultrating, There is support arm and first rotating shaft of intersection, change the friendship of described support arm by rotating described first rotating shaft Pitch angle thus regulate height.Also including that lappingout leading screw drives, the design of upper and lower surface multi-hole position is cultrated manually Hoistable platform, is furnished with locking handwheel, is fixed by screw with two grades of article carrying platforms 2.Vertical lifting adjusts Platform upper surface has multiple screwed hole, can realize fixture and be fixed on hoistable platform upper surface by screw.
Ionization chamber is finally to be handled by clip, is fixed on three grades of movable object-carrying stages 3.
The fixture that installation and ionization chamber model adapt, on three pole article carrying platforms 3, takes out ionization to be measured Room is fixed by holder.Connect ionization chamber and measure system.Adjust two grades of pole article carrying platforms and three grades of poles Article carrying platform position so that (cross laser center is i.e. X-ray main beam center at cross laser center Position) impinge upon the sensitive volume center of ionization chamber.
Open X-ray ray machine afterwards, X-ray machine parameter is set, rotate additional filtration rotating disk required in experiment At specification.Carried out X-axis by motor software control one-level article carrying platform and move to operating position.Then Proceed by ionization chamber ionization current to measure, measure complete under this specification, preserve data.Adjust X-ray again Machine parameter, adjusts X-axis position, measures different specification.
Due to the difference of the type kind of ionization chamber, the specification of measurement is different, it is therefore desirable to penetrate in distance X The various location of spool measures, and that is to say the X-axis position adjustment needed during measuring.By In the difference of the size of ionization chamber, for making the sensitive volume of ionization chamber be positioned in X-ray main beam Heart position, the most different ionization chambers needs to carry out the position adjustment of different Y-axis and Z axis.
Moving with Z axis eventually through completing Y-axis, the sensitive locations carrying out ionization chamber is in X-ray beam Center.Moved by the position of X-axis, complete the measurement of different ionization chamber different specification.
Fig. 3 is the schematic diagram of the fixture of ionization chamber adjusting means of the present invention, and Fig. 4 is that ionization chamber of the present invention is adjusted The top view of the clamp head of regulating device, as it can be seen, fixture specifically includes: subbase 73, support bar 72 With clamp head 71.Clamp head 71 includes fixed component 711 and mobile parts 710.
Subbase 73 has screwed hole, utilizes screw and three grades of movable object-carrying stages to fix;Support bar 72 Being screwed onto on subbase 73, the upper end of support bar 72 has socket.
Fixed component 711 utilizes connecting rod 7110 to be plugged on the socket of support bar 72.Mobile parts 710 Including metallic rod 7100, one end of metallic rod 7100 is plugged in fixed component 711, and the other end utilizes even Fitting 7101 fixes, and connector 7101 has been opened screw 7102;Clamping part 7103 is socketed in metal On bar 7100;Adjusting rod 7104 is screwed onto in screw 7102, and one end is regulation 7105, another End fixes with clamping part 7103.
During regulation regulation 7105, adjusting rod 7104 and the metallic rod 7100 being arranged in screw 7102 Moving in parallel, adjusting rod 7104 drives clamping part 7103 and fixed component 711 jointly to clamp ionization chamber.
Concrete, the material of subbase 73 is machine glass, is a diameter 10 centimetres, the circle of thick 1 centimetre Dish, has 9 rounded distributions in minor thread hole, realizes consolidating of subbase 73 and support platform by screw Fixed.There is 1 slightly larger screwed hole at subbase 73 center, can realize support bar 72 and be screwed into, and supports for fixing Bar 72.
The material of support bar 72 is lucite, and the 7 bar 2 bottom bar faces that support are threaded, and can be screwed into the end Dish seat 73.Support bar 72 upper end be hollow pipe assembling structure be socket, the connecting rod of clamp head 71 can be realized The insertion of 7110, is screwed into fixed component 711 by connecting rod 7110 upper side and realizes fixing locked.
Fixed component 711 is a square lucite body.Clamping part 7103 is socketed in metallic rod 7100, Can move along metallic rod, concrete shift motion is determined by adjusting rod 7104, utilizes regulation 7105 Rotation adjusting lever 7104, to realize clamping part 7103 closer and farther from fixed component 711, it is achieved clamping merit Energy.
Work process is specific as follows:
Preliminary installation: on screw firm banking dish with ionization chamber three-dimensional regulation platform, big according to ionization chamber Little, select certain height support bar to be screwed into base disk.According to ionization chamber model, select different clamp head.
The clamping part of clamp head and the opposite face of fixed component can be according to different model and the ionization chambers of shape Relative to each other that carries out different selections, such as fixed component and clamping part is plane parallel to each other, Or symmetrical arcwall face, or parallel cambered surface.
After installing fixture, put into ionization chamber and move between parts and fixed component in fixture.Tighten spiral shell Rasp bar, fixes ionization chamber.
Because ionization chamber model varies in size, therefore the fixture needs of the present invention are fixed on ionization chamber different Position, then can select the support bar of different length.Because the distinctive appearance structure of ionization chamber, the most permissible Select different clamp head.It is finally completed the fixing of ionization chamber.
Above-described detailed description of the invention, is carried out the purpose of the present invention, technical scheme and beneficial effect Further describe, be it should be understood that the foregoing is only the present invention detailed description of the invention and , the protection domain being not intended to limit the present invention, all within the spirit and principles in the present invention, done Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.

Claims (7)

1. an ionization chamber adjusting means, it is characterised in that described ionization chamber adjusting means includes:
Pedestal, described pedestal has the first guide rail;
Ionization chamber position regulator, including:
One-level movable object-carrying stage, is slidably installed on the first guide rail, translation on described first guide rail, and There is the second guide rail, described first guide rail along X-ray main beam direction, described second guide rail and described first The direction of guide rail is vertical;
Two grades of movable object-carrying stages, are slidably installed on described second guide rail, translation on described second guide rail;
Three grades of movable object-carrying stages, connect, including vertical lifting with described two grades of movable object-carrying stages Adjusting platform, described vertical lifting adjusts has holder ionization chamber on platform, is used for regulating described electricity Height from room;
Wherein, the translation on described first guide rail of one-level movable object-carrying stage, two grades of mobile loadings are regulated Platform translation on described second guide rail, vertical lifting adjusts platform and regulates described ionization chamber height so that Laser center is directed at the sensitive volume center of described ionization chamber, described laser center and described X-ray main beam Center is identical.
Ionization chamber adjusting means the most according to claim 1, it is characterised in that described two grades of movements Article carrying platform includes:
Slide block, slides with described second guide rail and sets;
Leading screw, one end is connected with motor, and the other end is connected with described slide block, drives silk by described motor Thick stick drives described slide block at described second slide.
Ionization chamber adjusting means the most according to claim 1, it is characterised in that described vertical lifting Adjust platform and there is support arm and first rotating shaft of intersection, change described by rotating described first rotating shaft The intersecting angle of brace thus regulate height.
Ionization chamber adjusting means the most according to claim 1, it is characterised in that described fixture includes:
Subbase, described subbase has screwed hole, utilizes screw to fix with support platform;
Support bar, is screwed onto on described subbase, and the upper end of described support bar has socket;
Clamp head, described clamp head includes:
Fixed component, described fixed component utilizes connecting rod to be plugged on the socket of described support bar;
Mobile parts, including metallic rod, one end of metallic rod is plugged in described fixed component, another End utilizes connector to fix, and described connector has opened screw;Clamping part, is socketed in described metal On bar;Adjusting rod, is screwed onto in described screw, and one end is regulation head, the other end and described clamping Portion fixes;
Wherein, when regulating described regulation head, the adjusting rod being arranged in described screw and described metallic rod Moving in parallel, adjusting rod drives described clamping part and described fixed component jointly to clamp ionization chamber.
Ionization chamber adjusting means the most according to claim 4, it is characterised in that described subbase, The material of support bar, fixed component, connecting rod, clamping part and connector is lucite.
Ionization chamber adjusting means the most according to claim 4, it is characterised in that described metallic rod and The material of adjusting rod is metal.
Ionization chamber adjusting means the most according to claim 4, it is characterised in that described fixed component Being plane or arcwall face with the opposite face of clamping part, described clamping part is flat with the opposite face of fixed component Face or arcwall face.
CN201410325912.6A 2014-07-09 2014-07-09 Ionization chamber adjusting means Expired - Fee Related CN104091748B (en)

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Publication number Priority date Publication date Assignee Title
CN104690699B (en) * 2015-03-13 2017-03-22 中国计量科学研究院 Multi-dimensional displacement platform
CN104934285B (en) * 2015-07-03 2017-03-08 中国计量科学研究院 Ionization chamber measures volume adjustment means
CN106483549B (en) * 2016-10-28 2019-09-27 中国计量科学研究院 Detection method based on ionization chamber system
CN106548919B (en) * 2016-10-28 2018-02-09 中国计量科学研究院 Ionisation chamber detecting system
CN109959963B (en) * 2019-04-29 2024-01-26 中国计量科学研究院 Ionization chamber fixture

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DE2941580A1 (en) * 1979-10-13 1981-04-23 Hauni-Werke Körber & Co KG, 2050 Hamburg DEVICE FOR TESTING THE DENSITY OF A STRING OF TOBACCO
JPS5856332A (en) * 1981-09-30 1983-04-04 Hitachi Ltd Correction of defect in mask and device thereof
US7341641B2 (en) * 2002-03-20 2008-03-11 Lg.Philips Lcd Co., Ltd. Bonding device for manufacturing liquid crystal display device
CN102706910B (en) * 2012-05-30 2014-07-16 中国科学院上海应用物理研究所 Multi-dimensional adjustment platform

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