CN104236426B - A kind of grid measurement method for distance for ion thruster grid assembly and measurement have - Google Patents
A kind of grid measurement method for distance for ion thruster grid assembly and measurement have Download PDFInfo
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- CN104236426B CN104236426B CN201410449605.9A CN201410449605A CN104236426B CN 104236426 B CN104236426 B CN 104236426B CN 201410449605 A CN201410449605 A CN 201410449605A CN 104236426 B CN104236426 B CN 104236426B
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Abstract
The invention discloses a kind of grid distance measurement tool for ion thruster grid assembly, the measurement tool is made up of one group of different step shaft type feeler gauge of detection segment length；The step shaft type feeler gauge is made of conductive metallic material, and step shaft type feeler gauge is divided into handle section and detection section by the step in the step shaft type feeler gauge, detects section with diameter greater than accelerating grid electrode aperture, and less than screen-grid aperture；Handle section is with diameter greater than screen-grid aperture.Present invention also offers a kind of measuring method, by special feeler gauge insertion screen-grid hole, the grid spacing of tested grid assembly is judged by the way that whether the front end face of special feeler gauge touches accelerating grid electrode；Whether accelerating grid electrode is contacted come the front end for judging special feeler gauge with whether accelerating grid electrode conducts using universal meter detection screen-grid during detection.The characteristics of present invention is for ion thruster grid assembly, efficiently solves the detection technique problem of grid assembly spherical area grid spacing.
Description
Technical field
It is used for ion thruster grid group the present invention relates to the method that peculiar part assembles spacing detection, more particularly to one kind
The measuring method of part spherical area grid spacing and measurement have.
Background technology
Ion thruster is the thruster of advanced space device application, compared with traditional chemical thruster, with height
Specific impulse and long-life feature, the position for being mainly used in telecommunication satellite keep being promoted mainly with Orbit Transformation, survey of deep space spacecraft
The task such as enter.After spacecraft application ion thruster, propellant carrying amount can be significantly reduced, increase payload, can brought
Significant economic benefit, while spacecraft comprehensive technical level can be substantially improved.Grid assembly is the core of ion thruster product
Heart component, its function is to draw and accelerate arc chamber ion and produce thrust, be directly determine ion thruster performance, the life-span and
The core component of reliability.
Grid assembly is mainly made up of screen-grid, accelerating grid electrode and other structural members, and two grids are thin spherical shell class zero
Part, gate hole enormous amount, the spacing between two grids is key parameter, must be detected during assembling and be controlled.
Existing detection technique is only capable of realizing the grid spacing detection (gate edge is plane) in gate edge region, for grid
The detection of component spherical area grid spacing, existing detection technique cannot realize that reason is the particularity of grid assembly structure, standard
Test measuring device and instrument cannot realize the detection of grid spacing.
The content of the invention
In view of this, the invention provides a kind of method of ion thruster grid assembly spherical area grid distance measurement,
The method detects grid spacing for the design feature of grid assembly using special feeler gauge, and detection process is simple to operation, is capable of achieving
The grid spacing detection of many any positions of specification grid assembly spherical area.
Technical solution of the invention is：
A kind of grid distance measurement tool for ion thruster grid assembly, the grid assembly includes screen-grid and acceleration
Grid, measurement tool is made up of one group of different step shaft type feeler gauge of detection segment length；The step shaft type feeler gauge is using conductive
Metal material is made, and step shaft type feeler gauge is divided into handle section and detection section by the step in the step shaft type feeler gauge, detects section
With diameter greater than accelerating grid electrode aperture, and less than screen-grid aperture；Handle section is with diameter greater than screen-grid aperture.
Preferably, handle section diameter 0.5mm~0.8mm bigger than screen-grid aperture.
Preferably, one group of detection segment length scope of step shaft type feeler gauge is 0.80mm~2.00mm, every 0.01mm mono-
Individual specification.
Present invention also offers a kind of grid measurement method for distance for ion thruster grid assembly, using above-mentioned any
One kind measurement tool realizes that the method includes：Successively by the step shaft type feeler gauge insertion screen-grid hole of each specification；Often insert one
Individual step shaft type feeler gauge, tested grid assembly is determined by the way that whether the front end face of step shaft type feeler gauge touches accelerating grid electrode
Grid spacing.
A kind of determination scheme of grid spacing is：For the step shaft type feeler gauge for touching accelerating grid electrode, by the step shaft type plug
The length of rule detection section subtracts screen-grid thickness t, is detected by the step shaft type feeler gauge of multiple length, obtains the survey at test point
Amount result.
Another more excellent grid spacing determines that scheme is：According to detection section from order long is short to, successively by each specification
Step shaft type feeler gauge insertion screen-grid hole in；The detection segment length of the step shaft type feeler gauge of initial contact to accelerating grid electrode is subtracted
Remove screen-grid thickness t, the grid spacing as at test point.
Wherein, whether whether the front end for conducting to judge special feeler gauge using universal meter detection screen-grid and accelerating grid electrode
Contact accelerating grid electrode.
Universal meter is set to the buzzing shelves of resistance detection, if the front end face of step shaft type feeler gauge touches accelerating grid electrode,
Then two grids are by the short circuit of step shaft type feeler gauge, universal meter buzzing.
Compared with the prior art, the invention has the advantages that：
(1) present invention is special for the structure of ion thruster grid assembly, there is provided one kind is applied to spherical area grid
The measurement tool of die opening, efficiently solves the detection technique problem of grid assembly spherical area grid spacing, and measurement tool
Simple structure, measurement is convenient.
(2) according to grid pore size, handle section diameter 0.5mm~0.8mm bigger than screen-grid aperture is set, the size
Have between design causes handle section from probeing into grid, and when will not cause the grid distance measurement for being applied to cambered surface grid because area is excessive
There is larger measurement error.
(3) the characteristics of grid spacing detection method that the invention is provided has easy to use flexible, economic and practical, detection essence
Degree reaches 0.01mm, can be applied to seriation ion thruster grid assembly and the spacing detection of other similar products.
(4) for each test point, according to detection section from order long is short to, successively by the step shaft type of each specification
In feeler gauge insertion screen-grid hole, then the detection segment length of the step shaft type feeler gauge of initial contact to accelerating grid electrode subtracts screen-grid
Grid spacing at thickness t, as test point.This mode can obtain grid distance measurement result with minimum number of attempt, carry
Detection efficiency high.
(5) universal meter auxiliary judgment of the present invention, low cost, and can effectively judge feeler gauge front end face whether touch plus
Fast grid, solves the technical barrier of the detection of grid assembly spherical area grid spacing.
Brief description of the drawings
Fig. 1 is the grid spacing detection method schematic diagram of ion thruster grid assembly of the present invention；
Fig. 2 is the geometrical relationship figure of feeler gauge and grid when detecting grid spacing；
Step shaft type feeler gauge 1, screen-grid 2, accelerating grid electrode 3, δ represent grid spacing, and L represents that feeler gauge detects segment length, t tables
Display screen gate.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, and the present invention will be described in detail.
Measurement target of the invention is the grid spacing of ion thruster grid assembly, as shown in figure 1, grid assembly includes screen
Grid 2 and accelerating grid electrode 3, and there is certain radian in the middle of it.Screen-grid 2 and accelerating grid electrode 3 are network structure, and screen-grid 2
Aperture more than accelerating grid electrode 3 aperture.
Based on above-mentioned analysis, the invention provides a kind of grid distance measurement tool for ion thruster grid assembly, its
It is made up of one group of different step shaft type feeler gauge 1 of detection segment length.A step shaft type feeler gauge is merely illustrated in Fig. 1.Step Shaft
Formula feeler gauge is made of conductive metallic material, and step shaft type feeler gauge is divided into handle section and detection section by step therein, detects section
With diameter greater than accelerating grid electrode aperture, and less than screen-grid aperture so that between detection section can probe into grid, but cannot pass through acceleration
Grid.Handle section is with diameter greater than screen-grid aperture so that between handle section can not probe into grid.Handle section is easy to hand-held, and handle section can
Think multi-section structure.
According to grid pore size, handle section diameter 0.5mm~0.8mm bigger than screen-grid aperture be set, the size sets
Between meter causes handle section from probeing into grid, and will not cause to have during the grid distance measurement for being applied to cambered surface grid because area is excessive
Larger measurement error.
In the present embodiment, according to the possible range of grid spacing, the detection segment length scope of one group of step shaft type feeler gauge is
0.80mm~2.00mm, every mono- specification of 0.01mm, so that certainty of measurement reaches 0.01mm.
When carrying out grid distance measurement using measurement tool, the test pencil of universal meter is contacted and screen-grid, accelerating grid electrode electricity respectively
The constitutional detail of conducting；Successively by the step shaft type feeler gauge insertion screen-grid hole of each specification；Often insert a step shaft type
Whether feeler gauge, acceleration is contacted using universal meter detection screen-grid with whether accelerating grid electrode conducts come the front end for judging special feeler gauge
Grid；Judge the grid spacing of tested grid assembly by the way that whether the front end face of step shaft type feeler gauge touches accelerating grid electrode.
Measurement process of the invention is described in detail with reference to Fig. 1.
(1) the screen-grid side of grid assembly is placed on supporting tooling (in Fig. 1 6) upward, supporting cylinder is placed
On detecting tool platform (in Fig. 1 7), as shown in Figure 1.
(2) test pencil (in Fig. 1 4) of universal meter is contacted with screen-grid supporting plate, screen-grid supporting plate and screen
It is electric conducting state between pole；Another test pencil (in Fig. 1 5) of universal meter is installed supporting screw and is contacted with accelerating grid, the spiral shell
It is electric conducting state between nail and accelerating grid electrode.Universal meter is set to the buzzing shelves of resistance detection.
(3) the special feeler gauge detection segment length size range used in testing is 1.20mm~1.60mm.During detection, in grid
(sampling observation region is true by the technique of specific product for some zonule sampling Detections that the whole spherical area selection of pole component determines
It is fixed).
(4) for each test point, judge specially using whether universal meter detection screen-grid and accelerating grid electrode conduct
Whether accelerating grid electrode is contacted with the front end of feeler gauge, grid spacing is judged by the way that whether the front end face of feeler gauge touches accelerating grid electrode.
For certain feeler gauge of specific length, when detecting the spacing at a gate hole, by whether contact, it can be determined that grid
Distance values subtract screen-grid thickness more than or less than the length of feeler gauge detection section.Feeler gauge and grid when Fig. 2 is for detection grid spacing
Geometrical relationship figure, δ represents grid spacing, and L represents that feeler gauge detects segment length, and t represents screen-grid thickness, if feeler gauge front end face
Accelerating grid electrode is contacted, then δ ＜ L-t；If feeler gauge front end face is not in contact with accelerating grid electrode, δ ＞ L-t.By the plug of multiple length
Rule detection, provides the measurement result at test point.
Preferably for each test point, according to detection section from order long is short to, successively by the step of each specification
In shaft type feeler gauge insertion screen-grid hole.If the front end face of step shaft type feeler gauge touches accelerating grid electrode, two grids pass through
The short circuit of step shaft type feeler gauge, universal meter buzzing.The detection segment length of the step shaft type feeler gauge of initial contact to accelerating grid electrode is subtracted
Remove screen-grid thickness t, the grid spacing as at test point.This mode can obtain grid distance measurement with minimum number of attempt
As a result.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (6)
1. a kind of grid measurement method for distance for ion thruster grid assembly, the grid assembly includes screen-grid and acceleration
Grid, it is characterised in that the method measurement tool used is made up of one group of different step shaft type feeler gauge (1) of detection segment length；Institute
State step shaft type feeler gauge (1) to be made of conductive metallic material, the step in the step shaft type feeler gauge is by step shaft type feeler gauge
It is divided into handle section and detection section, detects section with diameter greater than accelerating grid electrode (3) aperture, and less than screen-grid (2) aperture；Handle section is straight
Footpath is more than screen-grid aperture；
Further, a kind of grid measurement method for distance for ion thruster grid assembly, comprises the following steps：
Successively by the step shaft type feeler gauge insertion screen-grid hole of each specification；A step shaft type feeler gauge is often inserted, by platform
Whether the front end face of rank shaft type feeler gauge touches accelerating grid electrode to determine the grid spacing of tested grid assembly；
The determination methods whether front end face of the step shaft type feeler gauge touches accelerating grid electrode are to detect screen using universal meter
Whether pole conducts with accelerating grid electrode.
2. measuring method as claimed in claim 1, it is characterised in that handle section diameter 0.5mm bigger than screen-grid aperture~
0.8mm。
3. measuring method as claimed in claim 1, it is characterised in that the detection segment length scope of one group of step shaft type feeler gauge is
0.80mm~2.00mm, every mono- specification of 0.01mm.
4. measuring method according to claim 1, it is characterised in that：It is described a kind of for ion thruster grid assembly
In grid measurement method for distance, for the step shaft type feeler gauge for touching accelerating grid electrode, the step shaft type feeler gauge is detected the length of section
Degree subtracts screen-grid thickness t, is detected by the step shaft type feeler gauge of multiple length, obtains the measurement result at test point.
5. measuring method according to claim 4, it is characterised in that：It is described a kind of for ion thruster grid assembly
In grid measurement method for distance, according to detection section from order long is short to, the step shaft type feeler gauge of each specification is inserted into screen successively
In grid hole；The detection segment length of the step shaft type feeler gauge of initial contact to accelerating grid electrode is subtracted into screen-grid thickness t, is as examined
Grid spacing at measuring point.
6. measuring method according to claim 5, it is characterised in that：It is described a kind of for ion thruster grid assembly
In grid measurement method for distance, universal meter is set to the buzzing shelves of resistance detection, if the front end face of step shaft type feeler gauge is touched
Accelerating grid electrode, then two grids are by the short circuit of step shaft type feeler gauge, universal meter buzzing.
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| CN201410449605.9A CN104236426B (en) | 2014-09-04 | 2014-09-04 | A kind of grid measurement method for distance for ion thruster grid assembly and measurement have |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097407A (en) * | 2015-07-13 | 2015-11-25 | 兰州空间技术物理研究所 | Small-caliber and variable-aperture grid assembly |
| CN105021405B (en) * | 2015-07-16 | 2016-06-15 | 兰州空间技术物理研究所 | A kind of ion thruster ground experiment line target |
| CN110673195B (en) * | 2019-08-26 | 2021-04-13 | 北京控制工程研究所 | Device and method for measuring transient ion flow field of plasma thruster |
| CN113375579B (en) * | 2021-06-25 | 2022-08-23 | 上海工程技术大学 | Method and platform for detecting grid surface spacing of grid assembly |
| CN113279930B (en) * | 2021-06-30 | 2022-07-12 | 哈尔滨工业大学 | Grid component assembly structure and assembly method of micro ion thruster |
| CN114934883A (en) * | 2022-05-25 | 2022-08-23 | 兰州空间技术物理研究所 | Curved surface grid assembly of ion thruster |
| CN118156107A (en) * | 2022-12-06 | 2024-06-07 | 江苏鲁汶仪器股份有限公司 | Ion beam apparatus, ion source device and grid structure thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950045Y (en) * | 2006-08-21 | 2007-09-19 | 姚军 | Multi-in-one plug gauge |
| CN202661018U (en) * | 2012-04-13 | 2013-01-09 | 苏州晶瓷超硬材料有限公司 | Detection device for processing inner step hole on ceramic plunger |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3026621A (en) * | 1960-02-19 | 1962-03-27 | Joseph S Papps | Hole position gauging means |
| CN101315268A (en) * | 2007-05-31 | 2008-12-03 | 力帆实业(集团)股份有限公司 | Detecting fixture for step hole depth of rotating speed output shaft |
| CN201093988Y (en) * | 2007-09-30 | 2008-07-30 | 襄阳汽车轴承股份有限公司 | Apparatus for measuring axial distance between inner bushing small end face and outer bushing large end face of conical roller bearing |
| CN102261883B (en) * | 2010-05-28 | 2013-02-20 | 中国航空工业标准件制造有限责任公司 | Detecting tool for measuring distance between two parallel surfaces |
| CN202267436U (en) * | 2011-11-01 | 2012-06-06 | 重庆江达铝合金轮圈有限公司 | Hole depth testing tool for hub pilot hole |
| CN202630823U (en) * | 2012-05-30 | 2012-12-26 | 新兴重工湖北三六一一机械有限公司 | Stepped plug gauge for measuring through holes |
| CN103673836A (en) * | 2013-12-13 | 2014-03-26 | 合肥京东方光电科技有限公司 | Plug gauge and plug gauge box |
-
2014
- 2014-09-04 CN CN201410449605.9A patent/CN104236426B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200950045Y (en) * | 2006-08-21 | 2007-09-19 | 姚军 | Multi-in-one plug gauge |
| CN202661018U (en) * | 2012-04-13 | 2013-01-09 | 苏州晶瓷超硬材料有限公司 | Detection device for processing inner step hole on ceramic plunger |
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Inventor after: Li Detian Inventor after: Tang Fujun Inventor after: Zhang Tianping Inventor after: Zhang Weiwen Inventor after: Zhou Zhicheng Inventor after: Zheng Maofan Inventor after: Huang Yongjie Inventor after: Sun Yunkui Inventor after: Jia Yanhui Inventor before: Tang Fujun Inventor before: Zhou Zhicheng Inventor before: Zhang Tianping Inventor before: Zheng Maofan Inventor before: Huang Yongjie Inventor before: Sun Yunkui Inventor before: Jia Yanhui |
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