CN113092125A - Blocking potential analyzer capable of collecting in multiple directions - Google Patents
Blocking potential analyzer capable of collecting in multiple directions Download PDFInfo
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- CN113092125A CN113092125A CN202110367483.9A CN202110367483A CN113092125A CN 113092125 A CN113092125 A CN 113092125A CN 202110367483 A CN202110367483 A CN 202110367483A CN 113092125 A CN113092125 A CN 113092125A
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- annular insulating
- grid
- insulating sleeve
- ion energy
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Abstract
The utility model relates to a blocking potential analyzer capable of multi-direction collection, wherein, an inlet grid, an electronic shielding grid and an ion energy scanning grid are all of hemispherical spherical shell structures, and the spherical centers of the three are coincided; the bottom of the inlet grid is embedded between the shell and the first annular insulating sleeve, the bottom of the electronic shielding grid is embedded between the first annular insulating sleeve and the second annular insulating sleeve and is positioned on the inner side of the inlet grid, the bottom of the ion energy scanning grid is embedded between the second annular insulating sleeve and the third annular insulating sleeve and is positioned on the inner side of the electronic shielding grid, and the collector is fixedly arranged in the third annular insulating sleeve and is positioned on the inner side of the ion energy scanning grid; the entrance grid, the electron shielding grid and the ion energy scanning grid are provided with a plurality of through holes and are radially aligned, and ions passing through the radially aligned through holes can be received by the collector. Due to the structural characteristics of the hemispherical grid, the ion energy distribution from multiple directions can be diagnosed, and the problem of single measurement direction is solved.
Description
Technical Field
The disclosure relates to the technical field of aerospace, in particular to a retardation potential analyzer capable of collecting in multiple directions.
Background
Space thrusters such as an ion thruster, a Hall thruster, an electrospray thruster and the like are widely applied to spacecraft orbit control and interstellar navigation due to higher specific impulse, longer service life and smaller system mass. The accurate acquisition of the vacuum plume parameters of the electric thruster is crucial to the evaluation of the performances of the electric thruster and the spacecraft; the vacuum plume of the electric thruster mainly comprises plasma which contains univalent ions, bivalent ions, electrons, neutral gas molecules and the like, and the obtained ion energy distribution in the electric thruster vacuum plume is an important index for evaluating the service life of the electric thruster and the plume effect of the electric thruster.
The Retarding Potential Analyzer (RPA) is a plasma contact type diagnostic test instrument suitable for the electric propulsion plume, can be used for diagnosing the distribution of ion energy in the electric propulsion plume, obtains the ion energy characteristics of a beam flow region and a backflow region, and plays a vital role in the design, service life evaluation and the like of an electric thruster. The main structure of the retardation analyzer is generally a tubular structure with a single end open, an inlet grid, an electronic shielding grid, an ion energy scanning grid and a collector are respectively arranged at the inlet of the retardation analyzer from the upstream to the downstream of the RPA probe inlet, and the grid and the collector are mutually isolated by an insulating gasket, so that the working stability under a high-voltage condition is achieved. The mobile ions arriving at the collector form an ion current in the measurement loop of the retardation potential analyzer. The ion current obtained on the collecting electrode changes along with the change of the potential of the ion energy scanning gate, the applied scanning bias voltage is used as a horizontal axis, the ion current is measured as a vertical axis, and then a volt-ampere characteristic curve which changes the collecting current along with the scanning voltage can be obtained. And performing data processing such as filtering, smoothing, derivation and the like on the change curve to obtain an ion energy distribution function.
The existing retardation potential analyzer has a significant problem due to the limitation of the structure of the analyzer, namely the problem of selectivity of the incoming flow particle direction. In short, the parallel arrangement of the flat grid structure limits the particle motion in the probe to axial motion, and the charged particles not parallel to the axial direction of the probe are absorbed by the surface of the grid or the surface of the shell, so as to form a negative deviation of data to a certain extent.
In the beam area, the movement directions of the measured retardation potential analyzer are basically consistent, so that the retardation potential analyzer cannot acquire data when the retardation potential analyzer has an angular deviation with the movement direction of the incoming particles, and the normal operation can be realized only when the axial position of the retardation potential analyzer is adjusted to be the same as the movement direction of the beam. In the reflux area, charge exchange ions belong to a chaotic system, the motion direction of particles is unpredictable, and the selection of a measurement direction of a retardation potential analyzer in the reflux area becomes a problem. In addition, because only ions with one velocity component are selected as a diagnosis object in the measurement of the backflow area, the ion current measured by the blocking potential analyzer is very small, expected experimental data is often submerged in system noise, and the phenomenon often causes troubles to testers in the measurement of the backflow area.
Therefore, the application provides a multi-direction acquisition retardation potential analyzer.
Disclosure of Invention
To address at least one of the above technical problems, the present disclosure provides a multi-directional collectable retardation potential analyzer.
The technical scheme adopted by the invention is as follows:
a blocking potential analyzer capable of multi-direction acquisition comprises a shell, an inlet grid, a first annular insulating sleeve, an electronic shielding grid, a second annular insulating sleeve, an ion energy scanning grid, a third annular insulating sleeve and a collector;
the inlet grid, the electronic shielding grid and the ion energy scanning grid are all of hemispherical spherical shell structures, and the spherical centers of the inlet grid, the electronic shielding grid and the ion energy scanning grid are overlapped;
the bottom of the inlet grid is embedded between the shell and the first annular insulating sleeve, the bottom of the electronic shielding grid is embedded between the first annular insulating sleeve and the second annular insulating sleeve and is positioned on the inner side of the inlet grid, the bottom of the ion energy scanning grid is embedded between the second annular insulating sleeve and the third annular insulating sleeve and is positioned on the inner side of the electronic shielding grid, and the collector is fixedly installed in the third annular insulating sleeve and is positioned on the inner side of the ion energy scanning grid;
the inlet grid, the electronic shielding grid and the ion energy scanning grid are all provided with a plurality of through holes which are uniformly distributed, the corresponding through holes on the grids are radially aligned, and ions passing through the radially aligned through holes can be received by the collector.
Preferably, the upper part of the collector is hemispherical, and the spherical centers of the entrance grid, the electron shielding grid, the ion energy scanning grid and the upper part of the collector coincide.
Preferably, the connector further comprises a first connecting hole, a second connecting hole and a third connecting hole;
the first connecting hole penetrates through the shell and the inlet grid and extends into the first annular insulating sleeve, the first connecting hole is used for installing a first lead, and the end part of the first lead is connected with the inlet grid;
the second connecting hole penetrates through the shell, the inlet grid electrode, the first annular insulating sleeve and the electronic shielding grid electrode and extends into the second annular insulating sleeve, a second lead is installed in the second connecting hole, and the end of the second lead is connected with the electronic shielding grid electrode;
the third connecting hole penetrates through the shell, the inlet grid electrode, the first annular insulating sleeve, the electronic shielding grid electrode, the second annular insulating sleeve and the ion energy scanning grid electrode and extends into the third annular insulating sleeve, a third lead is installed in the third connecting hole, and the end of the third lead is connected with the ion energy scanning grid electrode.
Preferably, the ion energy scanning device further comprises a positioning hole, the positioning hole penetrates through the shell, the inlet grid, the first annular insulating sleeve, the electron shielding grid, the second annular insulating sleeve and the ion energy scanning grid and extends into the third annular insulating sleeve, and the positioning hole is used for installing a positioning pin which is made of insulating materials.
Preferably, the number of the positioning holes is three, and the included angle between every two adjacent positioning holes is 60 degrees.
Preferably, the collector further comprises a fourth connecting hole, the third annular insulating sleeve is provided with a bottom plate, the fourth connecting hole penetrates through the bottom of the outer shell and the bottom plate, the fourth connecting hole is used for installing a fourth lead, and the end of the fourth lead is connected with the collector.
Preferably, the outer surface of the first annular insulating sleeve is provided with a first clamping notch groove, the outer surface of the second annular insulating sleeve is provided with a second clamping notch groove, and the outer surface of the third annular insulating sleeve is provided with a third clamping notch groove.
Preferably, the first annular insulating sleeve is fixed to the housing in a threaded connection manner, the second annular insulating sleeve is fixed to the first annular insulating sleeve in a threaded connection manner, the third annular insulating sleeve is fixed to the second annular insulating sleeve in a threaded connection manner, and the collector is fixed to the third annular insulating sleeve in a threaded connection manner.
Preferably, the bottom side of the inner circular surface of the housing has a connecting thread, the bottom sides of the outer circular surfaces and the bottom sides of the inner circular surfaces of the first annular insulating sleeve, the second annular insulating sleeve and the third annular insulating sleeve have a connecting thread, and the bottom side of the outer circular surface of the collector has a connecting thread.
Preferably, the upper parts of the first annular insulating sleeve, the second annular insulating sleeve and the third annular insulating sleeve are provided with auxiliary mounting grooves for inserting an auxiliary rotating tool so as to rotate to realize threaded connection.
In summary, the present application can diagnose the distribution of ion energy from multiple directions due to the structural characteristics of the hemispherical grid, and solve the problem of single measurement direction; in the beam area, the error caused by the fact that the axis of the probe is not parallel to the direction of the incoming flow particles can be reduced, and as long as the deviation of the angle between the axis of the multi-directionally-collected retardation potential analyzer and the direction of the incoming flow particles is smaller than 90 degrees, the energy of the incoming flow ions can be normally diagnosed; in the back flow region, a multi-direction acquisition retardation potential analyzer converts the 'measurement of ion energy distribution from a single direction on a cross section' into the 'measurement of ion energy distribution from all directions on one point', greatly relieves the data loss phenomenon caused by too low ion number density in the back flow region, and has great engineering application significance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a first cross-sectional view of the present invention;
FIG. 2 is a schematic view of FIG. 1 with a third wire and alignment pin added;
FIG. 3 is a second cross-sectional view of the present invention;
FIG. 4 is a schematic view of FIG. 3 with a second wire and alignment pin added;
FIG. 5 is a third cross-sectional view of the present invention;
FIG. 6 is the view of FIG. 5 with the first wire and alignment pin added;
FIG. 7 is a cross-sectional view of a first annular insulating sleeve of the present invention;
FIG. 8 is a cross-sectional view of a second annular insulating sleeve of the present invention;
FIG. 9 is a cross-sectional view of a third annular insulating sleeve of the present invention.
The labels in the figure are: the structure comprises a shell 1, an inlet grid 2, a first annular insulating sleeve 3, an electronic shielding grid 4, a second annular insulating sleeve 5, an ion energy scanning grid 6, a third annular insulating sleeve 7, a collector 8, a through hole 9, a first connecting hole 10, a second connecting hole 11, a third connecting hole 12, a first lead 13, a second lead 14, a third lead 15, a positioning hole 16, a positioning pin 17, a fourth connecting hole 18, a bottom plate 19, a first clamping notch 20, a second clamping notch 21 and a third clamping notch 22.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
As shown in fig. 1 to 9, a multi-direction collectable retarding potential analyzer comprises a housing 1, an inlet grid 2, a first annular insulating sleeve 3, an electronic shielding grid 4, a second annular insulating sleeve 5, an ion energy scanning grid 6, a third annular insulating sleeve 7 and a collector 8;
the inlet grid 2, the electronic shielding grid 4 and the ion energy scanning grid 6 are all of hemispherical spherical shell structures, the spherical centers of the inlet grid 2, the electronic shielding grid 4 and the ion energy scanning grid 6 are overlapped, the upper part of the collector 8 is hemispherical, and the spherical centers of the inlet grid 2, the electronic shielding grid 4, the ion energy scanning grid 6 and the upper part of the collector 8 are overlapped;
the bottom of the inlet grid 2 is embedded between the shell 1 and the first annular insulating sleeve 3, the bottom of the electronic shielding grid 4 is embedded between the first annular insulating sleeve 3 and the second annular insulating sleeve 5 and is positioned at the inner side of the inlet grid 2, the bottom of the ion energy scanning grid 6 is embedded between the second annular insulating sleeve 5 and the third annular insulating sleeve 7 and is positioned at the inner side of the electronic shielding grid 4, and the collector 8 is fixedly arranged in the third annular insulating sleeve 7 and is positioned at the inner side of the ion energy scanning grid 6;
the entrance grid 2, the electronic shielding grid 4 and the ion energy scanning grid 6 are all provided with a plurality of through holes 9 which are uniformly distributed, the corresponding through holes 9 on the grids are radially aligned, namely the through holes 9 on the entrance grid 2, the electronic shielding grid 4 and the ion energy scanning grid 6 are radially aligned one by one, and ions passing through the radially aligned through holes 9 can be received by the collector 8.
When the blocking potential analyzer is used, due to the arrangement of the hemispherical grid structures on each layer, the ion channels formed by the alignment through holes 9 point to multiple directions, namely, ions from multiple directions can gradually pass through the grids through the corresponding ion channels to further reach the collector 8, and the problem that the measurement direction of the existing blocking potential analyzer is single is effectively solved.
Example 2
As shown in fig. 1 to 9, on the basis of embodiment 1, the present invention further includes a first connection hole 10, a second connection hole 11, and a third connection hole 12;
a first connecting hole 10 penetrates through the shell 1 and the inlet grid 2 and extends into the first annular insulating sleeve 3, the first connecting hole 10 is used for installing a first lead 13, and the end part of the first lead 13 is connected with the inlet grid 2;
a second connecting hole 11 penetrates through the shell 1, the inlet grid 2, the first annular insulating sleeve 3 and the electronic shielding grid 4 and extends into the second annular insulating sleeve 5, the second connecting hole 11 is used for installing a second lead 14, and the end part of the second lead 14 is connected with the electronic shielding grid 4;
a third connecting hole 12 penetrates through the shell 1, the inlet grid 2, the first annular insulating sleeve 3, the electronic shielding grid 4, the second annular insulating sleeve 5 and the ion energy scanning grid 6 and extends into a third annular insulating sleeve 7, the third connecting hole 12 is used for installing a third lead 15, and the end part of the third lead 15 is connected with the ion energy scanning grid 6;
the first lead 13, the second lead 14 and the third lead 15 are all coated with insulating rubber, and are only connected with corresponding grid electrodes at the end parts, the end parts of the leads are all provided with metal heads, the leads can be cooled by liquid nitrogen before installation, and are installed on the corresponding grid electrodes in a cold assembly mode, and after the temperature is balanced, the metal heads at the head parts of the leads are in interference fit with the side holes of the corresponding grid electrodes to form stable connection;
the third annular insulating sleeve 7 is provided with a bottom plate 19, the fourth connecting hole 18 penetrates through the bottom of the shell 1 and the bottom plate 19, the fourth connecting hole 18 is used for installing a fourth lead, the end part of the fourth lead is connected with the collector 8, and the bottom plate 19 plays an insulating role between the collector 8 and the shell 1.
Further, the ion energy scanning grid structure further comprises three positioning holes 16, an included angle between every two adjacent positioning holes 16 is 60 degrees when seen from a top view, the positioning holes 16 penetrate through the shell 1, the inlet grid 2, the first annular insulating sleeve 3, the electron shielding grid 4, the second annular insulating sleeve 5 and the ion energy scanning grid 6 and extend into the third annular insulating sleeve 7, the positioning holes 16 are used for installing the positioning pins 17, the positioning pins 17 are made of insulating materials, specifically, insulating polytetrafluoroethylene or F46 is adopted, the positioning pins 17 play a positioning role, accidental dislocation of the assembled shell 1, the inlet grid 2, the first annular insulating sleeve 3, the electron shielding grid 4, the second annular insulating sleeve 5, the ion energy scanning grid 6 and the third annular insulating sleeve 7 is avoided, dislocation of the first connecting hole 10, the second connecting hole 11 and the third connecting hole 12 is avoided, and the first conducting wire 13, the second conducting wire 14, the third conducting wire 14 and the third conducting wire, The mounting process of the third wire 15 is smoothly performed while preventing the gates from falling off accidentally.
Further, the outer surface of the first annular insulating sleeve 3 is provided with a first clamping notch groove 20, the outer surface of the second annular insulating sleeve 5 is provided with a second clamping notch groove 21, and the outer surface of the third annular insulating sleeve 7 is provided with a third clamping notch groove 22; the bottom of the inlet grid 2 is clamped in a first clamping notch groove 20 and is in contact with the shell 1 and the first annular insulating sleeve 3, the bottom of the electronic shielding grid 4 is clamped in a second clamping notch groove 21 and is in contact with the first annular insulating sleeve 3 and the second annular insulating sleeve 5, and the bottom of the ion energy scanning grid 6 is clamped in a third clamping notch groove 22 and is in contact with the second annular insulating sleeve 5 and the third annular insulating sleeve 7.
Example 3
On the basis of the embodiment 1 or 2, the first annular insulating sleeve 3 is fixedly connected with the shell 1 in a threaded manner, the second annular insulating sleeve 5 is fixedly connected with the first annular insulating sleeve 3 in a threaded manner, the third annular insulating sleeve 7 is fixedly connected with the second annular insulating sleeve 5 in a threaded manner, the collector 8 is fixedly connected with the third annular insulating sleeve 7 in a threaded manner, the outer circle surface and the inner circle surface of the first annular insulating sleeve 3, the second annular insulating sleeve 5 and the third annular insulating sleeve 7 are respectively provided with a connecting thread, the inner circle surface of the shell 1 is provided with a connecting thread, and the outer circle surface of the collector 8 is provided with a connecting thread;
specifically, the bottom side of the inner circular surface of the housing 1 is provided with connecting threads, the bottom sides of the outer circular surfaces and the bottom sides of the inner circular surfaces of the first annular insulating sleeve 3, the second annular insulating sleeve 5 and the third annular insulating sleeve 7 are provided with connecting threads, and the bottom side of the outer circular surface of the collector 8 is provided with connecting threads; the connecting threads are arranged on the bottom sides of all the parts, so that the space is not occupied, the processing amount is reduced, and the thread fixed connection can be realized;
in order to facilitate the rotation and installation of each part, the upper parts of the first annular insulating sleeve 3, the second annular insulating sleeve 5 and the third annular insulating sleeve 7 are respectively provided with an installation auxiliary groove (not shown in the figure), and the installation auxiliary grooves are used for inserting auxiliary rotating tools so as to rotate to realize threaded connection.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. The utility model provides a retardation potential analysis appearance that can multi-direction collection which characterized in that: the ion energy scanning device comprises a shell (1), an inlet grid (2), a first annular insulating sleeve (3), an electron shielding grid (4), a second annular insulating sleeve (5), an ion energy scanning grid (6), a third annular insulating sleeve (7) and a collector (8);
the inlet grid (2), the electronic shielding grid (4) and the ion energy scanning grid (6) are all of hemispherical spherical shell structures, and the spherical centers of the inlet grid, the electronic shielding grid and the ion energy scanning grid are overlapped;
the bottom of the inlet grid (2) is embedded between the shell (1) and the first annular insulating sleeve (3), the bottom of the electronic shielding grid (4) is embedded between the first annular insulating sleeve (3) and the second annular insulating sleeve (5) and is positioned on the inner side of the inlet grid (2), the bottom of the ion energy scanning grid (6) is embedded between the second annular insulating sleeve (5) and the third annular insulating sleeve (7) and is positioned on the inner side of the electronic shielding grid (4), and the collector (8) is fixedly installed in the third annular insulating sleeve (7) and is positioned on the inner side of the ion energy scanning grid (6);
the entrance grid (2), the electron shielding grid (4) and the ion energy scanning grid (6) are provided with a plurality of through holes (9) which are uniformly distributed, the corresponding through holes (9) on each grid are radially aligned, and ions passing through the radially aligned through holes (9) can be received by the collector (8).
2. The multi-directionally collectable retardation potential analyzer of claim 1, wherein: the upper part of the collector (8) is hemispherical, and the spherical centers of the inlet grid (2), the electron shielding grid (4), the ion energy scanning grid (6) and the upper part of the collector (8) are superposed.
3. The multi-directionally collectable retardation potential analyzer of claim 2, wherein: the connecting structure also comprises a first connecting hole (10), a second connecting hole (11) and a third connecting hole (12);
the first connecting hole (10) penetrates through the shell (1) and the inlet grid (2) and extends into the first annular insulating sleeve (3), the first connecting hole (10) is used for installing a first lead (13), and the end part of the first lead (13) is connected with the inlet grid (2);
the second connecting hole (11) penetrates through the shell (1), the inlet grid (2), the first annular insulating sleeve (3) and the electronic shielding grid (4) and extends into the second annular insulating sleeve (5), the second connecting hole (11) is used for installing a second lead (14), and the end part of the second lead (14) is connected with the electronic shielding grid (4);
the third connecting hole (12) penetrates through the shell (1), the inlet grid (2), the first annular insulating sleeve (3), the electronic shielding grid (4), the second annular insulating sleeve (5) and the ion energy scanning grid (6) and extends into the third annular insulating sleeve (7), the third connecting hole (12) is used for installing a third lead (15), and the end part of the third lead (15) is connected with the ion energy scanning grid (6).
4. The multi-directionally collectable retardation potential analyzer of claim 3, wherein: the ion energy scanning device is characterized by further comprising a positioning hole (16), the positioning hole (16) penetrates through the shell (1), the inlet grid electrode (2), the first annular insulating sleeve (3), the electronic shielding grid electrode (4), the second annular insulating sleeve (5) and the ion energy scanning grid electrode (6) and extends into the third annular insulating sleeve (7), the positioning hole (16) is used for installing a positioning pin (17), and the positioning pin (17) is made of insulating materials.
5. The multi-directionally collectable retardation potential analyzer of claim 4, wherein: the number of the positioning holes (16) is three, and the included angle between every two adjacent positioning holes (16) is 60 degrees.
6. The multi-directionally collectable retardation potential analyzer of claim 5, wherein: the collector is characterized by further comprising a fourth connecting hole (18), the third annular insulating sleeve (7) is provided with a bottom plate (19), the fourth connecting hole (18) penetrates through the bottom of the shell (1) and the bottom plate (19), the fourth connecting hole (18) is used for installing a fourth conducting wire, and the end part of the fourth conducting wire is connected with the collector (8).
7. The multi-directionally collectable retardation potential analyzer of claim 6, wherein: the outer surface of the first annular insulating sleeve (3) is provided with a first clamping notch groove (20), the outer surface of the second annular insulating sleeve (5) is provided with a second clamping notch groove (21), and the outer surface of the third annular insulating sleeve (7) is provided with a third clamping notch groove (22).
8. A multi-directionally collectable retardation potential analyzer as claimed in any one of claims 1 to 7, wherein: first annular insulating cover (3) with shell (1) threaded connection is fixed, second annular insulating cover (5) with first annular insulating cover (3) threaded connection is fixed, third annular insulating cover (7) with second annular insulating cover (5) threaded connection is fixed, collector (8) with third annular insulating cover (7) threaded connection is fixed.
9. The multi-directionally collectable retardation potential analyzer of claim 8, wherein: the bottom side of the inner circular surface of the shell (1) is provided with connecting threads, the bottom sides of the outer circular surfaces and the bottom sides of the inner circular surfaces of the first annular insulating sleeve (3), the second annular insulating sleeve (5) and the third annular insulating sleeve (7) are provided with connecting threads, and the bottom side of the outer circular surface of the collector (8) is provided with connecting threads.
10. The multi-directionally collectable retardation potential analyzer of claim 9, wherein: and the upper parts of the first annular insulating sleeve (3), the second annular insulating sleeve (5) and the third annular insulating sleeve (7) are provided with auxiliary mounting grooves, and the auxiliary mounting grooves are used for inserting auxiliary rotating tools so as to rotate to realize threaded connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367483.9A CN113092125B (en) | 2021-04-06 | 2021-04-06 | Retarding potential analyzer capable of collecting in multiple directions |
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| CN202110367483.9A CN113092125B (en) | 2021-04-06 | 2021-04-06 | Retarding potential analyzer capable of collecting in multiple directions |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714831A (en) * | 1986-05-01 | 1987-12-22 | International Business Machines | Spherical retarding grid analyzer |
| JP2006286548A (en) * | 2005-04-04 | 2006-10-19 | Univ Of Tsukuba | Ion current measuring apparatus |
| CN102522308A (en) * | 2009-06-30 | 2012-06-27 | 同方威视技术股份有限公司 | Ion mobility spectrometer and ion collection device thereof |
| CN104483132A (en) * | 2014-10-10 | 2015-04-01 | 北京航空航天大学 | Retarding potential analyzer for ion thruster measurement |
| CN110673195A (en) * | 2019-08-26 | 2020-01-10 | 北京控制工程研究所 | Device and method for measuring transient ion flow field of plasma thruster |
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2021
- 2021-04-06 CN CN202110367483.9A patent/CN113092125B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714831A (en) * | 1986-05-01 | 1987-12-22 | International Business Machines | Spherical retarding grid analyzer |
| JP2006286548A (en) * | 2005-04-04 | 2006-10-19 | Univ Of Tsukuba | Ion current measuring apparatus |
| CN102522308A (en) * | 2009-06-30 | 2012-06-27 | 同方威视技术股份有限公司 | Ion mobility spectrometer and ion collection device thereof |
| CN104483132A (en) * | 2014-10-10 | 2015-04-01 | 北京航空航天大学 | Retarding potential analyzer for ion thruster measurement |
| CN110673195A (en) * | 2019-08-26 | 2020-01-10 | 北京控制工程研究所 | Device and method for measuring transient ion flow field of plasma thruster |
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| Title |
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| 马亚莉 等: "电推力器羽流离子能谱测试仪设计及在轨数据分析", 《真空与低温》 * |
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