CN111735599A - Measuring tool fixing device - Google Patents

Measuring tool fixing device Download PDF

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Publication number
CN111735599A
CN111735599A CN202010625616.3A CN202010625616A CN111735599A CN 111735599 A CN111735599 A CN 111735599A CN 202010625616 A CN202010625616 A CN 202010625616A CN 111735599 A CN111735599 A CN 111735599A
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China
Prior art keywords
fixing
measuring tool
wire
top cover
clamping
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Granted
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CN202010625616.3A
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Chinese (zh)
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CN111735599B (en
Inventor
贺碧蛟
张欢迎
杨祖仪
蔡国飙
翁惠焱
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Beihang University
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Beihang University
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Publication of CN111735599A publication Critical patent/CN111735599A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels

Abstract

The invention provides a measuring tool fixing device, which relates to the technical field of measuring tools of electric thrusters and comprises the following components: a clamping member and a fixing body; because the middle part of the fixed main body is communicated to form a wire channel, the connecting wire of the measuring tool clamped by the clamping component penetrates through the clamping component and extends into the wire channel in the fixed main body, so that the connecting wire of the measuring tool is buried in the fixed main body, the bombardment of the connecting wire of the measuring tool by the thruster is effectively reduced, the technical problem that in the prior art, the thruster bombards the cabin component of the contact diagnosis measuring system, the wire of the probe clamped by the clamp system is damaged, the service life of the wire is greatly reduced, and economic loss is caused is solved, the technical problem that the service life of the wire is prolonged and the cost is reduced is realized.

Description

Measuring tool fixing device
Technical Field
The invention relates to the technical field of measuring tools of electric thrusters, in particular to a fixing device of a measuring tool.
Background
The electric thruster is widely applied to attitude and orbit control of the spacecraft due to the advantages of high specific impulse, long service life, small system mass and the like. 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 is plasma and mainly comprises ions, electrons, neutral gas molecules and the like, the obtained beam current density distribution in the plume is an important index for evaluating the service life of the electric thruster and the plume effect of the electric thruster, and parameters such as beam current density, electron temperature, ion energy, beam divergence angle and the like of space plume measurement are very important for evaluating the performance of the electric thruster.
The measurement space plume parameters are generally measured by using a contact type diagnostic measurement system, which is composed of a probe system, a clamp system, a three-dimensional moving mechanism, a wire system, a measurement system, a data processing system and the like from the signal upstream.
However, in the fixture system, the probe is clamped by using the fixture, and since the thruster bombards the components in the cabin of the contact type diagnostic measurement system, the lead connected with the probe is often damaged, the service life of the lead is greatly reduced, and economic loss is caused.
Disclosure of Invention
The invention aims to provide a measuring tool fixing device to solve the technical problems that in the prior art, due to the fact that a thruster bombards an in-cabin component of a contact type diagnosis and measurement system, a lead of a probe clamped by a clamp system is damaged, the service life of the lead is greatly shortened, and economic loss is caused.
In a first aspect, the present invention provides a measuring tool holding device comprising: a clamping member and a fixing body;
the clamping component is installed on the fixed main body, a wire channel is formed in the middle of the fixed main body in a penetrating mode, a wire inlet hole is formed in the clamping component and communicated with the wire channel, the clamping component is configured to be capable of clamping a measuring tool, and a connecting wire of the measuring tool penetrates through the wire inlet hole and extends into the wire channel.
In an alternative embodiment, the fixing body comprises a fixing member and a threading tube;
the clamping member is connected with the fixing member, the fixing member is provided with a fixing hole, the threading pipe penetrates through the fixing hole and extends into the fixing member, and the fixing member and the threading pipe are surrounded to form the wire channel.
In an alternative embodiment, the measuring tool holding device further comprises a height limiting assembly;
the height limiting assembly is connected with the threading pipe, and the height limiting assembly is configured to be capable of adjusting the length of the threading pipe extending into the fixing component.
In an alternative embodiment, the height limiting assembly comprises a first limiting member and a second limiting member;
the first limiting part is arranged in the fixed component, the first limiting part is in threaded connection with the threading pipe extending into the fixed component, and the first limiting part is abutted against the inner side of the fixed component;
the second limiting part is in threaded connection with the threading pipe extending out of the fixing member, and the second limiting part is abutted against the outer side of the fixing member.
In an alternative embodiment, an outlet is provided on the threading tube, and the connecting wire in the threading tube can pass through the outlet.
In an alternative embodiment, the measuring tool holding device further comprises a wire running plate;
the threading pipe is provided with an opening, and the wiring board cover is arranged at the opening.
In an alternative embodiment, the securing member comprises a top cover tray and a base tray;
the top cap dish lid with on the base dish, just the top cap dish with the base dish encloses and establishes into the anchor clamps standing groove, the clamping member set up in the anchor clamps standing groove.
In an alternative embodiment, the top cover disc is provided with abutment supports in the circumferential direction;
one end of the abutting support piece, which is far away from the top cover disc, abuts against the base disc;
the butt support piece has domatic, the top cap dish has the planishing face, domatic with the contained angle has between the planishing face.
In an alternative embodiment, the abutment support is provided in a plurality which are arranged at regular intervals along the circumferential direction of the top cover disk.
In an alternative embodiment, the cross-sectional shape of the roof tray is a regular hexagon.
The invention provides a measuring tool fixing device, which comprises: a clamping member and a fixing body; the clamping member is installed on the fixed main body, the middle of the fixed main body is communicated with a wire channel, a wire inlet hole is formed in the clamping member and communicated with the wire channel, the clamping member is configured to be capable of clamping a measuring tool, and a connecting wire of the measuring tool penetrates through the wire inlet hole to stretch into the wire channel. Because the middle part of the fixed main body is communicated to form a wire channel, the connecting wire of the measuring tool clamped by the clamping component penetrates through the clamping component and extends into the wire channel in the fixed main body, so that the connecting wire of the measuring tool is buried in the fixed main body, the bombardment of the connecting wire of the measuring tool by the thruster is effectively reduced, the technical problem that in the prior art, the thruster bombards the cabin component of the contact diagnosis measuring system, the wire of the probe clamped by the clamp system is damaged, the service life of the wire is greatly reduced, and economic loss is caused is solved, the technical problem that the service life of the wire is prolonged and the cost is reduced is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of a measuring tool fixing device according to an embodiment of the present invention;
FIG. 2 is an exploded view of a measurement tool fixture according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a top cover plate in a measuring tool fixing device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base plate in a measuring tool fixing device according to an embodiment of the present invention.
Icon: 100-a clamping member; 200-a stationary body; 210-a stationary member; 211-a top cover tray; 212-a base plate; 213-an abutment support; 220-a threading tube; 221-outlet; 222-a wiring board; 300-a height-limiting component; 310-a first limiting member; 320-a second stop.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
As shown in fig. 1, the present embodiment provides a measuring tool fixing device, including: a clamping member 100 and a fixing body 200; the clamping member 100 is installed on the fixing body 200, a wire channel is formed in the middle of the fixing body 200 in a penetrating mode, a wire inlet hole is formed in the clamping member 100 and communicated with the wire channel, the clamping member 100 is configured to be capable of clamping a measuring tool, and a connecting wire of the measuring tool penetrates through the wire inlet hole and extends into the wire channel.
Specifically, clamping member 100 fixed mounting is on fixed main part 200, fixed main part 200 is hollow structure, form the direction passageway in the inside of fixed main part 200, the last entrance hole that is provided with of clamping member 100, clamping member 100 can carry out the centre gripping to measuring tool and fix, measuring tool's connecting wire passes the entrance hole on clamping member 100 and stretches into in the wire passageway of fixed main part 200, make measuring tool's connecting wire bury underground in fixed main part 200, it receives the bombardment of thrustor to reduce measuring tool's connecting wire, and then the life of extension connecting wire.
The embodiment provides a measuring tool fixing device, includes: a clamping member 100 and a fixing body 200; the clamping member 100 is installed on the fixing body 200, a wire channel is formed in the middle of the fixing body 200 in a penetrating mode, a wire inlet hole is formed in the clamping member 100 and communicated with the wire channel, the clamping member 100 is configured to be capable of clamping a measuring tool, and a connecting wire of the measuring tool penetrates through the wire inlet hole and extends into the wire channel. Because the middle part of the fixing main body 200 is communicated to form a wire channel, the connecting wire of the measuring tool clamped by the clamping member 100 passes through the clamping member 100 and extends into the wire channel in the fixing main body 200, so that the connecting wire of the measuring tool is embedded in the fixing main body 200, the bombardment of the connecting wire of the measuring tool by the thruster is effectively reduced, the technical problem that in the prior art, the thruster bombards the cabin components of the contact diagnosis and measurement system, the wire of the probe clamped by the clamp system can be damaged, the service life of the wire is greatly reduced, economic loss is caused is solved, the service life of the wire is prolonged, and the technical effects of reducing cost and the like are achieved.
On the basis of the above embodiment, as shown in fig. 2, in an alternative embodiment, the fixing body 200 in the measuring tool fixing device provided in the present embodiment includes a fixing member 210 and a threading tube 220; the clamping member 100 is connected with a fixing member 210, the fixing member 210 is provided with a fixing hole, a threading pipe 220 penetrates through the fixing hole and extends into the fixing member 210, and the fixing member 210 and the threading pipe 220 are surrounded to form a wire channel.
Specifically, the clamping member 100 is mounted on the fixing member 210, a cavity is formed inside the fixing member 210, a fixing hole is formed in the middle of the fixing member 210, the threading tube 220 penetrates through the fixing hole and extends into the cavity of the fixing member 210, the cavity of the fixing member 210 and the threading tube 220 form a wire channel, a connecting wire of a measuring tool sequentially penetrates through a wire inlet hole in the clamping member 100 and the cavity of the fixing member 210 and extends into the threading tube 220, and the connecting wire of the measuring tool is embedded in the fixing member 210 and the threading tube 220.
In addition, the threading tube 220 is disposed below the fixing member 210, and the threading tube 220 can effectively support the fixing member 210, and the height position of the fixing member 210 can be changed by changing the length of the threading tube 220.
In an alternative embodiment, the measuring tool fixture further comprises a height limiting assembly 300; the height limiting assembly 300 is connected to the threading tube 220, and the height limiting assembly 300 is configured to adjust the length of the threading tube 220 extending into the fixing member 210.
Specifically, the height limiting assembly 300 is disposed on the threading tube 220, and the height limiting assembly 300 can fix the position of the threading tube 220, so as to change the length of the threading tube 220 extending into the cavity of the fixing member 210, and adjust the height of the fixing member 210.
In an alternative embodiment, the height limiting assembly 300 includes a first limiting member 310 and a second limiting member 320; the first limiting element 310 is disposed in the fixing member 210, the first limiting element 310 is in threaded connection with the threading tube 220 extending into the fixing member 210, and the first limiting element 310 abuts against the inner side of the fixing member 210; the second limiting member 320 is in threaded connection with the threading tube 220 extending out of the fixing member 210, and the second limiting member 320 abuts against the outer side of the fixing member 210.
Specifically, the first limiting element 310 and the second limiting element 320 are specifically configured as nuts, the first limiting element 310 and the second limiting element 320 are disposed at intervals along the length direction of the threading tube 220, the first limiting element 310 is located in a cavity of the fixing member 210, the second limiting element 320 is disposed outside the fixing member 210, the first limiting element 310 is screwed on the threading tube 220 extending into the fixing member 210, the second limiting element 320 is disposed outside the fixing member 210, when the threading tube 220 extends into the fixing member 210 and the position of the threading tube 220 is determined, the first limiting element 310 is screwed on the threading tube 220 extending into the fixing member 210, the first limiting element 310 is tightly attached to the inner surface of the fixing member 210, the second limiting element 320 is screwed on one end of the threading tube 220 extending out of the fixing member 210, and the second limiting element is tightly attached to the outer surface of the fixing member 210, and the first limiting element and the second limiting element are respectively tightly attached to the inner surface and the outer surface of the fixing member 210, to fix the fixing member 210 to the threading pipe 220.
In the fixing device for a measuring tool provided in this embodiment, the first limiting member 310 and the second limiting member 320 are disposed on the threading tube 220 at an interval, the fixing member 210 is fixed between the first limiting member 310 and the second limiting member 320 by the first limiting member 310 and the second limiting member 320, the fixing member 210 is fixed on the threading tube 220, and the specific position of the fixing member 210 on the threading tube 220 can be adjusted.
On the basis of the above embodiment, in an optional implementation manner, the threading tube 220 in the measuring tool fixing device provided in this embodiment is provided with an outlet 221, and the connecting wire in the threading tube 220 can pass through the outlet 221.
Specifically, an outlet 221 is provided on the threading tube 220, and a connecting wire of the measuring tool can sequentially pass through the wire inlet hole of the clamping member 100, the cavity of the fixing member 210 and the threading tube 220 and pass out of the outlet 221, so that the connecting wire of the measuring tool is electrically connected with an external power supply.
In an alternative embodiment, the measuring tool fixture further comprises a wire-routing plate 222; the threading tube 220 is provided with an opening, and the routing plate 222 covers the opening.
Specifically, set up the opening on threading pipe 220, utilize to walk line board 222 lid and at the opening part, plug up the opening, when the artifical connecting wire to measuring tool of needs overhauls the adjustment, can follow the opening part with walking line board 222 and take off, make measuring tool's connecting wire large tracts of land expose, make things convenient for relevant staff to overhaul, overhaul the back, will walk line board 222 lid and at the opening part.
In addition, a through hole may be formed in the trace board 222, so that the connecting wire can pass through the trace board 222.
According to the fixing device for the measuring tool provided by the embodiment, the wire outlet 221 is formed in the wire passing pipe, so that a connecting wire in the wire passing pipe 220 can conveniently penetrate out of the wire outlet 221; through will walk the opening of line board 222 lid and on threading pipe 220, the staff of being convenient for will walk line board 222 and take off, overhaul the connecting wire in threading pipe 220.
On the basis of the above embodiments, as shown in fig. 3 and 4, in an alternative embodiment, the present embodiment provides a measuring tool fixing device in which the fixing member 210 includes a top cover plate 211 and a base plate 212; the top cover tray 211 covers and seats on the base tray 212, and the top cover tray 211 and the base tray 212 enclose into a jig placement groove in which the clamping member 100 is disposed.
Specifically, the top cover plate 211 covers the base plate 212, a cavity is formed between the top cover plate 211 and the base plate 212, the connecting wires of the measuring tool extend into the space between the top cover plate 211 and the base plate 212 through the wire inlet holes on the clamping members 100, the base plate 212 is provided with a placing groove, and the clamping members 100 are fixed in the placing groove.
In an alternative embodiment, the top cover disk 211 is provided with abutment supports 213 in the circumferential direction; the end of the abutment support 213 remote from the top cover disk 211 abuts the base disk 212; the abutment support 213 has a sloping surface, the top cover disk 211 has a flat surface, and an angle is formed between the sloping surface and the flat surface.
Specifically, top cap dish 211's circumferential direction is provided with butt support piece 213, butt support piece 213 and top cap dish 211 are integrated into one piece, top cap dish 211 passes through butt support piece 213 lid and on base disc 212, and butt support piece 213 inclines to the direction that is close to base disc 212, the domatic of butt support piece 213 has the contained angle between the plannar of top cap dish 211 and the domatic of butt support piece 213, the domatic of butt support piece 213 constitutes streamlined cross-section with top cap dish 211's plannar, make top cap dish 211 and butt support piece 213 receive the flow field interference of thrustor to diminish, reduce measuring error, and then improve measuring tool's measurement accuracy.
In an alternative embodiment, the abutment support 213 is provided in plurality, and the plurality of abutment supports 213 are provided at regular intervals along the circumferential direction of the top cover tray 211.
Specifically, a plurality of butt support pieces 213 are arranged along the circumferential direction of the top cover disc 211, the plurality of butt support pieces 213 are arranged at even intervals, and the arrangement of the plurality of butt support pieces 213 is streamlined, so that the flow field interference of the thruster is greatly reduced, the system error is reduced, and the measurement accuracy of the measurement tool is improved.
In an alternative embodiment, the cross-sectional shape of the top cover disk 211 is a regular hexagon.
Specifically, the cross-sectional shape of the top cover plate 211 is regular hexagon, and the hexagonal top cover plate 211 can fix six clamping members 100, so that the type and the number of the contact type diagnostic tools which can be used for opening and closing the cabin at one time are maximized; and the thruster can only bombard one contact type diagnostic tool at a time, so that the service life of the contact type diagnostic tool is prolonged, the experiment cost is effectively reduced, and the system reliability is improved.
According to the measuring tool fixing device provided by the embodiment, the abutting support piece 213 is arranged in the circumferential direction of the top cover disc 211, and the top cover disc 211 and the abutting support piece 213 form a streamline end face, so that the flow field interference of the thruster is effectively reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A measurement tool holding apparatus, comprising: a clamping member (100) and a fixing body (200);
the clamping component (100) is installed on the fixing main body (200), a wire channel is formed in the middle of the fixing main body (200) in a penetrating mode, a wire inlet hole is formed in the clamping component (100), the wire inlet hole is communicated with the wire channel, the clamping component (100) is configured to be capable of clamping a measuring tool, and a connecting wire of the measuring tool penetrates through the wire inlet hole and extends into the wire channel.
2. The measuring tool fixing device according to claim 1, wherein the fixing body (200) comprises a fixing member (210) and a threading tube (220);
the clamping component (100) is connected with the fixing component (210), the fixing component (210) is provided with a fixing hole, the threading pipe (220) penetrates through the fixing hole and extends into the fixing component (210), and the fixing component (210) and the threading pipe (220) are surrounded to form the wire channel.
3. The measurement tool fixture according to claim 2, further comprising a height limiting assembly (300);
the height limiting assembly (300) is connected with the threading pipe (220), and the height limiting assembly (300) is configured to be capable of adjusting the length of the threading pipe (220) extending into the fixing component (210).
4. The measuring tool fixture according to claim 3, wherein the height limiting assembly (300) comprises a first stop (310) and a second stop (320);
the first limiting part (310) is arranged in the fixing member (210), the first limiting part (310) is in threaded connection with the threading pipe (220) extending into the fixing member (210), and the first limiting part (310) is abutted against the inner side of the fixing member (210);
the second limiting part (320) is in threaded connection with the threading pipe (220) extending out of the fixing member (210), and the second limiting part (320) is abutted against the outer side of the fixing member (210).
5. The measuring tool fixing device according to claim 2, wherein an outlet (221) is arranged on the threading pipe (220), and a connecting wire in the threading pipe (220) can pass through the outlet (221).
6. The measurement tool fixture according to claim 2, further comprising a wire-walking plate (222);
an opening is formed in the threading pipe (220), and the threading plate (222) covers the opening.
7. The measurement tool fixture according to claim 2, wherein the fixture member (210) comprises a top cover disk (211) and a base disk (212);
the top cover plate (211) covers the base plate (212), the top cover plate (211) and the base plate (212) are enclosed into a clamp placing groove, and the clamping member (100) is arranged in the clamp placing groove.
8. Measuring tool holding device according to claim 7, characterized in that the circumferential direction of the top cover disc (211) is provided with an abutment support (213);
the end of the abutting support (213) far away from the top cover disc (211) abuts against the base disc (212);
the butt support piece (213) is provided with a slope surface, the top cover disc (211) is provided with a flat surface, and an included angle is formed between the slope surface and the flat surface.
9. The measuring tool holding device according to claim 8, wherein the abutment support (213) is provided in plurality, and the plurality of abutment supports (213) are provided at regular intervals along a circumferential direction of the top cover disk (211).
10. The measuring tool holding device according to claim 7, wherein the cross-sectional shape of the top cover disk (211) is a regular hexagon.
CN202010625616.3A 2020-06-30 2020-06-30 Measuring tool fixing device Active CN111735599B (en)

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CN205863808U (en) * 2016-08-03 2017-01-04 重庆幻速汽车配件有限公司 Cable fixer
CN108882492A (en) * 2018-07-25 2018-11-23 北京航空航天大学 Novel Mach probe
CN110557877A (en) * 2019-09-11 2019-12-10 北京航空航天大学 Langmuir probe, Langmuir probe detection system and Langmuir probe detection method
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