CN207163618U - A kind of adjustable torsional pendulum type Micro-thrust test device of precision - Google Patents
A kind of adjustable torsional pendulum type Micro-thrust test device of precision Download PDFInfo
- Publication number
- CN207163618U CN207163618U CN201720374807.0U CN201720374807U CN207163618U CN 207163618 U CN207163618 U CN 207163618U CN 201720374807 U CN201720374807 U CN 201720374807U CN 207163618 U CN207163618 U CN 207163618U
- Authority
- CN
- China
- Prior art keywords
- main body
- swing arm
- pivot
- micro
- test device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of adjustable torsional pendulum type Micro-thrust test device of precision, can test the microthrust of μ N~mN magnitudes, and the device is included in the displacement transducer set gradually on workbench, rocked, counterweight, electromagnetic damper.Provided by the utility model to rock swing arm be extension type, can meet the needs of different follow-on test precision by the regulation to pendulum arm length, and telescopic arm stretch out after the loading tests of different size microthrust devices to be measured can be achieved.Setting rocks bolt positioning hole footpath at top plate and is more than pillar bolt fixing hole footpath, can effectively reduce pivotal mounting eccentric error by finely tuning top plate, improve measuring accuracy.The apparatus structure is simple, small volume, can be positioned over vacuum environment and be tested, and Measurement bandwidth is big, and precision is high.
Description
Technical field
It the utility model is related to Micro-thrust test field, and in particular to a kind of adjustable torsional pendulum type Micro-thrust test dress of precision
Put.
Background technology
For space exploration, the groundworks of scientists, which concentrates on, develops the engine of high thrust to meet power need
Ask.In recent years, with the rapid emergence of MEMS (MEMS) technology, quality 1~100kg levels micro-nano satellite because having
Make the features such as low with launch cost, the cycle is short, stealth is good, mobility is good and emerge rapidly.Microthruster is micro-nano satellite
Gesture stability, track is kept and motor-driven important executive component, it is desirable to produces less thrust and reaches higher precision.It is micro-
Thrust is to embody the important parameter of microthruster technical performance and reliability, so Micro-thrust test becomes microthruster development
Key technology.
Conventional Micro-thrust test platform has a day flat pattern, single pendulum type, suspension type, rocks type etc..Its flat pattern test platform can
So that gravity to be separated with thrust, the influence of gravity is eliminated, and balance is in dynamic balance state, high sensitivity, but the structure
Rate is limited respectively；Single pendulum type test platform can be by the way that wire, target supply lines etc. the structure design such as to be installed in swing arm to
Method reduces influence of these parts to test result, but can not eliminate influence of the gravity to test result, precision nor
It is very high；Suspension type test platform precision is high, small volume, but the disturbance reaction to environment is sensitiveer.At present, domestic and international comparative maturity
Measuring technology be day flat pattern and single pendulum type, but the test request of mN~N magnitudes can only be met.And the type platform of rocking can be realized and pushed away
Power and Gravity Separation, can micrometer thruster quality it is big, precision is high, can meet the test of smaller magnitude microthrust.
Foreign countries start to develop torsional pendulum type test platform at first.2004, new energy portion of Tokyo Univ Japan
H.Koizumi team exists《Journal of Applied Physics–Review of Scientific Instruments》
Delivered in periodical entitled《Development of thrust stand for low impulse measurement from
microthrusters》Paper.One kind is mentioned in text and rocks the momentum test device that declines, the device includes sensor, damping
The structures such as device, flexible axle, I-shaped swing arm, counterweight, suitable for pulsed plasma microthruster and laser ablation microthruster,
It is simple in construction, measuring accuracy 2.1mN.But it is smaller that the device swing arm and centrally-pivoted axle fix contact surface, it is difficult to eliminate swing arm with
The error that the incomplete belt of pivot comes.
The domestic development on rocking type Micro-thrust test device starts from recent years.The Chinese Academy of Sciences disclosed in 2011 is wide
Utility model patent (publication number of the state Energy Research Institute Cen after text et al.：CN102169035A) it is related to a kind of torsional pendulum type high accuracy
Micro-thrust test system, flexible axle lower end is fixed using the paraffin solidification cup of lower section, flexible axle upper end is connected using connecting line
Placed vertically to adjust flexible axle.The device volume is small, easy to use.But for connecting line above the flexible axle of adjustment position
Easily external disturbance is received in test process and introduces test error.Inst. of Mechanics, CAS Li Fei disclosed in 2016
Et al. utility model patent (publication number：CN105784237A) it is related to a kind of Micro-thrust test system and method, work can be passed through
Highly, the pendulum reasoning tested under given loading responds so as to realize stable state on-line proving control machine control lifting platform, applicable 1~
1000mN Micro-thrust test, calibration tape is roomy, precision is high.But two flexible axles up and down fix by placement location in the device, if
Eccentric error be present can not then adjust.PLA Equipment College's leaf disclosed in the same year is special after winged et al. utility model
Sharp (publication number：CN106092399A) it is related to a kind of space flight microthruster momentum testboard based on torsion balance, including test pedestal,
Torsion balance platform, calibration device and the part of displacement of the lines tester four, system load load-bearing is big, and resolution capability is strong, and measuring accuracy is high, test week
Phase is short, can realize the micro- momentum test of kg level space flight microthrusters.But it is interruption that the device, which obtains pendulum arm length conversion, it is impossible to real
Now continuous precision change demand in the range of some.
According to current domestic and international progress, there is problems with the development of torsional pendulum type Micro-thrust test device：
(1) test scope is more in mN~N magnitudes, it is difficult to meets μ N~mN magnitude Micro-thrust tests；
(2) pendulum arm length is fixed mostly, and balance position is fixed, measuring accuracy thus single fixation；
(3) two flexible axles are used mostly, reduces eccentric error during two axle installations without clear and definite method；
(4) it is not up to the horizontal torsional error introduced in width without the issuable swing arm of solution；
(5) test platform be difficult to meet well different quality, thrust magnitude microthruster loading test.
Utility model content
The utility model technical purpose is：Set pendulum arm length can consecutive variations, balance position can adjust continuously, adapt to
Different measuring accuracy demands, issuable rotating shaft eccentric error when amendment is installed, device volume is small, can be positioned over vacuum ring
Border, μ N~mN magnitude Micro-thrust tests are realized, improve measuring accuracy.
Concrete technical scheme of the present utility model is：A kind of adjustable torsional pendulum type Micro-thrust test device of precision, is included in
Displacement transducer, apparatus main body, counterweight, the electromagnetic damper set gradually on workbench,
Apparatus main body is rocks, specially：Swing arm main body, telescopic arm, pivot, flexible axle, pillar, top plate, bottom plate；
Wherein, swing arm main body fixes geo-stationary with pivot, and pivot connects flexible axle simultaneously in both sides respectively by axle sleeve up and down
The center of top plate and bottom plate is positioned at, pillar is located at pivot both sides and is fixed between top plate and bottom plate；Pivot passes through swing arm main body
On pivot fixing hole.
For swing arm main body close to one end of displacement transducer, its inner side is provided with I-shaped telescopic chute, telescopic arm be arranged to and
I-shape construction that the telescopic chute is engaged can simultaneously slide along telescopic chute；
The counterweight that counterweight shifting chute is provided on the other end of swing arm main body to be made to be placed in swing arm main body coordinates telescopic arm to slide
It is dynamic.
Further, the aperture of pivot fixing hole is more than the inboard width of swing arm main body.Preferably.The hole of pivot fixing hole
Footpath is more than swing arm main body inboard width 6mm.
Further, swing arm main body is penetrated admittedly with pivot by being symmetrical with two bolts of swing arm main body horizontal central plane
It is fixed.
Further, it is nesting type structure between swing arm main body and telescopic arm, pendulum arm length excursion is 460~
560mm, 1 screwed hole is respectively provided with the lateral extent pivot center 240mm of telescopic chute two, requires that determination is stretched according to Measurement Resolution
After the distance that contracting arm moves in telescopic chute, telescopic arm is fixed on telescopic chute by the screwed hole respectively at both sides with trip bolt
It is interior, ensure that telescopic arm and swing arm main body are without relative displacement in test process；It is used to fix in addition, telescopic arm front end is provided with screwed hole
Microthrust test system.
Further, it is 40mm with the movable distance that moves is focused in counterweight shifting chute, described counterweight passes through the bottom of at
The nut set and pad is held to be fastened with swing arm main body.
Further, pivot is connected by flexible axle by flexible axle sleeve and flexible axle base with bottom plate respectively.
Further, top plate is fastened provided with flexible axle positioning hole with flexible axle by trip bolt, and top plate is provided with spiral shell
Bolt positioning hole, its aperture are more than pillar bolt fixing hole footpath 4mm, i.e. top plate forms 2mm with pillar in contact plane any direction
Fine setting gap.
The calibration system is according to parallel-axis theorem, and in pivot center both sides, symmetric position places two identical cylindrical metals
Block, swing arm is stirred after certain angle deviates equilbrium position and discharged, by testing swing process data indirect calibration rotary inertia.
Further, flexible axle model RIVERHAWK 5016-800 are used.
Further, used damper is the damping examination from the general magnetoelectricity technological development Co., Ltd customization of Changchun English
Magnetic field sources are tested, are made up of magnetic pole and damping fin.Two cylinder-shaped magnetic poles are made up of the soft iron for being dedicated as electromagnetism ferromagnetic core, diameter
For 10mm.Two magnetic poles are arranged on relative position, therebetween distance about 4mm.Damping fin is formed by the thick copper sheet cuttings of 1mm, is pacified
Mounted in one end of swing arm.Constant-current source model Agilent E3633A used in damper.
Further, used laser displacement sensor model Thinkfocus CD5-30A, mounting distance are
30mm, range are ± 5mm, and precision is 0.46 μm, and sample rate is adjustable, up to 10000Hz.
Compared with prior art, the utility model has advantages below：
(1) Micro-thrust test of μ N~mN magnitudes can be achieved；
(2) swing arm is extension type, can meet the needs of different follow-on test precision by the regulation to pendulum arm length, and
The loading test of different size microthrusters can be achieved in telescopic arm after stretching out；
(3) weights use national standard counterweight specification, and counterweight platform can be corresponded in shifting chute in swing arm end and slided,
It is easy to coordinate the flexible realization device leveling of pendulum arm length；
(4) pivotal mounting eccentric error can be effectively reduced by finely tuning top plate, improves measuring accuracy；
(5) the device pivot and the fixed form of swing arm can ensure level of the swing arm in width；
(6) apparatus structure is simple, small volume, and the vacuum environment that can be positioned over customization is tested.
Brief description of the drawings
Fig. 1 is the overall schematic of the utility model test device.
Fig. 2 is the swing arm main body schematic diagram of the utility model test device.
Fig. 3 is the telescopic arm schematic diagram of the utility model test device.
Fig. 4 is the flexible axle sleeve schematic diagram of the utility model test device.
Fig. 5 is the flexible axle base schematic diagram of the utility model test device.
Fig. 6 is the top plate schematic diagram of the utility model test device.
Fig. 7 is the top plate and pillar fixing means schematic diagram of the utility model test device.
Fig. 8 is the counterweight platform schematic diagram of the utility model test device.
Icon annotates：1-swing arm main body；2-telescopic arm；3-pivot；4-flexible axle；5-pillar；6-top plate；7-bottom plate；8–
Counterweight；9-electromagnetic damper；10-displacement transducer；11-workbench；12-telescopic chute；13-pivot fixing hole；14-counterweight is moved
Dynamic groove；15-microthrust test system fixing screwed hole；16-laser reflection wall fixing screwed hole；17-flexible axle sleeve；18-scratch
Property axle base；19-flexible axle positioning hole；20-pillar positioning hole；21-pad；22-fine setting gap.
Embodiment
The operating procedure combination accompanying drawing tested in itself and using the device below for the device is to the utility model
It is described further：
A kind of adjustable Micro-thrust test device of precision is the utility model is related to, including：Set successively on workbench 11
Displacement transducer 10, apparatus main body, counterweight 8, the electromagnetic damper 9 put,
Apparatus main body is rocks, specially：Swing arm main body 1, telescopic arm 2, pivot 3, flexible axle 4, pillar 5, top plate 6, bottom
Plate 7；
Wherein, swing arm main body 1 fixes geo-stationary with pivot 3, and pivot connects flexible axle in both sides respectively about 3 by axle sleeve
4 and the center of top plate 6 and bottom plate 7 is positioned at, pillar 5 is located at the both sides of pivot 3 and is fixed between top plate 6 and bottom plate 7；
Swing arm main body 1 is provided with I-shaped telescopic chute 12 close to one end of displacement transducer, its inner side, and telescopic arm 2 is set
It can slide for the I-shape construction being engaged with the telescopic chute 12 and along telescopic chute 12；
The counterweight 8 that counterweight shifting chute 14 is provided on the other end of swing arm main body 1 to be made to be placed in swing arm main body 1 coordinates flexible
Arm 2 slides.
The model Thinkfocus CD5-30A of displacement transducer 10 used, range are ± 5mm, and precision is 0.46 μm,
Sample rate is adjustable, up to 10000Hz, installed in apart from reflective wall 30mm, sensor 10 connects computer below swing arm
Software measures swing arm amplitude in real time.Displacement transducer 10 is reflective laser displacement transducer, launches light beam through under swing arm
After square wall reflection inside Returning sensor, the absolute distance for drawing swing arm range sensor is handled through computer；
The electromagnetic damper 9 used is from the damping test magnetic field of the general magnetoelectricity technological development Co., Ltd customization of Changchun English
Source, it is made up of magnetic pole and damping fin.Two cylinder-shaped magnetic poles are made up of the soft iron for being dedicated as electromagnetism ferromagnetic core, a diameter of
10mm.Two magnetic poles are arranged on relative position, therebetween distance about 4mm.Damping fin is formed by the thick copper sheet cuttings of 1mm, is installed
In one end of swing arm.Constant-current source model Agilent E3633A used in damper.End connection is driven during swing arm motion
Damping copper sheet produce resistance with magnetic field relative motion and swing arm is gradually restored to equilbrium position；
Apparatus main body is rocks, by swing arm main body 1, telescopic arm 2, pivot 3, flexible axle 4, pillar 5, top plate 6,7 groups of bottom plate
It is 6061 aluminium alloys into, material therefor, density 2.69g/cm3, surface sand-blasting oxidation, wherein：
Swing arm main body 1 is I-shaped, as shown in Fig. 2 overall length 460mm, wide 40mm, thick 30mm；Swing arm leading inside has length
205mm telescopic chute, the pivot fixing hole 13 for being diameter 32mm at the 300mm of front end, the long 40mm in rear end counterweight platform are moved
Dynamic groove；
Telescopic arm 2 is I-shaped structure, as shown in figure 3, overall length 255mm, wide 32mm, thick 16mm；Front end be long 100mm,
Wide 40mm microthrust test system stationary plane, lower section fixed laser reflective wall；
Pivot 3 is external diameter 32mm, and internal diameter 16mm hollow cylinder, centre is connected to swing arm main body pivot fixed via 13
Place, upper and lower ends fix flexible axle sleeve 17 respectively；
For fix flexible axle 4 and connect pivot 3 and bottom plate 72 flexible axle sleeves and 1 flexible axle base such as Fig. 4,5
It is shown.The flexible bottom plectane of axle sleeve 4 is fixed on 2 faces of pivot 3, and the side that flexible axle is fixed using clip slot is used as flexible axle
Movable end, clip slot is tightened using bolt；Flexible axle base bottom rectangular slab is positioned at bottom plate and corresponds to rectangular groove, uses clip slot
Fixing end of the flexible axle lower end as flexible axle on the downside of fixed pivot axi；
Bottom plate 7 is long 200mm, and wide 120mm, thick 10mm rectangular slab, center is provided with flexible axle locating slot, positions pivot
The center of axle 3；High 172.5mm is fixed in both sides, and basal diameter is 25mm cylinder t shore 5, and top is fixed in the top of pillar 5
Plate；
There are diameter 12.7mm and flexible axle diameter matches flexible axle positioning hole 19 in the center of top plate 6, as shown in fig. 6, scratching
Property axle fixing end is fastened using trip bolt；Top plate 7 has diameter 10mm pillar positioning hole 20, and pillar corresponds to tapped bore and is
6mm, the eccentric error that decentraction is brought above and below rotating shaft in installation process can be reduced by finely tuning top plate, as shown in fig. 7, installing
The top plate of pivot and the relative position of pillar have been connected using fine setting gap adjustment during top plate, has coordinated amesdial controllable
The axle center of pivot 3 processed and the horizontal plane of workbench 11 be in plumbness with reduce by processing, assembling process introducing pivot 3 on,
Lower end eccentric error.Assembling fine setting, concrete operation step are as follows：
(1) before fixed top plate, gently driving pivots, and anomalous rotation resistance is not present in confirmation；
(2) the right angle guiding ruler bottom contact base plate of customization is made, another right angle end leans against on the bus of pivot outer surface vertically, micro-
Pivot is adjusted to make between pivot and guiding ruler without the considerable gap of naked eyes；
(3) guiding ruler is shifted to and surveys direction radially vertical side, repeat step (2) with step (2)；
(4) make under amesdial pointer contact pivot side external surface normal direction a little and return to zero, remove amesdial and make it refer to
On the upside of pin contact pivot with generatrix direction a little and reading, fine setting pivot make amesdial reading level off to zero；
(5) remove amesdial and shift to and survey direction radially vertical side, repeat step (4) with step (4)；
(6) keep pivot and ceiling location constant, top plate and pillar are fixed with bolt and customization pad.
Used weights use national standard counterweight specification, The concrete specification 200g, 100g, 50g, 20g, 10g
(×2)、5g、2g、1g(×2)；Counterweight platform is as shown in figure 8, high 67mm, and bottom surface is diameter 26mm, thick 2mm plectane, in it is straight
Footpath 5mm cylindrical counterweight locating shaft；Counterweight can integrally be corresponded in swing arm end and moved in sliding groove (icon 14), may move away from
From 40mm, itself and swing arm are fastened in lower end using nut shimming.
Tested using the adjustable Micro-thrust test device of a kind of precision involved by the utility model, its concrete operations
Step is as follows：
(1) experimental principle prepares as follows：
Second order mass-spring-damper model can be attributed to by rocking system dynamics model.Kinetics equation is：
Wherein, θ is the corner rocked；J is to rock the rotary inertia to rotary shaft；C is viscous damping coefficient；K is torsion
Stiffness coefficient；lforceDistance for thruster application point apart from spindle central.
As θ≤1,
X=lsensor
Wherein, x is the displacement of displacement sensor；lsensorFor displacement transducer measurement point apart from rotating shaft distance；
Introduce undamped eigentone ω0, Hz；Viscosity μ；Boundary condition, primary condition can obtain：
Wherein, A is to rock peak swing when doing sine swing；I is momentum to be measured.
(2) damper preheating is opened, opens laser displacement sensor, computer control software carries out pre-preparation；
(3) microthruster is arranged on telescopic arm front end loading end, will after adjusting telescopic arm position according to testing requirement
It is fixed on swing arm main body geo-stationary；
(4) make to rock level side according to pendulum arm length and thruster Mass adjust- ment weights quality and counterweight platform position
To balance, l is measured respectivelyforceAnd lsensor；
(5) rotary inertia rocked according to parallel-axis theorem indirect calibration, specific method are as follows：
1. test principle prepares：
According to parallel-axis theorem, if the rotary inertia for the Objects around A mass axis that quality is m is J0When, when shaft parallel moves
During distance x, then rotary inertia of this object to new axis
J1=J0+mx2
In the metal derby for symmetrically placed two regular shape in vertical axes both sides rocked, by the rotary inertia of regular shape object
Theoretical formula can obtain the theoretical rotary inertia J of two metal derbies2Value
Put the theoretical rotary inertia J rocked after two metal derbies1It is worth and is
J1=J0+2J2+2md2
By the cycle for rocking rotation
It is derived by the formula of system rotary inertia
Wherein, T0Hunting period during to be not added with metal derby, T ' are hunting period when adding metal derby, and m is metal derby
Quality, d are the distance of metal derby centre distance rotating shaft center；
2. two cylindrical metal blocks of demarcation are respectively symmetrically positioned over the both ends of vertical rotating shaft, metal derby centre distance
The distance of spindle central is l, a diameter of D of metal derby；
3. open the receipt acquisition software of laser displacement sensor；
Equilbrium position (in flexible axle slewing area) is caused a deviation from 4. swing arm is stirred, turns to certain angle, suddenly
Release, record swing process；
5. the distance for changing metal derby centre distance spindle central is l, repeat step 3.~4.；
6. take the time in preceding 20 cycles of swing process, the cycle T that can be rocked of averaging, according to formula ω=
2 π/T, you can obtain the vibration frequency for the system of rocking；
7. arranging and analyzing experimental data, the rotary inertia rocked under the conditions of this is calculated；
(6) triggering microthruster effect to produce microthrust makes to rock swing, the real-time amplitude data of sensor record；
(7) opening damper makes to rock after the completion of once testing returns to equilbrium position as early as possible；
(8) repeat step (6), (7) are repeatedly tested；
(9) recover to rock to equilbrium position after test terminates, close test apparatus；
(10) data processing is carried out according to the method for step (1), analysis discusses result of the test.
It is described above, it is the embodiment that the utility model has general applicability, not the utility model is made any
Formal limitation, every any simple modification made according to the utility model technical spirit to above-mentioned embodiment, it is equal
Change and modification, still fall within the protection domain of technical solutions of the utility model.
Claims (10)
1. a kind of adjustable torsional pendulum type Micro-thrust test device of precision, including：The displacement set gradually on workbench (11)
Sensor (10), apparatus main body, counterweight (8), electromagnetic damper (9), it is characterised in that：
Apparatus main body is rocks, specially：Swing arm main body (1), telescopic arm (2), pivot (3), flexible axle (4), pillar (5), top
Plate (6), bottom plate (7)；
Wherein, swing arm main body (1) fixes geo-stationary with pivot (3), and pivot (3) connects flexibility in both sides respectively by axle sleeve up and down
Axle (4) and the center for being positioned at top plate (6) and bottom plate (7), pillar (5) are located at pivot (3) both sides and are fixed on top plate (6) and bottom plate
(7) between；
Swing arm main body (1) is provided with I-shaped telescopic chute (12) close to one end of displacement transducer, its inner side, and telescopic arm (2) is set
It is set to the I-shape construction being engaged with the telescopic chute (12) and can be slided along telescopic chute (12)；
The counterweight (8) that counterweight shifting chute (14) is provided on the other end of swing arm main body (1) to be made to be placed in swing arm main body (1) coordinates
Telescopic arm (2) slides.
2. Micro-thrust test device according to claim 1, it is characterised in that：Described pivot (3) passes through swing arm main body
(1) the pivot fixing hole (13) on.
3. Micro-thrust test device according to claim 1 or 2, it is characterised in that：Described pivot fixing hole (13)
Aperture is more than the inboard width of swing arm main body (1).
4. Micro-thrust test device according to claim 3, it is characterised in that：The aperture of described pivot fixing hole (13)
More than swing arm main body (1) inboard width 6mm.
5. Micro-thrust test device according to claim 1, it is characterised in that：Described swing arm main body (1) and pivot (3)
Fixation is penetrated by two bolts for being symmetrical with swing arm main body (1) horizontal central plane.
6. Micro-thrust test device according to claim 1, it is characterised in that：Described swing arm main body (1) and telescopic arm
(2) it is nesting type structure between, pendulum arm length excursion is 460~560mm, in the lateral extent pivot (3) of telescopic chute (12) two
1 screwed hole is respectively provided with the 240mm of center, is required to determine that telescopic arm (2) moves in telescopic chute (12) according to Measurement Resolution
Distance after, telescopic arm (2) is fixed in telescopic chute (12) by the screwed hole respectively at both sides with trip bolt, and guarantee was tested
Telescopic arm (2) and swing arm main body (1) are without relative displacement in journey；It is used to fix micro- push away in addition, telescopic arm (2) front end is provided with screwed hole
Power test system.
7. Micro-thrust test device according to claim 1, it is characterised in that：Described counterweight (8) is in counterweight shifting chute
(14) movable distance moved in is 40mm, and described counterweight (8) passes through the nut and pad (21) and pendulum that are set in bottom
Arm main body (1) fastens.
8. Micro-thrust test device according to claim 1, it is characterised in that：Described flexible axle (4) is respectively by scratching
Pivot (3) is connected by property axle sleeve (17) and flexible axle base (18) with bottom plate (7).
9. Micro-thrust test device according to claim 1, it is characterised in that top plate (6) is provided with flexible axle positioning hole
(19) fastened with flexible axle (4) by trip bolt, top plate (6) is provided with bolt positioning hole (20), and its aperture is more than pillar spiral shell
Bolt constant aperture 4mm, i.e. top plate (6) form 2mm fine setting gap (22) with pillar (5) in contact plane any direction.
10. Micro-thrust test device according to claim 1, it is characterised in that described electromagnetic damper (9) is
Agilent E3633A；Described displacement transducer (10) is reflective laser displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374807.0U CN207163618U (en) | 2017-04-11 | 2017-04-11 | A kind of adjustable torsional pendulum type Micro-thrust test device of precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720374807.0U CN207163618U (en) | 2017-04-11 | 2017-04-11 | A kind of adjustable torsional pendulum type Micro-thrust test device of precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163618U true CN207163618U (en) | 2018-03-30 |
Family
ID=61709818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720374807.0U Active CN207163618U (en) | 2017-04-11 | 2017-04-11 | A kind of adjustable torsional pendulum type Micro-thrust test device of precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163618U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895936A (en) * | 2017-04-11 | 2017-06-27 | 南京理工大学 | A kind of adjustable torsional pendulum type Micro-thrust test device of precision |
| CN108680303A (en) * | 2018-07-06 | 2018-10-19 | 中国人民解放军战略支援部队航天工程大学 | For rocking the system response error computational methods of dynamometry, rocking dynamometric system |
| CN109827704A (en) * | 2019-02-28 | 2019-05-31 | 西北工业大学 | Minute yardstick pinking thrust-measuring device based on the method for dangling |
-
2017
- 2017-04-11 CN CN201720374807.0U patent/CN207163618U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895936A (en) * | 2017-04-11 | 2017-06-27 | 南京理工大学 | A kind of adjustable torsional pendulum type Micro-thrust test device of precision |
| CN108680303A (en) * | 2018-07-06 | 2018-10-19 | 中国人民解放军战略支援部队航天工程大学 | For rocking the system response error computational methods of dynamometry, rocking dynamometric system |
| CN108680303B (en) * | 2018-07-06 | 2019-07-30 | 中国人民解放军战略支援部队航天工程大学 | For rocking the system response error calculation method of dynamometry, rocking dynamometric system |
| CN109827704A (en) * | 2019-02-28 | 2019-05-31 | 西北工业大学 | Minute yardstick pinking thrust-measuring device based on the method for dangling |
| CN109827704B (en) * | 2019-02-28 | 2020-08-25 | 西北工业大学 | Microscale detonation thrust measuring device based on suspension oscillation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106895936A (en) | A kind of adjustable torsional pendulum type Micro-thrust test device of precision | |
| CN207163618U (en) | A kind of adjustable torsional pendulum type Micro-thrust test device of precision | |
| CN102393213B (en) | Space-based detecting and tracking imaging system testing device and testing method | |
| CN107607292B (en) | A kind of high speed joining WTO effect experimental rig | |
| CN106092399B (en) | Spaceflight micro thruster impulse measuring table based on torsion balance | |
| CN102980492B (en) | Sphericity measuring device for large-size air floating ball of triaxial air floating platform and measuring method thereof | |
| CN102564684B (en) | Method for multi-dimensional sensor dynamic test device based on stable-state sine excitation force | |
| CN206583978U (en) | A kind of antenna measurement pitching platform | |
| CN100487752C (en) | Coriolis force experimental equipment | |
| CN113701934B (en) | Torsional pendulum type micro-thrust measuring device and method | |
| CN113740929B (en) | Ground testing device and method for space inertial sensor | |
| CN104197955A (en) | Full-automatic triaxial air bearing table micro-interference force moment measurement system and method | |
| CN112504534A (en) | Vertical pendulum type micro thrust test board device, calibration method and weak force test method | |
| Zhang et al. | High precision micro-impulse measurements for micro-thrusters based on torsional pendulum and sympathetic resonance techniques | |
| CN204881972U (en) | Three -dimensional small power generating device of high accuracy non -contact | |
| CN110001328B (en) | Spacecraft simulation device | |
| CN110579334B (en) | Mechanical type multipurpose ship model restoring force measuring device and method | |
| CN106383002A (en) | Low thrust high-precision electromagnetic actuator output force test system and method | |
| JPH11132836A (en) | Weight measuring apparatus provided with rock correction device | |
| CN115248120A (en) | Micro-thrust measuring device and method | |
| CN201094018Y (en) | Flatness testing apparatus | |
| CN202329647U (en) | Test device of space-based detection and tracking imaging system | |
| CN204064239U (en) | A kind of worktable for fixing magnetic conductivity workpiece and optics meter thereof | |
| CN110967144A (en) | Magnetic torquer calibration device | |
| Verbin et al. | Detail Design of a Pulsed Plasma Thrust Stand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |