CN207964162U - The caliberating device of system electromagnetism dynamometer is tested suitable for microthruster - Google Patents
The caliberating device of system electromagnetism dynamometer is tested suitable for microthruster Download PDFInfo
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- CN207964162U CN207964162U CN201721883495.2U CN201721883495U CN207964162U CN 207964162 U CN207964162 U CN 207964162U CN 201721883495 U CN201721883495 U CN 201721883495U CN 207964162 U CN207964162 U CN 207964162U
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Abstract
The utility model provides a kind of caliberating device suitable for microthruster test system electromagnetism dynamometer, including holder, two-dimensional adjustment device, electromagnetism dynamometer, transmission rod, suspension, weight, non-magnetic objective table and electronic analytical balance；When current stabilization circuit provides operating current for electromagnetism dynamometer, the electromagnetic torque that electromagnetism dynamometer generates makes transmission rod generate the pulling force in a Z-direction to suspension；Electromagnetism dynamometer, transmission rod, suspension and weight form a leverage；Electronic analytical balance is measuring the pulling force that weight is subject to；The caliberating device uses Ampere's law and principle of moment balance, convert the micro-electromagnetic force that electromagnetism dynamometer generates to the pulling force to weight, the registration changing value of weight is shown with electronic analytical balance again, calculate the pulling force that weight is subject to, to obtain electromagnetic torque to be measured, the operation of entire calibration process controls and uses simplicity, is easy to grasp.
Description
Technical field
The utility model belongs to the field of measuring technique of power, and especially a kind of microthruster test system electromagnetism that is suitable for is surveyed
The caliberating device of power device.
Background technology
With the progress and development of science and technology, grapefruit satellite is being received more and more attention and is being applied.It is same with this
When, it is adjusted for the attitude of satellite and the thruster of track adjusting will be also adapted therewith.Microthruster test system is used for measuring
The thrust of specific impulse, the thrust is usually between μ N and mN.In the development and verification process of test system, it is desirable to be able to
Simulate the dynamometer of micro thrust.Therefore, it is necessary to develop a kind of suitable for microthruster test system electromagnetism dynamometer
Caliberating device.
Utility model content
The purpose of this utility model is to provide a kind of calibration dresses for testing system electromagnetism dynamometer suitable for microthruster
It sets.
In order to achieve the above object, technical solutions of the utility model are as follows：
A kind of caliberating device suitable for microthruster test system electromagnetism dynamometer, including holder, two-dimensional adjustment device, electricity
Magnetic dynamometer, transmission rod, suspension, weight, non-magnetic objective table and electronic analytical balance；Wherein, the electromagnetism dynamometer is external
Current stabilization circuit, current stabilization circuit provide operating current for electromagnetism dynamometer；Bracket base is placed on the pedestal of electronic analytical balance；Branch
Frame is made of left and right supporting rod, horizontal support bar and fixed link, and fixed link is used for connecting bracket and two-dimensional adjustment device, fixed link
It is mutually perpendicular to horizontal support bar；Manual horizontal position moving stage, the bottom of manual horizontal position moving stage are configured on the left and right pedestal of holder
Seat shifter knob is for making two-dimensional adjustment device move in the Y direction；It is fixed in the two-dimensional adjustment device fixed link of two-dimensional adjustment device
Electromagnetism dynamometer, two-dimensional adjustment device X-direction displacement knob and Z-direction displacement knob are respectively used to make electromagnetism dynamometer in X and the side Z
It moves up；Aperture on transmission rod one end is fixedly connected with one end of suspension, and the transmission rod other end is fixed on electromagnetism dynamometer
Shaft front half section on and be configured with counterweight, when transmission rod rotates around the axis, the center of gravity of rotating part is fallen in shaft；Electricity
The tuningout knob of magnetic dynamometer is also secured in shaft front half section, so that it is driven shaft rotation by rotating tuningout knob, to
So that tuningout operation is completed in transmission rod rotation；One end that suspension is not connect with transmission rod is fixedly connected weight；Weight is shelved on
On non-magnetic objective table, and it is placed on together on electronic analytical balance pallet with non-magnetic objective table；Pass through rotary manual level
The displacement knob of displacement platform and two-dimensional adjustment device so that electromagnetism dynamometer is vacantly placed in position right over electronic analytical balance pallet
It sets, transmission rod is in XOZ rotation in surface；Rotate tuningout knob so that the position relationship of transmission rod, suspension and weight is as follows：It passes
Power bar is directed toward X-direction, and transmission rod, suspension and weight three are in XOZ planes, and suspension and transmission rod are mutually perpendicular to；Electromagnetism is surveyed
When the coil of power device passes through constant current, the electromagnetic torque of generation is equal to " the variation gravitational moment " of weight, wherein electromagnetic torque is
Coil in uniform magnetic field passes through the electromagnetic force F generated when electric current1With the width L of coil1Product；" the variation weight of weight
Torque " is turning for the small pitch electromagnetism dynamometer of the registration changing value Δ M of electronic analytical balance, gravity acceleration g and transmission rod
The distance L of axis2The product of three；The selection principle of the weight is：The gravitational moment mgL of weight2It is produced not less than electromagnetism dynamometer
Raw electromagnetic torque F1·L1So that transmission rod is X-direction in the direction of entire dynamometry process, and wherein m attaches most importance to amount of substance, and g is
Acceleration of gravity.
It is preferred that the structure of the electromagnetism dynamometer is internal magnetization structure or external magnetic type structure；Internal magnetization structure
Refer to that permanent cylinder-shaped magnet is located in square coil, magnetic guiding loop is cased with outside square coil；External magnetic type structure refers to that magnet is located at
Outside square coil, square coil is located between two pole palms, and cylinder-shaped iron core is located in square coil.
It is preferred that the structure of the internal magnet type electromagnetic dynamometer includes fixed magnetic circuit system and moving part；
Magnetic circuit system includes：The cylinder-shaped magnet that is fixed on the holder of electromagnetism dynamometer and encircle around cylinder-shaped magnet with circle
The concentric magnetic guiding loop of cylindrical magnetic iron, the line of magnetic induction of cylinder-shaped magnet is along the diametric(al) of disc, and magnetic guiding loop and cylinder
Air-gap between shape magnet is equal everywhere, and the magnetic field of homogeneous radiation is formed in air-gap；Cylinder-shaped magnet and magnetic guiding loop are solid
It is scheduled on dynamometer holder；Moving part includes：Both sides are located at the movable square coil in air-gap, above and below square coil
The shaft front half section being fixedly connected and second half section, the bearing to match with shaft and twine at shaft front half section respectively on the second half section
It is wound with balance spring, inner end and the shaft of balance spring are fixed, and are fixed on tuningout knob positioned at the balance spring outer end of shaft front half section, are located at and are turned
The balance spring outer end of axis second half section is fixed on bearing, and the balance spring of shaft front half section and second half section spiral direction on the contrary, shaft
Both ends are tip-like pivots, and pivot is supported in the groove of bearing.
It is preferred that the structure of the external magnetic type electromagnetism dynamometer includes moving part and fixed magnetic circuit system；
Magnetic circuit system includes permanent magnet, yoke, the pole palm and cylinder-shaped iron core；Two fan-shaped poles are slapped along cylindrical core disc
Diameter symmetry is distributed and the two is concentric, and cylinder-shaped iron core is fixed on external magnetic type electromagnetism dynamometer holder, for reducing magnetic resistance, and
Pole is set to slap in the air-gap between iron core the magnetic field for generating homogeneous radiation；Diameter pair of two yokes on cylindrical core disc
Distribution, permanent magnet and the pole palm is claimed to be clipped between two yokes up and down, yoke plays poly- magnetic in magnetic circuit system and passes magnetic；It can
Dynamic part includes：Both sides are located at the movable square coil in air-gap, before the shaft that square coil is fixedly connected up and down
Half section and second half section, the bearing to match with shaft and are wound with balance spring at shaft front half section respectively on the second half section, the inner end of balance spring
It fixes with shaft, is fixed on tuningout knob positioned at the balance spring outer end of shaft front half section, be located at the balance spring outer end of shaft second half section
It is fixed on bearing, and the balance spring of shaft front half section and second half section spiral direction on the contrary, the both ends of shaft are tip-like pivots, axis
Point is supported in the groove of bearing.
It is preferred that the suspension selects the filament that diameter is not more than 0.2mm.The suspension select elongation strain compared with
When small filament, i.e. transmission rod apply the power in Z-direction by filament to weight, the deformation very little that filament occurs, almost without
It deforms upon.
It is preferred that the flat wind spring that the balance spring selects elasticity modulus smaller, i.e. balance spring moving coil around the shaft
The moment of reaction very little generated when rotation, in the case where not considering the moment of reaction of balance spring, the moving coil of energization will
It is always maintained at and rotates around the axis；Balance spring is rigidly fixed in shaft and holder.
The measuring principle of the utility model is as follows：
Electromagnetism dynamometer is support by holder, utilizes manual horizontal position moving stage, adjuster and tuningout knob so that electromagnetism is surveyed
Power dynamometer is vacantly placed in right over electronic analytical balance pallet so that the position relationship of transmission rod, suspension and weight is as follows：It passes
Power bar is directed toward X-direction, and transmission rod, suspension and weight three are in XOZ planes, and suspension and transmission rod are mutually perpendicular to；Work as electromagnetism
When moving coil in dynamometer is by certain electric current, since permanent magnet generates even intense radiation magnetic field and current-carrying coil generates
Magnetic field interaction so that moving coil under the action of the electromagnetic torque of generation around shaft rotate；It is fixed on shaft
Transmission rod together can also rotate, and the rotation of transmission rod passes through suspension to weight there are one the pulling force of Z-direction, changes weight pair
Pressure on electronic analytical balance pallet；Electronic analytical balance generates electromagnetic force according to becoming smaller for pressure on pallet, to mend
Repay pulling force of the suspension to weight.After learning local acceleration of gravity, the electromagnetic torque size of electronic analytical balance generation
It can convert to obtain by the registration changing value on display screen.
Assuming that the electromagnetic torque that electromagnetism dynamometer generates is T, the registration changing value of electronic analytical balance is shown as Δ M, surveys
Acceleration of gravity expediently is g, and the distance of the first half shaft of transmission rod small pitch electromagnetism dynamometer is L2.According to equalising torque
Principle can calculate the electromagnetic torque T of electromagnetism dynamometer generation.
T=Δs MgL2 (1)
The beneficial effects of the utility model are：The caliberating device uses Ampere's law and principle of moment balance, and electromagnetism is surveyed
The micro-electromagnetic force that power device generates is converted into the pulling force to weight, then shows that the registration of weight changes with electronic analytical balance
Value, calculates the pulling force that weight is subject to, to obtain electromagnetic torque to be measured.Wherein, the gravitational moment of weight is more than electromagnetic torque, passes
The rotational displacement of power bar and moving coil is zero, overcomes balance spring and generates what the moment of reaction was brought because moving coil rotates
It influences；In addition, the thrust that the caliberating device is generated using electromagnetism force method simulation microthruster, electromagnetism force method has larger excellent
Gesture：1, amplitude can be adjusted continuously；2, there is good linear relationship；3, it is suitble to remote control under vacuum conditions.Entire test
The operation of process controls and uses simplicity, is easy to grasp.
Description of the drawings
Fig. 1 show the caliberating device front-view schematic diagram of the electromagnetism dynamometer of the utility model.
Fig. 2 show the caliberating device schematic rear view of the electromagnetism dynamometer of the utility model.
Fig. 3 show the support schematic diagram of the utility model.
Fig. 4 show the internal magnetization structure top view of the electromagnetism dynamometer of the utility model.
Fig. 5 show the internal magnetization front sectional view of the electromagnetism dynamometer of the utility model.
The electromagnetic torque that Fig. 6 show the utility model generates schematic diagram.
Fig. 7 show the principle of moment balance figure of the utility model.
Fig. 8 show the external magnetic type structure vertical view of the electromagnetism dynamometer of the utility model.
Fig. 9 show the external magnetic type front sectional view of the electromagnetism dynamometer of the utility model.
Figure 10 show the Trendline of the electromagnetic torque and electric current of the electromagnetism dynamometer of the utility model.
Wherein, 1 is electronic analytical balance；2 be bracket base；3 be pedestal displacement knob；4 be supporting rod；5 be horizontal branch
Strut；6 be fixed link；7 be two-dimensional adjustment device；8 be adjuster fixed knob；9 be adjuster X-direction displacement knob；10 be tune
Save device Z-direction displacement knob；11 be electromagnetism dynamometer；12 be transmission rod；13 be suspension；14 be weight；15 be non-magnetic loading
Platform；16 be electronic analytical balance pallet；17 be adjuster fixed link；18 be cylinder-shaped magnet；19 be magnetic guiding loop；20 be movable square
Shape coil；21 be dynamometer holder；22 be tuningout knob；23 be air-gap；24 be balance spring；25 be bearing；26 be shaft；27 are
Permanent magnet；28 be yoke；29 slap for pole；30 be cylinder-shaped iron core；31 be holder.
Specific implementation mode
Illustrate that the embodiment of the utility model, those skilled in the art can be by this theorys below by way of specific specific example
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific implementation modes are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.
As shown in Figures 1 to 9, a kind of caliberating device suitable for microthruster test system electromagnetism dynamometer, including branch
Frame 31, two-dimensional adjustment device 7, electromagnetism dynamometer 11, transmission rod 12, suspension 13, weight 14, non-magnetic objective table 15 and electronic analysis
Balance 1；Wherein, 11 external current stabilization circuit of the electromagnetism dynamometer, current stabilization circuit provide operating current for electromagnetism dynamometer；Holder
Pedestal 2 is placed on the pedestal of electronic analytical balance 1；Holder is made of left and right supporting rod 4, horizontal support bar 5 and fixed link 6, Gu
Fixed pole 6 is used for connecting bracket 31 and two-dimensional adjustment device 7, and fixed link 5 and horizontal support bar 6 are mutually perpendicular to；The left and right bottom of holder 31
Manual horizontal position moving stage is configured on seat, the pedestal displacement knob 3 of manual horizontal position moving stage is for making two-dimensional adjustment device in the Y direction
Upper movement；Fixed electromagnetism dynamometer 11 in the two-dimensional adjustment device fixed link 17 of two-dimensional adjustment device 7, two-dimensional adjustment device X-direction position
Shifter knob 9 and Z-direction displacement knob 10 are respectively used to that electromagnetism dynamometer 11 is made to move in the x and z directions；On 12 one end of transmission rod
Aperture be fixedly connected with one end of suspension 13,12 other end of transmission rod be fixed in 26 front half section of shaft of electromagnetism dynamometer and
Configured with counterweight, when transmission rod 26 rotation around the shaft, the center of gravity of rotating part is fallen in shaft 26；The tune of electromagnetism dynamometer
Inclined knob 22 is also secured in 26 front half section of shaft, makes it that shaft 26 be driven to rotate by rotating tuningout knob 22, so that
Tuningout operation is completed in the rotation of transmission rod 12；One end that suspension is not connect with transmission rod 12 is fixedly connected weight 14；Weight is shelved
It is placed on together on electronic analytical balance pallet 16 on non-magnetic objective table 15, and with non-magnetic objective table；By rotating hand
The displacement knob of dynamic horizontal position moving stage and two-dimensional adjustment device so that electromagnetism dynamometer be vacantly placed in electronic analytical balance pallet just on
Orientation is set, and transmission rod is in XOZ rotation in surface；Rotate tuningout knob 22 so that transmission rod 12, suspension 13 and weight 14 position
Relationship is as follows：Transmission rod is directed toward X-direction, and transmission rod, suspension and weight three are in XOZ planes, and suspension and transmission rod are mutual
Vertically；When the coil of electromagnetism dynamometer passes through constant current, the electromagnetic torque of generation is equal to " the variation gravitational moment " of weight,
In, electromagnetic torque is that the coil in uniform magnetic field passes through the electromagnetic force F generated when electric current1With the width L of coil1Product；
" the variation gravitational moment " of weight is the small pitch electricity of the registration changing value Δ M of electronic analytical balance, gravity acceleration g and transmission rod
The distance L of the shaft 26 of magnetic dynamometer2The product of three；The selection principle of the weight is：The gravitational moment mgL of weight2It is not small
In the electromagnetic torque F that electromagnetism dynamometer generates1·L1So that transmission rod is X-direction in the direction of entire dynamometry process, wherein m
Attach most importance to amount of substance, g is acceleration of gravity.
The structure of the electromagnetism dynamometer is internal magnetization structure or external magnetic type structure；Internal magnetization structure refers to permanent cylinder
Magnet is located in square coil, and magnetic guiding loop is cased with outside square coil；External magnetic type structure refers to that magnet is located at outside square coil, rectangle
Coil is located between two pole palms, and cylinder-shaped iron core is located in square coil.
If electromagnetism dynamometer is internal magnetization structure, the structure of the internal magnet type electromagnetic dynamometer includes fixed magnetic circuit
System and moving part；Magnetic circuit system includes：It the cylinder-shaped magnet 18 that is fixed on the holder of electromagnetism dynamometer and encircles in circle
The magnetic guiding loop 19 concentric with cylinder-shaped magnet 18 around cylindrical magnetic iron 18, the line of magnetic induction of cylinder-shaped magnet is along the straight of disc
Diameter direction, and the air-gap 23 between magnetic guiding loop and cylinder-shaped magnet 18 is equal everywhere, and homogeneous radiation is formed in air-gap
Magnetic field；Cylinder-shaped magnet 18 and magnetic guiding loop 19 are fixed on dynamometer holder 21；Moving part includes：Both sides are located at sky
Movable square coil 20 in air gap, 26 front half section of shaft and second half section that square coil is fixedly connected up and down, with shaft phase
Matched bearing 25,26 front half section of shaft and is wound with balance spring 24 respectively on the second half section, inner end and the shaft 26 of balance spring 24 are fixed,
It is fixed on tuningout knob 22 positioned at the balance spring outer end of 26 front half section of shaft, is fixed on positioned at the balance spring outer end of 26 second half section of shaft
On bearing 25, and 26 front half section of shaft and the balance spring of second half section spiral direction on the contrary, the both ends of shaft 26 are tip-like pivots, axis
Point is supported in the groove of bearing 25.
If electromagnetism dynamometer is external magnetic type structure, the structure of the external magnetic type electromagnetism dynamometer include moving part and
Fixed magnetic circuit system；Magnetic circuit system includes permanent magnet 27, yoke 28, the pole palm 29 and cylinder-shaped iron core 30；Two fan-shaped
Diameter symmetry distribution and the two of the pole palm 29 on cylindrical core disc are concentric, and cylinder-shaped iron core 30 is fixed on external magnetic type electromagnetism
On dynamometer holder 21, for reducing magnetic resistance, and pole is made to slap in the air-gap 23 between iron core the magnetic field for generating homogeneous radiation；Two
A yoke 28 on cylindrical core disc diameter symmetry distribution, permanent magnet 27 and pole the palm 29 be clipped in up and down two yokes 28 it
Between, yoke plays poly- magnetic in magnetic circuit system and passes magnetic；Moving part includes：Both sides are located at movable in air-gap
Square coil 20,26 front half section of shaft and second half section that square coil is fixedly connected up and down, the bearing 25 to match with shaft,
26 front half section of shaft and balance spring 24 is wound on the second half section respectively, inner end and the shaft 26 of balance spring 24 are fixed, before being located at shaft 26
Half section of balance spring outer end is fixed on tuningout knob 22, is fixed on bearing 25 positioned at the balance spring outer end of 26 second half section of shaft, and
26 front half section of shaft and the balance spring of second half section spiral direction on the contrary, the both ends of shaft 26 are tip-like pivots, and pivot is supported on axis
It holds in 25 groove.
In the present embodiment, the suspension selects the thin copper wire of a diameter of 0.1mm.The suspension selects elongation strain smaller
When filament, i.e. transmission rod apply the power in Z-direction by filament to weight, the deformation very little that filament occurs, almost without generation
Deformation.
In the present embodiment, the flat wind spring that the balance spring selects elasticity modulus smaller, flat wind spring is made of tin bronze, that is, swum
The moment of reaction very little that silk is generated when moving coil rotates around the axis, the case where not considering the moment of reaction of balance spring
Under, the moving coil of energization, which will be always maintained at, to rotate around the axis；Balance spring is rigidly fixed in shaft and holder.
In the present embodiment, what the electromagnetism dynamometer was selected is internal magnet type electromagnetic dynamometer.
The transmission rod is made of hard aluminum material, measures the first half shaft of the small pitch electromagnetism dynamometer of transmission rod
Distance is 20.29mm.
It is the fine copper of 5.3507g that the weight, which selects quality,.
The current stabilization circuit selected range is the DC constant voltage source of 30V, the resistance of 5k Ω and mA grades of ammeter series connection.
The display precision of the electronic analytical balance is 10-4G, range 300g configure the calibrating weight of 200g.
The method for obtaining electric current and electromagnetic torque relationship using above-mentioned apparatus, includes the following steps：
(1) electronic analytical balance is placed on optical table, leveling and calibration operation is carried out to balance, use vernier caliper
Measure the distance L of the shaft of the small pitch electromagnetism dynamometer of transmission rod2；
(2) electromagnetism dynamometer is fixed on two-dimensional adjustment device, two-dimensional adjustment device is fixed on holder, outside electromagnetism dynamometer
Connect current stabilization circuit, position of the adjustment holder on optical table so that electromagnetism dynamometer is vacantly in balance on goods and services top position；
(3) knob of rotary manual horizontal position moving stage and two-dimensional adjustment device so that electromagnetism dynamometer is vacantly placed in electronics day
Flat pallet position directly above rotates tuningout knob so that the position relationship of transmission rod, suspension and weight is as follows：Transmission rod is directed toward X
Direction, transmission rod, suspension and weight three are in XOZ planes, and suspension and transmission rod are mutually perpendicular to；
(4) " peeling " button for pressing balance, after the registration value of display of balance is zero and carries out after stablizing next
Step；
(5) power supply of current stabilization circuit is connected, the moving coil for electromagnetism dynamometer provides direct current；The moving coil of energization
Steady magnetic field interaction between the magnetic field and air-gap of generation generates electromagnetic force so that moving coil has to be rotated around shaft
Opplied moment, which, which acts on transmission rod, makes it lift weight upwards；Transmission rod generates one vertically to suspension
Upward pulling force, transmission rod are directed toward X-direction, i.e. transmission rod produces suspension the pulling force of one Z-direction；Suspension has one to weight
The pulling force of a Z-direction so that pressure change of the weight to balance on goods and services；Electronic analytical balance is mended automatically using the electromagnetic force of itself
Repaying circuit theory can reduce according to the pressure being subject on pallet and generate electromagnetic force so that the pressure and electromagnetic force being subject on pallet
For a pair of of equilibrant force；Wherein, the electromagnetic force that electronic analytical balance generates is directly proportional to the registration changing value on display screen, and electromagnetism is surveyed
The electromagnetic force and suspension that power device generates are equal in magnitude to the pulling force of weight；Power transmission of the gravity of weight by suspension to pivoting
There are one the effects of resistance for bar, to generate a moment of reaction, also referred to as " variation gravitational moment ", thus with electromagnetism dynamometer
The electromagnetic torque of generation balances；
(6) the current value I of the registration changing value Δ M and current stabilization circuit of electronic analytical balance are read；
(7) the output current knob of current stabilization circuit is rotated so that output current choosing value between 0mA -5mA, stepping are
0.07mA；Wherein, each output current value corresponds to corresponding balance registration changing value；
(8) each balance registration changing value Δ M and output current value I corresponding with current value are observed and recorded down, from
And the corresponding electromagnetic torque value of each output current value is calculated by formula (1)；
(9) Trendline that electromagnetic torque is drawn with curent change according to the output current value and electromagnetic torque value that are recorded,
To by the operating current for measuring electromagnetism dynamometer, learn the electromagnetic torque that electromagnetism dynamometer generates.
Figure 10 show the Trendline of the electromagnetic torque and electric current of the electromagnetism dynamometer of the utility model.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, all those of ordinary skill in the art are without departing from the revealed spirit of the utility model
With all equivalent modifications completed under technological thought or change, should be covered by the claim of the utility model.
Claims (6)
1. a kind of caliberating device suitable for microthruster test system electromagnetism dynamometer, it is characterised in that：Including holder (31),
Two-dimensional adjustment device (7), electromagnetism dynamometer (11), transmission rod (12), suspension (13), weight (14), non-magnetic objective table (15) and
Electronic analytical balance (1)；Wherein, the external current stabilization circuit of the electromagnetism dynamometer (11), current stabilization circuit provide for electromagnetism dynamometer
Operating current；Bracket base (2) is placed on the pedestal of electronic analytical balance (1)；Holder is by left and right supporting rod (4), horizontally-supported
Bar (5) and fixed link (6) composition, fixed link (6) are used for connecting bracket (31) and two-dimensional adjustment device (7), fixed link (6) and level
Supporting rod (5) is mutually perpendicular to；Manual horizontal position moving stage, the bottom of manual horizontal position moving stage are configured on the left and right pedestal of holder (31)
Seat shifter knob (3) is for making two-dimensional adjustment device move in the Y direction；The two-dimensional adjustment device fixed link of two-dimensional adjustment device (7)
(17) fixed electromagnetism dynamometer (11) on, two-dimensional adjustment device X-direction displacement knob (9) and Z-direction displacement knob (10) are respectively
For making electromagnetism dynamometer (11) move in the x and z directions；One end of aperture and suspension (13) on transmission rod (12) one end is solid
Fixed connection, transmission rod (12) other end are fixed in shaft (26) front half section of electromagnetism dynamometer and are configured with counterweight, work as biography
When (26) rotation around the shaft of power bar, the center of gravity of rotating part is fallen in shaft (26)；The tuningout knob (22) of electromagnetism dynamometer
It is fixed in shaft (26) front half section, makes it that shaft (26) be driven to rotate by rotating tuningout knob (22), so that power transmission
Tuningout operation is completed in bar (12) rotation；One end that suspension is not connect with transmission rod (12) is fixedly connected weight (14)；Weight is put
It sets on non-magnetic objective table (15), and is placed on together on electronic analytical balance pallet (16) with non-magnetic objective table；Pass through
The displacement knob of rotary manual horizontal position moving stage and two-dimensional adjustment device so that electromagnetism dynamometer is vacantly placed in electronic analytical balance support
Disk position directly above, transmission rod is in XOZ rotation in surface；Rotate tuningout knob (22) so that transmission rod (12), suspension (13) and
The position relationship of weight (14) is as follows：Transmission rod is directed toward X-direction, and transmission rod, suspension and weight three are hanged in XOZ planes
Silk and transmission rod are mutually perpendicular to.
2. the caliberating device according to claim 1 suitable for microthruster test system electromagnetism dynamometer, feature exists
In：The structure of the electromagnetism dynamometer is internal magnetization structure or external magnetic type structure；Internal magnetization structure refers to permanent cylinder-shaped magnet
In square coil, magnetic guiding loop is cased with outside square coil；External magnetic type structure refers to that magnet is located at outside square coil, square coil
Between two poles are slapped, cylinder-shaped iron core is located in square coil.
3. the caliberating device according to claim 2 suitable for microthruster test system electromagnetism dynamometer, feature exists
In：The structure of the internal magnet type electromagnetic dynamometer includes fixed magnetic circuit system and moving part；Magnetic circuit system includes：It is fixed on
Cylinder-shaped magnet (18) on the holder of electromagnetism dynamometer and encircle around cylinder-shaped magnet (18) and cylinder-shaped magnet
(18) concentric magnetic guiding loop (19), the line of magnetic induction of cylinder-shaped magnet is along the diametric(al) of disc, and magnetic guiding loop and cylinder
Air-gap (23) between shape magnet (18) is equal everywhere, and the magnetic field of homogeneous radiation is formed in air-gap；Cylinder-shaped magnet
(18) it is fixed on dynamometer holder (21) with magnetic guiding loop (19)；Moving part includes：Both sides be located in air-gap can
Dynamic square coil (20), shaft (26) front half section and second half section that square coil is fixedly connected up and down, matches with shaft
Bearing (25), shaft (26) front half section and is wound with balance spring (24) respectively on the second half section, inner end and the shaft (26) of balance spring (24)
Fixed, the balance spring outer end for being located at shaft (26) front half section is fixed on tuningout knob (22), is located at the trip of shaft (26) second half section
Silk outer end is fixed on bearing (25), and shaft (26) front half section and the balance spring of second half section spiral direction on the contrary, shaft (26)
Both ends are tip-like pivots, and pivot is supported in the groove of bearing (25).
4. the caliberating device according to claim 2 suitable for microthruster test system electromagnetism dynamometer, feature exists
In：The structure of the external magnetic type electromagnetism dynamometer includes moving part and fixed magnetic circuit system；Magnetic circuit system includes permanent magnetic
Iron (27), yoke (28), the pole palm (29) and cylinder-shaped iron core (30)；Two fan-shaped pole palms (29) are along cylindrical core disc
Diameter symmetry distribution and the two it is concentric, cylinder-shaped iron core (30) is fixed on external magnetic type electromagnetism dynamometer holder (21), is used for
Reduce magnetic resistance, and pole is made to slap in the air-gap (23) between iron core the magnetic field for generating homogeneous radiation；Two yokes (28) are along cylinder
Diameter symmetry distribution on shape iron core disc, permanent magnet (27) and the pole palm (29) are clipped between two yokes (28) up and down, yoke
Play poly- magnetic in magnetic circuit system and passes magnetic；Moving part includes：Both sides are located at the movable rectangular lines in air-gap
It encloses (20), shaft (26) front half section and second half section that square coil is fixedly connected up and down, the bearing to match with shaft (25),
Shaft (26) front half section and balance spring (24) is wound on the second half section respectively, the inner end of balance spring (24) is fixed with shaft (26), is located at
The balance spring outer end of shaft (26) front half section is fixed on tuningout knob (22), and the balance spring outer end for being located at shaft (26) second half section is fixed
On bearing (25), and shaft (26) front half section and the balance spring of second half section spiral direction on the contrary, the both ends of shaft (26) are needle points
Shape pivot, pivot are supported in the groove of bearing (25).
5. the caliberating device according to claim 1 suitable for microthruster test system electromagnetism dynamometer, feature exists
In：The suspension selects the filament that diameter is not more than 0.2mm.
6. the caliberating device according to claim 3 or 4 suitable for microthruster test system electromagnetism dynamometer, feature
It is：The balance spring selects flat wind spring.
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| CN110017930A (en) * | 2019-03-14 | 2019-07-16 | 西北工业大学 | A kind of scaling method of millimicro ox magnitude thrust-measuring device |
| CN111025207A (en) * | 2019-12-11 | 2020-04-17 | 中国科学院光电技术研究所 | Method and device for measuring static magnetic force |
| CN111190340A (en) * | 2018-11-15 | 2020-05-22 | 尼瓦洛克斯-法尔股份有限公司 | Method for measuring the moment of a timepiece balance spring and production support tool system |
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| CN111190340A (en) * | 2018-11-15 | 2020-05-22 | 尼瓦洛克斯-法尔股份有限公司 | Method for measuring the moment of a timepiece balance spring and production support tool system |
| CN111190340B (en) * | 2018-11-15 | 2021-09-17 | 尼瓦洛克斯-法尔股份有限公司 | Method for measuring the moment of a timepiece balance spring and production support tool system |
| US11921468B2 (en) | 2018-11-15 | 2024-03-05 | Nivarox-Far S.A. | Method and production support tooling for measuring the torque of a timepiece balance spring |
| CN110017930A (en) * | 2019-03-14 | 2019-07-16 | 西北工业大学 | A kind of scaling method of millimicro ox magnitude thrust-measuring device |
| CN111025207A (en) * | 2019-12-11 | 2020-04-17 | 中国科学院光电技术研究所 | Method and device for measuring static magnetic force |
| CN111025207B (en) * | 2019-12-11 | 2022-01-11 | 中国科学院光电技术研究所 | Method and device for measuring static magnetic force |
| CN112326113A (en) * | 2020-10-14 | 2021-02-05 | 中山大学 | Force measuring balance calibration system and method |
| CN112326113B (en) * | 2020-10-14 | 2022-01-04 | 中山大学 | Force measuring balance calibration system and method |
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