CN105157917B - Bimoment coil reciprocity disappears poor torque calibration method and device - Google Patents
Bimoment coil reciprocity disappears poor torque calibration method and device Download PDFInfo
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- CN105157917B CN105157917B CN201510531503.6A CN201510531503A CN105157917B CN 105157917 B CN105157917 B CN 105157917B CN 201510531503 A CN201510531503 A CN 201510531503A CN 105157917 B CN105157917 B CN 105157917B
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Abstract
The present invention provides a kind of bimoment coil reciprocity and disappeared poor torque calibration method and device, and it is lever crossbeam, lever crossbeam two ends difference attachment structure identical torquer, i.e. torquer one and torquer two in lever system, above balance pivot；After by unbalanced moments, lever crossbeam deflects, now, in torquer one and torquer two, and hot-wire coil insulating carriage drives hot-wire coil to be moved up and down along magnetic conductor one；The position of hot-wire coil changes.The present invention is eliminated the difference of the effect of electromagnetic compensation torquer coil magnetic induction intensity suffered in different spaces orientation, is reached and improve the linear purpose of measuring system by a kind of mechanical model of the brand-new poor characteristic that disappears with inequality.Disappeared using bimoment coil reciprocity before and after difference, significant changes occur for system linearity.
Description
Technical field
The invention belongs to mechanics field of measuring techniques, it is applied to lever torgue measurement/calibration instrument, and in particular to one
Kind of bimoment coil reciprocity disappears poor torque calibration method and device.
Background technology
When carrying out torque calibration, electromagnetic force is introduced on mechanical lever, and using the electromagnetic force as uneven suffered by system
The compensating torque for the torque that weighs, due to that can adjust lever system to indifferent equilibrium state, therefore is greatly improved the spirit of lever system
Sensitivity, and due to having introduced electromagnetic compensation torque, therefore the stability of lever system also meets requirement.
The torque calibrating device studied, calibration range is 1mgcm~50gcm, and the ratio between the bound of its measuring system reaches
To 50000：1, its maximum technological challenge is that the linearity is kept in gamut, and the linearity of torque calibration is defined as multiple spot school
The ratio between maximum and full scale theoretical value of the least square fitting curve of quasi- result and the difference of corresponding theory value.
The content of the invention
The present invention provides a kind of bimoment coil reciprocity and disappeared poor torque calibration method and device, and it passes through a kind of brand-new tool
There is inequality to disappear the mechanical model of poor characteristic, eliminate the magnetic induction suffered in different spaces orientation of electromagnetic compensation torquer coil strong
The difference of the effect of degree, reaches and improves the linear purpose of measuring system.
Realize the technical scheme of the object of the invention：A kind of bimoment coil reciprocity disappears poor torque calibration method, and it is in lever
In system, it is lever crossbeam, lever crossbeam two ends difference attachment structure identical power above bascule, balance pivot that lever, which is,
Square device, i.e. torquer one and torquer two；
Described torquer includes the magnetic conductor two of tubular, and the permanent magnet of column is set at the inside center of magnetic conductor two,
Fixed magnetizer one above permanent magnet；Hot-wire coil insulating carriage is set between magnetic conductor two and permanent magnet, magnetic conductor one,
Hot-wire coil is wrapped in hot-wire coil insulating carriage bottom；Hot-wire coil insulating carriage is fixed on lever crossbeam one end, can
Moved up and down along permanent magnet, magnetic conductor one；The hot-wire coil wire that hot-wire coil connection is extended；
When electromagnetic torque works, its stress is calculated by formula：
F=B × I × L (1)
In formula：
Stress of f --- the hot-wire coil in magnetic field, N；
B --- magnetic induction intensity, T；
I --- the electric current in hot-wire coil, A；
L --- hot-wire coil length, m；
In torque test process, B, L should be determined for constant, then I is directly proportional to f, and f is obtained by measuring I；Exist to eliminate B
Minor variations in measurement process, employ the above-mentioned lever system for carrying 2 torquers；
In the lever system course of work, after by unbalanced moments, lever crossbeam deflects, now, in torque
In device one and torquer two, hot-wire coil insulating carriage drives hot-wire coil to be moved up and down along magnetic conductor one；Hot-wire coil
Position changes；
Before setting lever crossbeam deflects, the hot-wire coil insulating carriage top in torquer one is pushed up with torquer one
The distance at end is L1, and the distance on the hot-wire coil insulating carriage top in torquer two and the top of torquer two is also L1；
After lever crossbeam deflects, hot-wire coil insulating carriage top and the top of torquer one in torquer one
Distance be L2, the distance on the hot-wire coil insulating carriage top in torquer two and the top of torquer two is L3；
Wherein, when L2 becomes small than L1, then L3 necessarily becomes big than L1, i.e., when the hot-wire coil present position in torquer one
B become hour, then the B of hot-wire coil present position becomes big in torquer two, can so eliminate hot-wire coil in torquer by
In B with position change caused by between f and I linear decline situation.
A kind of bimoment coil reciprocity as described above disappears poor torque calibration method, and the hot-wire coil described in it is copper electric wire
Circle.
A kind of bimoment coil reciprocity as described above disappears poor torque calibration method, torquer one and torquer described in it
Two are placed in same level.
A kind of bimoment coil reciprocity of the present invention disappears poor torque calibrating device, and it is in lever system, and lever is
It is lever crossbeam, lever crossbeam two ends difference attachment structure identical torquer, i.e. torquer above bascule, balance pivot
One and torquer two；Described torquer includes the magnetic conductor two of tubular, and column is set forever at the inside center of magnetic conductor two
Magnet, fixed magnetizer one above permanent magnet；Hot-wire coil insulation branch is set between magnetic conductor two and permanent magnet, magnetic conductor one
Support, hot-wire coil is wrapped in hot-wire coil insulating carriage bottom；Hot-wire coil insulating carriage is fixed on lever crossbeam one
End, can be moved up and down along permanent magnet, magnetic conductor one；The hot-wire coil wire that hot-wire coil connection is extended.
A kind of bimoment coil reciprocity as described above disappears poor torque calibrating device, and the hot-wire coil described in it is copper electric wire
Circle.
A kind of bimoment coil reciprocity as described above disappears poor torque calibrating device, torquer one and torquer described in it
Two are placed in same level.
Effect of the invention is that：The problem of present invention exists for existing structure, to eliminate electromagnetic compensation torquer coil
In different spaces orientation for the purpose of the difference of the effect of suffered magnetic induction intensity.Bimoment coil of the present invention is mutual
Easily disappear poor torque calibration method and device, and it uses bimoment coil reciprocity to disappear before and after difference, and significant changes occur for system linearity,
It is respectively 3 × 10 using the linear result of least square fitting and the difference of its theoretical value-6Nm and 4 × 10-7Nm。
Brief description of the drawings
Fig. 1 is that a kind of bimoment coil reciprocity of the present invention disappears poor torque calibrating device schematic diagram.
Fig. 2 is torquer one (torquer two) structural representation；
In figure：1. hot-wire coil wire；2 hot-wire coil insulating carriages；3 magnetic conductors one；4 hot-wire coils；5 permanent magnets；6
Magnetic conductor two；7. torquer one；8. lever crossbeam；9. balance pivot；10. torquer two.
Embodiment
Disappear poor torque calibration with specific embodiment to a kind of bimoment coil reciprocity of the present invention below in conjunction with the accompanying drawings
Method and device is further described.
Embodiment 1
With the difference for the effect for eliminating electromagnetic compensation torquer coil magnetic induction intensity suffered in different spaces orientation
For the purpose of, it is proposed that the present invention, main contents are for setting up disappearing with reciprocity the bimoment coil of poor characteristic.
The poor torque calibration method as shown in figure 1, a kind of bimoment coil reciprocity of the present invention disappears, it is in lever system
In, lever is bascule, and the top of balance pivot 9 is lever crossbeam 8, the two ends of lever crossbeam 8 difference attachment structure identical power
Square device, i.e. torquer 1 and torquer 2 10.Described torquer 1 and torquer 2 10 is placed in same level.
As shown in Fig. 2 described torquer includes the magnetic conductor 26 of tubular, post is set at the inside center of magnetic conductor 26
The permanent magnet 5 of shape, in the top fixed magnetizer 1 of permanent magnet 5；Set between magnetic conductor 26 and permanent magnet 5, magnetic conductor 1 logical
Electric coil insulating carriage 2, hot-wire coil 4 is wrapped in the bottom of hot-wire coil insulating carriage 2；Hot-wire coil insulating carriage 2
The one end of lever crossbeam 8 is fixed on, can be moved up and down along permanent magnet 5, magnetic conductor 1；Hot-wire coil 4 connects the live wire extended
Enclose wire 1.Hot-wire coil 4 is copper electric coil.
When electromagnetic torque works, its stress is calculated by formula (1)：
F=B × I × L (1)
In formula：
Stress of f --- the hot-wire coil in magnetic field, N；
B --- magnetic induction intensity, T；
I --- the electric current in hot-wire coil, A；
L --- hot-wire coil length, m；
In torque test process, B, L should be determined for constant, then I is directly proportional to f, and f is obtained by measuring I；Exist to eliminate B
Minor variations in measurement process, employ the above-mentioned lever system for carrying 2 torquers 7 and 10；
In the lever system course of work, after by unbalanced moments, lever crossbeam 8 deflects, now, in torque
In device 1 and torquer 2 10, hot-wire coil insulating carriage 2 drives hot-wire coil 4 to be moved up and down along magnetic conductor 1；It is powered
The position of coil 4 changes；
Before setting lever crossbeam 8 deflects, hot-wire coil insulating carriage top and torquer one in torquer 1
The distance on 7 tops is L1, and the distance on the hot-wire coil insulating carriage top in torquer 2 10 and the top of torquer 2 10
Also it is L1；
After lever crossbeam 8 deflects, hot-wire coil insulating carriage top and torquer 1 in torquer 1
The distance on top is that the distance on the hot-wire coil insulating carriage top and the top of torquer 2 10 in L2, torquer 2 10 is
L3；
Wherein, when L2 becomes small than L1, then L3 necessarily becomes big than L1, i.e., when position residing for the hot-wire coil in torquer 1
The B put becomes hour, then the B of hot-wire coil present position becomes big in torquer 2 10, can so eliminate hot-wire coil in torquer
In caused by B changes with position between f and I linear decline situation.
Embodiment 2
The poor torque calibrating device as shown in figure 1, a kind of bimoment coil reciprocity of the present invention disappears, it is in lever system
In, lever is bascule, and the top of balance pivot 9 is lever crossbeam 8, the two ends of lever crossbeam 8 difference attachment structure identical power
Square device, i.e. torquer 1 and torquer 2 10.Torquer 1 and torquer 2 10 are placed in same level.
As shown in Fig. 2 described torquer includes the magnetic conductor 26 of tubular, post is set at the inside center of magnetic conductor 26
The permanent magnet 5 of shape, in the top fixed magnetizer 1 of permanent magnet 5；Set between magnetic conductor 26 and permanent magnet 5, magnetic conductor 1 logical
Electric coil insulating carriage 2, hot-wire coil 4 is wrapped in the bottom of hot-wire coil insulating carriage 2；Hot-wire coil insulating carriage 2
The one end of lever crossbeam 8 is fixed on, can be moved up and down along permanent magnet 5, magnetic conductor 1；Hot-wire coil 4 connects the live wire extended
Enclose wire 1.Hot-wire coil 4 is copper electric coil.
Claims (6)
- The poor torque calibration method 1. a kind of bimoment coil reciprocity disappears, it is characterised in that：In lever system, it is lever crossbeam (8), lever crossbeam (8) two ends above bascule, balance pivot (9) that lever, which is, Difference attachment structure identical torquer, i.e. torquer one (7) and torquer two (10)；Described torquer includes the magnetic conductor two (6) of tubular, and the permanent magnet of column is set at magnetic conductor two (6) inside center (5), the fixed magnetizer one (3) above permanent magnet (5)；Set between magnetic conductor two (6) and permanent magnet (5), magnetic conductor one (3) Hot-wire coil insulating carriage (2), hot-wire coil (4) is wrapped in hot-wire coil insulating carriage (2) bottom；Hot-wire coil insulate Support frame (2) is fixed on lever crossbeam (8) one end, can be moved up and down along permanent magnet (5), magnetic conductor one (3)；Hot-wire coil (4) Connect the hot-wire coil wire (1) extended；When electromagnetic torque works, its stress is calculated by formula (1)：F=B × I × L (1)In formula：Stress of f --- the hot-wire coil in magnetic field, N；B --- magnetic induction intensity, T；I --- the electric current in hot-wire coil, A；L --- hot-wire coil length, m；In torque test process, B, L should be determined for constant, then I is directly proportional to f, and f is obtained by measuring I；To eliminate B in measurement During minor variations, employ the above-mentioned lever system for carrying 2 torquers (7 and 10)；In the lever system course of work, after by unbalanced moments, lever crossbeam (8) deflects, now, in torquer In one (7) and torquer two (10), hot-wire coil insulating carriage (2) drives hot-wire coil (4) to be moved down along along magnetic conductor one (3) It is dynamic；The position of hot-wire coil (4) changes；Before setting lever crossbeam (8) deflects, hot-wire coil insulating carriage top and torquer one in torquer one (7) (7) distance on top is L1, and the hot-wire coil insulating carriage top in torquer two (10) and torquer two (10) top Distance also be L1；After lever crossbeam (8) deflects, hot-wire coil insulating carriage top and torquer one in torquer one (7) (7) distance on top is the hot-wire coil insulating carriage top and torquer two (10) top in L2, torquer two (10) Distance is L3；Wherein, when L2 becomes small than L1, then L3 necessarily becomes big than L1, i.e., when the hot-wire coil present position in torquer one (7) B become hour, then the B of the interior hot-wire coil present position of torquer two (10) becomes big, can so eliminate hot-wire coil in torquer In caused by B changes with position between f and I linear decline situation.
- The poor torque calibration method 2. a kind of bimoment coil reciprocity according to claim 1 disappears, it is characterised in that：Described Hot-wire coil (4) is copper electric coil.
- The poor torque calibration method 3. a kind of bimoment coil reciprocity according to claim 1 disappears, it is characterised in that：Described Torquer one (7) and torquer two (10) are placed in same level.
- The poor torque calibrating device 4. a kind of bimoment coil reciprocity disappears, it is in lever system, and lever is bascule, lever branch It is lever crossbeam (8), lever crossbeam (8) two ends difference attachment structure identical torquer, i.e. torquer one (7) above point (9) With torquer two (10)；It is characterized in that：Described torquer includes the magnetic conductor two (6) of tubular, and the permanent magnet of column is set at magnetic conductor two (6) inside center (5), the fixed magnetizer one (3) above permanent magnet (5)；Set between magnetic conductor two (6) and permanent magnet (5), magnetic conductor one (3) Hot-wire coil insulating carriage (2), hot-wire coil (4) is wrapped in hot-wire coil insulating carriage (2) bottom；Hot-wire coil insulate Support frame (2) is fixed on lever crossbeam (8) one end, can be moved up and down along permanent magnet (5), magnetic conductor one (3)；Hot-wire coil (4) Connect the hot-wire coil wire (1) extended.
- The poor torque calibrating device 5. a kind of bimoment coil reciprocity according to claim 4 disappears, it is characterised in that：Described Hot-wire coil (4) is copper electric coil.
- The poor torque calibrating device 6. a kind of bimoment coil reciprocity according to claim 4 disappears, it is characterised in that：Described Torquer one (7) and torquer two (10) are placed in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531503.6A CN105157917B (en) | 2015-08-26 | 2015-08-26 | Bimoment coil reciprocity disappears poor torque calibration method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531503.6A CN105157917B (en) | 2015-08-26 | 2015-08-26 | Bimoment coil reciprocity disappears poor torque calibration method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105157917A CN105157917A (en) | 2015-12-16 |
| CN105157917B true CN105157917B (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510531503.6A Active CN105157917B (en) | 2015-08-26 | 2015-08-26 | Bimoment coil reciprocity disappears poor torque calibration method and device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016109744B4 (en) * | 2016-05-26 | 2018-11-08 | Sartorius Lab Instruments Gmbh & Co. Kg | Comparator balance and method of operation |
| CN117393269B (en) * | 2023-10-13 | 2024-06-21 | 中科星动力(北京)科技有限公司 | Linear electromagnetic force generating device for micro-thrust calibration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924505Y (en) * | 2006-04-28 | 2007-07-18 | 陕西省计量科学研究院 | Vertical shaft micro torque calibrating device |
| CN102435390A (en) * | 2011-10-24 | 2012-05-02 | 北京航天计量测试技术研究所 | Constant-moment structure for balance micro moment calibrator |
| CN202928740U (en) * | 2012-11-14 | 2013-05-08 | 中国广东核电集团有限公司 | Calibrating device of nuclear power station electrically operated valve moment testboard |
| CN103528752A (en) * | 2013-10-17 | 2014-01-22 | 中国测试技术研究院力学研究所 | Force and moment lever and force and torque standard device |
-
2015
- 2015-08-26 CN CN201510531503.6A patent/CN105157917B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2924505Y (en) * | 2006-04-28 | 2007-07-18 | 陕西省计量科学研究院 | Vertical shaft micro torque calibrating device |
| CN102435390A (en) * | 2011-10-24 | 2012-05-02 | 北京航天计量测试技术研究所 | Constant-moment structure for balance micro moment calibrator |
| CN202928740U (en) * | 2012-11-14 | 2013-05-08 | 中国广东核电集团有限公司 | Calibrating device of nuclear power station electrically operated valve moment testboard |
| CN103528752A (en) * | 2013-10-17 | 2014-01-22 | 中国测试技术研究院力学研究所 | Force and moment lever and force and torque standard device |
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| CN105157917A (en) | 2015-12-16 |
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