CN105333993B - Micro-force sensor dynamic calibration system and method based on small negative step force - Google Patents
Micro-force sensor dynamic calibration system and method based on small negative step force Download PDFInfo
- Publication number
- CN105333993B CN105333993B CN201510794365.0A CN201510794365A CN105333993B CN 105333993 B CN105333993 B CN 105333993B CN 201510794365 A CN201510794365 A CN 201510794365A CN 105333993 B CN105333993 B CN 105333993B
- Authority
- CN
- China
- Prior art keywords
- force
- counterweight
- negative step
- bullet
- micro
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of Micro-force sensor dynamic calibration system based on small negative step force of disclosure, including small negative step force signal occur to fix and adjusting means, signal amplification and harvester with adjusting means, sensor.The small negative step force signal occurs to include electromagnetic launch system, static load device with adjusting means and plays locking apparatus；The small negative step force signal occurs to fix with the sensor by the static load device with adjusting means to be connected with adjusting means；The sensor is fixed to be connected with adjusting means by coaxial cable and signal amplification with harvester；The electromagnetic launch system includes charging and discharging circuit and launching trajectory, and the charging and discharging circuit includes charging voltage tunable capacitor group, rectifier bridge, contact switch, charge switch and magnet coil；The magnet coil is embedded in the launching trajectory or wound around outside the launching trajectory.A kind of Micro-force sensor dynamic calibrating method based on small negative step force is also disclosed in the application.
Description
Technical field
The application is related to dynamic impulse Experimental Mechanics technical field, specifically, is related to one kind and is based on small negative step force
Micro-force sensor dynamic calibration system and method.
Background technology
As the low-dimensional materials application field such as fiber, film is more and more wider, to the sign of its dynamic mechanical increasingly
Urgently, wherein the dynamic calibration technology of widely used piezoelectric type Micro-force sensor is just by more in dynamic mechanical sign
Carry out more concerns.Using positive step force signal scaling and negative step mainly is utilized to piezoelectric force transducer dynamic calibration at present
Force signal demarcates two major classes.Calibration system wherein drop hammer (such as：The A of CN 102401707) swash using drop hammer tester as sensor
Device is encouraged, produce positive step force signal by drop hammer tester demarcates to sensor." Air-Uplift " striking dynamic calibration system
(such as：Beijing Institute of Technology, Zhang Xunwen etc., " Air-Uplift " striking dynamic calibration system), based on Pneumatic immpacting principle, with reference to variable cross-section
Amplification principle and MATERIALS ' DYNAMIC fracture, realize the generation of positive step force signal, transducer calibration are realized as excitation.Based on material
Expect the calibration system of the negative step force signal of Dynamic Fracture, including such as break (such as：Zhejiang University, Wei Yan are fixed etc., and standard bears step
The realization of power and its measuring study) and precompressed-thrust (such as：Zhejiang University, Chen Hui etc., a kind of new great force value are wide band
Negative step force production method) scheme, and based on steel wire rope quick cutting device (such as：China University Of Petroleum Beijing, Liu Guangfu etc., car
Take turns force snesor side force dynamic calibration) negative step dynamic calibration system.Such method is previously applied static load, passes through material
Brittle failure or clipping apparatus realize the generation of negative step force signal, realize that different size bears rank by the various sizes of design of brittle failure material
The regulation of jump force signal.In above-mentioned scaling method, the system and device that drops hammer is bulky；Pneumatic immpacting subtraction unit is complicated, and noise is big；
Brittle failure material is disposable design in material brittle failure method, and complex designing, calibration experiment can not repeat；Steel wire rope fast shut-off method is steady
It is qualitative poor, repeatable poor.In addition, above scaling method is larger due to the load of offer, it is difficult to realizes the dynamic of Micro-force sensor
State is demarcated.
In summary, small dynamic load, while reproducible, stability can accurately be provided with development one kind by how developing
It is high, noise is small, high-precision piezoelectric type Micro-force sensor dynamic calibration system turns into technical problem urgently to be resolved hurrily with technology.
The content of the invention
In view of this, technical problems to be solved in this application there is provided a kind of micro- power based on small negative step force and pass
Sensor dynamic calibration system and method, can accurately produce small negative step force, and it is reproducible, stability is high, noise is small, structure
It is compact, simple and practical, precision is high, can solve the problem that in MATERIALS ' DYNAMIC stretching experiment, especially film or fibrous material dynamic tensile
Micro-force sensor dynamic calibration problem in experiment.
In order to solve the above-mentioned technical problem, the application has following technical scheme：
A kind of Micro-force sensor dynamic calibration system based on small negative step force, it is characterised in that including：Small negative rank
The force signal that jumps occurs and adjusting means, sensor fixation and adjusting means, signal amplification and harvester,
The small negative step force signal occurs to include electromagnetic launch system, static load device and bullet only dress with adjusting means
Put；
The small negative step force signal occur with adjusting means by the static load device and the sensor fix with
Adjusting means connects；The sensor is fixed to be connected with adjusting means by coaxial cable and signal amplification with harvester
Connect；
The electromagnetic launch system includes charging and discharging circuit and launching trajectory, and the charging and discharging circuit can including charging voltage
Adjust capacitance group, rectifier bridge, contact switch, charge switch and magnet coil；The magnet coil is embedded in the launching trajectory
It is interior or wind around outside the launching trajectory.
Preferably, wherein, the launching trajectory is cylindrical made of low-friction coefficient, non-magnetic, non-conducting material
Hollow pipeline, launching trajectory upper end outer surface make screw thread, and lower end is provided with the symmetrical openings for loading and unloading electromagnetism counterweight.
Preferably, wherein, the bullet locking apparatus stops track, adjusting nut, spring, buckle, central through hole and footpath including bullet
To through hole；
The bullet stops the central through hole that orbit centre includes the variable cross-section of inner band center screw thread in the axial direction, the hair
Penetrate track and stop track with the bullet and docked by the center screw thread on the central through hole；The bullet stops track circumference symmetric design
There are two uiform section through holes with length-specific internal thread, the spring and the buckle are placed in the circumferential uiform section through hole,
The adjusting nut stops track with the bullet by the internal thread of the circumferential uiform section through hole and the spring is connected；The bullet
Spring is be hinged by spherical hinge with the adjusting nut and is court with planar end surface one end rigid connection of the buckle, the buckle other end
Under inclined oblique section.
Preferably, wherein, the central through hole that the bullet stops track is variable cross-section through hole.
Preferably, wherein, the static load device includes electromagnetism counterweight and static load fine rule, and the electromagnetism counterweight is by high magnetic conductance
The counterweight of different quality same shape made of rate material, the head design of electromagnetism counterweight taper counterweight cap in echelon, institute
State static load fine rule and counterweight is connected by counterweight cap；Described static load fine rule one end is connected to the sensor fixation and the peace of adjusting means
On dress and adjusting nut, the other end stops track and the Electromagnetic Launching track through bullet, and connects the electromagnetism counterweight；
The static load fine rule is the filament made of the less flexible material of density；Before calibration experiment, the electromagnetism counterweight
Connect and be suspended in the launching trajectory by the static load fine rule, and it is coaxial with the launching trajectory.
Preferably, wherein, during calibration experiment, the electromagnetism counterweight of the suspension is launched into the bullet locking apparatus, by card
Buckle is extremely fixed.
Preferably, wherein, the sensor is fixed includes installation and adjusting nut and piezoelectricity to be calibrated with adjusting means
Declined force snesor, and the installation and one end of adjusting nut are threaded, and other end center carries wiring hole；It is described installation with
Adjusting nut is connected in series with the piezoelectric type Micro-force sensor to be calibrated by screw thread；The static load fine rule is connect by described
String holes is fixedly connected on the installation and adjusting nut.
The present invention also provides the demarcation side that a kind of Micro-force sensor dynamic calibration system based on small negative step force is carried out
Method, it is characterised in that including：
Before calibration experiment：It is preferred that the electromagnetism counterweight of appropriate mass, is connected with static load fine rule and is suspended in launching trajectory
It is interior, it is coaxial with launching trajectory；The electromagnetism counterweight piezoelectric type Micro-force sensor to be calibrated is produced under gravity one to
Lower active force, now, piezoelectric type Micro-force sensor to be calibrated produce a small and irregular positive step force signal, should
Signal will decay to zero rapidly；
During calibration experiment：It is preferred that suitable voltage charges to charging voltage tunable capacitor group, and after charging complete, contact
Switch is opened, and electromagnetism counterweight is gone out under pulse magnetic effect caused by magnet coil along electromagnetic rail launching, quickly enters bullet
Only track, and be snapped stuck；Now, the gravity for the electromagnetism counterweight that piezoelectric type Micro-force sensor to be calibrated was originally born is rapid
Disappearing, moment produces a small and accurate negative step force signal, and the negative step force size is equal to the gravity of electromagnetism counterweight,
The negative step force will be stabilized for a long time on a timeline；
After calibration experiment：Outward winding bullet and stop the buckle that adjusting nut connects in track, electromagnetism counterweight is released；
Opening in launching trajectory lower end changes the electromagnetism counterweight of different quality, repeats three step calibration experiments above, holds
Row different size bears the demarcation of step force signal.
Compared with prior art, system and method described herein, following effect has been reached：
First, due to be applied to one of major defect (or feature) of piezoelectric type Micro-force sensor of dynamic measurement can not
The static force signal that will act on thereon avoided rapidly decays to zero, and dynamic force signal is changed over time and can recorded for a long time
Get off.The present invention will make full use of the shortcoming (or feature), and shortcoming is converted into advantage, be hung using piezoelectric type Micro-force sensor
One electromagnetism counterweight, positive step force caused by this static force signal of the gravity of electromagnetism counterweight rapidly decays to zero, when using electromagnetism
Lift-off technology launches the electromagnetism counterweight of the suspension straight up, and the piezoelectricity that electromagnetism counterweight is attached thereto while being launched declines power
What sensor was originally subject to decayed to, and zero positive step force signal rapid will be changed into accurate small negative step force signal,
And the negative step force size is equal to the gravity of electromagnetism counterweight, in the opposite direction.Because electromagnetism counterweight is launched away and stop track in bullet
Inside be stuck fixation, the presence that can stablize for a long time on a timeline so as to the negative step force.Thus it is clear that system proposed by the present invention and
Technology has the function of cleverly accurately producing small negative step force, and simple and compact for structure, economical and practical, simple operation.
Secondth, because the multiple transmitting that used electromagnetism counterweight can be stablized repeatedly uses, this so as to the present invention is based on
The Micro-force sensor dynamic calibration system of small negative step force has repeatable and accurate generation with technology when doing calibration experiment
The outstanding advantages of identical small negative step force, thus, have well repeatability and height stability, and noise it is small wait protrusion
Advantage.
The 3rd, although the present invention is directed to piezoelectric type Micro-force sensor, for the dynamic Micro-force sensor of other non-depressed electric-type
Dynamic calibration problem it is equally applicable.Therefore, it is applied widely be the invention another advantage.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please is used to explain the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the composition schematic diagram of the Micro-force sensor dynamic calibration system based on small negative step force in the present invention；
Fig. 2 is piezoelectric type Micro-force sensor dynamic calibration experiment electrical signal data (0.9V) in the embodiment of the present invention；
Fig. 3 is voltage in piezoelectric type Micro-force sensor dynamic calibration experiment in the embodiment of the present invention 2 and dynamic load relation
Curve map.
Embodiment
Some vocabulary has such as been used to censure specific components among specification and claim.Those skilled in the art should
It is understood that hardware manufacturer may call same component with different nouns.This specification and claims are not with name
The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer in receivable error range, those skilled in the art can be described within a certain error range solution
Technical problem, basically reach the technique effect.In addition, " coupling " one word is herein comprising any direct and indirect electric property coupling
Means.Therefore, if the first device of described in the text one is coupled to a second device, representing the first device can directly electrical coupling
The second device is connected to, or the second device is electrically coupled to indirectly by other devices or coupling means.Specification
Subsequent descriptions for implement the application better embodiment, so it is described description be for the purpose of the rule for illustrating the application,
It is not limited to scope of the present application.The protection domain of the application is worked as to be defined depending on appended claims institute defender.
Embodiment 1
Shown in Figure 1 is a kind of herein described Micro-force sensor dynamic calibration system based on small negative step force
The composition schematic diagram of specific embodiment.The system includes：Small negative step force signal occurs to fix with adjusting means 30, sensor
With adjusting means 40, signal amplification and the three parts of harvester 50, wherein, the small negative step force signal occurs and regulation
Device includes electromagnetic launch system, static load device and bullet locking apparatus three parts：
Electromagnetic launch system：It is made up of charging and discharging circuit, launching trajectory 4, wherein charging and discharging circuit is adjustable by charging voltage
Capacitance group 1, rectifier bridge 21, contact switch 2, charge switch 22, magnet coil 3 form；Magnet coil 3 is embedded in launching trajectory
It is interior or wind around outside launching trajectory 4.Launching trajectory 4 is the cylinder made of low-friction coefficient, non-magnetic, non-conducting material
Shape hollow pipeline, the upper end outer surface of launching trajectory 4 make screw thread, and lower end is provided with the symmetrical openings for being easy to load and unload electromagnetism counterweight.
Static load device：It is made up of electromagnetism counterweight 5 and static load fine rule 6；Electromagnetism counterweight 5 be made of high-permeability material not
The counterweight of homogenous quantities same shape, taper counterweight cap, static load fine rule 6 are connected the head design of electromagnetism counterweight 5 by counterweight cap in echelon
Connect electromagnetism counterweight 5；Static load fine rule 6 is the filament made of the less flexible material of density；The one end of static load fine rule 6 connects electromagnetism weight
Code, the other end is connected to the sensor and fixed on installation and adjusting nut 16 with adjusting means, and passes through and play locking apparatus
Central through hole 13 and the center of launching trajectory 4.Before calibration experiment, electromagnetism counterweight 5 is connected by static load fine rule 6 and is suspended in transmitting rail
In road 4, and it is coaxial with launching trajectory 4.
Play locking apparatus：Track 7, adjusting nut 8, spring 10, buckle 11, central through hole 13,12 groups of radial direction through hole are stopped by bullet
Into.Bullet stops the central through hole 13 that the center of track 7 includes the variable cross-section of inner band center screw thread 14 in the axial direction, launching trajectory 4
Stop track 7 with bullet to dock by the center screw thread 14 on the central through hole 13.Bullet stops the circumferential symmetric design of track 7 two with specific
The uiform section through hole of length internal thread, spring 10 and buckle 11 are placed in the circumferential uiform section through hole, and adjusting nut 8 passes through this week
Stop internal thread from track 7 to uiform section through hole and bullet and spring 10 is connected, spring 10 is hinged with adjusting nut 8 by spherical hinge
And it is the oblique section being downwardly inclined with planar end surface one end rigid connection of buckle 11, the other end of buckle 11.
Sensor in the present invention is fixed further comprises installation and adjusting nut 16 and pressure to be calibrated with adjusting means
The two parts of electric-type Micro-force sensor 15.Wherein, installation is threaded with the one end of adjusting nut 16, and one end center carries wiring hole；
Installation is connected in series with adjusting nut 16 and piezoelectric type Micro-force sensor 15 to be calibrated by screw thread；Static load fine rule 6 is by connecing
String holes is fixedly connected on installation and adjusting nut 16.The sensor is fixed and adjusting means and signal amplification and harvester
Between connected by coaxial cable 17.
During calibration experiment, electromagnetism counterweight 5, which is launched into, to be played in locking apparatus, by 11 stuck fixation of buckle.
Embodiment 2
The present invention, which also provides, a kind of utilizes above-mentioned Micro-force sensor dynamic calibration system based on small negative step force to carry out
Scaling method, including：
Step 1：Before calibration experiment：As shown in figure 1, it is preferred that the electromagnetism counterweight 5 of appropriate mass, the present embodiment first selects
It is 5g electromagnetism counterweights with quality, connects electromagnetism counterweight 5 with static load fine rule 6 and be suspended in launching trajectory 4, it is same with launching trajectory 4
Axle and do not contacted with launching trajectory；The electromagnetism counterweight 5 produces one to piezoelectric type Micro-force sensor to be calibrated under gravity
Down force；
Step 2：Use coaxial cable connection Micro-force sensor and electric signal amplification and harvester.Treat the appearance of electromagnetism counterweight 5
After state is stable, begin to use the piezoelectric type Micro-force sensor voltage signal that oscillograph recording is to be calibrated, now, pressure to be calibrated
Electric-type Micro-force sensor 15 produces a small and irregular positive step force signal, and the signal will decay to zero rapidly；
Step 3：It is preferred that suitable voltage is to be charged to charging voltage tunable capacitor group 1；
Step 4：After treating that oscilloscope signal is stable, i.e., after signal is zero, contact switch 2 is opened, and electromagnetism counterweight 5 is in electricity
Launch under pulse magnetic effect caused by magnetic coil 3 along electromagnetic path 4, quickly enter bullet and stop in track 7, and be snapped 11
It is stuck；Now, the gravity for the electromagnetism counterweight that piezoelectric type Micro-force sensor to be calibrated was originally born rapidly disappears, and moment produces one
Individual small and accurate negative step force signal, the negative step force size are equal to the gravity of electromagnetism counterweight, the negative step force when
It will be stabilized for a long time on countershaft；Voltage signal change is preserved, first group of demarcation is completed.
Step 5：After calibration experiment：A rubber blanket is padded in the interior lower end of launching trajectory 4, bullet is outwarded winding and stops in track 7
The buckle 11 that connects of adjusting nut 8, electromagnetism counterweight 5 is released, and rubber blanket plays one to the electromagnetism counterweight released
Individual buffer protection utilizes, and the opening in the lower end of launching trajectory 4 changes the electromagnetism counterweight of different quality, and the present embodiment uses respectively
Quality is 10g, 20g, 50g, 100g, 200g, 400g, and 500g electromagnetism counterweights repeat the above steps one, two, three, four, you can perform
Different size bears the demarcation of step force signal；Preserve relevant voltage signal intensity.Fig. 2 is that piezoelectric type Micro-force sensor dynamic is marked
Surely electrical signal data is tested.
Step 6：To voltage signal obtained by calibrating every time and the gravitational cue for converting to obtain by corresponding electromagnetism counterbalance mass
I.e. negative step force signal fitting, you can conveniently obtain the accurate dynamic calibration result of piezoelectric type Micro-force sensor to be calibrated, i.e.,
Voltage and dynamic load relation curve, as shown in Figure 3.
Embodiments of the invention 2 have carried out dynamic calibration to piezoelectric type Micro-force sensor, for the dynamic of other non-depressed electric-type
The dynamic calibration problem of state Micro-force sensor is equally applicable.
By various embodiments above, beneficial effect existing for the application is：
First, due to be applied to one of major defect (or feature) of piezoelectric type Micro-force sensor of dynamic measurement can not
The static force signal that will act on thereon avoided rapidly decays to zero, and dynamic force signal is changed over time and can recorded for a long time
Get off.The present invention will make full use of the shortcoming (or feature), and shortcoming is converted into advantage, be hung using piezoelectric type Micro-force sensor
One electromagnetism counterweight, positive step force caused by this static force signal of the gravity of electromagnetism counterweight rapidly decays to zero, when using electromagnetism
Lift-off technology launches the electromagnetism counterweight of the suspension straight up, and the piezoelectricity that electromagnetism counterweight is attached thereto while being launched declines power
What sensor was originally subject to decayed to, and zero positive step force signal rapid will be changed into accurate small negative step force signal,
And the negative step force size is equal to the gravity of electromagnetism counterweight, in the opposite direction.Because electromagnetism counterweight is launched away and stop track in bullet
Inside be stuck fixation, the presence that can stablize for a long time on a timeline so as to the negative step force.Thus it is clear that system proposed by the present invention and
Technology has the function of cleverly accurately producing small negative step force, and simple and compact for structure, economical and practical, simple operation.
Secondth, because the multiple transmitting that used electromagnetism counterweight can be stablized repeatedly uses, this so as to the present invention is based on
The Micro-force sensor dynamic calibration system of small negative step force has repeatable and accurate generation with technology when doing calibration experiment
The outstanding advantages of identical small negative step force, thus, have well repeatability and height stability, and noise it is small wait protrusion
Advantage.
The 3rd, although the present invention is directed to piezoelectric type Micro-force sensor, for the dynamic Micro-force sensor of other non-depressed electric-type
Dynamic calibration problem it is equally applicable.Therefore, it is applied widely be the invention another advantage.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, apparatus or computer program
Product.Therefore, the application can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the application can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
Some preferred embodiments of the application have shown and described in described above, but as previously described, it should be understood that the application
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations,
Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in the scope of the invention is set forth herein
It is modified., then all should be in this Shen and the change and change that those skilled in the art are carried out do not depart from spirit and scope
Please be in the protection domain of appended claims.
Claims (5)
- A kind of 1. Micro-force sensor dynamic calibration system based on small negative step force, it is characterised in that including：Small negative step Force signal occurs and adjusting means, sensor fixation and adjusting means, signal amplification and harvester,The small negative step force signal occurs to include electromagnetic launch system, static load device with adjusting means and plays locking apparatus；The small negative step force signal occurs to fix and adjust by the static load device and the sensor with adjusting means Device connects；The sensor is fixed to be connected with adjusting means by coaxial cable and signal amplification with harvester；The electromagnetic launch system includes charging and discharging circuit and launching trajectory, and the charging and discharging circuit includes charging voltage adjustable electric Appearance group, rectifier bridge, contact switch, charge switch and magnet coil；The magnet coil be embedded in the launching trajectory or Wind around outside the launching trajectory；The static load device includes electromagnetism counterweight and static load fine rule, and the electromagnetism counterweight is different made of high-permeability material The counterweight of shape identical in quality, the head design of electromagnetism counterweight taper counterweight cap in echelon, the static load fine rule is by counterweight Cap connects counterweight；Described static load fine rule one end is connected to the sensor and fixed in installation and adjusting nut with adjusting means, The other end stops track and the launching trajectory through bullet, and connects the electromagnetism counterweight；The static load fine rule is the filament made of the less flexible material of density；Before calibration experiment, the electromagnetism counterweight passes through The static load fine rule is connected and is suspended in the launching trajectory, and coaxial with the launching trajectory；The bullet locking apparatus, including bullet stop track, adjusting nut, spring, buckle, central through hole and radial direction through hole；The bullet stops the central through hole that orbit centre includes the variable cross-section of inner band center screw thread in the axial direction, the transmitting rail Stop track with the bullet and docked by the center screw thread on the central through hole in road；The bullet, which stops track circumference symmetric design, two The individual uiform section through hole with length-specific internal thread, the spring and the buckle are placed in the circumferential uiform section through hole, described Adjusting nut stops track with the bullet by the internal thread of the circumferential uiform section through hole and the spring is connected；The spring with The adjusting nut is be hinged by spherical hinge and is that court has a down dip with planar end surface one end rigid connection of the buckle, the buckle other end Oblique oblique section；The sensor is fixed includes installation and adjusting nut and piezoelectric type Micro-force sensor to be calibrated with adjusting means, described Install and be threaded with one end of adjusting nut, other end center carries wiring hole；The installation is treated with adjusting nut with described The piezoelectric type Micro-force sensor of demarcation is connected in series by screw thread；The static load fine rule is fixedly connected on institute by the wiring hole State on installation and adjusting nut.
- 2. the Micro-force sensor dynamic calibration system according to claim 1 based on small negative step force, it is characterised in thatThe launching trajectory is the cylindrical, hollow pipeline made of low-friction coefficient, non-magnetic, non-conducting material, the transmitting Track upper end outer surface makes screw thread, and lower end is provided with the symmetrical openings for loading and unloading electromagnetism counterweight.
- 3. the Micro-force sensor dynamic calibration system according to claim 1 based on small negative step force, it is characterised in thatThe central through hole that the bullet stops track is variable cross-section through hole.
- 4. according to claims 1 to 3 it is any described in the Micro-force sensor dynamic calibration system based on small negative step force, it is special Sign is,During calibration experiment, the electromagnetism counterweight of the suspension is launched into the bullet locking apparatus, by the stuck fixation of buckle.
- A kind of 5. any described Micro-force sensor dynamic calibration system based on small negative step force using Claims 1 to 44 The scaling method that system is carried out, it is characterised in that including：Before calibration experiment：The electromagnetism counterweight of appropriate mass is selected, is connected and is suspended in launching trajectory with static load fine rule, with Launching trajectory is coaxial；The electromagnetism counterweight produces an effect downwards to piezoelectric type Micro-force sensor to be calibrated under gravity Power, now, piezoelectric type Micro-force sensor to be calibrated produce a small and irregular positive step force signal, and the signal will Decay to zero rapidly；During calibration experiment：Suitable voltage is selected to be charged to charging voltage tunable capacitor group, after charging complete, contact switch Open, electromagnetism counterweight is gone out under pulse magnetic effect caused by magnet coil along electromagnetic rail launching, is quickly entered bullet and is stopped rail Road, and be snapped stuck；Now, the gravity for the electromagnetism counterweight that piezoelectric type Micro-force sensor to be calibrated was originally born disappears rapidly Lose, moment produces a small and accurate negative step force signal, and the negative step force size is equal to the gravity of electromagnetism counterweight, should Negative step force will be stabilized for a long time on a timeline；After calibration experiment：Outward winding bullet and stop the buckle that adjusting nut connects in track, electromagnetism counterweight is released；Opening in launching trajectory lower end changes the electromagnetism counterweight of different quality, repeats three step calibration experiments above, performs not The demarcation of step force signal is born with size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794365.0A CN105333993B (en) | 2015-11-18 | 2015-11-18 | Micro-force sensor dynamic calibration system and method based on small negative step force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794365.0A CN105333993B (en) | 2015-11-18 | 2015-11-18 | Micro-force sensor dynamic calibration system and method based on small negative step force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105333993A CN105333993A (en) | 2016-02-17 |
| CN105333993B true CN105333993B (en) | 2018-01-16 |
Family
ID=55284645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510794365.0A Expired - Fee Related CN105333993B (en) | 2015-11-18 | 2015-11-18 | Micro-force sensor dynamic calibration system and method based on small negative step force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333993B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651506B (en) * | 2016-03-23 | 2018-01-30 | 上海交通大学 | The radial direction force loading device of wine lance seat test |
| CN105910755B (en) * | 2016-05-23 | 2020-03-20 | 中国人民解放军战略支援部队航天工程大学 | Calibration device suitable for small thrust measurement system electromagnetism power application ware |
| CN106802213B (en) * | 2017-01-10 | 2019-04-23 | 大连理工大学 | A kind of micro-electromagnetic force detection device |
| CN108414127A (en) * | 2018-02-01 | 2018-08-17 | 南京航空航天大学 | Compensation Micromass cell culture torsion balance |
| CN108896398B (en) * | 2018-08-31 | 2021-03-26 | 中国航天空气动力技术研究院 | Dynamic calibration equipment for generating negative step load |
| CN111220322B (en) * | 2019-11-08 | 2021-04-09 | 中北大学 | Negative step calibrating device |
| CN111174969A (en) * | 2020-03-06 | 2020-05-19 | 合肥工业大学 | Dynamic calibration equipment for multi-dimensional force sensor generating negative step |
| CN113970403A (en) * | 2021-10-12 | 2022-01-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | Negative step force generation device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561285A (en) * | 1984-09-14 | 1985-12-31 | Tab Leasing | Thermally isolated calibration apparatus |
| CN1125845A (en) * | 1994-12-28 | 1996-07-03 | 中国航空工业总公司第三零四研究所 | Method for dynamically calibrating force sensor |
| CN1442682A (en) * | 2003-04-09 | 2003-09-17 | 中国科学院合肥智能机械研究所 | Multi-dimensional force sensor dynamic experiment table and method thereof |
| CN103712744A (en) * | 2014-01-10 | 2014-04-09 | 浙江大学 | Positive step force testing system |
| CN103728095A (en) * | 2014-01-10 | 2014-04-16 | 浙江大学 | Negative step force testing system |
-
2015
- 2015-11-18 CN CN201510794365.0A patent/CN105333993B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561285A (en) * | 1984-09-14 | 1985-12-31 | Tab Leasing | Thermally isolated calibration apparatus |
| CN1125845A (en) * | 1994-12-28 | 1996-07-03 | 中国航空工业总公司第三零四研究所 | Method for dynamically calibrating force sensor |
| CN1442682A (en) * | 2003-04-09 | 2003-09-17 | 中国科学院合肥智能机械研究所 | Multi-dimensional force sensor dynamic experiment table and method thereof |
| CN103712744A (en) * | 2014-01-10 | 2014-04-09 | 浙江大学 | Positive step force testing system |
| CN103728095A (en) * | 2014-01-10 | 2014-04-16 | 浙江大学 | Negative step force testing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105333993A (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105333993B (en) | Micro-force sensor dynamic calibration system and method based on small negative step force | |
| Donoso et al. | Magnet fall inside a conductive pipe: motion and the role of the pipe wall thickness | |
| CN106124151B (en) | Extra-high voltage direct-current single-column composite post insulator shock test device and its test method | |
| CN112903484B (en) | Material impact strength measuring device | |
| Moses et al. | Evaluation of adhesion by ultrasonic vibrations | |
| CN208705164U (en) | A kind of wire clamp and its test of elongation rate instrument | |
| CN201984114U (en) | Universal non-contact testing device of electrostatic discharge generator | |
| Mustonen et al. | Experimental verification of pickup nonlinearity | |
| GB575150A (en) | Improvements in or relating to devices for testing the thickness of coatings on ferro-magnetic materials | |
| EA016899B1 (en) | Device for determining hardness | |
| CN105716765B (en) | A kind of device for measuring force and force measuring method that can continuously change force size | |
| CN102022110B (en) | Exciting tension assembly test device for pulser | |
| CN105973976A (en) | Magnetic suspension thrombelastogram instrument | |
| CN105784303B (en) | Method is determined based on the spacecraft control of product envelope of vibration rig ability | |
| US3904956A (en) | Alternating force magnetometer | |
| Vaterrodt et al. | PD inception and electrical treeing of silicone rubber at DC voltage using electrical and optical measurement equipment | |
| RU2656649C1 (en) | Method and device for measuring characteristics of explosion of explosive charge in the near zone | |
| US2802984A (en) | Testing apparatus | |
| US2677960A (en) | Measurement of adhesion by vibration | |
| US6786074B1 (en) | Shock absorber dynamometer | |
| Jaeger et al. | Induction sensor characterisation for electromagnetic tracking systems | |
| Gupta et al. | Modeling of calibration circuit for partial discharge measurement | |
| RU68713U1 (en) | DEVICE FOR MEASURING CHARACTERISTICS OF AMORPHIC FERROMAGNETIC MICROWIRES | |
| Zmarzły et al. | Dynamics of impulse response of streaming electrification current in swinging cylinder system insulation | |
| CN114088969B (en) | Light gas big gun flight piece speed sensor based on electromagnetic induction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |