CN109000832A - A kind of Dynamic High-accuracy six-way force snesor - Google Patents
A kind of Dynamic High-accuracy six-way force snesor Download PDFInfo
- Publication number
- CN109000832A CN109000832A CN201810663173.XA CN201810663173A CN109000832A CN 109000832 A CN109000832 A CN 109000832A CN 201810663173 A CN201810663173 A CN 201810663173A CN 109000832 A CN109000832 A CN 109000832A
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- CN
- China
- Prior art keywords
- accuracy
- elastomer
- force snesor
- dynamic high
- connecting plate
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2287—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges constructional details of the strain gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to a kind of Dynamic High-accuracy six-way force snesors, including elastomer, are connected to the connecting plate of elastomer upper and lower surface, offer groove on connecting plate, elastomer inner surface is pasted with sensing element, and the connecting line of the sensing element is drawn through groove.Compared with prior art, the present invention is tested suitable for various engineering structures, can accurately measure axle power, shearing, moment of flexure and torque in test model simultaneously, powerful, performance is stable, durable high-strength, and measurement result especially dynamic measurement results are accurate and reliable.
Description
Technical field
The invention belongs to civil engineerings, engineering structure test measurement technical field, more particularly, to a kind of Dynamic High-accuracy
Six-way force snesor.
Background technique
Currently, the method for measurement structure internal force has strain gauge method and force snesor method in engineering structure test.
Strain gauge method needs the position of dynamometry to paste foil gauge in structure, and by foil gauge and data collection system phase
Even, the strain data at patch is exported, and the structural internal force at this is calculated according to methods of mechanics.
Force snesor method places the very big homogeneous object of a strength and stiffness at dynamometry position, generally by connecting
Plate, elastomer and sensing element composition.Connection of the connecting plate for realizing force snesor and the other components of structure, and sensing element
(generally foil gauge) is then attached to the specific position of elastomer, and is connected with data collection system to export strain data.?
It before dynamometry, needs to carry out rating test to force snesor, it is established that the linear pass of surveyed internal force and sensing element output strain
System, obtains a series of carry-over factors.Engineering structure test in, by the output strain data of sensing element multiplied by carry-over factor after
Corresponding structural internal force can be obtained.
In engineering structure test, structural internal force is only accurately measured, subsequent test result research is just can be carried out and has
Meta Model analysis is limited, obtains the research achievement with application to engineering practice value.In presently used force measuring method, foil gauge
Method is limited by its measuring principle, can not accurately measure structural internal force after structure enters plasticity；And force snesor method due to
Brittle break easily occurs during the test for the design defect of force sensor device；It is limited to intrinsic error coupling simultaneously
With structural coupling effect, there are biggish errors for the calibration result and measurement result of force snesor, can not accurately measure simultaneously
Axle power, shearing, moment of flexure and torque, measurement performance and measurement function existing defects.And in order to guarantee simultaneously accurately to measure
Axle power, shearing, moment of flexure and torque, used measuring device must have reliable measuring principle and reasonable design structure,
It is easily installed simultaneously.And in view of the test of many engineering structures can not repeat, measuring device will also have very high
Stability and durability, will not because of external condition change and generate biggish performance change or destroy.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of Dynamic High-accuracies six
To force snesor.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of Dynamic High-accuracy six-way force snesor including elastomer, is connected to the connecting plate of elastomer upper and lower surface,
Groove is offered on the connecting plate,
The elastomer inner surface is pasted with sensing element, and the connecting line of the sensing element is drawn through the groove, output
The strain data that sensing element measures.
The elastomer and connecting plate are integral prefabricated component, are made of high-strength homogeneous metal material, between the two light
It slips over and crosses.
The elastomer is homogeneous thin-wall tubular structure, and size will affect calibration result and test measurement as a result, can root
Reasonable design and adjustment are carried out according to test model.
There are four the sensing element is set, rectangular rosette can be used, be located at 0 ° in the middle part of elastomer inner periphery,
At 90 °, 180 ° and 270 °, and by stringent stickup, cure under pressure technique and moisture seal technical measures, guarantee that its is durable
Property and stability.
It needs to carry out rating test before test, and utilizes mechanics of materials knowledge, it is average to make axle power increment-according to test data
Axial strain increment (the strain increment mean values in four strain rosettes, 90 ° of directions), shearing increment-(two pairs of average shear strain increment
Angular strain flower at shear strain increment mean value), the moment of flexure increment-curvature increment (strain increment in two diagonal 90 ° of directions of strain rosette
Difference), torque increase-be averaged the relation curve of torsional strain increment (the shear strain increment mean value at four strain rosettes),
Slope is carry-over factor.The strain data of output can be acquired in object construction multiplied by corresponding carry-over factor when test
Power.
The connecting plate is homogeneous opening plectane, and size can carry out reasonable design and adjustment according to test model.Connection
The internal diameter of plate and the internal diameter of elastic plate are identical.
It is evenly equipped with several anchor holes on connecting plate, is attached for force sensor device and other structures component, it can root
Reasonable design and adjustment are carried out according to actual conditions.
Compared with prior art, the invention has the following advantages that
1) material is homogeneous and high-strength, and is not easy to be destroyed, and performance is stablized；
2) it is easily installed and replaces, not will increase the installation difficulty of test model, will not bring unnecessary external dry
It disturbs；
3) reasonable in design, it smoothly transits between connecting plate and elastomer, so that the strain at sensing element uniformly divides
Cloth utmostly weakens the intrinsic error coupling of force snesor；
4) middle part elastomer is uniform in material and rigidity is very big, has been simutaneously arranged four sensing elements i.e. rectangular rosette, leads to
The compensating effect and reliable rating test scheme for crossing each sensing element, utmostly weaken structural coupling, not only calibration knot
Fruit is ideal, and can measure in test while accurately axle power, shearing, moment of flexure and torque.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is overlooking structure diagram of the invention.
In figure, 1 it is connecting plate, 2 is anchor hole, 3 is groove, 4 is elastomer, 5 is sensing element.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment
Dynamic High-accuracy six-way force sensor device, structure is as shown in Figure 1 and Figure 2, including connecting plate 1, anchor hole 2, ditch
Slot 3, elastomer 4 and sensing element 5.Connecting plate 1 and elastomer 4 are the very big integral prefabricated component of a rigidity, by high-strength even
Matter metal material is made, and smoothly transits between the two.The size of connecting plate 1, anchor hole 2 thereon for realizing force snesor with
The connection of other structures component is reprocessed after can selecting hole count, aperture and cloth hole site according to specific connection；Groove 3 is used
To draw the connecting line of sensing element 5 Yu external data acquisition system, positions and dimensions can also be closed according to the actual situation
Reason design and adjustment.Elastomer 4 is key component of the invention, is the not only strong but also rigid homogeneous thin-walled cylinder knot of pyknic
Structure, height are generally 100~200mm, and cylinder thickness is generally 10~30mm, and ratio of height to thickness is generally 5~10, can be held according to device
Situation is carried to be rationally designed and adjusted；Four sensing elements 5 are the middle part that rectangular rosette is pasted on 4 inside of elastomer, point
It Wei Yu not be at 0 °, 90 °, 180 ° and 270 ° of circumference, and by stringent stickup, cure under pressure technique and moisture seal technology
Measure guarantees its durability and stability.S [1~4] [v, h, d] is the number of each rectangular rosette, and S [1~4] h is each strain
The strain value in 0 ° of direction is spent, S [1~4] d is the strain value in 45 ° of directions, and S [1~4] v is the strain value in 90 ° of directions.
The principle of the present invention are as follows: connecting plate 1 is connect with test model component, is mounted on test model specific location,
And cable is drawn by groove 2 and connects sensing element 5 and data collection system.Need before the test carry out rating test, and according to
The data of rating test make axle power increment-be averaged axial strain increment (the strain increment mean values in four strain rosettes, 90 ° of directions),
Shear increment-average shear strain increment (the shear strain increment mean value at two diagonal strain rosettes), moment of flexure increment-curvature increment
(the strain increment differences in two 90 ° of directions of diagonal strain rosette), torque increase-are averaged torsional strain increment (at four strain rosettes
Shear strain increment mean value) relation curve, slope is carry-over factor.When test, when structural internal force is transferred to elastomer 4
When, the stress and strain of elastomer 4 changes, and causes the internal resistance of sensing element 5 also to change, and with electric signal
Mode exports, and obtains corresponding strain data after processing, and object construction internal force is just obtained multiplied by carry-over factor.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (8)
1. a kind of Dynamic High-accuracy six-way force snesor, which is characterized in that the sensor includes elastomer, is connected on elastomer
The connecting plate of lower surface,
Groove is offered on the connecting plate,
The elastomer inner surface is pasted with sensing element, and the connecting line of the sensing element is drawn through the groove.
2. a kind of Dynamic High-accuracy six-way force snesor according to claim 1, which is characterized in that the elastomer and company
Fishplate bar is integral prefabricated component.
3. a kind of Dynamic High-accuracy six-way force snesor according to claim 1 or 2, which is characterized in that the elastomer
For homogeneous thin-wall tubular structure.
4. a kind of Dynamic High-accuracy six-way force snesor according to claim 3, which is characterized in that the sensing element is set
There are four, it is located at 0 ° in the middle part of elastomer inner periphery, 90 °, 180 ° and 270 °.
5. a kind of Dynamic High-accuracy six-way force snesor according to claim 4, which is characterized in that the sensing element is
Rectangular rosette.
6. a kind of Dynamic High-accuracy six-way force snesor according to claim 1, which is characterized in that the connecting plate is even
Matter opening plectane.
7. a kind of Dynamic High-accuracy six-way force snesor according to claim 6, which is characterized in that the connecting plate it is interior
Diameter is identical as the internal diameter of elastic plate.
8. a kind of Dynamic High-accuracy six-way force snesor according to claim 1, which is characterized in that on the connecting plate
It is furnished with several anchor holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663173.XA CN109000832A (en) | 2018-06-25 | 2018-06-25 | A kind of Dynamic High-accuracy six-way force snesor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810663173.XA CN109000832A (en) | 2018-06-25 | 2018-06-25 | A kind of Dynamic High-accuracy six-way force snesor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109000832A true CN109000832A (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810663173.XA Pending CN109000832A (en) | 2018-06-25 | 2018-06-25 | A kind of Dynamic High-accuracy six-way force snesor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932123A (en) * | 2019-03-22 | 2019-06-25 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Propeller single-blade leaf determination of six components of foree device |
| CN110118620A (en) * | 2019-05-22 | 2019-08-13 | 易众智慧科技(天津)有限公司 | A kind of intelligent steel support shaft pressure sensor and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737518A (en) * | 2005-07-27 | 2006-02-22 | 同济大学 | Sensibility variable load sensing unit |
| US20090241694A1 (en) * | 2008-03-25 | 2009-10-01 | Murata Manufacturing Co., Ltd. | Method for manufacturing external force detection device and external force detection device |
| CN204325905U (en) * | 2014-10-28 | 2015-05-13 | 中铁二院工程集团有限责任公司 | For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing |
| CN205333238U (en) * | 2016-01-05 | 2016-06-22 | 泰科思（深圳）传感器有限公司 | Compact structure answers sextuple force transducer of variant |
| CN106556488A (en) * | 2016-10-13 | 2017-04-05 | 同济大学 | A kind of strain-type six-dimension force sensor |
-
2018
- 2018-06-25 CN CN201810663173.XA patent/CN109000832A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737518A (en) * | 2005-07-27 | 2006-02-22 | 同济大学 | Sensibility variable load sensing unit |
| US20090241694A1 (en) * | 2008-03-25 | 2009-10-01 | Murata Manufacturing Co., Ltd. | Method for manufacturing external force detection device and external force detection device |
| CN204325905U (en) * | 2014-10-28 | 2015-05-13 | 中铁二院工程集团有限责任公司 | For the dynamometry elastic body of multidirectional dynamometry ball shaped steel bearing |
| CN205333238U (en) * | 2016-01-05 | 2016-06-22 | 泰科思（深圳）传感器有限公司 | Compact structure answers sextuple force transducer of variant |
| CN106556488A (en) * | 2016-10-13 | 2017-04-05 | 同济大学 | A kind of strain-type six-dimension force sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932123A (en) * | 2019-03-22 | 2019-06-25 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Propeller single-blade leaf determination of six components of foree device |
| CN109932123B (en) * | 2019-03-22 | 2020-10-16 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Propeller single-blade six-component measuring device |
| CN110118620A (en) * | 2019-05-22 | 2019-08-13 | 易众智慧科技(天津)有限公司 | A kind of intelligent steel support shaft pressure sensor and system |
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Application publication date: 20181214 |