CN207280367U - Mesh sensor - Google Patents
Mesh sensor Download PDFInfo
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- CN207280367U CN207280367U CN201721349158.5U CN201721349158U CN207280367U CN 207280367 U CN207280367 U CN 207280367U CN 201721349158 U CN201721349158 U CN 201721349158U CN 207280367 U CN207280367 U CN 207280367U
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- sensitive material
- sensing layer
- layer
- netted
- netted sensing
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- 239000000463 material Substances 0.000 claims abstract description 69
- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000009422 external insulation Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 36
- 239000010408 film Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 239000011888 foil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a kind of mesh sensor, including：At least one layer of netted sensing layer, every layer of netted sensing layer includes being cross-woven latticed multiple sensitive materials, and film matrix, in every layer of netted sensing layer, multiple sensitive materials are solidificated on film matrix, the netted sensing layer includes several power supply terminals and several signal terminals being connected with the sensitive material for being connected with the sensitive material, Physical Quantity Field measurement is carried out from the output voltage ordered series of numbers on signal terminal from the input voltage ordered series of numbers on power supply terminal and the measurement of some groups of linear independences by the measurement of some groups of linear independences, the sensitive material includes at least power or deformation sensitive material.When the utility model causes measurement structure surface strain field or other Physical Quantity Fields, signal wire is drawn without in all nodes, strain range ability is big, easy to manufacture and install, calibration is simple, cost is relatively low.
Description
Technical field
It the utility model is related to strain field sensor correlative technology field, particularly a kind of mesh sensor.
Background technology
Existing structure surface strain field measurement is mostly using the method for pasting foil gauge or optical measurement.Foil gauge is only capable of
To the strain of single-point or part, need during measuring strain field it is a large amount of paste foil gauges, and need per uniaxial strain piece to draw two
Connector, installation difficulty is high and efficiency is low.The method instrument cost of optical measurement is high and tested person environment influences greatly.
Utility model content
Based on this, it is necessary to for technical problem existing for prior art measuring strain field, there is provided a kind of mesh sensor.
The utility model provides a kind of mesh sensor, including：At least one layer of netted sensing layer, every layer of netted sensing
Layer includes being cross-woven latticed multiple sensitive materials and film matrix, in every layer of netted sensing layer, Duo Gesuo
State sensitive material to be solidificated on film matrix, the netted sensing layer includes several power ends being connected with the sensitive material
Son and several signal terminals being connected with the sensitive material, the sensitive material include at least power or deformation sensitive material.
Further, multiple sensitive materials contact with each other conduction in crossover node.
Further, the multiple sensitive material with resin solidification on film matrix and and external insulation.
Further, the sensitive material is electrically connected in network edge with the power supply terminal and the signal terminal, institute
State power supply terminal and signal terminal is electrically connected with external circuitry.
Further, including the multilayer laminated netted sensing layer, the sensitive material of every layer of netted sensing layer
Material is contacted with the film matrix of netted sensing layer described in upper strata, and the film matrix of every layer of netted sensing layer is with
The sensitive material contact of the layer netted sensing layer.
Further, the sensitive material may also include：Temperature-sensitive material, humidity sensitive material or salinity are sensitive
Material.
Further, the sensitive material of netted sensing layer described in same layer is identical.
The utility model is by being cross-woven latticed multiple sensitive materials so that measurement structure surface strain field or
During other Physical Quantity Fields, signal wire is drawn without in all nodes, range ability is big, easy to manufacture and install, calibration is simple, makes
Valency is relatively low.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of mesh sensor；
Fig. 2 is the application schematic diagram of mesh sensor；
Fig. 3 is the instrumentation plan of mesh sensor；
Fig. 4 is main strain calculation schematic diagram；
Fig. 5 a are the grid schematic diagram of the mesh sensor of one embodiment of the utility model；
Fig. 5 b are the grid schematic diagram of the mesh sensor of another embodiment of the utility model；
Fig. 5 c are the grid schematic diagram of the mesh sensor of the utility model another embodiment；
Fig. 6 is the netted sensing layer stackup schematic diagram of the utility model mesh sensor.
Embodiment
The utility model is described in more detail with specific embodiment below in conjunction with the accompanying drawings.
It is a kind of structure diagram of mesh sensor as shown in Figure 1, including：At least one layer of netted sensing layer, every layer of institute
Stating netted sensing layer includes being cross-woven latticed multiple sensitive materials 1 and film matrix 2, every layer of netted biography
Feel in layer, multiple sensitive materials 1 are solidificated on film matrix 2, and two netted sensing layers, which are used as to contain, includes two bags
The power supply terminal 6 and several signal terminals 5 being connected with the sensitive material being connected containing several with the sensitive material, institute
State sensitive material and include at least power or deformation sensitive material.
Specifically, the chosen position of signal terminal and quantity are not fixed, and can be chosen according to demarcating and installing needs,
It is self-confident from the measurement of the input voltage ordered series of numbers on power supply terminal and some groups of linear independences by the measurement of some groups of linear independences
Output voltage ordered series of numbers on number terminal carries out Physical Quantity Field measurement.
Fig. 1 is by taking measuring strain field as an example, it will be understood by those skilled in the art that the mesh sensor can also measure
Other Physical Quantity Fields.
As shown in Fig. 2, sensor 9 described in the utility model is pasted on body structure surface, is drawn and measured by signal wire 8
Instrument 7 communicates to connect, when structure stress and after cause each position of structure to be deformed, power or deformation sensitive in sensor 9
Material can be also deformed, and it is related to strain of the structure at the position that it deforms size.
As shown in Figure 3, whole network forms a complicated resistance series-parallel circuit, the material between each two adjacent node
Material deformation can cause circuitous resistance to change, and after control source connector provides constant voltage, proving operation is carried out to sensor,
The strain value vector obtained in each proving operation when multiple nodes strain is vectorial as strain value while defeated from signal
Go out the corresponding output voltage values (i.e. output voltage ordered series of numbers) of connector acquisition and be used as output voltage values, according to the institute of multilayer proving operation
State electrostrictive strain of the corresponding output voltage values foundation of strain value vector sum on strain value vector and output voltage values relation
Pressing mold type；
When the sensing layer uses the deformation sensitive Materials Measurement strain field, output electricity is obtained from signal output connector
The current output voltage value is inputted the compliance voltage model, accordingly should obtained by pressure value as current output voltage value
Strain value is vectorial as a result for variate vector；
The principal strain of each node is determined according to result strain value vector.
The utility model is by being cross-woven latticed multiple sensitive materials so that measurement structure surface strain field
When, signal wire is drawn without in all strain nodes, strain range ability is big, easy to manufacture and install, calibration is simple, cost phase
To more low.
In one of the embodiments, multiple sensitive materials contact with each other conduction in crossover node.
In one of the embodiments, the multiple sensitive material with resin solidification on film matrix and with the external world
Insulation.
In one of the embodiments, sensitive material includes power supply terminal and signal terminal, the power supply in network edge
Terminal and signal terminal are electrically connected with external circuitry.
In one of the embodiments, including the multilayer laminated netted sensing layer, every layer of netted sensing layer
The sensitive material is contacted with the film matrix of netted sensing layer described in upper strata, every layer of netted sensing layer it is described thin
Film matrix is contacted with the sensitive material of netted sensing layer described in lower floor.
Specifically, film matrix and grid can alternate multiple be laid with, each interlayer grid configuration can be not quite similar.Grid can
To there is a variety of grid configurations, as shown in Fig. 5 a~5c, to meet various test needs.
In one of the embodiments, the sensitive material further includes：Temperature-sensitive material, humidity sensitive material or salt
Spend sensitive material.
In one of the embodiments, the sensitive material of netted sensing layer described in same layer is identical.
Specifically：
As shown in Figure 3, whole network forms a complicated resistance series-parallel circuit, the material between each two adjacent node
Material deformation can cause circuitous resistance to change, and constant voltage is provided in control source connector, be connect if measuring sensor signal output
Head voltage be respectively
U=[U1,U2,U3,...,Un]；
Strain between each adjacent node at this time is
ε=[ε1,ε2,ε3,...,εi]；
And meeting n × m≤i, wherein n is signal output connector quantity, and i is the quantity for the diverse location that strain produces, and m is
Demarcate sample size, then can opening relationships formula
ε=kU+b.
During transducer calibration, the output voltage values U and corresponding strain vector ε of m group linear independences, order are obtained
Wherein UjFor j-th output voltage values U, εjFor j-th of strain vector ε.
According to the basic principle of least square method, local derviation is asked to k and b respectively and makes partial derivative be equal to 0, when sample number m foots
When more than enough, the value of k and b can be respectively obtained by substituting into voltage and strain：
Calibration finishes i.e. available strain calculation expression formulas of the formula ε=kU+b as the sensor use of time.As shown in figure 4,
Can be according to the normal strain ε on 3 different directions of node1,ε2,ε3Value and strain angle theta calculate each node principal strain.
Grid can have a variety of grid configurations, as shown in figure 5, to meet various test needs.
Signal connector, which draws quantity, can be much smaller than measuring node number, require, can be drawn at edge as long as meeting that calibration is minimum
Signal wire, grid intermediate node need not draw signal wire, reduce difficulty from manufacturing above and installing.
Film matrix and grid can alternate multiple be laid with, as shown in fig. 6, each interlayer grid configuration can be not quite similar.Each layer
It is changed to such as temperature deformation sensitive material or other materials completes different test functions, such as temperature, pressure, humidity.Examine
Considering some special sensitive materials may need special matrix to be distinguished by, can be as needed such as temperature-sensitive material
Increase the matrix 10 of high heat conduction.
When measuring temperature, temperature causes structure expansion or shrinkage, causes strain, i.e. temperature deformation, causes with measuring force
Strain similar.When measuring humidity, salinity, since humidity salinity is not deformed into, grid material can be changed to humidity salinity-electricity
Sensitive material is hindered, i.e. humidity salinity altercation directly causes resistance variations, so as to measure.
Embodiment described above only expresses the several embodiments of the utility model, its description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
- A kind of 1. mesh sensor, it is characterised in that including：At least one layer of netted sensing layer, every layer of netted sensing layer bag Include and be cross-woven latticed multiple sensitive materials and film matrix, it is multiple described quick in every layer of netted sensing layer Feel material solidification on film matrix, the netted sensing layer include several power supply terminals for being connected with the sensitive material and Several signal terminals being connected with the sensitive material, the sensitive material include at least power or deformation sensitive material.
- 2. mesh sensor according to claim 1, it is characterised in that multiple sensitive materials are mutual in crossover node Contact is conductive.
- 3. mesh sensor according to claim 1, it is characterised in that the multiple sensitive material is with resin solidification On film matrix and and external insulation.
- 4. mesh sensor according to claim 1, it is characterised in that the sensitive material is in network edge and the electricity Source terminal and the signal terminal are electrically connected, and the power supply terminal and signal terminal are electrically connected with external circuitry.
- 5. mesh sensor according to claim 1, it is characterised in that including the multilayer laminated netted sensing layer, The sensitive material of every layer of netted sensing layer is contacted with the film matrix of netted sensing layer described in upper strata, every layer of institute The film matrix for stating netted sensing layer is contacted with the sensitive material of netted sensing layer described in lower floor.
- 6. according to Claims 1 to 5 any one of them mesh sensor, the sensitive material further includes：Temperature-sensitive material, Humidity sensitive material or salinity sensitive material.
- 7. mesh sensor according to claim 6, it is characterised in that the sensitivity of netted sensing layer described in same layer Material identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721349158.5U CN207280367U (en) | 2017-10-17 | 2017-10-17 | Mesh sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721349158.5U CN207280367U (en) | 2017-10-17 | 2017-10-17 | Mesh sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207280367U true CN207280367U (en) | 2018-04-27 |
Family
ID=61980770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721349158.5U Expired - Fee Related CN207280367U (en) | 2017-10-17 | 2017-10-17 | Mesh sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207280367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521107A (en) * | 2020-05-08 | 2020-08-11 | 武汉科技大学 | Multi-axis/field carbon fiber strain sensor and application method thereof |
| CN114279312A (en) * | 2021-12-30 | 2022-04-05 | 中国科学院力学研究所 | High-sensitivity braided strain sensor and preparation method thereof |
-
2017
- 2017-10-17 CN CN201721349158.5U patent/CN207280367U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521107A (en) * | 2020-05-08 | 2020-08-11 | 武汉科技大学 | Multi-axis/field carbon fiber strain sensor and application method thereof |
| CN114279312A (en) * | 2021-12-30 | 2022-04-05 | 中国科学院力学研究所 | High-sensitivity braided strain sensor and preparation method thereof |
| CN114279312B (en) * | 2021-12-30 | 2023-01-31 | 中国科学院力学研究所 | High-sensitivity braided strain sensor and preparation method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 |