CN211668680U - Strain gauge for two-dimensional force cylindrical sensor - Google Patents
Strain gauge for two-dimensional force cylindrical sensor Download PDFInfo
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- CN211668680U CN211668680U CN201922123984.3U CN201922123984U CN211668680U CN 211668680 U CN211668680 U CN 211668680U CN 201922123984 U CN201922123984 U CN 201922123984U CN 211668680 U CN211668680 U CN 211668680U
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Abstract
A strain gauge for a two-dimensional force cylindrical sensor comprises a substrate, wherein a first wire grid connecting part, a second wire grid connecting part, a third wire grid connecting part and a fourth wire grid connecting part are arranged on the substrate, the first wire grid connecting part, the second wire grid connecting part, the third wire grid connecting part and the fourth wire grid connecting part are mutually connected to form a Wheatstone bridge for measuring two-dimensional force, and the Wheatstone bridge is provided with a power line anode, a power line cathode, a signal output line anode and a signal output line cathode; the first wire grid connecting part comprises a first wire grid, the second wire grid connecting part comprises a second matched bridge wire grid, the third connecting part comprises a third wire grid, the fourth connecting part comprises a fourth matched bridge wire grid, and the orientations of the first wire grid, the second wire grid, the third wire grid and the fourth wire grid are different respectively. The utility model discloses an integration combination sets up, and it is convenient to have realized the paster, fixes a position accurate problem, makes the sensor of using unanimously good, the precision is high.
Description
Technical Field
The utility model relates to a strainometer, specifically speaking are strain measurement strainometer on mainly used measurement two dimension power cylinder formula sensor.
Background
The strain of the object is a very important geometrical parameter, and the accurate measurement of the strain is very important. A strain sensor is a type of sensor used to measure the strain produced by the deformation of an object under force. Resistive strain gauges are the most commonly used sensing elements. It is a sensing element that can convert changes in strain on a mechanical member into changes in resistance. Strain sensors are widely available in many types, including resistive, capacitive, piezoelectric, inductive, and optical, by principle. A resistive strain sensor. Strain gauges act as a measurement device on the sensor, which often determines the quality of the entire sensor. Different force measuring sensors are usually provided with strain gauges of different configurations. For example, when the sensor is used for measuring a two-dimensional force cylinder type sensor, a strain gauge mounted on the sensor often has the problem of difficult patch positioning, so that the measurement consistency of the sensor is poor, and the accuracy is not high enough.
Disclosure of Invention
The invention aims to provide a strain gauge for a two-dimensional cylindrical force sensor.
In order to solve the technical problems, the invention adopts the following technical scheme:
a strain gauge for a two-dimensional force cylindrical sensor comprises a substrate, wherein a first wire grid connecting part, a second wire grid connecting part, a third wire grid connecting part and a fourth wire grid connecting part are arranged on the substrate, the first wire grid connecting part, the second wire grid connecting part, the third wire grid connecting part and the fourth wire grid connecting part are mutually connected to form a Wheatstone bridge for measuring two-dimensional force, and the Wheatstone bridge is provided with a power line anode, a power line cathode, a signal output line anode and a signal output line cathode; the first wire grid connecting part comprises a first wire grid, the second wire grid connecting part comprises a second matched bridge wire grid, the third connecting part comprises a third wire grid, the fourth connecting part comprises a fourth matched bridge wire grid, and the orientations of the first wire grid, the second wire grid, the third wire grid and the fourth wire grid are different respectively.
The orientation direction of the first wire grid is opposite to that of the third wire grid, and the absolute value of the orientation angle is equal.
The first wire grid is 30-60 degrees in the negative direction, and the third wire grid is 30-60 degrees in the positive direction.
The first wire grid is 45 degrees negative, and the third wire grid is 45 degrees positive.
The second bridge wire grids are vertically arranged, and the fourth bridge wire grids are horizontally arranged.
The first wire grid, the second bridging wire grid, the third wire grid and the fourth bridging wire grid are sequentially arranged, and the first wire grid and the third wire grid are symmetrically arranged on two sides of the second bridging wire grid.
The first welding spot, the first wire grid and the fifth welding spot are sequentially connected to form a first wire grid connecting part, the first welding spot, the second bridge wire grid and the fourth welding spot are sequentially connected to form a second wire grid connecting part, the first welding spot, the third wire grid and the third welding spot are sequentially connected to form a third wire grid connecting part, and the first welding spot, the fourth bridge wire grid and the second welding spot are sequentially connected to form a fourth wire grid connecting part; the first welding point is a positive Wheatstone bridge power line, the first welding point is in short circuit with the second welding point and is a negative Wheatstone bridge power line, the third welding point is in short circuit with the fifth welding point and is a positive Wheatstone bridge signal output line, and the fourth welding point is a negative Wheatstone bridge signal output line.
The substrate is made of modified phenolic resin, constantan foils are arranged on the substrate to form a first wire grid, a second wire grid, a third wire grid and a fourth wire grid, and a modified phenolic resin film protective layer is further arranged on the substrate.
The utility model discloses an integration combination sets up, and it is convenient to have realized the paster, fixes a position accurate problem, makes the sensor of using unanimously good, the precision is high.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in the attached drawing 1, the utility model discloses a strainometer for two-dimensional force cylinder sensor, including the basement, be equipped with first wire grid connecting portion, second wire grid connecting portion, third wire grid connecting portion and fourth wire grid connecting portion on the basement, first wire grid connecting portion, second wire grid connecting portion, third wire grid connecting portion and fourth wire grid connecting portion interconnect and constitute the wheatstone bridge that is used for measuring two-dimensional force, and this wheatstone bridge has power cord positive pole, power cord negative pole, signal output line positive pole, signal output line negative pole; the first wire grid connecting part comprises a first wire grid 1, the second wire grid connecting part comprises a second bridging wire grid 2, the third connecting part comprises a third wire grid 3, the fourth connecting part comprises a fourth bridging wire grid 4, and the orientations of the first wire grid, the second wire grid, the third wire grid and the fourth wire grid are different respectively.
The orientation direction of the first wire grid 1 is opposite to that of the third wire grid 3, and the absolute value of the orientation angle is equal. Under the preferred circumstances, first silk bars 1 is negative 45 degrees to third silk bars 3 is positive 45 degrees, and first silk bars 1 and third silk bars 3 are the symmetry setting promptly, and second join in marriage bridge silk bars 2 is vertical arranges, and fourth join in marriage bridge silk bars 4 level arranges, the location overall arrangement of being convenient for, and the paster location is more convenient, saves the positioning process. The first wire grid, the second bridging wire grid, the third wire grid and the fourth bridging wire grid are sequentially arranged, and the first wire grid and the third wire grid are symmetrically arranged on two sides of the second bridging wire grid.
Of course, the above-mentioned angles are based on fig. 1, and when the angles are changed, the angles are also changed, but the angles are both centered on the second bridging wire grid, and the first wire grid and the third wire grid are symmetrically arranged on two sides of the second bridging wire grid in 45 degrees positive and negative directions.
The substrate is provided with a first welding spot 5, a second welding spot 6, a third welding spot 7, a fourth welding spot 8 and a fifth welding spot 9, the first welding spot 5, the first wire grid 1 and the fifth welding spot 9 are sequentially connected to form a first wire grid connecting part, the first welding spot 5, the second wire grid 2 and the fourth welding spot 8 are sequentially connected to form a second wire grid connecting part, the first welding spot 5, the third wire grid 3 and the third welding spot 7 are sequentially connected to form a third wire grid connecting part, and the first welding spot 5, the fourth wire grid 4 and the second welding spot 6 are sequentially connected to form a fourth wire grid connecting part; the first welding point is a positive level of a Wheatstone bridge power line, the first welding point is in short circuit with the second welding point and is a negative level of the Wheatstone bridge power line, the third welding point is in short circuit with the fifth welding point and is a positive level of a Wheatstone bridge signal output line, and the first welding point is a negative level of the Wheatstone bridge signal output line.
In this embodiment, the first solder joints, the second solder joints, the third solder joints, the fourth solder joints and the fifth solder joints are arranged in the same column, so that the structure is more compact. And then the first wire grid, the second wire grid, the third wire grid and the fourth wire grid arranged in the same row are combined, the whole structure is easy to mount, position and install, the mounting process is effectively saved, the efficiency is improved,
the substrate is made of modified phenolic resin, constantan foils are arranged on the substrate to form a first wire grid, a second wire grid, a third wire grid and a fourth wire grid, and a modified phenolic resin film protective layer is further arranged on the substrate.
During specific manufacturing, the constantan foil is pasted on a prefabricated titanium frame, then photoresist is thrown and dried, and after exposure, development and etching forming, precise resistance adjustment is carried out. And adding a protective film on the strain gauge with the adjusted resistance by using a modified phenolic resin film cover layer. And trimming the strain gauge with the protective film and sorting the resistance value to obtain the finished strain gauge.
The utility model discloses in, through the arrangement orientation of specific silk bars to by establishing the metal material constantan paper tinsel integration setting on the basement. The method is used for measuring the two-dimensional force cylinder type sensor, and can effectively improve the consistency of the sensitivity of the sensor and improve the measurement precision.
Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements, and the like can be made in the technical solutions of the foregoing embodiments or in some of the technical features of the foregoing embodiments, but those modifications, equivalents, improvements, and the like are all within the spirit and principle of the present invention.
Claims (8)
1. The strain gauge for the two-dimensional force cylindrical sensor comprises a substrate and is characterized in that a first wire grid connecting part, a second wire grid connecting part, a third wire grid connecting part and a fourth wire grid connecting part are arranged on the substrate, the first wire grid connecting part, the second wire grid connecting part, the third wire grid connecting part and the fourth wire grid connecting part are mutually connected to form a Wheatstone bridge for measuring two-dimensional force, and the Wheatstone bridge is provided with a power line anode, a power line cathode, a signal output line anode and a signal output line cathode;
the first wire grid connecting part comprises a first wire grid, the second wire grid connecting part comprises a second matched bridge wire grid, the third connecting part comprises a third wire grid, the fourth connecting part comprises a fourth matched bridge wire grid, and the orientations of the first wire grid, the second wire grid, the third wire grid and the fourth wire grid are different respectively.
2. The strain gage of claim 1 wherein the first wire grating and the third wire grating are oriented in opposite directions and the absolute values of the angles of orientation are equal.
3. The strain gage of claim 2 wherein the first wire grating is 30-60 degrees negative and the third wire grating is 30-60 degrees positive.
4. The strain gage of claim 3 wherein the first wire grating is 45 degrees negative and the third wire grating is 45 degrees positive.
5. The strain gage of claim 4, wherein the second wire grid is arranged vertically and the fourth wire grid is arranged horizontally.
6. The strain gauge as claimed in claim 5, wherein the first wire grating, the second wire grating, the third wire grating and the fourth wire grating are arranged in sequence, and the first wire grating and the third wire grating are symmetrically arranged on two sides of the second wire grating.
7. The strain gauge for the two-dimensional force cylinder sensor according to claim 6, wherein the substrate is provided with a first welding spot, a second welding spot, a third welding spot, a fourth welding spot and a fifth welding spot, the first wire grid and the fifth welding spot are sequentially connected to form a first wire grid connecting portion, the first welding spot, the second bridge wire grid and the fourth welding spot are sequentially connected to form a second wire grid connecting portion, the first welding spot, the third wire grid and the third welding spot are sequentially connected to form a third wire grid connecting portion, and the first welding spot, the fourth bridge wire grid and the second welding spot are sequentially connected to form a fourth wire grid connecting portion;
the first welding point is a positive Wheatstone bridge power line, the first welding point is in short circuit with the second welding point and is a negative Wheatstone bridge power line, the third welding point is in short circuit with the fifth welding point and is a positive Wheatstone bridge signal output line, and the fourth welding point is a negative Wheatstone bridge signal output line.
8. The strain gauge of claim 7, wherein the substrate is made of modified phenolic resin, constantan foil is disposed on the substrate to form a first wire grid, a second wire grid, a third wire grid, and a fourth wire grid, and a protective layer of modified phenolic resin film is further disposed on the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123984.3U CN211668680U (en) | 2019-12-02 | 2019-12-02 | Strain gauge for two-dimensional force cylindrical sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922123984.3U CN211668680U (en) | 2019-12-02 | 2019-12-02 | Strain gauge for two-dimensional force cylindrical sensor |
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| Publication Number | Publication Date |
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| CN211668680U true CN211668680U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922123984.3U Active CN211668680U (en) | 2019-12-02 | 2019-12-02 | Strain gauge for two-dimensional force cylindrical sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833770A (en) * | 2021-02-26 | 2021-05-25 | 中航电测仪器股份有限公司 | Compound full-bridge strain gauge |
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2019
- 2019-12-02 CN CN201922123984.3U patent/CN211668680U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833770A (en) * | 2021-02-26 | 2021-05-25 | 中航电测仪器股份有限公司 | Compound full-bridge strain gauge |
| CN112833770B (en) * | 2021-02-26 | 2022-12-13 | 中航电测仪器股份有限公司 | Compound full-bridge strain gauge |
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