CN203940941U - A kind of stress distribution test foil gauge array - Google Patents
A kind of stress distribution test foil gauge array Download PDFInfo
- Publication number
- CN203940941U CN203940941U CN201420355513.XU CN201420355513U CN203940941U CN 203940941 U CN203940941 U CN 203940941U CN 201420355513 U CN201420355513 U CN 201420355513U CN 203940941 U CN203940941 U CN 203940941U
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- sensitive grid
- array
- cell array
- foil gauge
- grid cell
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to unrelieved stress technical field of measurement and test, discloses a kind of stress distribution test and has used foil gauge array, comprising: substrate, sensitive grid cell array, extension line and overlayer; The sensitive grid cell array that described sensitive grid cell array is N × M; The described sensitive grid unit tail that is array distribution is connected with described extension line; Described overlayer is coated in described substrate and described sensitive grid cell array; N and M are greater than 1 integer.The utility model, by lay the multiple sensitive grids unit that is array distribution on same substrate, detects the stress distribution in certain limit, has greatly promoted the measuring accuracy of stress distribution, has simplified measurement procedure.
Description
Technical field
The utility model relates to technical field of measurement and test, particularly a kind of stress distribution test foil gauge array.
Background technology
The technology of utilizing foil gauge to carry out unrelieved stress test is widely used.Resistance strain gage also claims strain ga(u)ge, is called for short foil gauge or strainometer, is the element that is configured for monitor strain by sensitive grid etc.It can be converted to resistance variations by the variation of strain on mechanical component.Resistance strain gage is to be coiled into palisade (or with very thin metal forming corrode into palisade) by the constantan wire of Φ=0.02～0.05mm or nickel filament to be clipped in (substrate) in two-layer heat insulating lamella and to make.The measuring principle of resistance strain gage is: resistance value wiry is except relevant with the character of material, and also, with length wiry, cross-sectional area is relevant.Tinsel is sticked on member, and in the time that member stress is out of shape, length wiry and cross-sectional area also change along with member one, and then resistance variations occurs.
In the time carrying out the test of product stress distribution, the some position of General Requirements test is more, if adopt traditional single foil gauge to measure, needs each position to position one by one, and polishing, pastes foil gauge, welding, all multiple operation such as test.Test process is loaded down with trivial details, inefficiency.In addition, the consistance of the location accuracy between each test point and experiment pre-treatment is all difficult to ensure, makes the degree of accuracy of final stress distribution result lower.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of stress distribution measuring accuracy that improves, the stress distribution test foil gauge array of simplified measurement operation.
For solving the problems of the technologies described above, the utility model provides a kind of stress distribution test to use foil gauge array, comprising: substrate, sensitive grid cell array, extension line and overlayer; Described sensitive grid cell array is laid on described substrate; The sensitive grid cell array that described sensitive grid cell array is N × M; The space D y of the arbitrary neighborhood two row sensitive grid unit of described sensitive grid cell array equates; The space D x of the arbitrary neighborhood two row sensitive grid unit of described sensitive grid cell array equates; The described sensitive grid unit tail that is array distribution is connected with described extension line; Described overlayer is coated in described substrate and described sensitive grid cell array.
Further, the thickness of described substrate is 0.02mm～0.04mm.
Further, described sensitive grid unit comprises: a horizontal direction sensitive grid, a vertical direction sensitive grid and a sensitive grid being positioned on both angle center lines; The center line of described three sensitive grids meets at a bit.
The stress distribution test that the utility model provides adopts multiple foil gauge cell arrays that are array distribution to be laid on substrate with foil gauge array, can stick on to be measured by disposable integral from realizing foil gauge unit; Ensure on the one hand the spacing uniformity between the foil gauge unit of adjacent lines in foil gauge array or adjacent columns, fundamentally ensured the accuracy of location; Because each foil gauge unit is positioned on same substrate, its test pre-treatment is in full accord, only need once polish, pastes, welding sequence, and conventional efficient significantly improves.
Brief description of the drawings
The stress distribution test that Fig. 1 provides for the utility model embodiment structural representation of foil gauge array.
Embodiment
Referring to Fig. 1, foil gauge array is used in a kind of stress distribution test that the utility model embodiment provides, and comprising: substrate, sensitive grid cell array, extension line and overlayer; Sensitive grid cell array is laid on substrate; Can stick on to be measured by disposable integral from realizing foil gauge unit, only need once polish, paste, welding sequence, conventional efficient significantly improves; Sensitive grid cell array is the sensitive grid cell array of N × M; The space D y of the arbitrary neighborhood two row sensitive grid unit of sensitive grid cell array equates; The space D x of the arbitrary neighborhood two row sensitive grid unit of sensitive grid cell array equates; Ensure the spacing uniformity between the foil gauge unit of adjacent lines in foil gauge array or adjacent columns, fundamentally ensured the accuracy of location, promoted the precision of stress measurement; The sensitive grid unit tail that is array distribution is connected with extension line; Overlayer is coated in substrate and sensitive grid cell array.
Substrate plays a part test specimen strain to pass to exactly sensitive grid, and substrate must be very thin for this reason; Preferably, the thickness of substrate is 0.02mm～0.04mm; Ensureing, under the prerequisite of substrate firmness degree, to ensure strain transfer efficiency.
Sensitive grid unit comprises: a horizontal direction sensitive grid, a vertical direction sensitive grid and a sensitive grid being positioned on both angle center lines; The center line of three sensitive grids meet at a bit.Thereby ensure that the data acquisition of foil gauge, in same reference coordinate system, ensures the accurate shape of data.
The stress distribution test that the utility model embodiment provides adopts multiple foil gauge cell arrays that are array distribution to be laid on substrate with foil gauge array, can stick on to be measured by disposable integral from realizing foil gauge unit; Ensure on the one hand the spacing uniformity between the foil gauge unit of adjacent lines in foil gauge array or adjacent columns, fundamentally ensured the accuracy of location; Because each foil gauge unit is positioned on same substrate, its test pre-treatment is in full accord, only need once polish, pastes, welding sequence, and conventional efficient significantly improves.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a foil gauge array is used in stress distribution test, it is characterized in that, comprising: substrate, sensitive grid cell array, extension line and overlayer; Described sensitive grid cell array is laid on described substrate; The sensitive grid cell array that described sensitive grid cell array is N × M; The space D y of the arbitrary neighborhood two row sensitive grid unit of described sensitive grid cell array equates; The space D x of the arbitrary neighborhood two row sensitive grid unit of described sensitive grid cell array equates; The described sensitive grid unit tail that is array distribution is connected with described extension line; Described overlayer is coated in described substrate and described sensitive grid cell array, and wherein N, M are greater than 1 positive integer.
2. foil gauge array is used in stress distribution test as claimed in claim 1, it is characterized in that: the thickness of described substrate is 0.02mm～0.04mm.
3. foil gauge array is used in stress distribution test as claimed in claim 1, it is characterized in that, described sensitive grid unit comprises: a horizontal direction sensitive grid, a vertical direction sensitive grid and a sensitive grid being positioned on both angle center lines; The center line of described three sensitive grids meets at a bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355513.XU CN203940941U (en) | 2014-06-27 | 2014-06-27 | A kind of stress distribution test foil gauge array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355513.XU CN203940941U (en) | 2014-06-27 | 2014-06-27 | A kind of stress distribution test foil gauge array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940941U true CN203940941U (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420355513.XU Expired - Fee Related CN203940941U (en) | 2014-06-27 | 2014-06-27 | A kind of stress distribution test foil gauge array |
Country Status (1)
| Country | Link |
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| CN (1) | CN203940941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333015A (en) * | 2019-07-31 | 2019-10-15 | 浙江荷清柔性电子技术有限公司 | Strain Distribution measuring circuit based on foil gauge |
| CN112179310A (en) * | 2019-07-02 | 2021-01-05 | 中兴通讯股份有限公司 | Processing method and device for Printed Circuit Board (PCB) |
-
2014
- 2014-06-27 CN CN201420355513.XU patent/CN203940941U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179310A (en) * | 2019-07-02 | 2021-01-05 | 中兴通讯股份有限公司 | Processing method and device for Printed Circuit Board (PCB) |
| CN110333015A (en) * | 2019-07-31 | 2019-10-15 | 浙江荷清柔性电子技术有限公司 | Strain Distribution measuring circuit based on foil gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170725 Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Friendship Avenue, Hubei, Wuhan, No. 999 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| 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: 20141112 Termination date: 20180627 |