CN102252588B - Spring piece for sensor - Google Patents
Spring piece for sensor Download PDFInfo
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- CN102252588B CN102252588B CN201110088934.1A CN201110088934A CN102252588B CN 102252588 B CN102252588 B CN 102252588B CN 201110088934 A CN201110088934 A CN 201110088934A CN 102252588 B CN102252588 B CN 102252588B
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- plate
- flat plate
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- spring piece
- spring leaf
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Abstract
The invention discloses a spring piece for a sensor. The spring piece is bent into a W shape which is provided with an upper flat plate and a lower flat plate and is integrally formed by connecting the end part of the upper flat plate, the end part of the lower flat plate, and folded plates, and a rectangular through hole alpha is processed on each folded plate. Under the condition of relatively large displacement ratio, the W-shaped spring piece with the structure has high linearity; the spring piece has a reasonable design, high sensitivity, low linearity error, high antijamming capability and stability, wide application range and the like and is easy to calibrate, and can be used on a double-cantilever large-deformation strain measurement sensor.
Description
Technical field
The invention belongs to the sensor technical field of measuring relative displacement, be specifically related to the spring leaf using in a kind of strain gauge sensors.
Background technology
At engineering field, the large deformation problem that often needs research material and structure, during such as mechanical property at research engineering material, after material production surrender, its relative deformation is all larger, the measuring method generally adopting is at present that plastic strain sheet is directly sticked on test specimen, and owing to being subject to the many factors such as the performance of glue and environment temperature and ambient humidity for technology for applying, foil gauge performance, paster, measurement effect is often very undesirable.In addition, when the mechanical property of research masonry structure, need to measure the distortion of building block, the building block dimensioning adopting due to structure is in difference, according to masonry related specifications, to measure gauge length and generally from centimetre-sized to meter level, change, deflection is larger, the measuring method that main employing support and dial gauge or clock gauge combine at present, but this method is difficult to survey (as stone arch bridge loading test) on works.
The patent No. is 200320109969.X, denomination of invention is the Chinese patent of the two cantilever concrete structure strain measurement meter > > of < <, a kind of structural strain meter is disclosed, adopt one end and the strain transducer of strain bar to be connected, the other end and bearing are connected, the strain measurement meter of this structure, on-the-spot test through laboratory and bridge construction thing, prove that it has highly sensitive, signal stabilization, the advantage such as easy to use, but this strain measurement meter is due to its reasons in structure, only can measure the strain (small deformation) in elastic range of structure or test specimen, cannot measure the large deformation of structure or test specimen.Therefore the development of large deformation strain transducer is that engineering strain technical field of measurement and test is badly in need of the technical matters solving.
For solving the problems of the technologies described above, the present inventor has developed two cantilever large deformation strain gauge sensors, and the urgent technical matters solving of the current need of this sensor is to provide the spring leaf of the sensor that a kind of remolding sensitivity is higher.
Summary of the invention
Technical matters to be solved by this invention be for two cantilever large deformation strain gauge sensors provide a kind of highly sensitive, be easy to demarcate, linear error is little, antijamming capability is strong, the spring leaf of good stability, sensor applied widely.
Solving the problems of the technologies described above adopted technical scheme is: it be by spring leaf be bent into there is upper flat plate, lower flat board and upper flat plate end and lower dull and stereotyped end and flap are connected as a single entity and form W shape, on flap, be processed with rectangular through-hole a.
Flap of the present invention is: with upper flat plate angle α be 20 °～70 ° upper side plane plate and with downside surface plate that the angle β of lower flat board is 20 °～70 ° formation that is connected as a single entity, rectangular through-hole a is positioned on upper side plane plate and downside surface plate.
Downside surface plate of the present invention equates with the angle α between upper flat plate with angle β and upper side plane plate between lower flat board.
Rectangular through-hole a of the present invention is positioned at the both sides of upper side plane plate and downside surface plate intersection, and symmetrical with intersection.
Upper flat plate of the present invention parallels with lower flat board.
The thickness of spring leaf of the present invention is 0.2～1.0mm.
W shape spring leaf of the present invention is in the situation that displacement is larger, still there is good linearity, that the present invention has is reasonable in design, highly sensitive, be easy to demarcate, linear error is little, antijamming capability is strong, good stability, the advantage such as applied widely, can in two cantilever large deformation strain gauge sensors, use.
Accompanying drawing explanation
Fig. 1 is the deployed configuration schematic diagram of the embodiment of the present invention 1.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the right view of Fig. 2
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in more detail with each embodiment, but the invention is not restricted to these embodiment.
In Fig. 1,2,3,4, the Rectangular Spring sheet bending that the spring leaf of the sensor of the present embodiment is processed with rectangular through-hole a by centre forms, the thickness of spring leaf is 0.4mm, after the bending of this Rectangular Spring sheet, form there is upper flat plate 1, lower dull and stereotyped 2 and W shape structure that the flap that upper flat plate 1 end and lower dull and stereotyped 2 ends are connected as a single entity is formed, upper flat plate 1 is parallel to each other with lower dull and stereotyped 2.The flap of the present embodiment is connected as a single entity and is formed by upper side plane plate 3 and downside surface plate 4, and the angle α between upper side plane plate 3 and upper flat plate 1 is 45 °, and the angle β between downside surface plate 4 and lower dull and stereotyped 2 is 45 °.Half of rectangular through-hole a is positioned on upper side plane plate 3, second half is positioned on downside surface plate 4, and rectangular through-hole a is symmetrical with the intersection of downside surface plate 4 about upper side plane plate 3.The spring leaf of the sensor of this structure, is suitable for using on the larger displacement transducer of displacement.
In an embodiment, the angle α between upper side plane plate 3 and upper flat plate 1 is 20 °, and the angle β between downside surface plate 4 and lower dull and stereotyped 2 is 20 °, and rectangular through-hole a is identical with embodiment 1 in the position of upper side plane plate 3 and downside surface plate 4.The connecting relation of other parts and parts is identical with embodiment 1.
In an embodiment, the angle α between upper side plane plate 3 and upper flat plate 1 is 70 °, and the angle β between downside surface plate 4 and lower dull and stereotyped 2 is 70 °, and rectangular through-hole a is identical with embodiment 1 in the position of upper side plane plate 3 and downside surface plate 4.The connecting relation of other parts and parts is identical with embodiment 1.
In above embodiment 1～3, the thickness of spring leaf is 0.2mm, angle α between upper side plane plate 3 and upper flat plate 1, the angle β between downside surface plate 4 and lower dull and stereotyped 2 is identical with corresponding embodiment, and the connecting relation of other parts and parts is identical with embodiment 1.
Embodiment 5
In above embodiment 1～3, the thickness of spring leaf is 1.0mm, angle α between upper side plane plate 3 and upper flat plate 1, the angle β between downside surface plate 4 and lower dull and stereotyped 2 is identical with corresponding embodiment, and the connecting relation of other parts and parts is identical with embodiment 1.
Claims (5)
1. the spring leaf of a sensor, it is be bent into have upper flat plate (1), lower flat board (2) and upper flat plate (1) end and lower flat board (2) end and flap are connected as a single entity and form W shape by spring leaf, on flap, be processed with rectangular through-hole (a), it is characterized in that: said rectangular through-hole (a) is positioned at the both sides of upper side plane plate (3) and downside surface plate (4) intersection, and symmetrical with intersection.
2. according to the spring leaf of sensor claimed in claim 1, it is characterized in that said flap is: with upper flat plate (1) angle (α) be 20 °～70 ° upper side plane plate (3) and with downside surface plate (4) that the angle (β) of lower flat board (2) is 20 °～70 ° formation that is connected as a single entity, rectangular through-hole (a) is positioned on upper side plane plate (3) and downside surface plate (4).
3. according to the spring leaf of sensor claimed in claim 2, it is characterized in that: said downside surface plate (4) equates with the angle (α) between upper flat plate (1) with angle (β) and upper side plane plate (3) between lower flat board (2).
4. according to the spring leaf of the sensor described in claim 1 or 2 or 3, it is characterized in that: said upper flat plate (1) parallels with lower flat board (2).
5. according to the spring leaf of sensor claimed in claim 1, it is characterized in that: the thickness of said spring leaf is 0.2～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110088934.1A CN102252588B (en) | 2011-04-08 | 2011-04-08 | Spring piece for sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110088934.1A CN102252588B (en) | 2011-04-08 | 2011-04-08 | Spring piece for sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252588A CN102252588A (en) | 2011-11-23 |
| CN102252588B true CN102252588B (en) | 2014-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110088934.1A Expired - Fee Related CN102252588B (en) | 2011-04-08 | 2011-04-08 | Spring piece for sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102252588B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767895B (en) * | 2012-05-09 | 2014-07-09 | 中国扬子集团滁州扬子空调器有限公司 | Air conditioner used thin finned tube heat exchanger |
| CN110672120B (en) * | 2019-09-09 | 2021-04-27 | 武汉元生创新科技有限公司 | Device calibration device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091680A (en) * | 1975-06-16 | 1978-05-30 | Diax | Force transducer having a linear transfer characteristic |
| CN1724972A (en) * | 2004-07-20 | 2006-01-25 | 三丰株式会社 | Elastic fixture and attachment method for length measuring apparatus |
| CN202024753U (en) * | 2011-04-08 | 2011-11-02 | 长安大学 | Spring leaf of sensor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2451856A1 (en) * | 1974-10-31 | 1976-05-06 | Siemens Ag | Force measurement transducer - has measurement spring directly or indirectly deflected and electric pick-up for display |
| CN2116893U (en) * | 1992-03-31 | 1992-09-23 | 上海东昌大和衡器有限公司 | Hand electronic balance |
| JPH10267766A (en) * | 1997-03-24 | 1998-10-09 | Meisei Electric Co Ltd | Load detector and its mounting structure |
-
2011
- 2011-04-08 CN CN201110088934.1A patent/CN102252588B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091680A (en) * | 1975-06-16 | 1978-05-30 | Diax | Force transducer having a linear transfer characteristic |
| CN1724972A (en) * | 2004-07-20 | 2006-01-25 | 三丰株式会社 | Elastic fixture and attachment method for length measuring apparatus |
| CN202024753U (en) * | 2011-04-08 | 2011-11-02 | 长安大学 | Spring leaf of sensor |
Non-Patent Citations (2)
| Title |
|---|
| 张治军等.弹簧式光纤传感器工作机理及应用.《水力发电》.2008,(第08期), |
| 弹簧式光纤传感器工作机理及应用;张治军等;《水力发电》;20080812(第08期);全文 * |
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| CN102252588A (en) | 2011-11-23 |
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Granted publication date: 20140129 Termination date: 20150408 |
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