CN203881466U - Pressure sensor adopting novel beam structure - Google Patents
Pressure sensor adopting novel beam structure Download PDFInfo
- Publication number
- CN203881466U CN203881466U CN201420269092.9U CN201420269092U CN203881466U CN 203881466 U CN203881466 U CN 203881466U CN 201420269092 U CN201420269092 U CN 201420269092U CN 203881466 U CN203881466 U CN 203881466U
- Authority
- CN
- China
- Prior art keywords
- groove section
- groove
- elastic body
- pressure transducer
- extension
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pressure sensor adopting a novel beam structure. The pressure sensor comprises an elastic body, a strain gauge adhered with the elastic body and connecting leads connected with the strain gauge, wherein the elastic body is a sheet-like elastic body, the elastic body is provided with a groove penetrating the elastic body, and the groove comprises a first groove section as well as a second groove section and a third groove section which are arranged on two ends of the first groove section; the strain gauge is a constantan strain gauge, and is arranged between the second groove section and the third groove section; and the second groove section comprises a second groove section connecting part close to the first groove section as well as a second groove section extending part far away from the first groove section, and the distance between the inner side surface of the second groove section connecting part and a bilateral symmetry plane of the first groove section is greater than the distance between the inner side surface of the second groove section extending part and the bilateral symmetry plane of the first groove. The pressure sensor is simple in structure and high in measurement accuracy.
Description
Technical field
The utility model relates to a kind of sensor, particularly relates to a kind of pressure transducer that adopts new beam design.
Background technology
In daily life and commercial Application, the application of pressure transducer is more and more extensive.The elastic body of existing pressure transducer mostly is unenclosed construction.Granted publication number is that the Chinese utility model patent of CN202188887U discloses " a kind of LOAD CELLS " on April 11st, 2012, its technical scheme is: comprise elastic body, foil gauge and base, described base is connected with elastic body bottom by bolt, described elastic body bottom center place's hollow out forms the cavity of concave shape, described foil gauge is attached at the top of cavity, described center, elastic body top is provided with the upper groove that is convex shape, described upper groove is connected with bearing part, between described bearing part and upper groove bottom, be provided with spherical hollow space, in described spherical hollow space, steel ball is installed, described ball size is less than or equal to the size of spherical hollow space.Advantage of the present invention is: sensor construction is simple, and elastic body deformability is strong, and pressure transmission is more efficient.But this technical scheme is because elastic body is unenclosed construction, and this has caused sensor discontinuity, thereby life-span and the precision of sensor are affected.Need now a kind of simple in structure and pressure transducer that measuring accuracy is high badly.
Summary of the invention
The utility model wants technical solution problem to be, a kind of simple in structure and pressure transducer that measuring accuracy is high is provided.
For solving above technical matters, the technical solution of the utility model is: a kind of pressure transducer that adopts new beam design, the foil gauge that comprises elastic body, fit together with described elastic body and be connected with described foil gauge be connected wire, its key is: described elastic body is sheet elastic body, on described elastic body, offer and run through described elastomeric groove, described groove comprises the first groove section and is arranged on the second groove section and the 3rd groove section at described the first groove section two ends.
As improvement of the present utility model, described foil gauge is constantan foil gauge, and described foil gauge is arranged between described the second groove Duan Yu tri-groove sections.Described the second groove section comprises the second groove section connecting portion of close described the first groove section and the second groove section extension away from described the first groove section, and the medial surface of described the second groove section connecting portion is greater than the medial surface of described the second groove section extension to the distance of symmetrical of described the first groove section to the distance of symmetrical of described the first groove section.
Further improve as the utility model, described the 3rd groove section comprises the 3rd groove section connecting portion of close described the first groove section and the 3rd groove section extension away from described the first groove section, and the medial surface of described the 3rd groove section connecting portion is greater than the medial surface of described the 3rd groove section extension to the distance of symmetrical of described the first groove section to the distance of symmetrical of described the first groove section.
Further improve as the utility model, described foil gauge is arranged between described the second groove section extension and described the 3rd groove section extension.Described the second groove section is vertical with described the first groove section, and described the 3rd groove section is also vertical with described the first groove section.On the medial surface of described the second groove section extension, be provided with the first inner fovea part, on the medial surface of described the 3rd groove section extension, be provided with the second inner fovea part.
Further improve as the utility model, also comprise the connecting hole being arranged between described the second groove Duan Yu tri-groove sections.Described connecting hole is arranged between described the second groove section connecting portion and described the 3rd groove section connecting portion.
Preferably, described the second groove section and described the 3rd groove section are symmetrical about symmetrical of described the first groove section.
By implement the utility model desirable following beneficial effect:
A kind of pressure transducer that adopts new beam design, the foil gauge that comprises elastic body, fit together with described elastic body and be connected with described foil gauge be connected wire, described elastic body is sheet elastic body, on described elastic body, offer and run through described elastomeric groove, described groove comprises the first groove section and is arranged on the second groove section and the 3rd groove section at described the first groove section two ends.In the time that pressure transducer is applied in pressure, elastic body produces deformation and by being fitted in strain measurement and the output on described elastic body, thereby ensure the measuring accuracy of pressure transducer, pressure transducer itself is simple in structure simultaneously, this makes the processing and manufacturing of pressure transducer comparatively easy, and cost of manufacture is also comparatively cheap.Described foil gauge is constantan foil gauge, and described foil gauge is arranged between described the second groove Duan Yu tri-groove sections.Described the second groove section comprises the second groove section connecting portion of close described the first groove section and the second groove section extension away from described the first groove section, and the medial surface of described the second groove section connecting portion is greater than the medial surface of described the second groove section extension to the distance of symmetrical of described the first groove section to the distance of symmetrical of described the first groove section.Described the 3rd groove section comprises the 3rd groove section connecting portion of close described the first groove section and the 3rd groove section extension away from described the first groove section, and the medial surface of described the 3rd groove section connecting portion is greater than the medial surface of described the 3rd groove section extension to the distance of symmetrical of described the first groove section to the distance of symmetrical of described the first groove section.Described foil gauge is arranged between described the second groove section extension and described the 3rd groove section extension.Described the second groove section is vertical with described the first groove section, and described the 3rd groove section is also vertical with described the first groove section.On the medial surface of described the second groove section extension, be provided with the first inner fovea part, on the medial surface of described the 3rd groove section extension, be provided with the second inner fovea part.Between described the second groove Duan Yu tri-groove sections, be provided with connecting hole, described connecting hole is arranged between described the second groove section connecting portion and described the 3rd groove section connecting portion.Described the second groove section and described the 3rd groove section are symmetrical about symmetrical of described the first groove section.The pressure transducer of this employing new beam design, in the time that stressed member is linked together and power is passed to described elastic body by described connecting hole and described elastic body, there is elastic deformation because of stressed in the part in the middle of elastic body upper groove, the foil gauge being arranged between described the second groove section extension and described the 3rd groove section extension detects elastic body in the deformation situation at this place.The measuring accuracy of the pressure transducer of this structure and response speed all improve greatly, adopt the mean strain of elasticity of response body more truly of constantan foil gauge simultaneously, thereby improve the degree of accuracy that mechanics sensor is measured.
Brief description of the drawings
Fig. 1 is the utility model one-piece construction schematic diagram;
Fig. 2 is elastomeric front view of the present utility model;
Fig. 3 is elastomeric stereographic map of the present utility model.
Embodiment
As shown in Figure 1, a kind of pressure transducer that adopts new beam design, the foil gauge 20 that comprises elastic body 10, fit together with described elastic body 10 and be connected with described foil gauge 20 be connected wire 30, described elastic body 10 is sheet elastic body, on described elastic body 10, offers the groove that runs through described elastic body 10.
As shown in Figure 2,3, on described elastic body 10, offer the groove that runs through described elastic body 10, described groove comprises the first groove section 11 and is arranged on the second groove section 120 and the 3rd groove section 130 at described the first groove section 11 two ends.Described the second groove section 120 comprises the second groove section connecting portion 121 of close described the first groove section 11 and the second groove section extension 122 away from described the first groove section 11, and the medial surface of described the second groove section connecting portion 121 is greater than the medial surface of described the second groove section extension 122 to the distance of symmetrical of described the first groove section 11 to the distance of symmetrical of described the first groove section 11.Described the 3rd groove section 130 comprises the 3rd groove section connecting portion 131 of close described the first groove section 11 and the 3rd groove section extension 132 away from described the first groove section 11, and the medial surface of described the 3rd groove section connecting portion 131 is greater than the medial surface of described the 3rd groove section extension 132 to the distance of symmetrical of described the first groove section 11 to the distance of symmetrical of described the first groove section 11.Described the second groove section 120 is vertical with described the first groove section 11, and described the 3rd groove section 130 is also vertical with described the first groove section 11.On the medial surface of described the second groove section extension 122, be provided with the first inner fovea part 123, on the medial surface of described the 3rd groove section extension 132, be provided with the second inner fovea part 133.Between described the second groove section 120 and the 3rd groove section 130, be provided with connecting hole 14.Described connecting hole 14 is arranged between described the second groove section connecting portion 121 and described the 3rd groove section connecting portion 131.Described the second groove section 120 and described the 3rd groove section 130 are symmetrical about symmetrical of described the first groove section 11.
As shown in Figure 1, 2, 3, described foil gauge 20 is constantan foil gauge, and described foil gauge 20 is arranged between described the second groove section extension 122 and described the 3rd groove section extension 132.
Must be pointed out, some indefinitenesses that above-described embodiment is just made the utility model illustrate.But person of skill in the art will appreciate that, do not departing under aim of the present utility model and scope, can the utility model be made amendment, replaces and be changed, these amendments, replacement and change still belong to protection domain of the present utility model.
Claims (10)
1. one kind adopts the pressure transducer of new beam design, the foil gauge (20) that comprises elastic body (10), fit together with described elastic body (10) and be connected with described foil gauge (20) be connected wire (30), it is characterized in that: described elastic body (10) is sheet elastic body, on described elastic body (10), offer the groove that runs through described elastic body (10), described groove comprises the first groove section (11) and is arranged on the second groove section (120) and the 3rd groove section (130) at described the first groove section (11) two ends.
2. a kind of pressure transducer that adopts new beam design according to claim 1, is characterized in that: described foil gauge (20) is constantan foil gauge, and described foil gauge (20) is arranged between described the second groove section (120) and the 3rd groove section (130).
3. a kind of pressure transducer that adopts new beam design according to claim 1, it is characterized in that: described the second groove section (120) comprises the second groove section connecting portion (121) of close described the first groove section (11) and the second groove section extension (122) away from described the first groove section (11), the medial surface of described the second groove section connecting portion (121) is greater than the medial surface of described the second groove section extension (122) to the distance of symmetrical of described the first groove section (11) to the distance of symmetrical of described the first groove section (11).
4. a kind of pressure transducer that adopts new beam design according to claim 3, it is characterized in that: described the 3rd groove section (130) comprises the 3rd groove section connecting portion (131) of close described the first groove section (11) and the 3rd groove section extension (132) away from described the first groove section (11), the medial surface of described the 3rd groove section connecting portion (131) is greater than the medial surface of described the 3rd groove section extension (132) to the distance of symmetrical of described the first groove section (11) to the distance of symmetrical of described the first groove section (11).
5. a kind of pressure transducer that adopts new beam design according to claim 4, is characterized in that: described foil gauge (20) is arranged between described the second groove section extension (122) and described the 3rd groove section extension (132).
6. a kind of pressure transducer that adopts new beam design according to claim 5, it is characterized in that: described the second groove section (120) is vertical with described the first groove section (11), described the 3rd groove section (130) is also vertical with described the first groove section (11).
7. according to a kind of pressure transducer that adopts new beam design described in any one in claim 4 to 6, it is characterized in that: on the medial surface of described the second groove section extension (122), be provided with the first inner fovea part (123), on the medial surface of described the 3rd groove section extension (132), be provided with the second inner fovea part (133).
8. a kind of pressure transducer that adopts new beam design according to claim 7, is characterized in that: also comprise the connecting hole (14) being arranged between described the second groove section (120) and the 3rd groove section (130).
9. a kind of pressure transducer that adopts new beam design according to claim 8, is characterized in that: described connecting hole (14) is arranged between described the second groove section connecting portion (121) and described the 3rd groove section connecting portion (131).
10. a kind of pressure transducer that adopts new beam design according to claim 9, is characterized in that: described the second groove section (120) and described the 3rd groove section (130) are symmetrical about symmetrical of described the first groove section (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269092.9U CN203881466U (en) | 2014-05-26 | 2014-05-26 | Pressure sensor adopting novel beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269092.9U CN203881466U (en) | 2014-05-26 | 2014-05-26 | Pressure sensor adopting novel beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881466U true CN203881466U (en) | 2014-10-15 |
Family
ID=51681953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269092.9U Expired - Fee Related CN203881466U (en) | 2014-05-26 | 2014-05-26 | Pressure sensor adopting novel beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881466U (en) |
-
2014
- 2014-05-26 CN CN201420269092.9U patent/CN203881466U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202676329U (en) | Pressure sensor | |
| ATE542074T1 (en) | PRESSURE SEAL AND PRESSURE GAUGE WITH SUCH A PRESSURE SEAL | |
| MX349764B (en) | Load cell with inclination compensation. | |
| BR112016006471A2 (en) | multi-variable process fluid transmitter module | |
| CN103575446A (en) | Medium-measurement-range three-dimensional force sensor | |
| GB2496426B (en) | Gauge | |
| DE602006013937D1 (en) | INSULATED PIEZOELECTRIC SENSOR FOR MEASURING ACCELERATION OR PRESSURE | |
| CN204556063U (en) | Cantilever beam weighting transducer | |
| CN203881466U (en) | Pressure sensor adopting novel beam structure | |
| CN103017948A (en) | Piezoresistive type pressure sensor | |
| CN206219975U (en) | A kind of smart bridge bearing | |
| CN202903392U (en) | Bayonet type polished rod dynamic load sensor | |
| CN205483165U (en) | Two silicon capacitance fluviographs of pressing extremely of high accuracy | |
| CN202928731U (en) | Stress sensor with high sensitivity | |
| RU2010102390A (en) | TENSOR RESISTANCE POWER SENSOR | |
| WO2009136777A3 (en) | Resilient body for measuring loads, and a non-contact load-measuring device employing the same | |
| CN203053526U (en) | Pull type and press type dual-purpose force measuring weighing sensor | |
| CN108007633B (en) | Micro-air-bag type flexible three-dimensional force sensor | |
| CN207439436U (en) | A kind of elastomer equipped with stress relief hole | |
| CN203191120U (en) | Packaging machine pressure sensor | |
| CN204202715U (en) | A kind of LOAD CELLS | |
| CN204111254U (en) | Electronic-weighing hydraulic forklift sensor fixing structure | |
| CN204831055U (en) | Go -no go gauge | |
| CN202074944U (en) | Strain transducer | |
| RU2013158766A (en) | ANEMOMETER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141015 Termination date: 20210526 |