CN202074944U - Strain transducer - Google Patents
Strain transducer Download PDFInfo
- Publication number
- CN202074944U CN202074944U CN2011201695527U CN201120169552U CN202074944U CN 202074944 U CN202074944 U CN 202074944U CN 2011201695527 U CN2011201695527 U CN 2011201695527U CN 201120169552 U CN201120169552 U CN 201120169552U CN 202074944 U CN202074944 U CN 202074944U
- Authority
- CN
- China
- Prior art keywords
- elastic body
- strain transducer
- strain
- data line
- fixed
- 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
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Force In General (AREA)
Abstract
The utility model discloses a strain transducer, which mainly comprises an elastic body, a transducer base, a strain gauge, a bearing circular shaft and a data line. The bearing circular shaft is fixed on a shaft hole arranged on the strain transducer base, and an arc of the bearing circular shaft is contacted with the elastic body, has no rigid connection and cannot be disturbed by other force. Simultaneously, the elastic body is fixed in a groove of the transducer base through an installation screw and a screw washer, so that the strain transducer avoids errors caused by fixing and is high in output accuracy and simple and convenient to assemble and disassemble. Waterproof devices are arranged on a strain sensitive area where the strain gauge is pasted and a leading and jointing area of the data line, so that a waterproof performance is effectively improved, and service life is prolonged.
Description
Technical field
The utility model relates to a kind of sensor, especially a kind of strain transducer.
Background technology
At present, known strain transducer is generally by elastic body, high precision sensitive resistance element, data line, and sensor mounting base and mounting template are formed.Existing sensors needs improved problem specific as follows: first, known strain transducer is carrying out elastic body when carrying machining process, the elastic body of patch location all has arc surface, this contour structures strain gradient when elastic body is stressed is big, this can amplify the error that artificial paster produces, it is bigger than normal to cause sensor zero to waft, and influences the working sensor performance; Second; the work under bad environment of strain transducer; the external factor influence such as vibrated in the course of work of its data line easily and produced swing; influence the normal operating conditions of sensor elastomer; produce disadvantageous signal output; the 3rd; known strain transducer paster zone and data line joint area do not have fish tail and waterproof layer; sensor water-proof poor performance, and the wearing and tearing easily of paster zone, the 4th; known strain transducer product in use has the problem that is difficult to dismounting; common installation method is that direct open screw hole is fixed or riveted on sensor, but these two kinds of methods cause the sensor distortion easily, will influence service precision; the 5th; because contact or connected mode are introduced disturbing factors such as torsion in the middle of measuring process easily, cause measuring error.
The utility model content
At the deficiencies in the prior art, the purpose of this utility model is to provide a kind of output accuracy height, good water-proof effect, the strain transducer of easy removal.
The utility model adopts following technical scheme to realize its purpose: a kind of strain transducer, it is characterized in that: this sensor mainly comprises elastic body and sensor base, elastic body is positioned at the sensor base groove on the sensor base, cavity of middle formation, and the two is fixed together by screw and Screw gasket are installed, the elastic body both sides are provided with the fixed support edge strip, the elastic body upper surface is fixed with the load circular shaft by two axis holes on the sensor base, be adhesive with foil gauge in the strain sensitive zone in the elastic body concave plane of elastic body lower surface, foil gauge links to each other with data line, data line is fixed on the elastic body lower surface by sealing, elastomeric lower surface is the plane, design has a planar section that the strain variation gradient is less on this plane, is adhesive with the strain sensitive zone of foil gauge and data line and draws joint area and be provided with water-tight device.
The beneficial effect that the technical scheme that adopts the utility model to provide can reach is: the utility model load circular shaft is fixed on the axis hole on the strain transducer pedestal, the circular arc of load circular shaft contacts with elastic body, be not rigidly connected, be not subjected to the interference of other power, elastic body is fixed in the sensor base groove by screw and Screw gasket are installed simultaneously, eliminated because the error that fixedly causes, thereby make the output accuracy height, easy removal, being adhesive with the strain sensitive zone of foil gauge and data line draws joint area and is provided with water-tight device, can effectively improve its water resistance, increase the service life.
Description of drawings
Fig. 1 is the utility model vertical view;
Fig. 2 is the utility model sectional view;
Fig. 3 is the utility model elastic body front elevation;
Fig. 4 is the utility model elastic body upward view.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, be respectively the utility model elastic body active view, the utility model elastic body upward view, the utility model vertical view and the utility model sectional view, a kind of strain transducer, mainly comprise elastic body 11 and sensor base 10, elastic body 11 is positioned at the sensor base groove 6 on the sensor base 10, cavity of middle formation, and the two is fixed together by screw 8 and Screw gasket 9 are installed.Elastic body 11 is fixed in the sensor base groove 6 by screw 8 and Screw gasket 9 are installed, and there are not power in elastic body 11 and installation screw 8 and Screw gasket 9, have eliminated owing to the error that fixedly causes, thereby have made the output accuracy height, easy removal.Elastic body 11 both sides are provided with fixed support edge strip 3, elastic body 11 upper surfaces are fixed with load circular shaft 7 by two axis holes on the sensor base 10, be adhesive with foil gauge 2 in the strain sensitive zone 1 in the elastic body concave plane 5 of elastic body 11 lower surfaces, foil gauge 2 links to each other with data line 4, data line 4 is fixed on elastic body 11 lower surfaces by sealing, the lower surface of elastic body 11 is the plane, design has a planar section that the strain variation gradient is less on this plane, is adhesive with the strain sensitive zone 1 of foil gauge 2 and data line 4 and draws joint area and be provided with water-tight device.The utility model load circular shaft is fixed on the axis hole on the strain transducer pedestal, the circular arc of load circular shaft contacts with elastic body, be not rigidly connected, be not subjected to the interference of other power, being adhesive with the strain sensitive zone of foil gauge and data line draws joint area and is provided with water-tight device, can effectively improve its water resistance, increase the service life.
Claims (6)
1. strain transducer, it is characterized in that: this sensor mainly comprises elastic body and sensor base, elastic body is positioned at the sensor base groove on the sensor base, cavity of middle formation, and the two is fixed together by screw and Screw gasket are installed.
2. according to the described strain transducer of claim 1, it is characterized in that: the elastic body both sides are provided with the fixed support edge strip.
3. according to the described strain transducer of claim 1, it is characterized in that: the elastic body upper surface is fixed with the load circular shaft by two axis holes on the sensor base.
4. according to the described strain transducer of claim 1, it is characterized in that: be adhesive with foil gauge in the strain sensitive zone in the elastic body concave plane of elastic body lower surface, foil gauge links to each other with data line, and data line is fixed on the elastic body lower surface by sealing.
5. according to the described strain transducer of claim 1, it is characterized in that: elastomeric lower surface is the plane, and design has a planar section that the strain variation gradient is less on this plane.
6. according to the described strain transducer of claim 4, it is characterized in that: be adhesive with the strain sensitive zone of foil gauge and data line and draw joint area and be provided with water-tight device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201695527U CN202074944U (en) | 2011-05-25 | 2011-05-25 | Strain transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201695527U CN202074944U (en) | 2011-05-25 | 2011-05-25 | Strain transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074944U true CN202074944U (en) | 2011-12-14 |
Family
ID=45113044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201695527U Expired - Fee Related CN202074944U (en) | 2011-05-25 | 2011-05-25 | Strain transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540432A (en) * | 2019-01-08 | 2019-03-29 | 同济大学 | Double-connecting rod type sensor fixed mechanism and bridge monitoring device |
-
2011
- 2011-05-25 CN CN2011201695527U patent/CN202074944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540432A (en) * | 2019-01-08 | 2019-03-29 | 同济大学 | Double-connecting rod type sensor fixed mechanism and bridge monitoring device |
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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 |
Granted publication date: 20111214 Termination date: 20170525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |