CN2525490Y - Plate type sensor - Google Patents
Plate type sensor Download PDFInfo
- Publication number
- CN2525490Y CN2525490Y CN 02218981 CN02218981U CN2525490Y CN 2525490 Y CN2525490 Y CN 2525490Y CN 02218981 CN02218981 CN 02218981 CN 02218981 U CN02218981 U CN 02218981U CN 2525490 Y CN2525490 Y CN 2525490Y
- Authority
- CN
- China
- Prior art keywords
- plate body
- slotted eye
- hole wall
- slotted holes
- sensor
- 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 - Lifetime
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- Measurement Of Force In General (AREA)
Abstract
The utility model relates to a weight sensor, in particular to a plate type sensor for weighting cars, mainly comprising a plate body, slotted holes arranged on the two sides of the plate body along the length direction of the plate body, and electrical resistance strain gages stuck to the hole wall of the end of the slotted holes, wherein, the slotted holes on the two sides are H-shaped, the thickness between the hole wall of the end of the adjacent slotted holes on the outer side of the plate body is greater than that of the hole wall of the end of the adjacent slotted holes in the middle part of the plate body, and the four corners of the underside of the plate body are provided with a protruding supporting surface. The sensor of the utility model has a better processing property; the strain area is not evenly distributed, therefore, when the object to be weighted on a balance body has different positions of force, the signal of the strain output is keep consistent, which reduces the error of slanting carrying weighting and increases the measuring accuracy.
Description
Technical field
The utility model relates to a kind of LOAD CELLS, especially relates to a kind of board-like sensor that is used for vehicle weighing.
Background technology
The LOAD CELLS of using for the vehicle weighing that flows, its structure of LOAD CELLS commonly used at present constitutes for one or more groups resistance strain gage is evenly distributed on the plate body, LOAD CELLS with respect to cantilever beam structure, this kind LOAD CELLS is more convenient in the use, but all unanimities because each strain regions of sensor distributes, so when measured mobile vehicle is puted forth effort the position not simultaneously on weighing platform, because of the signal of strain regions output inconsistent, cause certain unbalance loading weighting error, thereby can influence measuring accuracy.
Summary of the invention
The purpose of this utility model provides good, the little board-like sensor of unbalance loading weighting error when measuring of a kind of processing technology.
The technical scheme that realizes the utility model purpose is: a kind of board-like sensor, slotted eye that comprises plate body, is provided with in its both sides along the plate body length direction and the resistance strain gage that sticks on each hole wall place, slotted eye end, it is characterized in that: each slotted eye of described both sides is I-shaped slotted eye, strain beam thickness between the adjacent slot bore ends hole wall of the plate body outside is greater than the strain beam thickness between its each adjacent slot bore ends hole wall of middle part, and four jiaos of the plate body bottom have protruding carrying plane.
Adopt the advantage of technique scheme to be, because the strain beam thickness skewness on the plate body between each adjacent slot bore ends hole wall, and make each strain regions difference on the sensor, when being claimed that article are positioned at the sensor diverse location, promptly center of effort is in the position of weighing platform difference, and the signal of its strain output all can be consistent, so in to the dynamic load weighing process, can reduce the unbalance loading weighting error, improve measuring accuracy, and satisfy request for utilization.Its slotted eye of board-like sensor of the present utility model is I-shaped slotted eye, and the straight-line segment of slotted eye both ends hole wall is convenient to the stickup of resistance strain gage, its good manufacturability.Secondly sensor adopts four jiaos of supportings as stress point, makes the scale body have supporting stability preferably.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Of the present utility model board-like sensor shown in Fig. 1～2, slotted eye 2 that comprises plate body 1, is provided with in its both sides along plate body 1 length direction and the resistance strain gage 6 that sticks on each hole wall place, slotted eye 2 end, resistance strain gage 6 is connected and composed one or more Wheatstone bridges, and lead-in wire passes and is connected with instrument from the wire guide 5 of a side of plate body 1.Each slotted eye 2 of the utility model both sides is I-shaped slotted eye, resistance strain gage 6 is pasted the straight-line segment at the end wall place of I-shaped slotted eye both sides, so be easy to fabrication and processing, slotted eye 2 as shown in Figure 2 constitutes I-shaped slotted eye by the square opening at middle part and the elongated slot arcuate socket at its both ends; The perhaps I-shaped slotted eye that is made of the elongated slot arc hole shape at the slot at middle part and its both ends, resistance strain gage 6 sticks on the straight-line segment of two ends elongated slot arcuate socket.In the strain beam thickness 3 between each adjacent slotted eye 2 end hole wall of plate body 1 outside greater than the strain beam thickness between each adjacent slotted eye 2 end hole wall of plate body 1 middle part, each strain beam thickness 3 progressively evenly increases progressively to two outsides from the middle part of plate body 1, because the inhomogeneous setting of each strain beam thickness, make that each strain regions of sensor is inequality, so the signal of strain regions output is consistent, can reduce the unbalance loading weighting error, improve measuring accuracy.For making weighing platform have stable bearing performance, four jiaos of plate body 1 bottom have protruding carrying plane 4.
Claims (3)
1, a kind of board-like sensor, slotted eye (2) that comprises plate body (1), is provided with in its both sides along plate body (1) length direction and the resistance strain gage (6) that sticks on hole wall place, each slotted eye (2) end, it is characterized in that: each slotted eye (2) of described both sides is I-shaped slotted eye, strain beam thickness (3) between the hole wall of adjacent slotted eye (2) end, plate body (1) outside is greater than the strain beam thickness (3) between its each adjacent slotted eye (2) end hole wall of middle part, and four jiaos of plate body (1) bottom have protruding carrying plane (4).
2, board-like sensor according to claim 1 is characterized in that: described each strain beam thickness (3) progressively evenly increases progressively to two outsides from the middle part of plate body (1).
3, board-like sensor according to claim 1 is characterized in that: described slotted eye (2) constitutes I-shaped slotted eye by the square opening at middle part or the elongated slot arcuate socket at slot and its both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218981 CN2525490Y (en) | 2002-02-14 | 2002-02-14 | Plate type sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218981 CN2525490Y (en) | 2002-02-14 | 2002-02-14 | Plate type sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525490Y true CN2525490Y (en) | 2002-12-11 |
Family
ID=33697548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218981 Expired - Lifetime CN2525490Y (en) | 2002-02-14 | 2002-02-14 | Plate type sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525490Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114303046A (en) * | 2019-10-09 | 2022-04-08 | 日本电产科宝电子株式会社 | Fixing device of strain sensor and torque sensor using same |
-
2002
- 2002-02-14 CN CN 02218981 patent/CN2525490Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114303046A (en) * | 2019-10-09 | 2022-04-08 | 日本电产科宝电子株式会社 | Fixing device of strain sensor and torque sensor using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120214 Granted publication date: 20021211 |