CN202133503U - Calibration device for mini-type three-dimensional force sensor - Google Patents
Calibration device for mini-type three-dimensional force sensor Download PDFInfo
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- CN202133503U CN202133503U CN201120204196U CN201120204196U CN202133503U CN 202133503 U CN202133503 U CN 202133503U CN 201120204196 U CN201120204196 U CN 201120204196U CN 201120204196 U CN201120204196 U CN 201120204196U CN 202133503 U CN202133503 U CN 202133503U
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- force sensor
- dimensional force
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Abstract
The utility model relates to a calibration device for a mini-type three-dimensional force sensor. The calibration device includes a foundation support, a base plate, a loading disc, a plane weight, a hanger weight, a hanging load line and a deformeter. The foundation support connects with the base plate through a bolt. And the foundation support and the base plate are mutually perpendicular. The foundation support is provided with a connection screw hole used to fixedly connect the sensor. A cylinder below the loading disc is provided with a blind hole used to connect the sensor. The calibration device for the mini-type three-dimensional force sensor in the utility model has advantages of simple structure and convenient operation. By using the calibration device, the highly precise calibration of the mini-type three-dimensional force sensor can be realized. By adopting the hanger weight and the loading disc, the calibration device for the mini-type three-dimensional force sensor in the utility model has high calibration precision.
Description
Technical field
The utility model relates to a kind of pressure transducer proving installation, specifically, relates to a kind of device that can realize three directions of microsensor are carried out static demarcating.
Background technology
Sensor technology is one of important technology of modern surveying and automated system.And pressure transducer a kind of sensor relatively commonly used especially, pressure transducer has that volume is little, in light weight, highly sensitive, reliable and stable, cost is low, be convenient to integrated advantage.At present, the direction of Study on pressure sensor and development is micro pressure sensor and multi-dimension force sensor, and this type is miniature, multi-dimension force sensor is widely used in space flight, in the medical treatment, robot, industrial automation.
The measuring accuracy of sensor is one of most important performance index of evaluation sensor, and its error comprises stochastic error and systematic error.For micro pressure sensor, its stochastic error is mainly caused by factors such as internal signal treatment circuit, quantization error, external interference; Systematic error is mainly determined by the stated accuracy of calibration system.The precise structure of microsensor own, stressed contact point is less, so the design studies of sensor calibration apparatus is most important, the measuring accuracy when its stated accuracy will directly influence its use.At present, the caliberating device that is used for micro pressure sensor is fewer, and the device of demarcation that can be used for multi-dimension force sensor is more few.Traditional angle of passing through between adjustment loading transfer rope and the surface level changes the direction of imposed load, and this method has bigger deflection error, will directly influence stated accuracy.Hefei Institutes of Physical Science, Chinese Academy of Sciences has been developed a kind of six-dimension force sensor calibration device of medium range; The patent No. is CN 101571441A; Can realize the sensor of moderate journey is demarcated; But the transducer calibration precision for little range can reduce, and this device do not have versatility, possibly can't demarcate for the multi-dimension force sensor of other types.And be not used in the measurement moment of torsion for the multi-dimension force sensor that has; For example two-dimentional power, three-dimensional force sensor; Therefore the power that only needs to demarcate three directions just can meet the demands, and uses traditional multidimensional power calibrating platform more loaded down with trivial details, makes the whole calibrating device to reduce.
Summary of the invention
The utility model is that will to solve the sensor calibration apparatus versatility that exists in the prior art poor, the technical matters that can't demarcate little range sensors, and a kind of miniature three-dimensional force sensor caliberating device is provided.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: a kind of miniature three-dimensional force sensor caliberating device comprises pedestal, chassis, loading disc, dull and stereotyped counterweight, hook counterweight, suspending weight line, strainmeter; Be characterized in: pedestal is connected through bolt with the chassis; And pedestal is vertical each other with the chassis, and pedestal is provided with the connection screw that is fixedly connected sensor, has the blind hole that connects sensor in the right cylinder below the said loading disc.
During the power of x, y direction, the chassis is fixed on the surface level in demarcating surface level, and sensor is fixed on the pedestal, and suspending weight line one end is fastened on the boss of sensor, an other end coupling hook counterweight, and sensor connects strainmeter.
In demarcating vertical plane during the power of z direction; Base level is placed on the surface level upper sensor and is fixed on the pedestal; Loading disc is placed on above the boss of sensor; And the blind hole above the loading disc is connected with boss transition fit on the sensor, places dull and stereotyped counterweight above the loading disc, and sensor connects strainmeter.
The beneficial effect of the utility model is:
The utility model is simple in structure, and is easy to operate, realizes the high-precision calibrating to micro-force sensor; Adopt suspension counterweight and pallet, stated accuracy is high.
Description of drawings
Fig. 1 is the structural front view of three-dimensional force sensor caliberating device;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is that A among Fig. 1 is to view;
Fig. 4 is x direction or a y direction demarcation synoptic diagram on the surface level;
Fig. 5 is that the z direction is demarcated synoptic diagram on the vertical plane;
Fig. 6 is the loading disc cut-open view;
Fig. 7 is miniature bone two-dimensional stress sensor cut-open view.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
To shown in Figure 5, the miniature three-dimensional force sensor caliberating device of the utility model comprises pedestal 1, chassis 2, loading disc 3, bolt 4, dull and stereotyped counterweight 5, hook counterweight 6, suspending weight line 7, strainmeter 8, sensor 9 like Fig. 1.
Pedestal 1 is connected through bolt 4 with chassis 2, and pedestal 1 is vertical each other with chassis 2, and pedestal 1 is provided with the connection screw that is fixedly connected sensor 9, has the blind hole (Fig. 6) that connects sensor 9 in the loading disc 3 following right cylinders.
Be example with miniature bone two-dimensional stress sensor below; Scaling method and step are described; Miniature bone two-dimensional stress sensor structural representation is as shown in Figure 7; Miniature bone two-dimensional stress sensor can realize the axial push-pull power of bone and radial shear force measurement, therefore need be to axially demarcating with both direction radially.
In order to realize that the masterpiece of x, y direction in the surface level is demarcated, take following technical scheme:
As shown in Figure 4, because the power that x direction and y direction are demarcated only differs 90 ° on direction, only need the direction of one 90 ° of sensor 9 conversions both can have been realized the demarcation to x direction and y direction.Demarcating steps is following:
At first through bolt 4 sensor 9 is fixed on the pedestal 1, the chassis 2 with caliberating device is fixed on the surface level then, and bolt 4 is connected on the surface level through four holes on the chassis 2, plays the fixing effect of whole device.When sensor 9 is demarcated, suspending weight line 7 is fastened on the boss of sensor 9, what the suspending weight line adopted is the line on the racket; Such line is out of shape very little under tension, can bear very big power simultaneously, and an other end of suspending weight line 7 is used for coupling hook counterweight 6; To link up with counterweight 6 successively when loading hangs on the suspending weight line; Can easily counterweight be taken off successively in the time of unloading, gather the output strain value of whole sensor 9, accomplish demarcation x direction on the surface level and y direction with this with strainmeter 8; Because suspending weight line 7 is very light, weight can be ignored.Because what adopt is the suspending weight method, when demarcating, direction is controlled by gravity, so fixed setting is accurate.Change direction if desired, can sensor 9 be moved 90 ° and demarcate, four threaded holes are arranged on the pedestal 1, four threaded holes are on same circle, and two holes of level and two vertical holes are orthogonal.
For demarcating z direction on the vertical plane, take following technical scheme:
As shown in Figure 5, sensor 9 is fixed on the pedestal 1, fix with bolt 4, simultaneously pedestal 1 is lain in a horizontal plane on the surface level.Be placed on loading disc 3 above the boss of sensor 9; Because the size of the blind hole of opening above the loading disc 3 is identical with the boss diameter of sensor 9; Both are transition fit, and the weight of whole pallet will be loaded on the sensor 9 fully, and the weight of pallet is 1KG; Be minimum loading force, the weight of the pallet of can making amendment as required.The value of original upload is the weight of pallet.In the loading procedure subsequently, dull and stereotyped counterweight 5 is loaded on the pallet successively,, can be superimposed upon successively on the pallet, add carried convenient because dull and stereotyped counterweight 5 is writing board shapes.In loading and uninstall process, with the strain of strainmeter 8 record sensors 9.So just accomplished demarcation to the z direction.
Claims (3)
1. miniature three-dimensional force sensor caliberating device; Comprise pedestal (1), chassis (2), loading disc (3), dull and stereotyped counterweight (5), hook counterweight (6), suspending weight line (7) and strainmeter 8; It is characterized in that: said pedestal (1) is connected through bolt (4) with chassis (2); And pedestal (1) is vertical each other with chassis (2); Pedestal (1) is provided with the connection screw that is fixedly connected sensor (9), has the blind hole that connects sensor (9) in the following right cylinder of said loading disc (3).
2. miniature three-dimensional force sensor caliberating device according to claim 1; It is characterized in that: in demarcating surface level during the power of x, y direction; Said chassis (2) is fixed on the surface level, and sensor (9) is fixed on the pedestal (1), and suspending weight line (7) one ends are fastened on the boss of sensor (9); An other end coupling hook counterweight (6), sensor (9) connects strainmeter (8).
3. miniature three-dimensional force sensor caliberating device according to claim 1; It is characterized in that: in demarcating vertical plane during the power of z direction; Said pedestal (1) lies in a horizontal plane on the surface level; Sensor (9) is fixed on the pedestal (1), and loading disc (3) is placed on above the boss of sensor (9), and the blind hole above the loading disc (3) is connected with boss transition fit on the sensor (9); Place dull and stereotyped counterweight (5) above the loading disc (3), sensor (9) connects strainmeter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120204196U CN202133503U (en) | 2011-06-17 | 2011-06-17 | Calibration device for mini-type three-dimensional force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120204196U CN202133503U (en) | 2011-06-17 | 2011-06-17 | Calibration device for mini-type three-dimensional force sensor |
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| Publication Number | Publication Date |
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| CN202133503U true CN202133503U (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120204196U Expired - Fee Related CN202133503U (en) | 2011-06-17 | 2011-06-17 | Calibration device for mini-type three-dimensional force sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458429A (en) * | 2014-08-20 | 2015-03-25 | 平湖普英特高层设备有限公司 | Wind-resisting pin test platform |
| CN109883611A (en) * | 2019-03-14 | 2019-06-14 | 上海交通大学 | A kind of easy force sensor caliberating device and method |
| CN111174969A (en) * | 2020-03-06 | 2020-05-19 | 合肥工业大学 | Dynamic calibration equipment for multi-dimensional force sensor generating negative step |
-
2011
- 2011-06-17 CN CN201120204196U patent/CN202133503U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458429A (en) * | 2014-08-20 | 2015-03-25 | 平湖普英特高层设备有限公司 | Wind-resisting pin test platform |
| CN109883611A (en) * | 2019-03-14 | 2019-06-14 | 上海交通大学 | A kind of easy force sensor caliberating device and method |
| CN111174969A (en) * | 2020-03-06 | 2020-05-19 | 合肥工业大学 | Dynamic calibration equipment for multi-dimensional force sensor generating negative step |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120617 |