CN217358734U - Device for compensating all-round tilting weighing error of electronic scale - Google Patents
Device for compensating all-round tilting weighing error of electronic scale Download PDFInfo
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- CN217358734U CN217358734U CN202220227767.8U CN202220227767U CN217358734U CN 217358734 U CN217358734 U CN 217358734U CN 202220227767 U CN202220227767 U CN 202220227767U CN 217358734 U CN217358734 U CN 217358734U
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Abstract
The utility model discloses a device of electronic scale all around slope error compensation of weighing. The dual-hole cantilever beam weighing sensor is installed between the scale table top and the electronic scale base, the inclination angle detection device is installed on the top surface of one side of the electronic scale base, and the inclination angle detection device faces the scale table top. The utility model discloses can be used for realizing revising and compensating the all-round slope error of weighing of diplopore cantilever beam electronic scale for improve the measurement accuracy of diplopore cantilever beam electronic scale, the accuracy improves.
Description
Technical Field
The utility model relates to a device that is used for electronic scale whole week slope error compensation of weighing especially relates to a device that is used for electronic scale whole week slope error compensation of weighing.
Background
Electronic scales are used as common devices for modern mass measurement, have the characteristics of low delay, large measuring range, simple operation, convenient use, easy digital control and the like, and are widely applied to various fields of financial trade, production and manufacturing, industrial processing, scientific research and the like, so the accuracy of the electronic scales is particularly important.
In the market at the present stage, the electronic scale with the double-hole cantilever beam sensor is the electronic scale with the most use and the most extensive application. The level of the installation position of the double-hole cantilever beam type electronic scale is a precondition for ensuring the accuracy of the double-hole cantilever beam type electronic scale in the using process, but in practical application, the installation plane is often non-horizontal, such as an electronic scale on a vehicle, an electronic scale on a conveyer belt and the like. This reduces the accuracy of the electronic scale, which can result in inaccurate weighing and even large errors.
For the error compensation generated by the inclination of the dual-hole cantilever beam type electronic scale, the research at home and abroad is insufficient at the present stage, the related documents are few, and the error compensation is only performed on the inclination error in a single direction, such as a paper of "automatic compensation research on angle of weighing system" (published in P18-21 of the 2 th month of weighing apparatus 2008) in golden Jian and a paper of "discussion on the inclination test error of the electronic scale" (published in P35-38 of the 12 th month of weighing apparatus in 2013) in Guo Ming. And no specific compensation algorithm modeling analysis is carried out, so that the practical value is low.
SUMMERY OF THE UTILITY MODEL
In order to avoid and solve the technical problem, the utility model provides a device that is used for diplopore cantilever beam sensor electronic scale all around slope error compensation of weighing.
As shown in fig. 4, the technical solution of the present invention is as follows:
the electronic scale is a double-hole cantilever beam sensor electronic scale and comprises a scale table board, a double-hole cantilever beam weighing sensor, an inclination angle detection device, a data processor and an electronic scale base, wherein the double-hole cantilever beam sensor electronic scale comprises the scale table board, the double-hole cantilever beam weighing sensor and the electronic scale base, the double-hole cantilever beam weighing sensor is installed between the scale table board and the electronic scale base, the inclination angle detection device is installed on the top surface of one side of the electronic scale base, and the inclination angle detection device faces the scale table board.
And the top surface of the electronic scale base is also provided with a data processor, and the data processor is electrically connected with the inclination angle detection device.
The inclination angle detection device adopts an acceleration sensor.
The number of acceleration axes detected by the acceleration sensor is at least two axes.
The double-hole cantilever beam sensor electronic scale is a table top scale.
The utility model discloses a to the slope attitude parameter of the inclination detection device output that adds in the electronic scale system and the voltage value of electronic scale weighing sensor output bring into total slope error calculation model and calculate and obtain the electronic scale slope error of weighing for the compensation makes the electronic scale indicating value make its mass that is close to the actual heavy object.
The utility model has the advantages that:
the utility model discloses can realize improving the measurement accuracy of diplopore cantilever beam electronic scale to correction and the compensation of diplopore cantilever beam electronic scale all-round slope weighing error, it is efficient, the accuracy is high.
Drawings
FIG. 1 is a simplified block diagram of an electronic scale system with a tilt angle detection device added thereto;
FIG. 2 is a schematic view of the gravity decomposition of the weight on an inclined plane;
FIG. 3 is a schematic diagram of a dual-hole cantilever electronic scale tilt (including two tilt directions);
FIG. 4 is a flow chart of the present invention;
FIG. 5 is a schematic view of the installation of the tilt angle detecting device;
FIG. 6 is a compensation curve of a tilted weighing error calculation model in the direction of a curve tilted about an axis perpendicular to a dual-hole cantilever beam hole in an electronic scale according to an example
The fitting curve of (1);
FIG. 7 is an example electronCompensation curve in inclined weighing error calculation model under inclined direction of scale inclined around double-hole cantilever beam hole axis
The fitting curve of (1);
FIG. 8 shows d in a model of a calculation of a tilt weighing error in a tilt direction of an electronic scale tilted around a hole axis of a dual-hole cantilever in an example y The fitting curve of (1);
table 1 is the data of the indication values when the front and back inclined weighing of the utility model is fully loaded in the example.
In the figure: 1. the device comprises a scale table top, 2 a double-hole cantilever beam weighing sensor, 3 an inclination angle detection device, 4 a data processor, 5 and an electronic scale base.
Detailed Description
For the purpose of making the purpose, technical solutions and advantages of the present application more apparent, the present application is further described below with reference to the accompanying drawings and examples, however, all descriptions are for illustrative purposes only and should not be construed as forming any limitation on the present invention. Furthermore, any single feature described or implicit in the embodiments described herein or any single feature shown or implicit in the drawings or any single feature or combination or subtraction between such features (or equivalents thereof) may continue to be used or subtracted to obtain still further embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
The utility model discloses the device that adopts is shown in figure 5, including balance mesa 1, diplopore cantilever beam weighing sensor 2, inclination detection device 3, data processor 4 and electronic scale base 5, diplopore cantilever beam sensor electronic scale includes balance mesa 1, diplopore cantilever beam weighing sensor 2 and electronic scale base 5, diplopore cantilever beam weighing sensor 2 is installed between balance mesa 1 and electronic scale base 5, balance mesa 1 is located electronic scale base 5's top, install inclination detection device 3 on electronic scale base 5 one side top surface, inclination detection device 3 detects the contained angle change between balance mesa 1 bottom surface and the electronic scale base 5 towards balance mesa 1.
Under the general condition, be parallel between 1 bottom surface of balance mesa and the electronic scale base 5 top surface, when diplopore cantilever beam sensor electronic scale all-round slope produced the error, through setting up the nonparallel degree between 3 detection balance mesa 1 bottom surfaces of inclination and the electronic scale base 5 top surface of inclination, carry out the feedback compensation.
In specific implementation, a data processor 4 is further installed on the top surface of the electronic scale base 5, and the data processor 4 is electrically connected with the inclination angle detection device 3 and used for processing data detected by the inclination angle detection device 3.
In specific implementation, the inclination angle detection device 3 adopts an acceleration sensor, the number of acceleration shafts detected by the acceleration sensor is at least two shafts, and the dual-hole cantilever beam sensor electronic scale is a table top scale.
For a further understanding of the present invention, the following examples are given by way of illustration and the accompanying drawings are described in detail:
referring to FIG. 2, the weight with mass M is at an inclined angle
As shown in fig. 8. The pressure of the weight on the plane is a component F of gravity along the direction vertical to the plane 1 Balance force of (2)
And (3) positively correlating the voltage value U output by the double-hole cantilever beam weighing sensor with the pressure received by the double-hole cantilever beam weighing sensor, and obtaining an inclined weighing error calculation model according to the positive correlation.
According to actual conditions, an inclination angle detection device 3 is added in an electronic scale system of the double-hole cantilever beam sensor as shown in figure 5, and the specific installation position can be adjusted according to actual conditions, but the inclination angle detection device 3 is ensured to be installed on an electronic scale base 5 and is the same as the levelness of the electronic scale base. The inclination angle detection device 3 is internally provided with an acceleration sensor, the number of axes of the acceleration sensor is at least two, and the acceleration sensor can output the inclination attitude parameter of the plane where the acceleration sensor is located to a data processor 4 of the electronic scale.
The implementation and effects will be described and explained below with reference to a specific dual-hole cantilever beam sensor electronic scale, as shown in FIG. 4.
Electronic scale of the double-hole cantilever beam sensor: a double-hole cantilever beam platform scale with measuring range of 30000g and resolution of 5 g. When the inclination angle exceeds 12 degrees, the object to be weighed on the weighing surface of the electronic scale naturally slides down and cannot be weighed, so the inclination angle range of the scale is set as
Meanwhile, the inclination angle detection device 3 is arranged on the scale and is positioned on the same plane with the base thereof as shown in figure 5.
The method comprises the steps of weighing 0-30000 g, carrying out experiments every 300g, and measuring to obtain a characteristic curve of an inclination angle and a weighing error of the electronic scale in two inclination directions (the axis of a double-hole cantilever beam hole of the electronic scale inclines and the electronic scale inclines around the axis of the double-hole cantilever beam hole), wherein in the specific implementation, n is the weighing weight of 300n g.
In the range of the inclination angle of-12 degrees to 12 degrees, under two inclination directions (the inclination of the double-hole cantilever beam hole axis of the electronic scale and the inclination of the electronic scale around the double-hole cantilever beam hole axis), characteristic curves of indicating values of different weights weighed by the electronic scale and weighing errors of the electronic scale are obtained through measurement, and according to each data of the characteristic curves, an estimation value of a parameter group of an inclination weighing error calculation model is calculated by using a curve fitting method.
Replacing the undetermined parameter set in the calculation model of the inclined weighing error by the calculated parameter set estimated value to obtain an inclined weighing error calculation model of the double-hole cantilever beam sensor electronic scale in two inclined directions, and further processing to obtain a compensation curve in the inclined weighing error calculation model of the double-hole cantilever beam sensor electronic scale in the inclined direction of the axis of the double-hole cantilever beam hole as shown in FIG. 6.
The compensation curve of the inclined weighing error calculation model of the electronic scale in the inclined direction around the axis of the double-hole cantilever beam hole is shown in a figure 7 and a figure 8.
And integrating the obtained inclined weighing error calculation models in the two inclined directions to obtain a total inclined weighing error calculation model.
Finally, the total inclined weighing error calculation model is solidified in a data processor 4 of the electronic scale, and the voltage value U output by the double-hole cantilever beam weighing sensor 2 in the electronic scale and the attitude parameter output by the inclined angle detection device 3 are combined
And obtaining error values E of the electronic scale under each inclined posture, and compensating the indicating value of the electronic scale to obtain a correct weight indicating value. The values of the indications of the full load output before and after compensation are shown in table 1.
TABLE 1
The above-mentioned embodiments only express one implementation mode of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. The utility model provides a device that is used for electronic scale whole week slope weighing error compensation which characterized in that: the electronic scale is a double-hole cantilever beam sensor electronic scale and comprises a scale table board (1), a double-hole cantilever beam weighing sensor (2), an inclination angle detection device (3), a data processor (4) and an electronic scale base (5), wherein the double-hole cantilever beam sensor electronic scale comprises the scale table board (1), the double-hole cantilever beam weighing sensor (2) and the electronic scale base (5), the double-hole cantilever beam weighing sensor (2) is installed between the scale table board (1) and the electronic scale base (5), the inclination angle detection device (3) is installed on the top surface of one side of the electronic scale base (5), and the inclination angle detection device (3) faces the scale table board (1).
2. The apparatus of claim 1, wherein the apparatus comprises: and a data processor (4) is also arranged on the top surface of the electronic scale base (5), and the data processor (4) is electrically connected with the inclination angle detection device (3).
3. The apparatus of claim 1, wherein the apparatus comprises: the inclination angle detection device (3) adopts an acceleration sensor.
4. The apparatus of claim 3, wherein the apparatus comprises: the number of acceleration axes detected by the acceleration sensor is at least two axes.
5. The apparatus of claim 1, wherein the apparatus further comprises: the double-hole cantilever beam sensor electronic scale is a table top scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227767.8U CN217358734U (en) | 2022-01-27 | 2022-01-27 | Device for compensating all-round tilting weighing error of electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227767.8U CN217358734U (en) | 2022-01-27 | 2022-01-27 | Device for compensating all-round tilting weighing error of electronic scale |
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| Publication Number | Publication Date |
|---|---|
| CN217358734U true CN217358734U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220227767.8U Active CN217358734U (en) | 2022-01-27 | 2022-01-27 | Device for compensating all-round tilting weighing error of electronic scale |
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| CN (1) | CN217358734U (en) |
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