CN102853893A - Electronic balance and correction method and device of weight sensor of electronic balance - Google Patents
Electronic balance and correction method and device of weight sensor of electronic balance Download PDFInfo
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- CN102853893A CN102853893A CN2011101781052A CN201110178105A CN102853893A CN 102853893 A CN102853893 A CN 102853893A CN 2011101781052 A CN2011101781052 A CN 2011101781052A CN 201110178105 A CN201110178105 A CN 201110178105A CN 102853893 A CN102853893 A CN 102853893A
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- weight sensor
- electronic scales
- output valve
- linearity
- electronic balance
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Abstract
The invention discloses an electronic balance and a correction method and a device of a weight sensor of the electronic balance. The method comprises the following steps of: acquiring current output values of the weight sensor; matching corresponding functional relationships with the output values according to the output values, wherein the functional relationships are used for identifying gradients of curves of electronic balance linearity, and under the curves used for identifying the electronic balance linearity, different output values correspond to different linearities; acquiring corresponding correction values according to the matched functional relationships; and performing correction on the current output values of the weight sensor according to acquired correction values. By means of the electronic balance and correction method and the device of the weight sensor of the electronic balance, line segments used for identifying electronic balance linearity in the prior art is changed into the curves, and by means of the curves, different output values correspond to different linearities. By means of the electronic balance and correction method and the device of the weight sensor of the electronic balance, output values can be more close to actual weights, elimination rate of weight sensors with low linearity is reduced, and output accuracy of weight sensors is further improved.
Description
Technical field
The invention belongs to metering field, relate in particular to bearing calibration and the device of a kind of electronic scales and weight sensor thereof.
Background technology
The electronic scales of present technology, all being based on weight sensor is that linear hypothesis is produced, and therefore, the linearity of weight sensor is a very crucial index, and whether the metering that directly affects electronic scales is qualified.And linear substandard weight sensor can only be demoted and used or scrap, and this causes the huge waste of the cost of electronic scales.
How reducing the mortality of linear lower weight sensor, improve the output accuracy of weight sensor, is one of direction of metering field research.
Summary of the invention
The object of the present invention is to provide bearing calibration and the device of a kind of electronic scales and weight sensor thereof, be intended to reduce the mortality of linear lower weight sensor, improve the output accuracy of weight sensor.
The present invention is achieved in that a kind of bearing calibration of weight sensor of electronic scales, said method comprising the steps of:
Obtain the current output valve of weight sensor;
According to the described output valve coupling funtcional relationship corresponding with this output valve, wherein, described funtcional relationship is being used for identifying under the curve of described electronic scales linearity the Linearity that different output valves is corresponding different for being used for identifying the slope of a curve of described electronic scales linearity;
Obtain corresponding corrected value according to the funtcional relationship that matches;
According to the corrected value that obtains the current output valve of described weight sensor is proofreaied and correct.
Wherein, the curve of the described electronic scales linearity of described sign is a camber line.
Wherein, the curve of the described electronic scales linearity of described sign is made of many line segments.
Wherein, described corrected value is determined by described weight sensor current output valve and described funtcional relationship.
The present invention is achieved in that a kind of means for correcting of weight sensor of electronic scales, and described device comprises:
The output valve acquisition module is used for obtaining the current output valve of weight sensor;
The funtcional relationship matching module, be used for according to the described output valve coupling funtcional relationship corresponding with this output valve, wherein, described funtcional relationship is for being used for identifying the slope of a curve of described electronic scales linearity, be used for identifying under the curve of described electronic scales linearity the Linearity that different output valves is corresponding different;
The corrected value acquisition module is used for obtaining corresponding corrected value according to the funtcional relationship that matches;
Correction module is used for according to the corrected value that obtains the current output valve of described weight sensor being proofreaied and correct.
Wherein, the curve of the described electronic scales linearity of described sign is a camber line.
Wherein, the curve of the described electronic scales linearity of described sign is made of many line segments.
Wherein, described corrected value is determined by described weight sensor current output valve and described funtcional relationship.
The present invention is achieved in that a kind of electronic scales, and described electronic scales comprises the means for correcting of the weight sensor of electronic scales provided by the invention.
Among the present invention, to change curve into for the line segment that identifies described electronic scales linearity in the prior art, under this curve, the Linearity that different output valves is corresponding different, after obtaining the output valve of weight sensor, mate funtcional relationship corresponding to this output valve, and then obtain corrected value that should funtcional relationship, and output valve proofreaied and correct, the present invention makes more weighing of approaching to reality of output valve, reduced the mortality of linear lower weight sensor, but also the output accuracy that has improved weight sensor.
Description of drawings
Fig. 1 is the process flow diagram of bearing calibration of the weight sensor of electronic scales provided by the invention;
Fig. 2 is the synoptic diagram of the current output valve of weight sensor provided by the invention and the funtcional relationship funtcional relationship between the corrected value;
Fig. 3 is the structural drawing of means for correcting of the weight sensor of electronic scales provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the process flow diagram according to the bearing calibration of the weight sensor of electronic scales of the present invention.
In step S101, the funtcional relationship of pre-stored weight sensor.
Wherein, described funtcional relationship is being used for identifying under the curve of described electronic scales linearity the Linearity that different output valves is corresponding different for being used for identifying the slope of a curve of described electronic scales linearity.
Preferably, the curve of the described electronic scales linearity of described sign is a camber line.
Preferably, the curve of the described electronic scales linearity of described sign is made of many line segments, sees also Fig. 2.
In step S102, obtain the current output valve of weight sensor.
In step S103, according to the described output valve coupling funtcional relationship corresponding with this output valve.
Wherein, described corrected value is determined by described weight sensor current output valve and described funtcional relationship.
In step S104, obtain corresponding corrected value according to the funtcional relationship that matches.
In step S105, according to the corrected value that obtains the current output valve of described weight sensor is proofreaied and correct.
In step S106, the output valve behind the output calibration.
Fig. 2 is the synoptic diagram of output valve and the funtcional relationship between the corrected value of weight sensor provided by the invention.As shown in Figure 2, X direction represents the output valve of weight sensor, and y direction represents the corrected value corresponding with output valve, and this corrected value and output valve are the linear ratio relation of segmenting.In the ideal situation, the output valve of weight sensor should and the actual weight of object between be 1: 1 linear ratio relation, the slope straight line that equals 1 namely, but in real work, weight sensor is stressed, weighing structure and various factors impact, between the actual weight of its output valve and object can deviation appear along with the increase of weight of object, theoretical analysis and actual verification through invention, roughly be the linear functional relation that is segmentation between the output valve of weight sensor and the actual weight of object, namely can represent corresponding relation between the two with the segmentation straight line, its synoptic diagram as shown in Figure 2, the output valve of weight sensor and the function corresponding relation between the corrected value are expressed as by true origin to the A point, the A point is to the B point, the B point is to the C point, four sections piecewise linear functions that the C point is ordered to D.Certainly, those skilled in the art should know, Fig. 2 is the output valve of weight sensor and a kind of function synoptic diagram between the corrected value, be not be used to the corresponding relation between the output valve that limits weight sensor of the present invention and the corrected value, in some cases, such as being in the environmental factors such as temperature, the humidity situation about changing, also can be nonlinear corresponding relation between the output valve of weight sensor and the corrected value.
In the situation of the current output valve of known weight sensor, can pass through the output valve of weight sensor as shown in Figure 2 and the funtcional relationship between the corrected value, obtain corresponding corrected value.In the preferred embodiment of the present invention, corrected value is the final output valve of electronic scales.In another embodiment of the invention, corrected value can be a positive and negative adjusted value, and the current output valve of weight sensor and this adjusted value be the final output valve of electron gain scale in addition mutually.
Fig. 3 shows the structure of means for correcting of the weight sensor of electronic scales provided by the invention.
Wherein, the funtcional relationship of funtcional relationship memory module 31 pre-stored weight sensors, wherein, the funtcional relationship of described weight sensor is made of many end to end line segments, and every corresponding corrected value of line segment specifically sees also Fig. 2.
Output valve acquisition module 32 obtains the current output valve of weight sensor;
Funtcional relationship matching module 33 is according to the described output valve coupling line segment corresponding with this output valve, wherein, the funtcional relationship of the corresponding described weight sensor of described line segment, the funtcional relationship of described weight sensor is made of many above-mentioned line segments, every corresponding corrected value of line segment;
Wherein, described corrected value is determined by described weight sensor current output valve and described funtcional relationship.
Corrected value acquisition module 34 obtains corresponding corrected value according to the funtcional relationship that matches.
Output valve behind output module 36 output calibrations.
The present invention also provides a kind of electronic scales, and described electronic scales comprises the means for correcting of the weight sensor of electronic scales provided by the invention, in view of this installs in above existing detailed description, repeats no more herein.
Among the present invention, to change curve into for the line segment that identifies described electronic scales linearity in the prior art, under this curve, the Linearity that different output valves is corresponding different, after obtaining the output valve of weight sensor, mate funtcional relationship corresponding to this output valve, and then obtain corrected value that should funtcional relationship, and output valve proofreaied and correct, the present invention makes more weighing of approaching to reality of output valve, reduced the mortality of linear lower weight sensor, but also the output accuracy that has improved weight sensor.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the bearing calibration of the weight sensor of an electronic scales is characterized in that, said method comprising the steps of:
Obtain the current output valve of weight sensor;
According to the described output valve coupling funtcional relationship corresponding with this output valve, wherein, described funtcional relationship is being used for identifying under the curve of described electronic scales linearity the Linearity that different output valves is corresponding different for being used for identifying the slope of a curve of described electronic scales linearity;
Obtain corresponding corrected value according to the funtcional relationship that matches;
According to the corrected value that obtains the current output valve of described weight sensor is proofreaied and correct.
2. the bearing calibration of the weight sensor of electronic scales as claimed in claim 1 is characterized in that, the curve of the described electronic scales linearity of described sign is a camber line.
3. the bearing calibration of the weight sensor of electronic scales as claimed in claim 1 is characterized in that, the curve of the described electronic scales linearity of described sign is made of many line segments.
4. the bearing calibration of the weight sensor of electronic scales as claimed in claim 1 is characterized in that, described corrected value is determined by described weight sensor current output valve and described funtcional relationship.
5. the means for correcting of the weight sensor of an electronic scales is characterized in that, described device comprises:
The output valve acquisition module is used for obtaining the current output valve of weight sensor;
The funtcional relationship matching module, be used for according to the described output valve coupling funtcional relationship corresponding with this output valve, wherein, described funtcional relationship is for being used for identifying the slope of a curve of described electronic scales linearity, be used for identifying under the curve of described electronic scales linearity the Linearity that different output valves is corresponding different;
The corrected value acquisition module is used for obtaining corresponding corrected value according to the funtcional relationship that matches;
Correction module is used for according to the corrected value that obtains the current output valve of described weight sensor being proofreaied and correct.
6. the means for correcting of the weight sensor of electronic scales as claimed in claim 5 is characterized in that, the curve of the described electronic scales linearity of described sign is a camber line.
7. the means for correcting of the weight sensor of electronic scales as claimed in claim 5 is characterized in that, the curve of the described electronic scales linearity of described sign is made of many line segments.
8. the bearing calibration of the weight sensor of electronic scales as claimed in claim 5 is characterized in that, described corrected value is determined by described weight sensor current output valve and described funtcional relationship.
9. an electronic scales is characterized in that, described electronic scales comprises the means for correcting of the weight sensor of each described electronic scales of claim 5 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110178105.2A CN102853893B (en) | 2011-06-28 | 2011-06-28 | Electronic balance and correction method and device of weight sensor of electronic balance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110178105.2A CN102853893B (en) | 2011-06-28 | 2011-06-28 | Electronic balance and correction method and device of weight sensor of electronic balance |
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| CN102853893A true CN102853893A (en) | 2013-01-02 |
| CN102853893B CN102853893B (en) | 2015-04-08 |
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| CN201110178105.2A Expired - Fee Related CN102853893B (en) | 2011-06-28 | 2011-06-28 | Electronic balance and correction method and device of weight sensor of electronic balance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840247A (en) * | 2017-04-13 | 2017-06-13 | 深圳怡化电脑股份有限公司 | A kind of linear sensor bearing calibration and device |
| CN107389176A (en) * | 2017-07-13 | 2017-11-24 | 铜陵凯特尔科技有限责任公司 | It is a kind of based on the intelligent weighing method repeatedly calibrated |
| CN108801430A (en) * | 2017-05-05 | 2018-11-13 | 广东美的生活电器制造有限公司 | Bearing calibration, means for correcting and the heating vessel for zero of weighing |
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| GB2212622A (en) * | 1987-11-21 | 1989-07-26 | Sartorius Gmbh | Electronic weighing machine |
| CN2932310Y (en) * | 2006-07-07 | 2007-08-08 | 富享微电子(深圳)有限公司 | Integrated circuit, measuring device convenient for self-calibration |
| CN101303253A (en) * | 2007-05-10 | 2008-11-12 | 深圳市宽恒科技有限公司 | Electronic scale circuit for preventing corrected data being rewritten and method for correcting and testing electronic scale by the same circuit |
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2011
- 2011-06-28 CN CN201110178105.2A patent/CN102853893B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2212622A (en) * | 1987-11-21 | 1989-07-26 | Sartorius Gmbh | Electronic weighing machine |
| CN2932310Y (en) * | 2006-07-07 | 2007-08-08 | 富享微电子(深圳)有限公司 | Integrated circuit, measuring device convenient for self-calibration |
| CN101303253A (en) * | 2007-05-10 | 2008-11-12 | 深圳市宽恒科技有限公司 | Electronic scale circuit for preventing corrected data being rewritten and method for correcting and testing electronic scale by the same circuit |
Non-Patent Citations (2)
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| 范铠: "传感器软件非线性校正方法综述", 《上海计量测试》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840247A (en) * | 2017-04-13 | 2017-06-13 | 深圳怡化电脑股份有限公司 | A kind of linear sensor bearing calibration and device |
| CN108801430A (en) * | 2017-05-05 | 2018-11-13 | 广东美的生活电器制造有限公司 | Bearing calibration, means for correcting and the heating vessel for zero of weighing |
| CN107389176A (en) * | 2017-07-13 | 2017-11-24 | 铜陵凯特尔科技有限责任公司 | It is a kind of based on the intelligent weighing method repeatedly calibrated |
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| CN102853893B (en) | 2015-04-08 |
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