CN87102305A - Electronic balance - Google Patents
Electronic balance Download PDFInfo
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- CN87102305A CN87102305A CN87102305.9A CN87102305A CN87102305A CN 87102305 A CN87102305 A CN 87102305A CN 87102305 A CN87102305 A CN 87102305A CN 87102305 A CN87102305 A CN 87102305A
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- mentioned
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- value
- weighing value
- weighing
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- 238000005303 weighing Methods 0.000 claims abstract description 37
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 210000000056 organ Anatomy 0.000 claims description 5
- 238000012937 correction Methods 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The present invention relates to electronic balance.Electronic balance of the present invention is characterised in that: according to measured object is placed on before the load test section zero point value and weighing after with the zero point value of measured object after the load test section is taken off, value at zero point when extrapolating weighing, and according to this numerical value correction weighing value.If adopt balance of the present invention, then can not be subjected to the influence of zero migration, and obtain weighing value accurately.Especially to high-precision electronic balance, its better effects if.
Description
What the present invention relates to is the problem of electronic balance.
Read the little electronic balance of ultimate value for the value of institute's weighing, promptly read the electronic balance of absolute value below 0.01mg of the limit, generally speaking, zero point before being placed on measured object on the weighing plate and with the zero point of measured object after weighing plate is taken off, often inconsistent.In this case, when reading the weighing value of measured object, the possibility that skew has taken place zero point is very big, therefore, has just comprised the error that produces owing to zero migration in this weighing value.
The object of the present invention is to provide a kind of balance, the error of the weighing value that this balance can be revised is aforesaid, produce owing to zero migration, thus can obtain weighing value more accurately.
Now according to as shown in Figure 1 basic synoptic diagram, for to achieve the above object and the structure of the balance of design is described as follows.The present invention is according to the data that detected by load test section a, determine that by variable the b of mechanism determines a kind of balance that the big or small And of variable shows on display, it is characterized in that: this balance has the stable decision mechanism the d whether data that can judge from load test section a are in steady state (SS); And can store and measured object is placed on the data of load test section a before going up is in weighing value W under the steady state (SS)
1The 1st storer e, can remember and measured object is placed on the data of load test section a when going up is in weighing value W under the steady state (SS)
2The 2nd recognize reservoir f, can store the data of measured object after load test section a takes off are in weighing value W under the steady state (SS) in addition
3The 3rd storer g; And according to the content W in the 1st and the 3rd storer
1And W
3, extrapolate among the 2nd storer f and remembered variable W
2The moment zero point ， And to the content W in the second memory
2The arithmetical organ h that revises; And and according to instruction will be through the revised variable W of arithmetical organ h
2Be presented on the display C.
What store among the 1st storer e is zero point before measuring, and what store among the 3rd storer g is zero point after measuring.As shown in Figure 3, if this zero point along with the time when variation, then the content W among the 2nd storer f
2Just with actual weighing value W
2' between have an error delta.
Utilize for example interpolation method etc. by arithmetical organ h ， And, from W
1And W
3Infer and store W
2The time zero point value, promptly the δ value is revised W with this numerical value
2Thereby, just can try to achieve the W of weighing value accurately
2'.
The embodiment of this acute hearing is described below with reference to the accompanying drawings.
Fig. 2 is the block scheme of the structure of expression embodiments of the invention.Load test section 1 is that main body constitutes with for example electromagnetic balance mechanism, and the load ， And that it can detect on the weighing plate 1a can flow to control section 2 to these digital conversion data in the small time interval of regulation.
The the 1st to the 5th district that uses as register is arranged among the RAM23, wherein have to be stored in zone up-to-date, defined amount in the load detection data of gathering at any time, the variable when being stored in by Moving plate Multiple Bonds 3 in addition weighs the zone that storer is used as dish; In addition, as described later, also has the zero data W that stores respectively before measuring
1, measured object weighing Value Data W
2, the zero data W after the measurement
3, gather W
1The moment and gather W
2The moment between time interval data t
1, and gather W
2The moment and gather W
3The moment between time data t
2The zone.
In ROM22, when each collection load detects data, all the load up-to-date, defined amount among the RAM23 is detected data and average, after multiply by interval coefficient, from this value, deduct the content in the heavy storer of dish again, write the accounting procedure of determining variable according to said process.In this program, comprise following routine: when promptly gathering load detection data each time, up-to-date n load is detected data compare, whether be in all within the predefined scope, come the stability of judgment data according to these data.According to this stable judged result, as hereinafter described, provide the time of storage data in foregoing the 1st to the 5th register.
In addition, in ROM22, except accounting procedure, also write following program.This program is by pressing 4 startings of revision directive key.This is to utilize content in the 1st to the 5th register and the correction formula shown in the back, revises the correction operation program that weighing Zhi ， And is shown.
It is following that explanation enters data into the method in the 1st to the 5th register and revises operation method with reference to Fig. 3.Fig. 3 illustrates the variable time history plot.Suppose now under the state before measured object is placed on the weighing plate 1a, if conclude that data have been in steady state (SS), variable W at this moment
1Just be stored in the 1st register by defeated.Monitor because load is detected data, from measured object be placed on measuring disk 1a go up after before judge, this data W
1Constantly all changing.Secondly, for from judging that measured object has been placed in measuring disk 1a goes up, reach the t during this period of time that ends in the steady state (SS) to having judged data
1Measuring ， And is stored into measured value in the 4th register.Simultaneously, with this weighing value W constantly
2Be stored in the 2nd register.When being written into that ， And concludes that data have reached steady state (SS) after this measured object, display 25 just can provide and allow the demonstration of reading, and this displaying symbol is well-known.
According to this demonstration, operating personnel read weighing value W
2， And takes off measured object from weighing plate 1a, from before weighing value W
2Rise when being deposited in after the 2nd register, after measured object is taken off, conclude this section period t that ends when data reach steady state (SS) again
2, deposited in the 5th register, in addition, the weighing value W of this moment
3, deposited in the 3rd register.
In said process, W
1～W
2～W
3Be presented at respectively on the display 25.But showing W
3State down if press revision directive key 4, just can utilize the content in the 1st to the 5th register to carry out the computing ， And of following (1) formula with its operation result W
2' be presented on the display 25.
W
2 ′=W
2-(W
3-W
1)× (t
1)/(t
1+t
2) ……（1）
(1) (the W in the formula
3-W
1) be the variable quantity at zero point before and after measuring, (t
1+ t
2) be above-mentioned variable quantity institute elapsed time.Owing to passed through (t
1+ t
2) during this period of time, if skew has taken place zero point, then its change procedure can be inferred, shown in the dotted line among Fig. 3.Therefore, input weighing value W
2The time sell a little corresponding to W
1Variable quantity δ can utilize interpolation method to try to achieve, promptly
δ=(W
3-W
1)× (t
1)/(t
1+t
2) ……（2）
Thereby the W that tries to achieve by (1) formula
2', after the skew at zero point is revised, just become a variable that relatively approaches true value.
Moreover the correction Gong Shi And among the present invention is non-to be only limited to above-mentioned (1) formula.For example, (3) formula below utilizing also can be revised skew.
W
2′＝W
2- 1/2 （W
3-W
1）……（3）
That is to say, t is arranged then if measured object is put into operation that measuring disk 1a goes up or be removed etc. when being well on
1≈ t
2, revise effectively if be only limited under this condition, then can derive (3) formula from (1) formula.
In addition, above embodiment is by pressing revision directive key 4, carrying out W
2' computing ， And shown etc. what process constituted.But also revision directive key 4 can be set specially, for example can make such structure to the usefulness of the key of having established such as double as revision directive such as while such as dish Multiple Bonds 3 grades.For example do not reaching the stipulated time as yet or exceeding schedule time, then can send respectively dish and heavily reduced instruction or revision directive.Can also make such structure, be about to the internal memory W in the 1st register and the 3rd register
1And W
2Compared, if its difference surpasses the value of regulation.Just send warning, spontaneously send revision directive simultaneously, revise computing ， And the demonstration of computing wedding fruit.
As the above explanation of doing, as implementing the present invention, because can be according to the zero point before and after measuring; extrapolate claim the variable quantity at the zero point during the weighing value, utilize this to be worth symmetrical value and revise ， And and show; therefore the influence of zero migration can be subjected to, and weighing value accurately can be often obtained.Particularly under the situation that reads ultimate value is little, precision is high electronic balance etc., its effect is bigger.
Simple declaration about drawing:
Fig. 1 is the basic synoptic diagram of expression structure of the present invention, and Fig. 2 is the block scheme of expression embodiments of the invention structure, and Fig. 3 is the principle of work key diagram of embodiments of the invention, is that expression weighing value changes example plot in time.
1 ... the load test section
1a ... weighing plate
2 ... control section
21 ... the CPU(CPU (central processing unit))
22 ... the ROM(ROM (read-only memory))
23 ... the RAM(random access memory)
25 ... display
4 ... the revision directive key
Claims (1)
- Determine the weighing value according to the data that detect from the load test section, and the balance that shows with display.It is characterized by: have and to judge whether the data that obtained by above-mentioned load test section are in the stable decision mechanism of steady state (SS); Have be used for storing with measured object be placed on before the above-mentioned load test section, data are in the first memory of the above-mentioned weighing value under the steady state (SS), be used for storing with measured object be placed on after the above-mentioned load check part, data are in the second memory of the above-mentioned weighing value under the steady state (SS); Be used for storing with measured object after take off above-mentioned load test section, data are in the 3rd storer of the above-mentioned weighing value under the steady state (SS); And have according to the internal memory in the 1st and the 3rd above-mentioned storer, calculate the arithmetical organ that zero point,, And revised the internal memory of above-mentioned second memory when above-mentioned second memory is deposited above-mentioned weighing value, by instruction, will carry out above-mentioned revised weighing value by above-mentioned arithmetical organ and be presented on the above-mentioned display then.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61072786A JPH0746060B2 (en) | 1986-03-28 | 1986-03-28 | Electronic balance |
| JP72786/86 | 1986-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87102305A true CN87102305A (en) | 1987-10-28 |
| CN1012011B CN1012011B (en) | 1991-03-13 |
Family
ID=13499418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102305 Expired CN1012011B (en) | 1986-03-28 | 1987-03-27 | Electron balance |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0746060B2 (en) |
| CN (1) | CN1012011B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277268A (en) * | 2014-06-25 | 2016-01-27 | 中联重科股份有限公司 | Mobile silo calibration system and calibration method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4814485B2 (en) * | 2003-11-18 | 2011-11-16 | 大和製衡株式会社 | Abnormality detection method for weighing device and weighing device |
| JP2011247878A (en) * | 2010-04-27 | 2011-12-08 | Yamato Scale Co Ltd | Indicator |
| JP2011255016A (en) * | 2010-06-10 | 2011-12-22 | Seiko Epson Corp | Trajectory analysis device, trajectory analysis method and zero point correction method |
| JP5048822B2 (en) * | 2010-10-04 | 2012-10-17 | 大和製衡株式会社 | Abnormality detection method for weighing device and weighing device |
| CN115655432B (en) * | 2022-12-28 | 2023-03-17 | 广东泓胜科技股份有限公司 | Method, system and related equipment for data zeroing of road weighing sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58184627U (en) * | 1982-06-01 | 1983-12-08 | 株式会社寺岡精工 | Electronic scale with drift correction device |
-
1986
- 1986-03-28 JP JP61072786A patent/JPH0746060B2/en not_active Expired - Fee Related
-
1987
- 1987-03-27 CN CN 87102305 patent/CN1012011B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277268A (en) * | 2014-06-25 | 2016-01-27 | 中联重科股份有限公司 | Mobile silo calibration system and calibration method |
| CN105277268B (en) * | 2014-06-25 | 2018-11-09 | 中联重科股份有限公司 | Moving bin cylinder school scale system and school scale method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0746060B2 (en) | 1995-05-17 |
| CN1012011B (en) | 1991-03-13 |
| JPS62228118A (en) | 1987-10-07 |
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| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |