CN1012011B - Electronic balance - Google Patents
Electronic balanceInfo
- Publication number
- CN1012011B CN1012011B CN 87102305 CN87102305A CN1012011B CN 1012011 B CN1012011 B CN 1012011B CN 87102305 CN87102305 CN 87102305 CN 87102305 A CN87102305 A CN 87102305A CN 1012011 B CN1012011 B CN 1012011B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- data
- weighing value
- steady state
- weighing
- 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
Links
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明涉及电子天平。本发明的电子天平的特征在于：根据将被测物放置在载荷检测部分之前的零点值和称量后将被测物从载荷检测部分取下来之后的零点值，推算出称量时的零点值，并根据这个数值修正称量值。如果采用本发明的天平，则总能不受零点偏移的影响，而获得准确的称量值。特别对高精度的电子天平，其效果更好。
The present invention relates to electronic balances. The electronic balance of the present invention is characterized in that the zero point value at the time of weighing is calculated from the zero point value before the object to be measured is placed on the load detection part and the zero point value after the object to be measured is removed from the load detection part after weighing , and correct the weighing value according to this value. If the balance of the present invention is adopted, accurate weighing values can always be obtained without being affected by zero offset. Especially for high-precision electronic balances, the effect is better.
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 storer 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.
Control section 2 is that main body constitutes with the microcomputer, except connecting the CPU(CPU (central processing unit)) 21, the ROM(ROM (read-only memory)) 22, the RAM(random access memory) 23 and IO interface 24, also connecting according to instruction and variable can made the display that numeral shows from CPU21.Connecting key 3 and key 4 on the input and output interfaces 24 of control section 2.Key 3 is to provide the dish Multiple Bonds that heavily instructs of subduction weighing plate, and key 4 is to provide instruction, the revision directive key that following described revised variable is shown on display 25.
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
1Measure.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
s-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 focus corresponding to W
1Variable quantity δ can utilize interpolation method to try to achieve, promptly
δ＝（W
s-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 balance with the display demonstration, 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 and be used for storing before the above-mentioned load test section that measured object is placed, data are in the first memory of the above-mentioned weighing value under the steady state (SS), be used for storing measured object is 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), has the zero point when calculating that according to the internal memory in the 1st and the 3rd above-mentioned storer above-mentioned second memory is deposited above-mentioned weighing value, and, can will carry out above-mentioned revised weighing value by above-mentioned arithmetical organ according to instruction and be presented on the above-mentioned display the arithmetical organ that the internal memory of above-mentioned second memory is revised.And be the control section that main body constitutes with the microcomputer, send to judge whether the resulting data in load test section are in the decision instruction of steady state (SS) by it to stablize decision mechanism, send the storage instruction of storing the weighing value to storer.
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 CN87102305A (en) | 1987-10-28 |
| CN1012011B true 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 | Electronic balance |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0746060B2 (en) |
| CN (1) | CN1012011B (en) |
Families Citing this family (6)
| 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 |
| CN105277268B (en) * | 2014-06-25 | 2018-11-09 | 中联重科股份有限公司 | Mobile silo calibration system and calibration method |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62228118A (en) | 1987-10-07 |
| JPH0746060B2 (en) | 1995-05-17 |
| CN87102305A (en) | 1987-10-28 |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
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