CN112556923A - Weight optimal configuration method of large-force-value dead weight type force standard machine - Google Patents
Weight optimal configuration method of large-force-value dead weight type force standard machine Download PDFInfo
- Publication number
- CN112556923A CN112556923A CN202011427000.1A CN202011427000A CN112556923A CN 112556923 A CN112556923 A CN 112556923A CN 202011427000 A CN202011427000 A CN 202011427000A CN 112556923 A CN112556923 A CN 112556923A
- Authority
- CN
- China
- Prior art keywords
- force
- weight
- force value
- value
- weights
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention relates to a weight optimal configuration method of a high-force static gravity type force standard machine. The method realizes the crossing of the force values between the detection points in an accumulation mode, and ensures that the force value accumulated each time is formed by a weight configuration scheme with small uncertainty. The method can improve the accuracy in the actual measurement process, reduce the uncertainty generated by weight configuration schemes, solve the selection problem of a plurality of configuration schemes, improve the verification efficiency, and has important engineering application value for the actual verification work of the dead weight type force standard machine.
Description
Technical Field
The invention belongs to the technical field of dead weight type force standard machines, and particularly relates to a weight optimal configuration method of a large-force value dead weight type force standard machine.
Background
The dead weight type force standard machine directly realizes the force value reproduction through the gravity of the weight, has less external interference factors, has higher accuracy and stability compared with other types of force standard machines, and is the highest standard in the field of force value measurement. With the development and the demand of heavy industry, the rated load requirement of large-force measuring equipment is continuously increased. Therefore, the development of the dead-weight force standard machine with large force value has extremely important significance in various fields of national economy, military, science and technology and the like.
Because the number of weights of the dead weight type force standard machine with the common measuring range is small, when a force sensor with certain measuring range is detected, the spanning from a current detecting point to a next detecting point can be realized only by exchanging the weights, and the phenomenon of reverse stroke can be caused. The large-force-value dead weight type force standard machine basically realizes no weight exchange in the loading process due to the fact that the number of weights is large, such as a 4.45MN dead weight type force standard machine of the American NIST, a German PTB and a 2MN dead weight type force standard machine of a Fujian province measurement scientific research institute, and the like, and fundamentally prevents the phenomenon of 'reverse stroke' in the measuring process. However, the large-force dead weight type force standard machine has a large number of weights, so that the selectable weight configuration schemes of the verification points are very large. The large-force-value dead-weight type force standard machine is used as a high-precision measuring instrument, and different weight configuration schemes under the same force value have different influence on a measuring result and can influence the measuring precision. In the actual verification process, the staff usually selects the weight configuration scheme by experience or random selection, and such a method is time-consuming, labor-consuming, low in verification efficiency, poor in repeatability of verification results and low in measurement accuracy. Therefore, how to select a scheme with higher measurement accuracy and capable of reducing the influence of uncertainty becomes a problem which needs to be solved urgently by verification workers, and therefore, the weight optimal configuration method of the large-force-value dead weight type force standard machine is provided.
Disclosure of Invention
The invention aims to provide a weight optimal configuration method of a high-force-value dead weight type force standard machine, which improves the measurement precision of the dead weight type force standard machine and reduces the influence of uncertainty generated by a weight configuration scheme.
In order to achieve the purpose, the technical scheme of the invention is as follows: a weight optimal configuration method of a high-force-value dead weight type force standard machine comprises the following steps of firstly, numbering all weights of the high-force-value dead weight type force standard machine from the lowest end to the upper end in sequence to form a weight set; then, sequentially inputting each detection point of the detected sensor into a program according to the order of the force values from small to large; then subtracting the gravity value of a force value transmission structural member in the large-force static gravity type force standard machine from the force value of the first detection point to obtain a residual force value, substituting the residual force value into a subprogram of the weight optimal configuration method to obtain an optimal configuration scheme of the first detection point under the force value, and outputting the scheme in the form of weight number; then, removing the selected weights from the original weight set, and forming a new weight set by the rest weights; then, subtracting the first verification point force value from the second verification point force value to obtain a new residual force value, substituting the new residual force value into the subprogram of the weight optimal configuration method of the force value, selecting an optimal configuration scheme from a new weight set, outputting the scheme of the second verification point in the form of weight number, and removing the weight selected by the verification point from the weight set; repeating the steps until the scheme of the last detection point is obtained.
In an embodiment of the present invention, the method specifically includes the following steps:
step S1, numbering all weights of the dead weight type force standard machine from the lowest end to the upper end in sequence, and compiling the gravity values of the weights into a set according to the sequence of the numberingTThe collectionTThe data are stored in a program in a one-dimensional array form;
step S2, inputting all the verification points on the detected sensor into the program according to the order of the force values from small to large, and using a one-dimensional arrayWStoring the form;
step S3, initialization program, orderi=1，R=0；
Step S4, useiSubtracting the gravity value of the force value transfer structural member in the static gravity type force standard machine from the force value of the detected point to obtain the residual force valuew；
Step S5, remaining force valuewSubprogram of weight optimization configuration method for substituting force value, and the subprogram can be integratedTThe optimal configuration scheme of the weights is selected, and the selected weights are arranged in a one-dimensional arraySStoring the form of (1);
step S6, collecting the weightsTRemoving the selected weights, and forming a new set by the rest weightsTI.e. byT=T-S；
Step S7, obtaining the one-dimensional arraySStoring in a two-dimensional arrayRPerforming the following steps;
step S8, judgmentiWhether the number of the detection points is equal to the number of the detection points; if it isiIf the number of the detection points is equal to the number of the detection points, the detection scheme is directly outputRThe program is ended; if it isiIf the number of the verification points is not equal to the number of the verification points, the method will beiSubtracting the force value of +1 detection pointiThe force value of each verification point obtains a new residual force valuewI.e. byw=W(i+1)-W(i) And is andi= i + 1; after that, the routine returns to step S5.
In an embodiment of the present invention, the subroutine is specifically implemented as follows:
(1) assembling the weightsTInputting into a subprogram;
(2) inputting the force value in the main programw；
(3) Initialization procedure, orderjEqual to weight setTNumber of weights therein, i.e.j=length(T)；
(4) Judging the force valuewWhether or not it is greater thanjForce values of block weights, i.e. whether they are satisfiedw>T ( j ) (ii) a If not, the step (5) is reached; if yes, going to the step (6);
(5) order toj=j-1, then returning to step (4);
(6) subtracting the first from the input force valuejThe force value of the block weight is obtained as a new input force valuewI.e. byw=w-T( j )；
(7) Will be provided withjStoring values in a one-dimensional arrayS；
(8) Judging whether the force value is equal to 0, namely whether the force value satisfiesw= 0; if yes, outputting the one-dimensional arrayS(ii) a If not, returning the program to the step (5).
Compared with the prior art, the invention has the following beneficial effects: the method can improve the measurement precision of the dead weight type force standard machine and reduce the influence of uncertainty generated by a weight configuration scheme.
Drawings
Fig. 1 is a block flow diagram of the overall verification process of the present invention.
Fig. 2 is a functional block diagram of a subroutine of the weight optimal configuration method of the present invention.
Detailed Description
The technical scheme of the invention is specifically explained below with reference to the accompanying drawings.
The invention provides a weight optimal configuration method of a high-force-value dead weight type force standard machine, which comprises the following steps of firstly numbering all weights of the high-force-value dead weight type force standard machine from the lowest end to the upper end in sequence to form a weight set; then, sequentially inputting each detection point of the detected sensor into a program according to the order of the force values from small to large; then subtracting the gravity value of a force value transmission structural member in the large-force static gravity type force standard machine from the force value of the first detection point to obtain a residual force value, substituting the residual force value into a subprogram of the weight optimal configuration method to obtain an optimal configuration scheme of the first detection point under the force value, and outputting the scheme in the form of weight number; then, removing the selected weights from the original weight set, and forming a new weight set by the rest weights; then, subtracting the first verification point force value from the second verification point force value to obtain a new residual force value, substituting the new residual force value into the subprogram of the weight optimal configuration method of the force value, selecting an optimal configuration scheme from a new weight set, outputting the scheme of the second verification point in the form of weight number, and removing the weight selected by the verification point from the weight set; repeating the steps until the scheme of the last detection point is obtained.
As shown in fig. 1, the optimal configuration method of the weight of the present invention is implemented as follows:
firstly, all weights of the dead weight type force standard machine are sequentially arranged from the lowest end to the lowest endNumbering and compiling the gravity values of the weights into a set according to the sequence of the numberingTThe collectionTThe data are stored in a program in a one-dimensional array form;
secondly, inputting all the verification points on the detected sensor into a program according to the sequence of the force values from small to large, and using a one-dimensional arrayWStoring the form;
initiating program, orderi=1，R=0；
Fourthly, usingiSubtracting the gravity value of a force value transfer structural member (equivalent to a special-shaped weight) in the static gravity type force standard machine from the force value of the detection point to obtain a residual force valuew；
Fifthly, measure the residual forcewSubprogram of weight optimization configuration method for substituting force value, and the subprogram can be integratedTThe optimal configuration scheme of the weights is selected, and the selected weights are arranged in a one-dimensional arraySStoring the form of (1);
sixthly, in the weight setTRemoving the selected weights, and forming a new set by the rest weightsTI.e. byT=T-S；
Seventhly, obtaining a one-dimensional arraySStoring in a two-dimensional arrayRIn the middle, the output is convenient;
judgment ofiWhether the number of the detection points is equal to the number of the detection points; if it isiIf the number of the detection points is equal to the number of the detection points, the detection scheme is directly outputRThe program is ended; if it isiIf the number of the verification points is not equal to the number of the verification points, the method will beiSubtracting the force value of +1 detection pointiThe force value of each verification point obtains a new residual force valuewI.e. byw=W(i+1)-W(i) And is andi= i + 1; then the program returns to the fifth step.
As shown in fig. 2, the specific implementation of the subroutine is as follows:
firstly, the weights in the main program are collectedTInputting into a subprogram;
② inputting the force value in the main programw；
Initiating program, orderjEqual to weight setTNumber of weights therein, i.e.j=length(T)；
Judging the force valuewWhether or not it is greater thanjForce value of block weight, i.e. whether or notSatisfy the requirement ofw>T ( j ) (ii) a If not, go to the fifth step; if yes, go to the sixth step;
fifthly toj=j1, then returning to the fourth step;
subtracting from the input force valuejThe force value of the block weight is obtained as a new input force valuewI.e. byw=w-T( j )；
Is angry tojStoring values in a one-dimensional arrayS；
Determining whether the force value is equal to 0, namely whether the force value satisfiesw= 0; if yes, outputting the one-dimensional arrayS(ii) a If not, returning the program to the fifth step.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (3)
1. A weight optimal configuration method of a high-force-value dead weight type force standard machine is characterized in that firstly, all weights of the high-force-value dead weight type force standard machine are sequentially numbered from the lowest end to the upper end to form a weight set; then, sequentially inputting each detection point of the detected sensor into a program according to the order of the force values from small to large; then subtracting the gravity value of a force value transmission structural member in the large-force static gravity type force standard machine from the force value of the first detection point to obtain a residual force value, substituting the residual force value into a subprogram of the weight optimal configuration method to obtain an optimal configuration scheme of the first detection point under the force value, and outputting the scheme in the form of weight number; then, removing the selected weights from the original weight set, and forming a new weight set by the rest weights; then, subtracting the first verification point force value from the second verification point force value to obtain a new residual force value, substituting the new residual force value into the subprogram of the weight optimal configuration method of the force value, selecting an optimal configuration scheme from a new weight set, outputting the scheme of the second verification point in the form of weight number, and removing the weight selected by the verification point from the weight set; repeating the steps until the scheme of the last detection point is obtained.
2. The optimal configuration method for the weights of the large-force-value dead weight type force standard machine according to claim 1 is characterized by comprising the following specific implementation steps:
step S1, numbering all weights of the dead weight type force standard machine from the lowest end to the upper end in sequence, and compiling the gravity values of the weights into a set according to the sequence of the numberingTThe collectionTThe data are stored in a program in a one-dimensional array form;
step S2, inputting all the verification points on the detected sensor into the program according to the order of the force values from small to large, and using a one-dimensional arrayWStoring the form;
step S3, initialization program, orderi=1，R=0；
Step S4, useiSubtracting the gravity value of the force value transfer structural member in the static gravity type force standard machine from the force value of the detected point to obtain the residual force valuew；
Step S5, remaining force valuewSubprogram of weight optimization configuration method for substituting force value, and the subprogram can be integratedTThe optimal configuration scheme of the weights is selected, and the selected weights are arranged in a one-dimensional arraySStoring the form of (1);
step S6, collecting the weightsTRemoving the selected weights, and forming a new set by the rest weightsTI.e. byT=T-S；
Step S7, obtaining the one-dimensional arraySStoring in a two-dimensional arrayRPerforming the following steps;
step S8, judgmentiWhether the number of the detection points is equal to the number of the detection points; if it isiIf the number of the detection points is equal to the number of the detection points, the detection scheme is directly outputRThe program is ended; if it isiIf the number of the verification points is not equal to the number of the verification points, the method will beiSubtracting the force value of +1 detection pointiThe force value of each verification point obtains a new residual force valuewI.e. byw=W(i+1)-W(i) And is andi=i+ 1; after that, the routine returns to step S5.
3. The weight optimal configuration method of the large-force-value dead weight type force standard machine according to claim 2, characterized in that the subroutine comprises the following steps:
(1) assembling the weightsTInputting into a subprogram;
(2) inputting the force value in the main programw；
(3) Initialization procedure, orderjEqual to weight setTNumber of weights therein, i.e.j=length(T)；
(4) Judging the force valuewWhether or not it is greater thanjForce values of block weights, i.e. whether they are satisfiedw>T ( j ) (ii) a If not, the step (5) is reached; if yes, going to the step (6);
(5) order toj=j-1, then returning to step (4);
(6) subtracting the first from the input force valuejThe force value of the block weight is obtained as a new input force valuewI.e. byw=w-T( j )；
(7) Will be provided withjStoring values in a one-dimensional arrayS；
(8) Judging whether the force value is equal to 0, namely whether the force value satisfiesw= 0; if yes, outputting the one-dimensional arrayS(ii) a If not, returning the program to the step (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427000.1A CN112556923A (en) | 2020-12-09 | 2020-12-09 | Weight optimal configuration method of large-force-value dead weight type force standard machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011427000.1A CN112556923A (en) | 2020-12-09 | 2020-12-09 | Weight optimal configuration method of large-force-value dead weight type force standard machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112556923A true CN112556923A (en) | 2021-03-26 |
Family
ID=75060109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011427000.1A Pending CN112556923A (en) | 2020-12-09 | 2020-12-09 | Weight optimal configuration method of large-force-value dead weight type force standard machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112556923A (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358892A (en) * | 2008-09-18 | 2009-02-04 | 吉林大学 | Dead weight type standard force source device with counterweight independently loading and unloading |
| CN101706344A (en) * | 2009-07-08 | 2010-05-12 | 中国测试技术研究院 | Independent weight adding force standard machine and independent weight adding method |
| CN202533166U (en) * | 2012-02-24 | 2012-11-14 | 中国测试技术研究院力学研究所 | Metering standard device with single sequence series connected type weights |
| CN103411730A (en) * | 2013-08-27 | 2013-11-27 | 中国测试技术研究院力学研究所 | Weight exchange method and weight exchange device for force standard machine |
| CN104019937A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Sequential weight adding device |
| CN104019938A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Free-combination automatic-weight adding device |
| CN104677479A (en) * | 2015-02-27 | 2015-06-03 | 上海市计量测试技术研究院 | Weight calibration method |
| CN104931195A (en) * | 2015-07-17 | 2015-09-23 | 中国工程物理研究院总体工程研究所 | Calibrating device for high-precision optical fiber pressure sensor and calibrating method |
| CN106289492A (en) * | 2016-08-08 | 2017-01-04 | 山东省计量科学研究院 | A kind of counterweight value component combination checking method |
| CN106323438A (en) * | 2016-08-08 | 2017-01-11 | 山东省计量科学研究院 | Intelligent weight loading and unloading system and control method therefor |
| CN106644260A (en) * | 2017-01-25 | 2017-05-10 | 福建省计量科学研究院 | 2MN dead load overlapping composite-type force standard machine |
| CN106644026A (en) * | 2017-01-25 | 2017-05-10 | 福建省计量科学研究院 | Loading and unloading control method of counterweights of dead-weight force standard machine |
| CN107340047A (en) * | 2016-12-30 | 2017-11-10 | 常州艾克瑞特衡器有限公司 | A kind of weighing apparatus detection, demarcation counterweight |
| CN107764472A (en) * | 2017-11-28 | 2018-03-06 | 陶泽成 | A kind of counterweight combination unit and force measuring machine |
| CN207798341U (en) * | 2017-11-28 | 2018-08-31 | 陶泽成 | A kind of counterweight combination unit and force measuring machine |
| CN108645563A (en) * | 2018-07-11 | 2018-10-12 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of counterweight combination applied in force measuring machine is filled with and force measuring machine |
| CN108760015A (en) * | 2018-07-11 | 2018-11-06 | 广东省计量科学研究院 | A kind of Standard Machine |
| CN110196135A (en) * | 2019-05-09 | 2019-09-03 | 大连普瑞森科技有限公司 | A kind of combination counterweight loading mechanism |
| CN110763321A (en) * | 2019-10-18 | 2020-02-07 | 福建省计量科学研究院（福建省眼镜质量检验站） | Combined type verification method for electronic hanging scale |
| CN210293434U (en) * | 2019-09-20 | 2020-04-10 | 常州市富月砝码有限公司 | Stable small-weight square weight of pile up neatly |
| CN111238722A (en) * | 2020-03-04 | 2020-06-05 | 天津市计量监督检测科学研究院 | Dead weight type force standard machine and force value correction method thereof |
-
2020
- 2020-12-09 CN CN202011427000.1A patent/CN112556923A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358892A (en) * | 2008-09-18 | 2009-02-04 | 吉林大学 | Dead weight type standard force source device with counterweight independently loading and unloading |
| CN101706344A (en) * | 2009-07-08 | 2010-05-12 | 中国测试技术研究院 | Independent weight adding force standard machine and independent weight adding method |
| CN202533166U (en) * | 2012-02-24 | 2012-11-14 | 中国测试技术研究院力学研究所 | Metering standard device with single sequence series connected type weights |
| CN103411730A (en) * | 2013-08-27 | 2013-11-27 | 中国测试技术研究院力学研究所 | Weight exchange method and weight exchange device for force standard machine |
| CN104019937A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Sequential weight adding device |
| CN104019938A (en) * | 2014-05-27 | 2014-09-03 | 大连工业大学 | Free-combination automatic-weight adding device |
| CN104677479A (en) * | 2015-02-27 | 2015-06-03 | 上海市计量测试技术研究院 | Weight calibration method |
| CN104931195A (en) * | 2015-07-17 | 2015-09-23 | 中国工程物理研究院总体工程研究所 | Calibrating device for high-precision optical fiber pressure sensor and calibrating method |
| CN106289492A (en) * | 2016-08-08 | 2017-01-04 | 山东省计量科学研究院 | A kind of counterweight value component combination checking method |
| CN106323438A (en) * | 2016-08-08 | 2017-01-11 | 山东省计量科学研究院 | Intelligent weight loading and unloading system and control method therefor |
| CN107340047A (en) * | 2016-12-30 | 2017-11-10 | 常州艾克瑞特衡器有限公司 | A kind of weighing apparatus detection, demarcation counterweight |
| CN106644260A (en) * | 2017-01-25 | 2017-05-10 | 福建省计量科学研究院 | 2MN dead load overlapping composite-type force standard machine |
| CN106644026A (en) * | 2017-01-25 | 2017-05-10 | 福建省计量科学研究院 | Loading and unloading control method of counterweights of dead-weight force standard machine |
| CN107764472A (en) * | 2017-11-28 | 2018-03-06 | 陶泽成 | A kind of counterweight combination unit and force measuring machine |
| CN207798341U (en) * | 2017-11-28 | 2018-08-31 | 陶泽成 | A kind of counterweight combination unit and force measuring machine |
| CN108645563A (en) * | 2018-07-11 | 2018-10-12 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of counterweight combination applied in force measuring machine is filled with and force measuring machine |
| CN108760015A (en) * | 2018-07-11 | 2018-11-06 | 广东省计量科学研究院 | A kind of Standard Machine |
| CN110196135A (en) * | 2019-05-09 | 2019-09-03 | 大连普瑞森科技有限公司 | A kind of combination counterweight loading mechanism |
| CN210293434U (en) * | 2019-09-20 | 2020-04-10 | 常州市富月砝码有限公司 | Stable small-weight square weight of pile up neatly |
| CN110763321A (en) * | 2019-10-18 | 2020-02-07 | 福建省计量科学研究院（福建省眼镜质量检验站） | Combined type verification method for electronic hanging scale |
| CN111238722A (en) * | 2020-03-04 | 2020-06-05 | 天津市计量监督检测科学研究院 | Dead weight type force standard machine and force value correction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 葛柱 等: "2MN静重式力标准机吊挂系统摆动动力学分析", 《中国测试》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106295250A (en) | Method and device is analyzed in the quick comparison of the short sequence of secondary order-checking | |
| CN107301282B (en) | Concrete dam mechanical parameter inversion method based on multi-source monitoring time sequence data | |
| CN101718528B (en) | Digital image based rapid solving method of circle parameters | |
| CN109241601B (en) | Numerical control machine tool comprehensive performance evaluation method based on improved pulling-out grade method | |
| CN102566424B (en) | Method for executing layout optimization on model analysis measurable nodes of numerical control machining equipment | |
| CN107688589A (en) | The method and device of Database System Optimization | |
| CN109545290A (en) | A kind of amorphous alloy free volume detection method based on Voronoi fractal technology | |
| CN111640296B (en) | Traffic flow prediction method, system, storage medium and terminal | |
| CN112556923A (en) | Weight optimal configuration method of large-force-value dead weight type force standard machine | |
| CN115470672A (en) | Spatial residual stress reconstruction method | |
| CN111398780A (en) | Circuit board temperature distribution rapid test method based on small amount of measuring point data | |
| CN102269581B (en) | Machining precision evaluation method of architectural component | |
| CN102944184A (en) | Device and method for machine vision detection of plastic deformation of girder or cargo boom of lifting appliance | |
| CN106443115B (en) | Depth-based oscilloscope with storage function | |
| CN107024401A (en) | Obtain the method and system of metal material anisotropy and tension and compression asymmetry | |
| CN101464788B (en) | Device for checking whether binary number is multiple of three, and checking chip thereof | |
| CN101498572A (en) | Cam two-dimensional curve measuring method | |
| CN103605063B (en) | The port error value feedback system of test multiport device and method | |
| CN100427902C (en) | Power balance parameter measurement processing device and power balance method for multi-path laser system | |
| CN106382906A (en) | Engine cylinder body crankshaft hole diameter measurement tool | |
| CN208059812U (en) | A kind of rapid measurement device of lower cylinder body balance aperture axis and circularity | |
| CN204902694U (en) | Aperture measuring device | |
| CN107038721A (en) | A kind of line detection method based on LAPJV algorithms | |
| CN103994744B (en) | Tooth profile measuring method | |
| CN111340940B (en) | Method for searching repeated ARNOLD material and plug-in thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210326 |
|
| RJ01 | Rejection of invention patent application after publication |