CN102954777A - System and method for measuring structure - Google Patents
System and method for measuring structure Download PDFInfo
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- CN102954777A CN102954777A CN201110241728XA CN201110241728A CN102954777A CN 102954777 A CN102954777 A CN 102954777A CN 201110241728X A CN201110241728X A CN 201110241728XA CN 201110241728 A CN201110241728 A CN 201110241728A CN 102954777 A CN102954777 A CN 102954777A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005259 measurement Methods 0.000 claims description 14
- 238000002372 labelling Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 description 7
- 239000006059 cover glass Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
The invention provides a system and a method for measuring a structure. The system for measuring the structure comprises a supporting and fixing device and a sensor array, wherein the supporting and fixing device comprises support legs contacting with the lower surface of the structure when the structure is loaded on the supporting and fixing device; and the sensor array comprises a plurality of sensors and is used for measuring the height of the support legs to be as reference height when the structure is not loaded on the supporting and fixing device, and measuring the height of a preset position of the structure when the structure is loaded on the supporting and fixing device.
Description
Technical field
The present invention generally relates to for the system and method for measuring structure (structure), in particular to being used for measuring a structure to determine simultaneously the thickness (thickness) of this structure and the system and method for flatness (flatness).
Background technology
Usually, the thickness measure of structure and flatness measurement are respectively independent execution.Many optical meanss are used to determine flatness, and machinery or optical means can be used for determining thickness.Yet, do not have known existing scheme to have advantages of simultaneously multiple measurement thickness and flatness.
Summary of the invention
According to an aspect of the present invention, a kind of system for measuring a structure is provided, comprise: supporting adn fixing device (support fixture), it comprises the supporting leg that contacts with the lower surface of described structure when described structure is loaded on the described supporting adn fixing device; And sensor array, it comprises a plurality of sensors, be used in the situation that described structure is not loaded in the height of the described supporting leg of described supporting adn fixing device measurement as altitude datum, and when described structure is loaded on the described supporting adn fixing device, measure the height of pre-position on the described structure.
According to a further aspect in the invention, a kind of method for measuring a structure is provided, comprise that the height of the supporting leg of measuring supporting adn fixing device as altitude datum, is loaded into described structure on the described supporting adn fixing device, and measure the height of described structural pre-position.
Description of drawings
Read following detailed description by connection with figures and can understand better above and other feature and advantage of the present invention, same or analogous label is used in reference to same or analogous element of generation in the accompanying drawing, wherein:
Fig. 1 shows according to the embodiment of the invention and is used for measuring a structure to determine simultaneously the thickness of structure and the system of flatness;
Fig. 2 A has been shown in further detail tested panel;
Fig. 2 B has been shown in further detail supporting adn fixing device;
Fig. 3 illustrates for measuring the process flow diagram of a structure with the method for the thickness of determining simultaneously structure and flatness;
Fig. 4 A schematically shows the measurement of altitude datum;
Fig. 4 B and 4C schematically show panel are loaded on the supporting adn fixing device;
Fig. 4 D schematically shows the measurement of the height of pre-position on the counter plate;
Fig. 4 E shows the precalculated position on the panel; And
Fig. 5 shows the flow process of the whole measuring process of counter plate before panel is installed in the laptop system.
Embodiment
The invention provides for measuring a structure to determine simultaneously the thickness of structure and the system and method for flatness.This has improved the throughput in the measurement environment and has reduced operational risk.
Embodiments of the invention are described below with reference to the accompanying drawings.
Fig. 1 shows according to the embodiment of the invention and is used for measuring a structure to determine simultaneously the thickness of structure and the system 1 of flatness.As shown in Figure 1, system 1 comprises sensor array 11, controller 12 and supporting adn fixing device 13.System 1 is measured by geodesic structure 14 to determine simultaneously thickness and the flatness of structure 14.
In one embodiment, system also can comprise: bar-code scanner or other ID recording unit (not shown), for the bar code or other ID that read this structure; And/or bar code generator/printer or other ID maker/printer (not shown), be used for to be structural generation/printing bar code or ID based on the result of the measurement of carrying out in system.Bar-code scanner and bar code printer can be mutually integrated with controller 12 or can be separated with controller 12.
In a particular embodiment, structure 14 is panels.The panel here can be the touch-sensitive panel that strict demand is arranged for its thickness and flatness, for example is used for the touch pad of laptop computer.As shown in Figure 1, the tested panel among this embodiment generally comprises three layers.Being configured among Fig. 2 A of panel is shown in further detail.Shown in Fig. 2 A, structure 14 comprises cover glass (cover glass, CG) 141, touch sensor 142 and reinforcing member (stiffener) 143.Touch sensor 142 can be made of printed circuit board (PCB) (PCB).In addition, one or more screws 144 can be arranged reinforcing member 143 is interior.
Although note that in this embodiment to be illustrated as responsive panel by geodesic structure, the present invention is not limited to this.It will be apparent to those skilled in the art that by geodesic structure can be any part, parts, module, subassembly, element or any other structure that will determine its thickness and flatness for any purpose.
Return Fig. 1, supporting adn fixing device 13 is used for supporting construction 14.Supporting adn fixing device 13 comprises one or more supporting legs 131, and the one or more supporting leg 131 will contact with the lower surface of structure 14 when structure 14 is loaded on the structure 14.In other words, supporting leg 131 is for the contact plane of guaranteeing for the lower surface of supporting construction.Supporting adn fixing device 13 also can comprise plate 132, and supporting leg 131 is pacified the ad-hoc location that invests on the plate 132.In one embodiment, plate 132 can be rectangular slab.Yet the present invention is not limited to this.Plate 132 can have any other shape.
Be in the specific embodiment of the panel shown in Fig. 2 A in this structure, supporting adn fixing device 13 can have the corresponding structure shown in Fig. 2 B.Shown in Fig. 2 B, supporting adn fixing device 13 comprises three supporting legs 131 for the lower surface of support panel.Near two screws 144 that are positioned in the reinforcing member 143 in these three supporting legs.These supporting legs can be oriented to rest burr or other protruding features of being associated with screw on.In this specific embodiment, near the thickness each screw 144 is considered to the critical size with regard to the final performance of test panel.Yet the present invention is not limited to this.As what it will be appreciated by those skilled in the art that, the number of supporting leg and position can suitably be selected according to specific implementation.In addition, supporting adn fixing device 13 also can have protruding features near the edge, to be used for the mechanical registeration of this structure.
In addition, system 1 also can comprise the mechanism's (not shown) that contacts with this structure be used to sensor array 11 is moved to.The typical mechanism that is used for this purpose can be motor-driven ladder or cylinder.
Describe referring now to Fig. 3-6 and be used for to measure a structure to determine simultaneously the thickness of this structure and the method for flatness according to the embodiment of the invention.
Fig. 3 illustrates for measuring the process flow diagram of a structure with the method for the thickness of determining simultaneously this structure and flatness.
The method starts from step S11, utilizes the known nominal geometric shape of structure 14 that supporting adn fixing device 13 is aimed at sensor array 11 in this step.This guaranteed that each supporting leg 131 is directly aimed at the single-sensor in the array and array in all the other sensors will drop on the correct measurement point.
In step S12, utilize the altitude datum of the respective sensor measurement supporting leg 131 of sensor array 11.This calibration steps is shown in Fig. 4 A.In this step, sensor array 11 is contacted with supporting leg, then at this altitude datum place each sensor setting is arrived null value.In addition, can measure the sample (i.e. " golden sample ") of known geometric shape to guarantee the accuracy of calibration steps.
In step S 13, panel 14 is loaded on the supporting adn fixing device 13.This step is shown in Fig. 4 B and the 4C.Can panel 14 be loaded on the supporting adn fixing device 13 with hand or diamond pickup tube.Then contact registration panel 14 by the protruding alignment characteristics that panel 14 is moved on one or more edges with supporting adn fixing device 13, correctly aim at sensor array 11 to guarantee panel.
In step S14, measure the height of pre-position, shown in Fig. 4 D.Be in the specific embodiment of the touch panel shown in Fig. 2 A in structure 14, the measurement at screw and stop tip is installed for system and function is vital.Fig. 4 E shows precalculated position on the panel with " X " symbol, and wherein the position of actual thickness is known in thick " X " expression based on the height of supporting leg.Note, the present invention is not limited to these positions, thereby and is defined as key and wants number and the position of measured point suitably to arrange according to specific implementation.
In step S15, calculate the thickness of panel 14.The thickness of panel 14 is to come in the following way to determine: read sensor shift value and this shift value compared with the zero point of establishing during calibration steps when the sensor that detects supporting adn fixing device 13 contacts with upper surface in the pre-position of the upper surface of panel 14.For three sensors corresponding with the supporting leg position, one-tenth-value thickness 1/10 is accurate in the measuring error scope of single-sensor.For each all the other sensing station, may have extra error, this extra error come from point corresponding with sensing station on the lower surface of panel and the benchmark zero plane that in calibration steps, calculates between difference.Like this, can measure three most critical positions with pinpoint accuracy, the additional thickness data of other points on panel of also can collecting simultaneously.Utilize method of the present invention, the degree of accuracy of THICKNESS CALCULATION can be about 10 μ m.The difference of the sensor values that in addition, other features on the upper surface of ladder height or panel (for example most advanced and sophisticated ladder to the cover glass upper surface of stop) can be by obtaining the pair of sensors on the every one side that drops on this ladder is measured.
In step S16, the flatness of assessment panel.In order to assess flatness, carry out the calculating to the minor increment between the parallel plane that can comprise all measured values.Can determine the upper limit of flatness by the difference that rounds maximum sensor readings on the panel and minimum sensor reading, but its degree of accuracy depends on the verticality of sensor and reference plane.
In step S17, generate report.This report can comprise the height, the panel that calculates of pre-position of altitude datum, panel of supporting leg at the thickness of pre-position and about the assessment result of the flatness of panel, etc.
Reflect in thickness by the said method counter plate and the measurement of flatness and the bar code that definite result can be encoded into panel and by the one or more labeling that are attached on the panel.Below with reference to Fig. 5 this point is described.
Fig. 5 shows the flow process of the whole test process of counter plate before panel is installed to laptop system.The movement of solid line presentation-entity article, and dotted line represents the transmission of data.
As shown in Figure 5, the bar code of the PCB of scanning panel in step S21-A, and in step S21-B, scan the bar code that is used for panel is connected to the rubber-insulated wire of laptop system.
In step S22, utilize method shown in Figure 3 to determine thickness and the flatness of panel, and the thickness at select location place is used to a minute storehouse (binning) on the panel.This is more detailed description below.
For touch panel, four positions may be crucial for filling (shimming).Particularly, the thickness of the position A shown in Fig. 4 E and B place panel, and the height of the height of the ladder from E to H and the ladder from G to J is crucial.
Thereby the mean value of two rear points (A and B) is the value that will report, and the mean value of two front variance yields (E-H and G-J) is another value that will report.Therefore, for a minute storehouse, can calculate following each:
Average[(E place sensor reading-H place sensor reading), (G place sensor reading-H place sensor reading)]
Average[(A place sensor reading-A place altitude datum), (B place sensor reading-B place altitude datum)]
In one embodiment of this invention, determined six storehouses (bin) for each value that will report, each storehouse is corresponding to the value of a certain scope.Thereby the value of each report can be classified into one of six storehouses based on the numerical range under this value.Thereby, will generate two corresponding with rear mean value (A and B) and the place ahead mean value (E-H, G-J) respectively storehouse information.
Note, the present invention is not limited to this, and the number in storehouse can suitably be arranged by those skilled in the art with the numerical range corresponding with each storehouse.
In step S23, preferably, after the thickness of measuring panel and flatness, rubber-insulated wire is connected to panel.Can before carrying out the measurement of thickness and flatness, rubber-insulated wire be connected to panel module, but this order not preferred.
In step S24, utilize PCB bar code, the rubber-insulated wire bar code that in step S21-B, scans in step S21-A, scan and the storehouse information of in step S22, obtaining, generate the bar code of the module that comprises the panel that intercouples together and rubber-insulated wire.
Particularly, the storehouse state of the position of each report is encoded in the bar code of module.For the coding of storehouse state, for example can use 2 characters of the three-character doctrine CCC code (configuration code) of bar code.With the example of storehouse state encoding in the CCC code shown in the following table I.
| |
CCC character 2 | Average storehouse, rear | Average storehouse, the place ahead |
| 0 | 0 | 1 | 1 |
| 1 | 0 | 1 | 2 |
| 2 | 0 | 1 | 3 |
| 3 | 0 | 1 | 4 |
| 4 | 0 | 1 | 5 |
| 5 | 0 | 1 | 6 |
| 6 | 0 | 2 | 1 |
| 7 | 0 | 2 | 2 |
| 8 | 0 | 2 | 3 |
| 9 | 0 | 2 | 4 |
| A | 0 | 2 | 5 |
| B | 0 | 2 | 6 |
| C | 0 | 3 | 1 |
| D | 0 | 3 | 2 |
| E | 0 | 3 | 3 |
| F | 0 | 3 | 4 |
| G | 0 | 3 | 5 |
| H | 0 | 3 | 6 |
| J | 0 | 4 | 1 |
| K | 0 | 4 | 2 |
| L | 0 | 4 | 3 |
| M | 0 | 4 | 4 |
| N | 0 | 4 | 5 |
| P | 0 | 4 | 6 |
| Q | 0 | 5 | 1 |
| R | 0 | 5 | 2 |
| S | 0 | 5 | 3 |
| T | 0 | 5 | 4 |
| U | 0 | 5 | 5 |
| V | 0 | 5 | 6 |
| W | 0 | 6 | 1 |
| X | 0 | 6 | 2 |
| Y | 0 | 6 | 3 |
| Z | 0 | 6 | 4 |
| 0 | 1 | 6 | 5 |
| 1 | 1 | 6 | 6 |
Table I
Except the CCC code that is used for coding storehouse state, other parts of the bar code of module can reflect PCB bar code, rubber-insulated wire bar code and other relevant informations.
Then, in step S27, carry out the subsequent process relevant with module integration, for example tamper-evident sealing (tamper sealing), test etc.
Next, in step S28, attach the diaphragm (PF) of upper module.
In step S29, labeling is attached to ad-hoc location on the module to utilize its shape and color to come the indication bin state.The storehouse number and be used to indicate the average ladder height in the place ahead the storehouse state the place ahead labeling and be used to indicate the shape of rear labeling of storehouse state of rear average thickness and the exemplary corresponding relation between the color shown in the following Table II.
Table II
Although described specific embodiments more of the present invention, but it will be appreciated by those skilled in the art that, can carry out various modifications, combination and change to the present invention, and the present invention has comprised the modification, combination and the change that fall within the scope of the appended claims.
Claims (14)
1. system of be used for measuring a structure comprises:
Supporting adn fixing device, it comprises the supporting leg that contacts with the lower surface of described structure when described structure is loaded on the described supporting adn fixing device; And
Sensor array, it comprises a plurality of sensors, be used in the situation that described structure is not loaded in the height of the described supporting leg of described supporting adn fixing device measurement as altitude datum, and when described structure is loaded on the described supporting adn fixing device, measure the height of pre-position on the described structure.
2. the system as claimed in claim 1 also comprises the controller that is coupled to described sensor array, and this controller is configured to calculate described structure at the thickness of described pre-position based on the height that described altitude datum and described pre-position measure.
3. system as claimed in claim 2, wherein said controller also is configured to assess based on the height that described altitude datum and described pre-position measure the flatness of described structure.
4. the system as claimed in claim 1, wherein, near the one or more screws that are positioned in the described structure in the described supporting leg.
5. system as claimed in claim 2 also comprises the bar code generator, the bar code of the thickness that is used to described structural generation to encode to calculate.
6. system as claimed in claim 2 wherein, reflects that the labeling of the thickness that calculates is attached on the described structure.
7. the system as claimed in claim 1, wherein, described structure is the touch-sensitive panel.
8. method of be used for measuring a structure comprises:
The height of the supporting leg of measurement supporting adn fixing device is as altitude datum;
Described structure is loaded on the described supporting adn fixing device; And
Measure the height of described structural pre-position.
9. method as claimed in claim 8 comprises that also the height that measures based on described altitude datum and described pre-position calculates described structure at the thickness of described pre-position.
10. method as claimed in claim 8 comprises that also the height that measures based on described altitude datum and described pre-position assesses the flatness of described structure.
11. method as claimed in claim 8 wherein, is loaded into described structure and comprises on the described supporting adn fixing device near the one or more screws that are positioned in the described structure in the described supporting leg.
12. method as claimed in claim 9 also is included as the encoded bar code of the thickness that calculates of described structural generation.
13. method as claimed in claim 9 comprises that also the paste labels of the thickness that reflection is calculated is attached on the described structure.
14. the method for claim 1, wherein described structure is the touch-sensitive panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110241728.XA CN102954777B (en) | 2011-08-18 | 2011-08-18 | For measuring the system and method for structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110241728.XA CN102954777B (en) | 2011-08-18 | 2011-08-18 | For measuring the system and method for structure |
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| CN102954777A true CN102954777A (en) | 2013-03-06 |
| CN102954777B CN102954777B (en) | 2016-01-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982530A (en) * | 2020-07-23 | 2020-11-24 | 浙江埃科汽车技术服务有限公司 | Automobile detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146504A (en) * | 1998-11-06 | 2000-05-26 | Ahresty Corp | Product supporting device for measuring strain and flatness thereof |
| CN2704026Y (en) * | 2003-02-18 | 2005-06-08 | 武汉大学 | Automobile load-quantity digital displaying and running state recorder and requiring instrument thereof |
| CN101055172A (en) * | 2006-04-14 | 2007-10-17 | 深圳富泰宏精密工业有限公司 | Planeness and parallelism test system and test method |
| CN201583227U (en) * | 2010-01-21 | 2010-09-15 | 成都斯锐特钨钢刀具有限公司 | Plane precision measuring instrument |
| CN102135408A (en) * | 2010-12-21 | 2011-07-27 | 深圳市昌红模具科技股份有限公司 | Method for measuring planarity of printer part |
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2011
- 2011-08-18 CN CN201110241728.XA patent/CN102954777B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146504A (en) * | 1998-11-06 | 2000-05-26 | Ahresty Corp | Product supporting device for measuring strain and flatness thereof |
| CN2704026Y (en) * | 2003-02-18 | 2005-06-08 | 武汉大学 | Automobile load-quantity digital displaying and running state recorder and requiring instrument thereof |
| CN101055172A (en) * | 2006-04-14 | 2007-10-17 | 深圳富泰宏精密工业有限公司 | Planeness and parallelism test system and test method |
| CN201583227U (en) * | 2010-01-21 | 2010-09-15 | 成都斯锐特钨钢刀具有限公司 | Plane precision measuring instrument |
| CN102135408A (en) * | 2010-12-21 | 2011-07-27 | 深圳市昌红模具科技股份有限公司 | Method for measuring planarity of printer part |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982530A (en) * | 2020-07-23 | 2020-11-24 | 浙江埃科汽车技术服务有限公司 | Automobile detector |
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