CN102455170A - Method and device for measuring eccentric distance of small pole - Google Patents
Method and device for measuring eccentric distance of small pole Download PDFInfo
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- CN102455170A CN102455170A CN2010105172133A CN201010517213A CN102455170A CN 102455170 A CN102455170 A CN 102455170A CN 2010105172133 A CN2010105172133 A CN 2010105172133A CN 201010517213 A CN201010517213 A CN 201010517213A CN 102455170 A CN102455170 A CN 102455170A
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Abstract
The invention relates to a method and a device for measuring the eccentric distance of a small pole. In the method for measuring the eccentric distance of the small pole, a rolling unit, an image pickup unit and an image processing unit can be used for measuring the eccentric distance of the small pole to be measured. The method for measuring the eccentric distance of the small pole disclosed by the invention comprises the following steps of: putting the pole body of the small pole to be measured onto the rolling unit, and rotating the small pole to be measured around a pole axle center of the pole body; continuously picking up a plurality of image data by using the image pickup unit, and transmitting the image data to the image processing unit; calculating an approximate circle by using the image processing unit, wherein the circle center of the approximate circle is equivalent to the position of the pole axle center; and displaying the length of an approximate circle radius of the approximate circle on a display module of the image processing unit, wherein the length of the approximate circle radius is the eccentric distance of the small pole to be measured.
Description
Technical field
The present invention relates to a kind of method for measurement and measuring equipment, particularly relate to a kind of pole stock eccentric distance method for measurement and pole stock eccentric distance measuring equipment that is used for measuring pole stock.
Background technology
General pole stock, for example microscler nail, screw or axostylus axostyle etc. all have a shaft and an end face, and in order to reach good installation precision and work smoothness, a central point of this end face must accurately be positioned on the axle center of this shaft.The act screw is an example, and it all comprises the shaft of a strip, a spiral shell head that is connected this shaft one end, and the work nest from this spiral shell head surface depression.This work nest can provide the instrument card to establish, and installs with the mode of rotation, so the axle center of the central point of this work nest and this shaft must be on same straight line, and so screw can firmly and accurately be installed.For the central point that makes this work nest can be positioned on the axle center of this shaft; In the process of producing; Must measure the error between the axle center of this work nest central point and this shaft, eccentric distance just, and utilize the data of this eccentric distance further to adjust production equipment; Like pressing equipment, improve the precision of screw.
Be to utilize a clock gauge to carry out the measurement of eccentric distance traditionally, and the edge of this probe along this work nest moved with hand-held mode with a probe, and the record variation of data down, further calculate eccentric distance.Yet, in the work nest size hour, can make the precision deficiency because probe is meticulous inadequately; In addition; When the shape of work nest is complicated, also increased the complexity of data on calculating, must spend great amount of time and calculate; Therefore, the method for measurement of traditional eccentric distance has the not enough and inefficient shortcoming of precision.
This shows that above-mentioned existing pole stock eccentric distance method for measurement and pole stock eccentric distance measuring equipment obviously still have inconvenience and defective, and demand urgently further improving in method, product structure and use.In order to solve the problem of above-mentioned existence; Relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly; But do not see always that for a long time suitable design is developed completion; And conventional method and product do not have appropriate method and structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new pole stock eccentric distance method for measurement and pole stock eccentric distance measuring equipment, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective that existing pole stock eccentric distance method for measurement exists, and a kind of new pole stock eccentric distance method for measurement is provided, technical matters to be solved is to make it can improve precision and measurement efficient, is very suitable for practicality.Another object of the present invention is; Overcome the defective that existing pole stock eccentric distance measuring equipment exists; And a kind of new pole stock eccentric distance measuring equipment is provided; Technical matters to be solved is to make it can be used for realizing having the measurement than the pole stock eccentric distance of high accurancy and precision and measurement efficient, thereby is suitable for practicality more.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.A kind of pole stock eccentric distance method for measurement according to the present invention's proposition; Be to utilize a pole stock eccentric distance measuring equipment to measure the eccentric distance of a pole stock to be measured; This pole stock eccentric distance measuring equipment comprises: a rolling unit, an image acquisition unit that comprises a camera lens; And image process unit that comprises a display module; This pole stock to be measured comprises a shaft that comprises a bar axle center, and an end face that is positioned at an end of this shaft, and this eccentric distance is the distance between the central point of bar axle center and this end face of this shaft; This pole stock eccentric distance method for measurement comprises following steps: the shaft of this pole stock to be measured is seated on this rolling unit, and makes this pole stock to be measured around the rotation of the bar axle center of this shaft; (B) utilize this image acquisition unit successively to capture several image datas, each image data all comprises an end face image corresponding to this end face; (C) send said image data to this image process unit; (D) this image process unit calculates an approximate circle, and the center of circle of this approximate circle is equivalent to the position in this bar axle center; And (E) length of an approximate circle radius of this approximate circle is presented on the display module of this image process unit, the length of this approximate circle radius is the eccentric distance of this pole stock to be measured.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
Preferably, aforesaid pole stock eccentric distance method for measurement is put, and wherein in step (A), the end face of this pole stock to be measured is to be positioned between the camera lens and this rolling unit of this image acquisition unit, in step (B), this camera lens be with this shaft abreast towards this end face.
Preferably; Aforesaid pole stock eccentric distance method for measurement is put; Wherein in step (D); This image process unit is in said image data, to set a coordinate, and to should coordinate calculating in each image data the label corresponding to an image center point of an end face image of this end face.
The object of the invention and solve its technical matters and also adopt following technical scheme to realize.A kind of pole stock eccentric distance measuring equipment according to the present invention's proposition; Be used for measuring the eccentric distance of a pole stock to be measured; This pole stock to be measured comprises a shaft that comprises a bar axle center, and position is the end face of an end of this shaft, and this eccentric distance is the distance between the central point of bar axle center and this end face of this shaft; This pole stock eccentric distance measuring equipment comprises: a rolling unit can supply this shaft installing and drive this shaft around this bar axle center rotation; An image acquisition unit is installed in a side of this rolling unit at intervals with this rolling unit, and can successively captures several image datas; And image process unit; Be electrically connected with this image acquisition unit; And comprise that a said image data capable of using calculates the computing module module of the eccentric distance of this pole stock to be measured, and demonstration module module that is electrically connected and can shows this eccentric distance with this computing module module.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
Preferably; Aforesaid pole stock eccentric distance measuring equipment; Wherein said rolling unit has two and is provided with at interval and rotatable cylinder; But this image acquisition unit comprises a camera lens towards the end face of this pole stock to be measured, one and is installed in around this camera lens and luminous light source, and the sensitive piece that can light be converted into electric signal.
The present invention compared with prior art has tangible advantage and beneficial effect.Can know by above technical scheme; For achieving the above object; The invention provides a kind of eccentric distance method for measurement; Be to utilize a pole stock eccentric distance measuring equipment to measure the eccentric distance of a pole stock to be measured, this pole stock to be measured comprises a shaft that comprises a bar axle center, and one be positioned at an end of this shaft end face.And this eccentric distance is the distance between the central point of bar axle center and this end face of this shaft.
Said pole stock eccentric distance measuring equipment comprises: a rolling unit, an image acquisition unit, and an image process unit.This rolling unit can supply this shaft installing, and can drive this shaft around this bar axle center rotation.This image acquisition unit and this rolling unit are installed in a side of this rolling unit at intervals, and can successively capture several image datas.This image process unit is electrically connected with this image acquisition unit, and comprises a computing module, and a display module.This computing module said image data capable of using calculates the eccentric distance of this pole stock to be measured, and this display module is electrically connected with this computing module, and can show this eccentric distance.
The rolling unit of said pole stock eccentric distance measuring equipment has two and is provided with at interval and rotatable cylinder; But this image acquisition unit comprises a camera lens towards the end face of this pole stock to be measured, one and is installed in around this camera lens and luminous light source, and the sensitive piece that can light be converted into electric signal.
This eccentric distance method for measurement comprises following steps:
(A) shaft of this pole stock to be measured is seated on this rolling unit, and makes this pole stock to be measured around the rotation of the bar axle center of this shaft, the end face of this pole stock to be measured is to be positioned between the camera lens and this rolling unit of this image acquisition unit;
(B) utilize this image acquisition unit successively to capture several image datas, each image data all comprises an end face image corresponding to this end face, this camera lens be with this shaft abreast towards this end face;
(C) send said image data to this image process unit;
(D) this image process unit calculates an approximate circle; The center of circle of this approximate circle is equivalent to the position in this bar axle center; Said image process unit is in said image data, to set a coordinate, and to should coordinate calculating in each image data the label corresponding to an image center point of an end face image of this end face; And
(E) length with an approximate circle radius of this approximate circle is presented on the display module of this image process unit, and the length of this approximate circle radius just is the eccentric distance of this pole stock to be measured.
By technique scheme; Pole stock eccentric distance method for measurement of the present invention and pole stock eccentric distance measuring equipment have advantage and beneficial effect at least: but the present invention utilizes rolling unit to make the rotation of screw rod distaff to be measured axle center; An and acquisition number image data that utilizes image acquisition unit to continue; Calculate the eccentric distance of pole stock to be measured again with the image arithmetic element, to reach the purpose of the eccentric distance that measures this pole stock to be measured precisely and efficiently.
In sum, the invention relates to a kind of pole stock eccentric distance method for measurement and pole stock eccentric distance measuring equipment.This pole stock eccentric distance method for measurement; A rolling unit capable of using, image acquisition unit and image process unit measure the eccentric distance of a pole stock to be measured; Pole stock eccentric distance method for measurement of the present invention; Comprise following steps: the shaft of this pole stock to be measured is seated on this rolling unit, and makes of the bar axle center rotation of this pole stock to be measured around this shaft.Then utilize this image acquisition unit successively to capture several image datas, and send said image data to this image process unit.This image process unit calculates an approximate circle, and the center of circle of this approximate circle is equivalent to the position in this bar axle center.At last, the length with an approximate circle radius of this approximate circle is presented on the display module of this image process unit, and the length of this approximate circle radius is the eccentric distance of this pole stock to be measured.The present invention also provides a kind of pole stock eccentric distance measuring equipment.The present invention has obvious improvement technically, and has tangible good effect, really is the new design of a novelty, progress, practicality.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of instructions, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the side view of a pole stock eccentric distance measuring equipment that shows a preferred embodiment of pole stock eccentric distance method for measurement of the present invention.
Fig. 2 shows that mainly a pole stock to be measured of present embodiment is installed in the phantom view of two situations between cylinder.
Fig. 3 is the phantom view that a shaft of main this pole stock to be measured of demonstration of a similar Fig. 2 is installed in the situation between said cylinder.
Fig. 4 is the flow diagram that shows a plurality of steps of pole stock eccentric distance method for measurement of the present invention.
Fig. 5 is the wherein synoptic diagram of an image data that mainly shows pole stock eccentric distance method for measurement of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To pole stock eccentric distance method for measurement and its embodiment of pole stock eccentric distance measuring equipment, method, step, structure, characteristic and the effect thereof that proposes according to the present invention, specify as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to appear in the following detailed description that cooperates with reference to graphic preferred embodiment.Through the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to obtain one more deeply and concrete understanding to the present invention, yet the appended graphic usefulness that only provides reference and explanation be not to be used for the present invention is limited.
See also Fig. 1, Fig. 2, Fig. 3 and shown in Figure 5, Fig. 1 is the side view of a pole stock eccentric distance measuring equipment that shows a preferred embodiment of pole stock eccentric distance method for measurement of the present invention.Fig. 2 shows that mainly a pole stock to be measured of present embodiment is installed in the phantom view of two situations between cylinder.Fig. 3 is the phantom view that a shaft of main this pole stock to be measured of demonstration of a similar Fig. 2 is installed in the situation between said cylinder.Fig. 5 is the wherein synoptic diagram of an image data that mainly shows pole stock eccentric distance method for measurement of the present invention.A preferred embodiment of pole stock eccentric distance method for measurement of the present invention, a pole stock eccentric distance measuring equipment capable of using is measured the eccentric distance of a pole stock 2 to be measured.It should be noted that; The pole stock to be measured 2 of present embodiment is a screw; And comprise: shaft that comprises a bar axle center 211 21, one are connected the spiral shell head 22 of these shaft 21 1 ends, the work nests 24 from these spiral shell head 22 surface depressions, and an end face 23 that is positioned at an end of this shaft 21.This end face 23 is positioned at this work nest 24, and shape is corresponding to this work nest 24, and this end face 23 comprises a central point 231 that is positioned at the center.
This eccentric distance measuring equipment comprises: base 3, one are installed in rolling unit 4 on this base 3, one and are installed in the image acquisition unit 5 that compartment of terrain on this base 3 is positioned at these rolling unit 4 one sides, and an image process unit 6 that is electrically connected with this image acquisition unit 5.
This rolling unit 4 comprises a rotating power spare 41, the seat 42 that rolls, and two compartment of terrains are installed in the cylinder 43 in this rollings 42.Said cylinder 43 is long tubulars, and laterally arranges, and can and rotate by 41 drives of this power spare.In this preferred embodiment, this power spare 41 is motors.
This image acquisition unit 5 comprises the sensitive piece 53 that a camera lens 51, are installed in around this camera lens 51 and but luminous light source 52, can convert light electric signal to and store, but and the storage member 54 of a store digital data.This camera lens 51 is provided with towards said cylinder 43.The shooting that this image acquisition unit 5 can continue, and several the image datas 8 that will capture are stored in this storage member 54.In this preferred embodiment, the digital photography equipment that this image acquisition unit 5 is high accurancy and precision, and the structure of this image acquisition unit 5 and principle are not characteristic of the present invention, so do not add explanation at this.
This image process unit 6 is electrically connected with this image acquisition unit 5, but and comprises the computing module 62 of a said image data 8 of calculation process and a display module 63 that is electrically connected with this computing module 62.
See also Fig. 1, Fig. 2, Fig. 4 and shown in Figure 5, Fig. 4 is the flow diagram that shows a plurality of steps of pole stock eccentric distance method for measurement of the present invention.This pole stock eccentric distance method for measurement comprises following steps:
Carry out step 71: shaft 21 that will this pole stock 2 to be measured is seated in 43 on the said cylinder of this rolling unit 4, and makes said cylinder 43 rotate and drive this pole stock 2 to be measured to rotate around this bar axle center 211.This pole stock 2 to be measured is to place towards the mode of this camera lens 51 with this spiral shell head 22, and this spiral shell head 22 outstanding said cylinders 43, and is positioned at 43 on this camera lens 51 and this cylinder, and along with this shaft 21 rotates constantly.
Carry out step 72: start this image acquisition unit 5, make it successively capture several image datas 8.Each image data 8 has all comprised one corresponding to the spiral shell head image of this spiral shell head 22 81, an end face image 82 corresponding to this end face 23.
Carry out step 73: send these image acquisition unit 5 picked image data 8 to this image process unit 6.
Carry out step 74: the computing module 62 of this image process unit 6 is set a coordinate 91 on said image data 8.
Carry out step 75: this computing module 62 contrasts these coordinates 91, calculates the seat label of an image center point 83 of this end face image 82 in each image data 8.And in this preferred embodiment, because the shape of this end face 23 and position are corresponding to this work nest 24, so this image center point 83 is equivalent to the central point of this work nest 24 on calculating.
Carry out step 76: this computing module 62 utilizes the seat label of said image center point 83, calculates an approximate circle 92, and a center of circle 93 of this approximate circle 92 is equivalent to the position in this bar axle center 211.And the circle of the best in these approximate circle 92 image processing techniques capable of using (best circle) method obtains; Yet the method for being not limited thereto, the minimum mode of the deviate of the distance that the image center point in this center of circle 93 also capable of using and the said image data 8 is 83 is calculated.
Carry out step 77: the length of an approximate circle radius 94 of this approximate circle 92 is the eccentric distance of this pole stock 2 to be measured just, and it is presented on this display module 63.
What further specify is, because this shaft 21 of said cylinder 43 clampings, and rollably drive this pole stock 2 to be measured, and make it around 211 rotations of the bar axle center of this shaft 21, this moment, this spiral shell head 22 was also synchronously around these bar axle center 211 rotations.When work nest 24 offsets of this spiral shell head 22; Just the central point 231 of this end face 23 is not positioned under the situation on the same line with this bar axle center 211; The center of this end face 23 can be the center of circle 93 with this bar axle center 211, and moves along circular path, and the distance in these end face 23 central points 231 and this bar axle center 211; Just eccentric distance, the just radius in the path of the central point 231 of this end face 23.
Therefore the present invention is in the process of these pole stock 2 rotations to be measured; Note down the position at a plurality of end faces 23 centers with the mode of digitized video; And utilize the digitized video treatment technology; Calculate the radius of this approximate circle 92, and said approximate circle 92 just is similar to the mobile route of the central point 231 of this end face 23.
What deserves to be mentioned is, when execution is of the present invention, can adjust the ratio of said image data 8 earlier, it is equated with physical size, or obtain the ratio of image data 8 and physical size drop earlier, further be scaled physical length again.
In addition; Usually can indicate a setting mark (figure does not show) on the spiral shell head 22, with when this work nest 24 of moulding as the benchmark of location, therefore utilizing this eccentric distance to carry out timing; Wherein image data 8 capable of using; And be that benchmark calculates the component of this eccentric distance on two perpendicular directions with this setting mark, reach the direction of accurate grasp skew, and the purpose in order to proofread and correct.
And the present invention is except the eccentric distance of the work nest 24 that can be used to measure this pole stock 2 to be measured; Can also calculate the seat label of the central point (figure does not show) of this spiral shell head 22; In order to measure the eccentric distance of this spiral shell head 22, therefore can improve the precision of pole stock moulding more efficiently really.In addition, the present invention also can be applicable to as on the pole stocks such as nail or axostylus axostyle, and utilizes the geometric center of its end face 23 to calculate eccentric distance, and the cross section of this pole stock just of end face 23 in the case.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (5)
1. pole stock eccentric distance method for measurement; Be to utilize a pole stock eccentric distance measuring equipment to measure the eccentric distance of a pole stock to be measured; This pole stock eccentric distance measuring equipment comprises: a rolling unit, an image acquisition unit that comprises a camera lens; And an image process unit that comprises a display module, this pole stock to be measured comprises a shaft that comprises a bar axle center, and an end face that is positioned at an end of this shaft; This eccentric distance is the distance between the central point of bar axle center and this end face of this shaft, and this pole stock eccentric distance method for measurement is characterised in that: this pole stock eccentric distance method for measurement comprises following steps:
(A) shaft of this pole stock to be measured is seated on this rolling unit, and makes this pole stock to be measured around the rotation of the bar axle center of this shaft;
(B) utilize this image acquisition unit successively to capture several image datas, each image data all comprises an end face image corresponding to this end face;
(C) send said image data to this image process unit;
(D) this image process unit calculates an approximate circle, and the center of circle of this approximate circle is equivalent to the position in this bar axle center; And
(E) length with an approximate circle radius of this approximate circle is presented on the display module of this image process unit, and the length of this approximate circle radius is the eccentric distance of this pole stock to be measured.
2. pole stock eccentric distance method for measurement according to claim 1; It is characterized in that: in step (A); The end face of this pole stock to be measured is to be positioned between the camera lens and this rolling unit of this image acquisition unit, in step (B), this camera lens be with this shaft abreast towards this end face.
3. pole stock eccentric distance method for measurement according to claim 1; It is characterized in that: in step (D); This image process unit is in said image data, to set a coordinate, and to should coordinate calculating in each image data the label corresponding to an image center point of an end face image of this end face.
4. pole stock eccentric distance measuring equipment; Be used for measuring the eccentric distance of a pole stock to be measured; This pole stock to be measured comprises a shaft that comprises a bar axle center; And an end face that is positioned at an end of this shaft, this eccentric distance is the distance between the central point of bar axle center and this end face of this shaft, this pole stock eccentric distance measuring equipment is characterised in that: this pole stock eccentric distance measuring equipment comprises:
A rolling unit can supply this shaft installing and drive this shaft around this bar axle center rotation;
An image acquisition unit is installed in a side of this rolling unit at intervals with this rolling unit, and can successively captures several image datas; And
An image process unit is electrically connected with this image acquisition unit, and comprises that a said image data capable of using calculates the computing module of the eccentric distance of this pole stock to be measured, and a display module that is electrically connected and can shows this eccentric distance with this computing module.
5. pole stock eccentric distance measuring equipment according to claim 4; It is characterized in that: this rolling unit has two and is provided with at interval and rotatable cylinder; But this image acquisition unit comprises a camera lens towards the end face of this pole stock to be measured, one and is installed in around this camera lens and luminous light source, and the sensitive piece that can light be converted into electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105172133A CN102455170A (en) | 2010-10-15 | 2010-10-15 | Method and device for measuring eccentric distance of small pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105172133A CN102455170A (en) | 2010-10-15 | 2010-10-15 | Method and device for measuring eccentric distance of small pole |
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| CN102455170A true CN102455170A (en) | 2012-05-16 |
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| CN2010105172133A Pending CN102455170A (en) | 2010-10-15 | 2010-10-15 | Method and device for measuring eccentric distance of small pole |
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| CN (1) | CN102455170A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981613A (en) * | 2017-06-01 | 2018-12-11 | 广东工业大学 | A kind of coaxality measurement of large span hole system processing and adjusting method |
| CN109163679A (en) * | 2018-07-27 | 2019-01-08 | 东莞市凯融光学科技有限公司 | A kind of measurement method of image-type mode mechanical eccentric |
| CN110715621A (en) * | 2018-07-12 | 2020-01-21 | 大族激光科技产业集团股份有限公司 | Detection method, device and equipment |
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| US20050053272A1 (en) * | 2003-09-10 | 2005-03-10 | Kazunori Mizutori | Method and apparatus for measuring coaxial relation between two mechanical parts |
| CN101556145A (en) * | 2009-04-29 | 2009-10-14 | 徐州工程学院 | Device and method for monitoring slow-speed and over-load rotor eccentricity image |
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| JPH08128815A (en) * | 1994-10-31 | 1996-05-21 | Tokyo Koku Keiki Kk | Instrument for measuring hole diameter and concentricity of very small cylindrical component |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108981613A (en) * | 2017-06-01 | 2018-12-11 | 广东工业大学 | A kind of coaxality measurement of large span hole system processing and adjusting method |
| CN108981613B (en) * | 2017-06-01 | 2020-08-18 | 广东工业大学 | Coaxiality measuring and adjusting method for large-span hole system machining |
| CN110715621A (en) * | 2018-07-12 | 2020-01-21 | 大族激光科技产业集团股份有限公司 | Detection method, device and equipment |
| CN110715621B (en) * | 2018-07-12 | 2021-07-02 | 大族激光科技产业集团股份有限公司 | Detection method, device and equipment |
| CN109163679A (en) * | 2018-07-27 | 2019-01-08 | 东莞市凯融光学科技有限公司 | A kind of measurement method of image-type mode mechanical eccentric |
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Application publication date: 20120516 |