CN106403910A - Novel reticle for photoelectric auto-collimation system - Google Patents
Novel reticle for photoelectric auto-collimation system Download PDFInfo
- Publication number
- CN106403910A CN106403910A CN201510463350.6A CN201510463350A CN106403910A CN 106403910 A CN106403910 A CN 106403910A CN 201510463350 A CN201510463350 A CN 201510463350A CN 106403910 A CN106403910 A CN 106403910A
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- CN
- China
- Prior art keywords
- graticle
- photoelectric auto
- scales
- collimation system
- reticle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention specifically relates to a novel reticle for a photoelectric auto-collimation system, belonging to the technical field of high-precision photoelectric auto-collimation testing equipment, wherein the novel reticle is capable of improving the resolution and stability of the measurement of the photoelectric auto-collimation system, reducing influence of environment on the measurement and enhancing environmental adaptability of the photoelectric auto-collimation system. The reticle is of an integrally circular structure; four transverse scales are arranged at the central position of the reticle, wherein two of the scales are located above the transverse central axis of a disc while the other two of the scales are located below the transverse central axis of the disc; the reticle has a diameter of 11 mm; the width of the four scales is 0.05 mm, distance among the four scales is 0.05 mm, and an error is no more than 0.001 mm; and the two scales above the transverse central axis and the two scales below the transverse central axis are symmetric along the transverse central axis. The reticle is applicable to an 8-[mu]m-pixel CCD sensor for realization of coverage of six pixels.
Description
Technical field
The invention belongs to high precision photoelectric autocollimating measurement equipment technical field is and in particular to a kind of novel photoelectric auto-collimation system graticle.
Background technology
The graticle of photoelectric auto-collimation system has a lot, and the graticle that photoelectric auto-collimation product on the market adopts at present is of all kinds, and mainly cross-graduation plate and a word graticle not yet have disclosed patent at present for the graticle described in this patent.
According to retrieval, the graticle of current photoelectric auto-collimation system mainly has following several：
Cross-graduation plate, the board-like graticle being most widely used of this graduation, it is also that earliest photoelectric auto-collimation system graticle occurs, stable vertical coordinate can be set up.Measurement and collimation are all very convenient.
One word graticle, this graticle is mainly used in one-dimensional measurement, can only carry out collimation and the measurement of one-dimensional angle, but the processing of this graticle is relatively easy, for the place not needing bidimensional measurement, it is of relatively low cost using a word graticle, it is possible to achieve the function of collimation and measurement.
Y word graticle, this graticle is a kind of graticle producing in recent years, primarily serves the purpose of the angular surveying realizing bidimensional based on one-dimensional sensor, have certain innovative, but processed complex, measures the edge for visual field being used simultaneously, it is unfavorable for that high-resolution is imaged.
Content of the invention
The purpose of the present invention is, not enough for prior art, provide a kind of Measurement Resolution of lifting photoelectric auto-collimation system, measurement stability and reduce the impact to measurement for the environment, the novel photoelectric auto-collimation system graticle of the environmental suitability of lifting photoelectric auto-collimation system.
The technical scheme is that：
A kind of novel photoelectric auto-collimation system graticle, graticle overall structure is circle, and heart position arranges four horizontal scales wherein, and two of which scale is located above the horizontal axis of disk, and two other scale is located at below the horizontal axis of disk.
Described graduation board diameter 11mm, the width of four graduation marks is 0.05mm, and the distance between four graduation marks are 0.05mm, and error is≤0.001mm.
Two graduation marks above transversal lines and two graduation marks below transversal lines, symmetrical with respect to transversal lines.
The ccd sensor that this graticle is applied to 8um pixel realizes the coverage of 6 pixels.
The invention has the beneficial effects as follows：
Graticle according to four score design does not need any control unit and the construction unit of change system, and also without being changed, we find in actual tests software unit, and the graticle of four grooves has obvious advantage in the following areas than single groove：
1. measurement stability lifting, it is achieved thereby that high measurement is repeated；
2. Measurement Resolution lifting, more than one times through computation and measurement increase resolution；
3. environmental suitability lifting, under equivalent environment, the photoelectric auto-collimation system of four groove graticles has more preferable stability than the photoelectric auto-collimation system of single groove.
Brief description
Fig. 1 is novel photoelectric auto-collimation system graticle structure chart；
Specific embodiment
With embodiment, one kind proposed by the present invention is further introduced below in conjunction with the accompanying drawings：
A kind of novel photoelectric auto-collimation system graticle, graticle overall structure is circle, and heart position arranges four horizontal scales wherein, and two of which scale is located above the horizontal axis of disk, and two other scale is located at below the horizontal axis of disk.
Described graduation board diameter 11mm, the width of four graduation marks is 0.05mm, and the distance between four graduation marks are 0.05mm, and error is≤0.001mm.
Two graduation marks above transversal lines and two graduation marks below transversal lines, symmetrical with respect to transversal lines.
The ccd sensor that this graticle is applied to 8um pixel realizes the coverage of 6 pixels.
In order to lift the adaptability of photoelectric auto-collimation system, need the impact to measurement by degree optical signalling, realize automatic optical signalling average, therefore, in the design of new graticle, form design graticle using four wordline, four graticle pictures thus can be formed, image procossing is equivalent to and has carried out four average computation, it is capable of the stability of lift system, pass through to be not take up the calculating time of CPU on the premise of realizing data stabilization similar to average computational methods, therefore, it is possible to reach the effect improving resolution and stability simultaneously again.Article four, the use of groove, can reduce the impact to measurement for the happenstance, can be with the happenstance during shield EMC measurement, the change of such as optical parametric, the change of outside air temperature and brightness, change of tested reflecting surface etc..The environmental suitability of lift system.
Embodiment 1
The concrete graticle design of this invention is as shown in Figure 1, graticle overall structure is circle, the graduation board diameter 11mm of the design design, the Pixel Dimensions of the CCD being used according to auto-collimation system, four line widths of the design are 0.05mm, and the distance between four grooves are 0.05mm.As shown in the figure.Graticle is processed using photoetching process and chrome-plated process, and mismachining tolerance is 0.001mm.
, in the installation in photoelectric auto-collimation system as the mounting means of other graticles, test mode is the same for this graticle, when using it is only necessary to design the live width of graduation graticle according to the overall dimensions of former graticle and the Pixel Dimensions of CCD.Being embodied as in this project, due to using the ccd sensor of 8um pixel, in order to realize the coverage of 6 pixels, devises the groove live width of 0.05mm.
When specifically being debugged, time shafts are corresponding to be four pictures, the size of voltage axis each picture corresponding, and software system completes the collection to image and process, output image center of gravity, and then calculates its measurement angle.
Claims (4)
1. a kind of novel photoelectric auto-collimation system graticle it is characterised in that：Graticle is overall
Structure is circle, and heart position arranges four horizontal scales wherein, and two of which scale is located at circle
Above the horizontal axis of disk, two other scale is located at below the horizontal axis of disk.
2. a kind of novel photoelectric auto-collimation system graticle as claimed in claim 1, its feature
It is：Described graduation board diameter 11mm, the width of four graduation marks is 0.05mm, four
The distance between graduation mark is 0.05mm, and error is≤0.001mm.
3. a kind of novel photoelectric auto-collimation system graticle as claimed in claim 1, its feature
It is：Two graduation marks above transversal lines and two graduation marks below transversal lines, with respect to
Transversal lines are symmetrical.
4. a kind of novel photoelectric auto-collimation system graticle as claimed in claim 1, its feature
It is：The ccd sensor that this graticle is applied to 8um pixel realizes the covering of 6 pixels
Scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463350.6A CN106403910A (en) | 2015-07-31 | 2015-07-31 | Novel reticle for photoelectric auto-collimation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463350.6A CN106403910A (en) | 2015-07-31 | 2015-07-31 | Novel reticle for photoelectric auto-collimation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106403910A true CN106403910A (en) | 2017-02-15 |
Family
ID=58007864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510463350.6A Pending CN106403910A (en) | 2015-07-31 | 2015-07-31 | Novel reticle for photoelectric auto-collimation system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970391A (en) * | 1974-07-29 | 1976-07-20 | Sanders Associates, Inc. | Direction determining method and apparatus |
| CN2395291Y (en) * | 1999-08-30 | 2000-09-06 | 中国科学院长春光学精密机械研究所 | Two dimensional dynamic digital display auto-collimation instrument |
| CN2748869Y (en) * | 2004-11-10 | 2005-12-28 | 北京林业大学 | Forest measuration type electronic altometer |
| CN102854634A (en) * | 2012-08-29 | 2013-01-02 | 中国科学院长春光学精密机械与物理研究所 | Reticle for high-magnification continuous focusing image pickup system |
| CN103278086A (en) * | 2013-04-27 | 2013-09-04 | 浙江平湖联成光电科技有限公司 | Reticle |
-
2015
- 2015-07-31 CN CN201510463350.6A patent/CN106403910A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3970391A (en) * | 1974-07-29 | 1976-07-20 | Sanders Associates, Inc. | Direction determining method and apparatus |
| CN2395291Y (en) * | 1999-08-30 | 2000-09-06 | 中国科学院长春光学精密机械研究所 | Two dimensional dynamic digital display auto-collimation instrument |
| CN2748869Y (en) * | 2004-11-10 | 2005-12-28 | 北京林业大学 | Forest measuration type electronic altometer |
| CN102854634A (en) * | 2012-08-29 | 2013-01-02 | 中国科学院长春光学精密机械与物理研究所 | Reticle for high-magnification continuous focusing image pickup system |
| CN103278086A (en) * | 2013-04-27 | 2013-09-04 | 浙江平湖联成光电科技有限公司 | Reticle |
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Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |