CN103712638A - Color absolute raster sensing device - Google Patents
Color absolute raster sensing device Download PDFInfo
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- CN103712638A CN103712638A CN201310071495.2A CN201310071495A CN103712638A CN 103712638 A CN103712638 A CN 103712638A CN 201310071495 A CN201310071495 A CN 201310071495A CN 103712638 A CN103712638 A CN 103712638A
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Abstract
Provided is a color absolute raster sensing device. The color absolute raster sensing device is composed of a white light source, a color main raster ruler, a U-shaped measuring raster ruler, a group of stacked prisms and a group of photoelectric receiver tubes. Lines which have the same width greater than a red visible spectrum wavelength are scribed and coated in a layered mode in a sequence of black, red, orange, yellow, green, blue, indigo, purple and white transparency on a transparent main raster ruler substrate; transparent raster lines which are right opposite to each other, vertical to each other and have the same width of the raster line at the bottom layer or the top layer of the main raster ruler are respectively scribed at the two vertical edges of the U-shaped measuring raster ruler; a beam of white light is forward incident to the U-shaped measuring raster ruler from one side, and after passing through single-color light bands with different refractive indexes at the other side of the U-shaped measuring raster ruler, refracts single-color light bands at fixed positions via the prisms; seven photoelectric tubes are arranged at the positions where the seven single-color light bands come out of; and the seven photoelectric tubes, after respectively receiving single-color light signals, output voltage or current signals so that color absolute positioning of a raster ruler is realized.
Description
Affiliated technical field
The present invention relates to a kind of colored absolute grating sensing device, especially carry out precision and detect travel position location, angle of rotation and realize multidimensional coding and coloud coding.
Background technology
The online detection position of grating state is the conventional detection method of location, linear course position, angle position location and location, hyperspace position.Stroke, displacement detecting, for preventing in testing process, photosignal loses, error code, and detected material is moved or rotates, just reliably detection and location exactly.
Summary of the invention
In order to overcome the only detection method of black, white Quick Response Code of existing grating, the present invention adopts colorama grid line, can be divided into the gratings of totally 9 kinds of grid stroke combinations of red, orange, yellow, green, blue, indigo, purple and transparent and black by optical spectrum.
The technical solution adopted for the present invention to solve the technical problems is: make colored main grating scale, the bottom or the superiors at transparent main grating scale substrate, delineation width be greater than vertical with the U-shaped measurement grating scale moving direction row of same widths of red visible spectrum wavelength vertical by black, red, orange, yellow, green, blue, indigo, purple and transparent totally 9 kinds of grating lines, again at the last layer of the transparent main grating scale substrate bottom or lower one deck of the superiors, depict a row vertical grid stroke vertical with U-shaped measurement grating scale moving direction that each vertical width of a row is identical with the bottom or 9 vertical grid stroke overall widths of the superiors, produce by that analogy the many rows grating vertically extending up or down.Make U-shaped measurement grating scale, on two vertical edges of U-shaped measurement grating scale, respectively delineate one vertically, over against and the transparent optical grid line identical with the bottom of main grating scale or the superiors' grid stroke width, on two vertical edges of U-shaped measurement grating scale except each transparent optical grid line, two sides of transparent optical grid line are all blacks, forbid that all light pass through.Main grating scale is placed in the U-shaped groove of measuring grating scale, two transparent optical grid lines of main grating scale grating lines and U-shaped measurement grating scale are over against parallel and remain in a plane with the bottom or the superiors' grid stroke all the time.A branch of white light forward is injected the transparent optical grid line of U-shaped measurement grating scale one hand hay cutter, forward is injected by the white light forward of transparent optical grid line one side of U-shaped measurement grating scale and is penetrated on the monochromatic grid line of main grating scale, white light is by the filtration of the monochromatic grid line of main grating scale, only penetrate on the grid line of the opposite side of U-shaped measurement grating scale with the homochromy monochromatic light forward of monochromatic grid line, the monochromatic light that sees through this side transparent optical grid line of U-shaped measurement grating scale is gradually dark monochromatic light belts of strip of bright two sides in a centre, the monochromatic light belt of this strip is after prism, because of the refractive index difference of prism to shades of colour light, the monochromatic light belt of a fixed position will be reflected in prism another side.Because pressing black and red on main grating scale, orange, yellow, green, blue, indigo, purple and transparent order coating delineation line, each monochromatic grid line light will form a series of light belts by the order that in advance certain rule is arranged after by prism, each single color light belt is again with the movement of U-shaped measurement grating scale, will successively show that in prism another side to have 9 kinds red, orange, yellow, green, blue, indigo, it is purple that each is monochromatic and show red simultaneously, orange, yellow, green, blue, indigo, purple seven kinds of monochromatic light belts or the black state not showing completely, prism side over against red, orange, yellow, green, blue, indigo, seven photoelectric tubes are settled in the position that purple seven kinds of monochromatic light belts penetrate, seven photoelectric tubes receive respectively output voltage or current signal after monochromatic light signal, each monochromatic light grid line by main grating scale is arranged, after another side refraction by prism, form light belt by seven photoelectric tubes at diverse location receiving optical signals, a kind of monochromatic light grid line on key light grid, only can allow a wherein photoelectric tube receive light signal, when main grating scale grid line is transparent, white light after reflecting by prism, form colour light band by seven photoelectric tubes at diverse location receiving optical signals simultaneously, when light cannot pass through the black grid line of main grating scale, seven photoelectric tubes after prism refraction can not receive light signal at diverse location simultaneously, a branch of like this white light can form 9 kinds of codings on the main grating scale of colour, on, lower two bundle white light combination establishment 81 bit codes, the upper and lower N row of colored main grating scale grating, just by 9 Nth power, encode, 7 windows multiply each other for 79, can work out 4782969 different codes, analogize the method and can work out successively different codes by the grid line position of the bottom of main grating scale or most upperstratum position, its coding of any diverse location of grating scale scarcely can be identical, substitute existing grating scale and split phase window, realize colored absolute fix grating scale.
The invention has the beneficial effects as follows: the no longer ad hoc anchor window of grating scale, power interruption recovering is without seeking zero-bit, encodes simple and easy and figure place is many, directly shows current location.Directly at main grating scale, carry out physical subdivision, also can segment by software, electronic circuit is partly simple, and antijamming capability strengthens, and detection system reliability improves, and accuracy of detection improves with detection length.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is a kind of colored absolute grating sensing device structure principle chart.
Fig. 2 is a kind of colored absolute grating ruler schematic diagram.
Fig. 3 is a kind of chromatic grating main scale schematic diagram.
Fig. 4 is a kind of U-shaped measurement grating scale schematic diagram.
Fig. 5 is a kind of chromatic grating sensing device prism structures schematic diagram.
1. light sources in figure, 2.U type is measured grating scale, 3. white light, 4. photoelectric tube receives monochromatic light, 5. main grating scale, 6. detection and localization light, 7. photoelectric receiving tube, 8. prism reflects monochromatic light, 9. superposing type prism, 10. main grating scale bottom location light coding, 11.Zhu grating scale the superiors location light coding, 12. prism interlayer black are every tabula rasa, and 13.U type is measured grating scale transparent optical grid line.
Embodiment
In Fig. 1, light source (1) transmitting white (3) is through U-shaped measurement grating scale transparent optical grid line (13) single slit diffraction of U-shaped measurement grating scale (2) one sides, white light is just being penetrated on the monochromatic grid line of main grating scale (5), monochromatic grid line absorbs in white light the light with monochromatic grid line color different spectral, only allow the light transmission main grating scale (5) homochromy with monochromatic grid line, filtered monochromatic detection and localization light (6) is over against U-shaped measurement grating scale transparent optical grid line (13) single slit diffraction of U-shaped measurement grating scale (2) opposite side, monochromatic detection and localization light (6) is injected superposing type prism (9) one sides by certain incident angle, monochromatic detection and localization light (6) reflects into prism refraction monochromatic light (8) in superposing type prism (9), prism refraction monochromatic light (8) sees through superposing type prism (9) another side and forms photoelectric tube reception monochromatic light (4), photoelectric tube receives monochromatic light (4) and injects photoelectric receiving tube (7), photoelectric receiving tube (7) carries out opto-electronic conversion and becomes curtage signal, by electronic circuit, be processed into and the man-to-man unique coding in U-shaped measurement grating scale (2) position, U-shaped measurement grating scale (2) moves to diverse location, unique coding is corresponding with it.A kind of monochromatic light is unique only can receive photoelectric tube reception monochromatic light (4) at the unique photoelectric receiving tube (7) with its correspondence position, setting photoelectric receiving tube (7) conducting is 1, not conducting of photoelectric receiving tube (7) is 0, a branch of white light can be worked out the black 0000000 and red 1000000 of helping not conducting in 7 photoelectric receiving tubes (7), orange 0100000, yellow 0010000, green 0001000, blue 0000100, indigo look 0000010, purple 0000001 and white light 1111111 be totally 9 group codings, regulation black code 1 and code red 2, code orange 3, code yellow 4, green code 5, blue code 6, indigo look code 7, purple code 8 and white light code 9, have 9 codes.
In embodiment illustrated in fig. 2, main grating scale (5) is placed in U-shaped measurement grating scale (2), the U-shaped measurement grating scale transparent optical grid line (13) of U-shaped measurement grating scale (2) is over against the main grating scale bottom location light coding of orlop (10) of main grating scale (5) and each monochromatic grating of upper 3 layers, and the unique code of the main grating scale of demonstration (5) of this position of the mobile locking of U-shaped measurement grating scale (2) is comprised of one group of 4 digit code from the top down.
In Fig. 3, main grating scale (5) is 4 arrangement colored main grating scale, the superiors' location light codings (11) and bottom location light coding (10) from the top down.
In Fig. 4, U-shaped measurement grating scale (2) and on U-shaped measurement grating scale transparent optical grid line (13).
In Fig. 5, superposing type prism (9) is by a plurality of prism three limit alignment stacks, on superposing type prism (9), go to the bottom and by prism interlayer black, every tabula rasa (12), separated between prism adjacent with each, prevent that in the prism of adjacent stack, light disturbs.
Claims (4)
1. a colored absolute grating sensing device, the bottom or the superiors at transparent main grating scale substrate, delineation width be greater than vertical with the U-shaped measurement grating scale moving direction row of same widths of red visible spectrum wavelength vertical by black, red, orange, yellow, green, blue, indigo, purple and transparent totally 9 kinds of grating lines, again at the last layer of the transparent main grating scale substrate bottom or lower one deck of the superiors, depict a row vertical grid stroke vertical with U-shaped measurement grating scale moving direction that each vertical width of a row is identical with the bottom or 9 vertical grid stroke overall widths of the superiors, produce by that analogy the many rows grating vertically extending up or down.On two vertical edges of U-shaped measurement grating scale, respectively delineate one vertically, over against and the transparent optical grid line identical with the bottom of main grating scale or the superiors' grid stroke width, on two vertical edges of U-shaped measurement grating scale except each transparent optical grid line, two sides of transparent optical grid line are all blacks, forbid that all light pass through.Main grating scale is placed in the U-shaped groove of measuring grating scale, two transparent optical grid lines of main grating scale grating lines and U-shaped measurement grating scale are over against parallel and remain in a plane with the bottom or the superiors' grid stroke all the time.A branch of white light forward is injected the transparent optical grid line of U-shaped measurement grating scale one hand hay cutter, forward is injected by the white light forward of transparent optical grid line one side of U-shaped measurement grating scale and is penetrated on the monochromatic grid line of main grating scale, white light is by the filtration of the monochromatic grid line of main grating scale, only penetrate on the grid line of the opposite side of U-shaped measurement grating scale with the homochromy monochromatic light forward of monochromatic grid line, the monochromatic light that sees through this side transparent optical grid line of U-shaped measurement grating scale is gradually dark monochromatic light belts of strip of bright two sides in a centre, the monochromatic light belt of this strip is after prism, because of the refractive index difference of prism to shades of colour light, the monochromatic light belt of a fixed position will be reflected in prism another side.Because pressing black and red on main grating scale, orange, yellow, green, blue, indigo, purple and transparent order coating delineation line, each monochromatic grid line light will form a series of light belts by the order that in advance certain rule is arranged after by prism, each single color light belt is again with the movement of U-shaped measurement grating scale, will successively show that in prism another side to have 9 kinds red, orange, yellow, green, blue, indigo, it is purple that each is monochromatic and show red simultaneously, orange, yellow, green, blue, indigo, purple seven kinds of monochromatic light belts or the black state not showing completely, prism side over against red, orange, yellow, green, blue, indigo, seven photoelectric tubes are settled in the position that purple seven kinds of monochromatic light belts penetrate, seven photoelectric tubes receive respectively output voltage or current signal after monochromatic light signal, each monochromatic light grid line by main grating scale is arranged, after another side refraction by prism, form light belt by seven photoelectric tubes at diverse location receiving optical signals, a kind of monochromatic light grid line on key light grid, only can allow a wherein photoelectric tube receive light signal, when main grating scale grid line is transparent, white light after reflecting by prism, form colour light band by seven photoelectric tubes at diverse location receiving optical signals simultaneously, when light cannot pass through the black grid line of main grating scale, seven photoelectric tubes after prism refraction can not receive light signal at diverse location simultaneously, a branch of like this white light can form 9 kinds of codings on the main grating scale of colour, main grating scale vertical direction N row grating, just by 9 Nth power, encode, its coding of any diverse location that is grating scale scarcely can be identical, realize colored absolute fix grating scale.
2. a kind of colored absolute grating sensing device according to claim 1, is characterized in that: colored main grating scale, U-shaped measurement grating scale and prism and photoelectric receiving tube strictly combine arrangement by mode claimed in claim 1.
3. a kind of colored absolute grating sensing device according to claim 1, it is characterized in that: colored main grating scale vertical direction N row grating can be changed and put arbitrarily up and down, but the photosignal that final photoelectric tube receives must be encoded from the top down or from bottom to top by sortord claimed in claim 1.
4. a kind of colored absolute grating sensing device according to claim 1, is characterized in that: prevent from respectively arranging up and down monochromatic interference, on each prism of superposing type, go to the bottom and adjacent with black, every tabula rasa, separate completely.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106767468A (en) * | 2016-12-29 | 2017-05-31 | 贵州虹轴轴承有限公司 | A kind of bearing ring outer wall accuracy detecting device |
| CN106839978A (en) * | 2016-12-29 | 2017-06-13 | 贵州虹轴轴承有限公司 | A kind of bearing ring outer wall precision measurement and detection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767468A (en) * | 2016-12-29 | 2017-05-31 | 贵州虹轴轴承有限公司 | A kind of bearing ring outer wall accuracy detecting device |
| CN106839978A (en) * | 2016-12-29 | 2017-06-13 | 贵州虹轴轴承有限公司 | A kind of bearing ring outer wall precision measurement and detection device |
| CN106767468B (en) * | 2016-12-29 | 2019-03-01 | 贵州虹轴轴承有限公司 | A kind of bearing ring outer wall accuracy detecting device |
| CN106839978B (en) * | 2016-12-29 | 2019-04-19 | 贵州虹轴轴承有限公司 | A kind of bearing ring outer wall precision measurement and detection device |
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Effective date of registration: 20171010 Address after: 246003 Anhui province Anqing City Yixiu District Zhongshan Avenue North Jiabao Industrial Park D7 (B, 7-6) Patentee after: Anhui seven sea Intelligent Control Technology Co. Ltd. Address before: 246003, room 1, unit 1, pioneer Lane power supply district, Renmin Road, Anhui, Anqing, 602 Patentee before: Ye Qiushi |
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