CN1538232A - Absolute matrix coding disk having 10-bit coarse gross code brack - Google Patents
Absolute matrix coding disk having 10-bit coarse gross code brack Download PDFInfo
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Abstract
An absolute matrix encode disk with 10-bit coarse code track for measuring angle displacement and angle speed is composed of a code disk with two coarse code tracks and a slit disk with two slit rings matched with said two coarse code tracks. They are coaxially installed to mainshaft in such manner that said code disk can rotate with the mainshaft and the slit disk is stationary relative to mainshaft.
Description
One, technical field: the invention belongs to a kind of absolute type matrix coding disk that relates in angular displacement in the photoelectricity test, the angular velocity measurement technical field with ten thick code channels.
Two, technical background: absolute type matrix coding disk is the core parts that the absolute matrix scrambler carries out angular displacement, angular velocity measurement, constitute by code-disc and slit plate coupling, delineation has some circle annular concentric code channels on the code-disc, slit plate is provided with and the corresponding slit of code channel, both organically mate, exportable angle information.The common code-disc that angle measurement accuracy is had relatively high expectations, all constitute by thick code channel and smart code channel, code-disc outer ring delineation precision height, the thick code channel that measuring accuracy is lower is located at the less inner lane of code-disc diameter, and the smart code channel that angle measurement accuracy is had relatively high expectations comes the outer ring of thick code channel.The coding of code channel has binary periodic coding, decimal coded, binary decimal code.
Along with industry and high-tech development and needs, more and more urgent to the requirement of absolute matrix scrambler miniaturization in recent years, the requirement of scrambler miniaturization must make the radial dimension of the slit plate of code-disc and its coupling dwindle.After the radial dimension of code-disc dwindles, the number of turns of delineation just reduces, the thing followed is that the output figure place of scrambler also correspondingly reduces, in order to overcome this shortcoming, under the situation that the code-disc radial dimension dwindles, do not reduce the output figure place of scrambler again, usually adopt thick code channel is carried out arranged, the high-order code channel of thick code channel outer ring is the smart code channel of full week design.The thick code channel of arranged obtains after the binary periodic sign indicating number of original non-matrix the electronic technology disposal route of the maturation of available routine, output angle displacement information after proofreading and correct through decoding.
The prior art the most approaching with the present invention, it is (the utility model patent of calendar year 2001 application of the absolute type matrix coding disk with eight thick code channels of Changchun Institute of Optics, Fine Mechanics and Physics, CAS's development and production, it is ZL00264312.x that name is called " absolute type matrix coding disk " patent No., and the applying date is 010926) as depicted in figs. 1 and 2.In Fig. 1, delineation has the thick code channel of two circles, and the first lap code channel is divided into two intervals and is opaque zone for 0 °～180 °, and 180 °～360 ° is transparent zone.The second circle circle code channel is divided into 0 °～90 °, 90 °～180 °, 180 °～270 °, 270 °～360 ° four intervals.In 0 °～90 ° interval, arrange opaque zone and transparent zone by the design of eight equal portions, each equal portions is 90 °/8=11 ° 15 ', near 0 ° and 90 ° of positions promptly 11 ° 15 of one equal portions ' be opaque zone are arranged respectively, adjacent with these two opaque zones is two transparent zones, each transparent zone respectively account for two equal portions promptly respectively be 22 ° 30 ', what these two transparent zones were adjacent is two opaque zones, occupy promptly 22 ° 30 of two equal portions ', hence one can see that in 0 °～90 ° intervals, 0 °～15 ° is opaque zone, 11 ° 15 '～33 ° 45 ' be transparent zone, 33 ° 45 '～56 ° 15 ' be opaque zone, 56 ° 15 '～78 ° 45 ' be transparent zone, 78 ° 45 '～90 ° is opaque zone.
In 90 °～180 ° intervals, arrange opaque zone and transparent zone by 16 equal portions designs, each equal portions is 90 °/16=5 ° 37 ' 30 ",
Being 5 ° 37 ' 30 near 90 ° and 180 ° of each You one equal portions of position " is opaque zone; Adjacent with these two opaque zones is two transparent zones; Two equal portions of each Zhan of each transparent zone namely respectively be 11 ° 15 '; Adjacent with these two transparent zones is two opaque zones; Two equal portions of each Zhan You of each opaque zone are 11 ° 15 '; Adjacent with these two opaque zones is two transparent zones; Two equal portions of each Zhan of each transparent zone namely respectively be 11 ° 15 '; Adjacent with these two transparent zones is two opaque zones; Two equal portions of Zhan You are 11 ° 15 '
Hence one can see that in 90 °～180 ° intervals, 90 °～95 ° 37 ' 30 " is opaque zone; 95 ° 37 ' 30 "～106 ° 52 ' 30 " is transparent zone; 106 ° 52 ' 30 "～118 ° 7 ' 30 " is opaque zone; 118 ° 7 ' 30 "～129 ° 22 ' 30 " is transparent zone; 129 ° 22 ' 30 "～140 ° 37 ' 30 " is opaque zone; 140 ° 37 ' 30 "～151 ° 52 ' 30 " is transparent zone, 151 ° 52 ' 30 "～163 ° 7 ' 30 " is opaque zone, 163 ° 7 ' 30 "～174 ° 22 ' 30 " is transparent zone, 174 ° 22 ' 30, and "～180 ° is opaque zone.
In 180 °～270 ° interval, by 30 halves design and installation opaque zone and transparent zones, each equal portions is 90 °/32=2 ° 48 ' 45 "; near 180 ° and 270 ° of positions one equal portions being arranged respectively " is opaque zone for promptly 2 ° 48 ' 45, according to 180 ° as can be known～182 ° 48 ' 45 of the arrangement regulation in above-mentioned interval " be opaque zone; 182 ° 48 ' 45 "～188 ° 26 ' 15 " is transparent zone; 188 ° 26 ' 15 "～194 ° 3 ' 45 " is opaque zone ... 267 ° 11 ' 15 "～270 ° is opaque zone.
In 270 °～360 ° interval, by 60 quarter design and installation opaque zone and transparent zones, according to above-mentioned interval is identical rule, 270 ° as can be known～271 ° 24 ' 22.5 " be opaque zone, 271 ° 24 ' 22.5 "～274 ° 13 ' 7.5 " is transparent zone ... 358 ° 35 ' 37.5, and "～360 ° is opaque zone.
Fig. 2 is the slit plate that is complementary with code-disc shown in Figure 1, at the inner lane of slit plate, is complementary with the first lap code channel of code-disc, and eight slit a are set
1, a
2A
8, the footpath of slit is aimed at first lap code channel, a to the midline
1Be positioned at 0 ° of position, a
2Be positioned at 45 ° of positions, a
3Be positioned at 90 ° of positions, a
4Be positioned at 135 ° of positions, a
5Be positioned at 202 ° of 30 ' positions, a
6Be positioned at 247 ° of 30 ' positions, a
7Be positioned at 292 ° of 30 ' positions, a
8Be positioned at 337 ° of 30 ' positions, a
8a
1=22 ° 30 '.Second circle at slit plate is provided with four slit c
1, c
2, c
3, c
4, their footpath is aimed at the second circle code channel of code-disc, c to the midline
1Be positioned at 0 ° of position, c
2Be positioned at 90 ° of positions, c
3Be positioned at 180 ° of positions, c
4Be positioned at 270 ° of positions.Code-disc is fixed on the main shaft of scrambler, and rotate with main shaft, slit plate maintains static with respect to main shaft, place with the code-disc opposing parallel, relatively rotate between code-disc and the slit plate, output code, writing down the position of the angular displacement of main shaft, when code-disc clockwise rotates, the first lap code channel of code-disc and the first lap slit of slit plate coupling, slit a
1The information that receives is low level state (obstructed district) at 0 °～180 °, and 180 °～360 ° is high level state (transparent zone), slit a
2The information that receives is low level state at 0 °～135 °, and 135 °～315 ° is high level state, and 315 °～360 ° is low level state, slit a
3The information that receives is low level state at 0 °～90 °, and 90 °～270 ° is high level state, and 270 °～360 ° is low level state; Slit a
4The information that receives is low level state at 0 °～45 °, and 45 °～225 ° is high level state, and 225 °～360 ° is low level state, slit a
5The information that receives is high level state at 0 °～157.5 °, and 157.5 °～337.5 ° is low level state, and 337.5 °～360 ° is high level state; Slit a
6The information that receives is high level state at 0 °～112.5 °, and 112.5 °～292.5 ° is low level state, and 2927.5 °～360 ° is high level state; Slit a
7The information that receives is high level state at 0 °～67.5 °, and 67.5 °～247.5 ° is low level state, and 247.5 °～360 ° is high level state; Slit a
8The information that receives is high level state at 0 °～22.5 °, and 22.5 °～202.5 ° is low level state, and 202.5 °～360 ° is high level state.
As shown in Figure 3, slit a
1The information that receives is first code A
1, slit a
3The information that receives is second code A
2, slit a
2And a
4The information that receives through the circuit XOR handle the 3rd code A
3, i.e. A
3=a
2 a
4, slit a
5, a
6The information that receives through the circuit XOR handle b
1Signal, i.e. b
1=a
5 a
6, slit a
7, a
8The information that receives through the circuit XOR handle b
2Signal, i.e. b
2=a
7 a
8, the 4th code A
4=b
1 b
2=a
5 a
6 a
7 a
8, the second circle slit c of second circle code channel of code-disc and slit plate
1, c
2, c
3, c
4Be complementary, when code-disc clockwise rotates, output code as shown in Figure 4: slit c
1The information that receives is the 5th code A at 0 °～90 °
5, 90 °～180 ° be hexacode A
6, 180 °～270 ° be the 7th code A
7, 270 °～360 ° be eight bit code A
8Slit c
2The information that receives, 0 °～90 ° is hexacode A
6, 90 °～180 ° be the 7th code A
7, 180 °～270 ° be eight bit code A
8, 270 °～360 ° be the 5th code A
5Slit c
3The information that receives, 0 °～90 ° is the 7th code A
7, 90 °～180 ° be eight bit code A
8, 180 °～270 ° be the 5th code A
5, 270 °～360 ° be hexacode A
6Slit c
4The information that receives, 0 °～90 ° is eight bit code A
8, 90 °～180 ° be the 5th code A
5, 180 °～270 ° be hexacode A
6, 270 °～360 ° be the 7th code A
7
As from the foregoing: A
5At 0 °～90 ° by c
1Output, 90 °～180 ° by c
4Output, 180 °～270 ° by c
3Output, 270 °～360 ° by c
2Output, A
6At 0 °～90 ° by c
2Output, 90 °～180 ° by c
1Output, 180 °～270 ° by c
4Output, 270 °～360 ° by c
3Output; A
7At 0 °～90 ° by c
3Output, 90 °～180 ° by c
2Output, 180 °～270 ° by c
1Output, 270 °～360 ° by c
4Output; A
8At 0 °～90 ° by c
4Output, 90 °～180 ° by c
3Output, 180 °～270 ° by c
2Output, 270 °～360 ° by c
1Output;
By code A
1And A
2It is as follows it can be processed into traditional binary periodic sign indicating number logical equation:
A
5＝C
1A
1A
2+C
4A
1A
2+C
3A
1A
2+C
2A
1A
2
A
6＝C
2A
1A
2+C
1A
1A
2+C
4A
1A
2+C
3A
1A
3
A
7＝C
3A
1A
2+C
2A
1A
2+C
1A
1A
2+C
4A
1A
2
A
8＝C
4A
1A
2+C
3A
1A
2+C
2A
1A
2+C
1A
1A
2
Above A
1～A
8It is exactly the conventional eight bit code of code-wheel output illustrated in figures 1 and 2.
The subject matter that this code-wheel exists is: the slit a on the slit plate shown in Figure 2
8, a
1Between the arc distance angle only be 22 ° 30 ', under the less situation of radius, both distances are too near, conventional receiving device volume is put to be entered, and makes a
1And a
8The read head at place is difficult to obtain angular displacement information accurately simultaneously, influences the accuracy of scrambler angle displacement, and then the influence use, and the thick code channel of this scrambler can only be exported eight bit code, influences the raising of follow-up code channel measuring accuracy.
Three, summary of the invention: in order to overcome the shortcoming that prior art exists, the objective of the invention is to, under the situation that does not increase code-disc delineation diameter, change first lap and the delineation position of the thick code channel of second circle in different circumferential sectors, simultaneously under the situation that does not increase the slit plate diameter, change the slit distributing position that is complementary with code-disc first lap and the thick code channel of second circle, make between the adjacent slit of slit plate first lap two conventional electronic receiver spare can normally successfully be installed, can make simultaneously the thick code channel of two circles of code-wheel again, export ten codes, a kind of absolute type matrix coding disk of ad hoc meter with ten thick code channels.
The technical problem to be solved in the present invention is: a kind of absolute type matrix coding disk with ten thick code channels is provided, and guarantees between the adjacent slit of slit plate first lap two conventional photelectric receiver to be installed successfully normally.The technical scheme of dealing with problems as shown in Figure 5 and Figure 6, comprise code-disc and slit plate, both are coaxial parallel, certain space assembling is left in the centre, code-disc as shown in Figure 5, on code-disc the delineation have two the circle thick code channel, the thick code channel of first lap is divided into two sections, promptly 0 °～180 ° is light tight section, and 180 °～360 ° is the printing opacity section; The thick code channel of second circle is divided into 0 °～45 °, 45 °～90 °, 90 °～135 °, 135 °～180 °, 180 °～225 °, 225 °～270 °, 270 °～360 ° seven zones, and the printing opacity section that each is regional and the setting of light tight section are different.In 0 °～45 ° zones, be divided into four sections, each section be 11 ° 15 ', be light tight district near 0 ° section with near 45 ° section, two middle sections be 22 ° 30 ' be photic zone; In 45 °～90 ° zones, be divided into eight sections, each section is 5 ° 37 ' 30 "; near 45 ° sections with near 90 ° section is light tight district; adjacent with these two light tight districts respectively have two sections; all be 11 ° 15 ' be photic zone, two middle sections be 11 ° 15 ' be light tight district; In 90 °～135 ° zones, be divided into 16 sections, each section is 2 ° 48 ' 45 "; near 90 ° sections with near 135 ° section is light tight district; adjacent with these two light tight districts respectively have two sections; all be 5 ° 37 ' 30 " be photic zone, adjacent with these two photic zones respectively have two sections, all be 5 ° 37 ' 30 " for light tight district; adjacent with these two light tight sections respectively have two sections; all being 5 ° 37 ' 30, " for two sections of the photic zone centre adjacent with these two printing opacity sections, being 5 ° 37 ' 30 " is light tight district; In 135 °～180 ° zones, be divided into 32 sections, each section is 1 ° 24 ' 22.5 "; near 135 ° sections with near 180 ° section is light tight district; adjacent with these two light tight districts respectively have two sections; all be 2 ° 48 ' 45 " be photic zone, adjacent with these two photic zones respectively have two sections, all be 2 ° 48 ' 45 " for light tight district; each two sections adjacent; all be 2 ° 48 ' 45 " with these two light tight districts for photic zone adjacent with this two photic zones two sections are respectively arranged, all be 2 ° 48 ' 45 " be light tight district; Adjacent with these two light tight districts respectively have two sections, it all is 2 ° 48 ' 45 " for photic zone; adjacent with these two photic zones respectively have two sections; all be 2 ° 48 ' 45 " be light tight district, each two sections adjacent with these two light tight districts, all be that 2 ° 48 ' 45 " two sections that are the photic zone centre adjacent with these two photic zones are 2 ° 48 ' 45 " is light tight district.
In 180 °～225 ° zones, be divided into 64 sections, each section is 42 ° 11 ' 25 "; the arrangement regulation of delineation code channel is identical with above-mentioned zone code channel arrangement regulation; the section near 180 ° and 225 ° is light tight district; two sections adjacent with this light tight district all are 1 ° 24 ' 22.5 " is photic zone, two sections adjacent with this photic zone all are 1 ° 24 ' 22.5 " is light tight district; the light tight district aligned identical of the photic zone of two sections and two sections, two sections up to the centre are
1 ° 24 ' 22.5 " is photic zone.
In like manner, in 225 °～270 ° zones, be divided into 128 sections, each section is 21 ' 5.63 "; the section near 225 ° and 270 ° is light tight district; respectively have two sections adjacent with this light tight district all are 42 ' 11.25 " is photic zone, the light tight district of two sections and the photic zone of two sections alternately, two sections 42 ' 11.25 until the centre " are light tight district.
270 °～360 ° zones are divided into four sections, each section be 22 ° 30 ', be that to be 45 ° be photic zone for two sections of the centre adjacent with this light tight district, light tight district near the section of 270 ° and 360 °.
Slit distributed layout on the slit plate as shown in Figure 6, the layout of slit is divided into two circles, the thick code channel equal diameters of the first lap on first lap slit and the code-disc and being complementary, and second on the second circle slit and the code-disc encloses thick code channel equal diameters and is complementary, the first lap slit has four, and they are a
1, a
2a
3And a
4, a
1Be positioned at 0 ° of position, a
2Be positioned at 45 ° of positions, a
3Be positioned at 90 ° of positions, a
4Be positioned at 135 ° of positions; The second circle slit has eight c
1, c
2, c
3, c
4, c
5, c
6, c
7, c
8, c
1Be positioned at 0 ° of position, c
2Be positioned at 45 ° of positions, c
3Be positioned at 90 ° of positions, c
4Be positioned at 135 ° of positions, c
5Be positioned at 180 ° of positions, c
6Be positioned at 225 ° of positions, c
7Be positioned at 270 ° of positions, c
8Be positioned at 315 ° of positions.
Principle of work explanation: code-disc and slit plate be coaxial to be installed on the main shaft and pedestal of scrambler, code-disc is fixed on the scrambler main shaft, and rotate with main shaft, slit plate maintains static with respect to the scrambler main shaft, place with the code-disc opposing parallel, maintain a certain distance between the two, relatively rotate between code-disc and the slit plate.Output code, the angular displacement position of writing down main shaft.The first lap code channel of code-disc and the first lap slit of slit plate are complementary, the second circle slit of second circle code channel of code-disc and slit plate is complementary, when code-disc clockwise rotates, and the first lap slit and the second circle slit, when running into the photic zone of code channel, signal output can be arranged all.
The first lap code channel and the second circle slit coupling, photic zone is a high level, light tight district is a low level, slit a
1The information that receives is low level state at 0 °～180 °, is high level state at 180 °～360 °; Slit a
2The information that receives is low level state at 0 °～135 °, is high level state at 135 °～315 °; 315 °～360 ° is low level state; Slit a
3The information that receives is low level state at 0 °～90 °, and 90 °～270 ° is high level state; At 270 °～360 ° is low level state; Slit a
4The information that receives is low level state at 0 °～45 °, and 45 °～225 ° is high level state, and 225 °～360 ° is low level state.
As can be seen from Figure 7, slit a
1The information that receives is first code A
1Be A
1=a
1Slit a
3The information that receives is second code A
2Be A
2=a
3Slit a
2And a
4The information that receives through the circuit XOR handle the 3rd code A
3Be A
3=a
2 a
4
The second circle code channel and the second circle slit c
1, c
2, c
3, c
4, c
5, c
6, c
7, c
8The coupling, photic zone is a high level, light tight district is a high level, received information as shown in Figure 8, slit c
1The information that receives, 0 °～45 ° is the 5th code A
5, 45 °～90 ° be hexacode A
6, 90 °～135 ° be the 7th code A
7, 135 °～180 ° be eight bit code A
8, 180 °～225 ° be the 9th code A
9, 225 °～270 ° be the tenth code A
10, 270 °～360 ° be the 4th code A
4Slit c
2The information that receives, 0 °～45 ° is hexacode A
6, 45 °～90 ° be the 7th code A
6, 90 °～135 ° be eight bit code A
8, 135 °～180 ° be the 9th code A
9, 180 °～225 ° be the tenth code A
10, 225 °～315 ° be the 4th code A
4, 315 °～360 ° be the 5th code A
5Slit c
3The information that receives, 0 °～45 ° is the 7th code A
7, 45 °～90 ° be eight bit code A
8, 90 °～135 ° be the 9th code A
9, 135 °～180 ° be the tenth code A
10, 180 °～270 ° be the 4th code A
4, 270 °～315 ° be the 5th code A
5, 315 °～360 ° be hexacode A
6Slit c
4The information that receives, 0 °～45 ° is eight bit code A
8, 45 °～90.Be the 9th code A
9, 90.～135。Be the tenth code A
10, 135.～225 ° is the 4th code A
4, 225 °～270 ° be the 5th code A
5, 270 °～315 ° be hexacode A
6, 315 °～360 ° be the 7th code A
7Slit c
5The information that receives, 0 °～45 ° is the 9th code A
9, 45 °～90 ° be the tenth code A
10, 90 °～180 ° be the 4th code A
4, 180 °～225 ° be the 5th code A
5, 225 °～270 ° be hexacode A
6, 270～315 ° be the 7th code A
7, 315 °～360 ° be eight bit code A
8Slit c
6The information that receives, 0 °～45 ° is the tenth code A
10, 45 °～135 ° be the 4th code A
4, 135 °～180 ° be the 5th code A
5, 180 °～225 ° be hexacode A
6, 225 °～270 ° be the 7th code A
7, 270 °～315 ° be eight bit code A
8, 315 °～360 ° be the 9th code A
9Slit c
7The information that receives, 0 °～90 ° is the 4th code A
4, 90 °～135 ° be the 5th code A
5, 135 °～180 ° be hexacode A
6, 180 °～225 ° be the 7th code A
7, 225 °～270 ° be eight bit code A
8, 270 °～315 ° be the 9th code A
9, 315 °～360 ° be the tenth code A
10, slit c
8The information that receives, 0 °～45 ° is the 4th code A
4, 45 °～90 ° be the 5th code A
5, 90 °～135 ° be hexacode A
6, 135 °～180 ° be the 7th code A
7, 180 °～225 ° be eight bit code A
8, 225 °～315 ° be the 9th code A
9, 270 °～315 ° be the 5th code A
10315 °～360 ° is the 4th code A
4
From the above, the 4th code A
4, at 0 °～90 ° by slit C
7Output, at 90 °～180 ° by slit C
5Output, at 180 °～270 ° by slit C
3Output, at 270 °～360 ° by slit C
1Output; The 5th code A
5, at 0 °～45 ° by slit C
1Output, at 45 °～90 ° by slit C
8Output, at 90 °～135 ° by slit C
7Output, at 135 °～180 ° by slit C
6Output; At 180 °～225 ° by slit C
5Output, at 225 °～270 ° by slit C
4Output, at 270 °～315 ° by slit C
3Output; At 315 °～360 ° by slit C
2Output; Hexacode A
6, at 0 °～45 ° by slit C
2Output, at 45 °～90 ° by slit C
1Output, at 90 °～135 ° by slit C
8Output, at 135 °～180 ° by slit C
7Output; At 180 °～225 ° by slit C
6Output, at 225 °～270 ° by slit C
5Output, at 270 °～315 ° by slit C
4Output; At 315 °～360 ° by slit C
3Output; The 7th code A
7, at 0 °～45 ° by slit C
3Output, at 45 °～90 ° by slit C
2Output, at 90 °～135 ° by slit C
1Output, at 135 °～180 ° by slit C
8Output; At 180 °～225 ° by slit C
7Output, at 225 °～270 ° by slit C
6Output, at 270 °～315 ° by slit C
5Output; At 315 °～360 ° by slit C
4Output; Eight bit code A
8, at 0 °～45 ° by slit C
4Output, at 45 °～90 ° by slit C
3Output, at 90 °～135 ° by slit C
2Output, at 135 °～180 ° by slit C
1Output; At 180 °～225 ° by slit C
8Output, at 225 °～270 ° by slit C
7Output, at 270 °～315 ° by slit C
6Output; At 315 °～360 ° by slit C
5Output; The 9th code A
9, at 0 °～45 ° by slit C
5Output, at 45 °～90 ° by slit C
4Output, at 90 °～135 ° by slit C
3Output, at 135 °～180 ° by slit C
2Output; At 180 °～225 ° by slit C
1Output, at 225 °～270 ° by slit C
8Output, at 270 °～315 ° by slit C
7Output; At 315 °～360 ° by slit C
6Output; The tenth code A
10, at 0 °～45 ° by slit C
6Output, at 45 °～90 ° by slit C
5Output, at 90 °～135 ° by slit C
4Output, at 135 °～180 ° by slit C
3Output; At 180 °～225 ° by slit C
2Output, at 225 °～270 ° by slit C
1Output, at 270 °～315 ° by slit C
8Output; At 315 °～360 ° by slit C
7Output;
By code A
1, A
2, A
3, the logical equation that is processed into traditional binary periodic sign indicating number is as follows:
A
4＝C
7A
1A
2+C
5A
1A
2+C
3A
1A
2+C
2A
1A
2
A
5＝C
1A
1A
2A
3+C
8A
1A
2A
3+C
7A
1A
2A
3+C
6A
1A
2A
3+C
5A
1A
2A
3+
C
4A
1A
2A
3+C
3A
1A
2A
3+C
2A
1A
2A
A
6＝C
2A
1A
2A
3+C
1A
1A
2A
3+C
8A
1A
2A
3+C
7A
1A
2A
3+C
6A
1A
2A
3+
C
5A
1A
2A
3+C
4A
1A
2A
3+C
3A
1A
2A
3
A
7＝C
3A
1A
2A
3+C
2A
1A
2A
3+C
1A
1A
2A
3+C
8A
1A
2A
3+C
7A
1A
2A
3+
C
6A
1A
2A
3+C
5A
1A
2A
3+C
4A
1A
2A
3
A
8＝C
4A
1A
2A
3+C
3A
1A
2A
3+C
2A
1A
2A
3+C
1A
1A
2A
3+C
8A
1A
2A
3+
C
7A
1A
2A
3+C
6A
1A
2A
3+C
5A
1A
2A
3
A
9＝C
5A
1A
2A
3+C
4A
1A
2A
3+C
3A
1A
2A
3+C
2A
1A
2A
3+C
1A
1A
2A
3+
C
8A
1A
2A
3+C
7A
1A
2A
3+C
6A
1A
2A
3
A
10＝C
6A
1A
2A
3+C
5A
1A
2A
3+C
4A
1A
2A
3+C
3A
1A
2A
3+C
2A
1A
2A
3+
C
1A
1A
2A
3+C
8A
1A
2A
3+C
7A
1A
2A
3
Above A
1, A
2A
10Be ten codes of routine of Fig. 5 and code-wheel shown in Figure 6 output.
Good effect of the present invention: do not increase under the situation of delineation diameter at code-disc and slit plate, have only two thick code channels of circle and two circle slits to be complementary, just can export ten higher codes, for the high coding dish has been established certain basis, the second circle slit is rationally distributed simultaneously, uniform eight slits on circumference, between the adjacent in twos slit, arc distance is bigger, can assemble photoelectric receiving device smoothly, improve condition of acceptance, guaranteed the numerical value accuracy of scrambler sense angular displacement.
Four, description of drawings: Fig. 1 is the thick code channel structural representation of code-disc in the prior art code-wheel, Fig. 2 is the slit layout structure synoptic diagram of the slit plate that is complementary with code-disc code channel shown in Figure 1 in the prior art, and Fig. 3 is prior art code-wheel first lap code channel and the first lap slit output code A that is complementary
1, A
2, A
3, A
4The demonstration synoptic diagram.Fig. 4 is that the prior art code-wheel second circle code channel and the second circle slit are complementary output code A
5, A
6, A
7, A
8The demonstration form, Fig. 5 is the thick code channel structural representation of code-disc in the code-wheel of the present invention, Fig. 6 is the structural representation of the slit plate slit layout that is complementary with code-disc code channel shown in Figure 5 among the present invention, and Fig. 7 is code-wheel first lap code channel of the present invention and the first lap slit output code A that is complementary
1, A
2, A
3The demonstration synoptic diagram, Fig. 8 is that the code-wheel of the present invention second circle code channel and second encloses the slit output code A that is complementary
4, A
5, A
6, A
7, A
8, A
9, A
10Show form.
Five, embodiment: code-wheel of the present invention is implemented by the layout of slit on Fig. 5 and code-disc code channel structure shown in Figure 6 and the slit, and the material of code-disc and slit plate all adopts K
9Optical glass.
Code-disc and slit plate be coaxial to be installed on the main shaft and pedestal of scrambler, code-disc is fixed on the scrambler main shaft, and rotate with main shaft, slit plate maintains static with respect to the scrambler main shaft, place with the code-disc opposing parallel, maintain a certain distance between the two, relatively rotate between code-disc and the slit plate.Output code, the angular displacement position of writing down main shaft.
Claims (1)
1, a kind of absolute type matrix coding disk with ten thick code channels, comprise code-disc and slit plate, it is characterized in that delineation has the thick code channel of two circles on code-disc, the thick code channel of first lap is divided into two sections, promptly 0 °～180 ° is light tight section, and 180 °～360 ° is the printing opacity section; The thick code channel of second circle is divided into 0 °～45 °, 45 °～90 °, 90 °～135 °, 135 °～180 °, 180 °～225 °, 225 °～270 °, 270 °～360 ° seven zones, and the printing opacity section that each is regional and the setting of light tight section are different.In 0 °～45 ° zones, be divided into four sections, each section be 11 ° 15 ', be light tight district near 0 ° section with near 45 ° section, two middle sections be 22 ° 30 ' be photic zone; In 45 °～90 ° zones, be divided into eight sections, each section is 5 ° 37 ' 30 "; near 45 ° sections with near 90 ° section is light tight district; adjacent with these two light tight districts respectively have two sections; all be 11 ° 15 ' be photic zone, two middle sections be 11 ° 15 ' be light tight district; In 90 °～135 ° zones, be divided into 16 sections, each section is 2 ° 48 ' 45 "; near 90 ° sections with near 135 ° section is light tight district; adjacent with these two light tight districts respectively have two sections; all be 5 ° 37 ' 30 " be photic zone, adjacent with these two photic zones respectively have two sections, all be 5 ° 37 ' 30 " for light tight district; adjacent with these two light tight sections respectively have two sections; all being 5 ° 37 ' 30, " being photic zone centre two sections adjacent with these two printing opacity sections, is 5 ° 37 ' 30 " is light tight district; In 135 °～180 ° zones, be divided into 32 sections, each section is 1 ° 24 ' 22.5 "; near 135 ° sections with near 180 ° section is light tight district; adjacent with these two light tight districts respectively have two sections; all be 2 ° 48 ' 45 " be photic zone, adjacent with these two photic zones respectively have two sections, all be 2 ° 48 ' 45 " for light tight district; each two sections adjacent; all be 2 ° 48 ' 45 " with these two light tight districts for photic zone adjacent with this two photic zones two sections are respectively arranged, all be 2 ° 48 ' 45 " be light tight district; Adjacent with these two light tight districts respectively have two sections, it all is 2 ° 48 ' 45 " for photic zone; adjacent with these two photic zones respectively have two sections; all be 2 ° 48 ' 45 " be light tight district, each two sections adjacent with these two light tight districts, all be that 2 ° 48 ' 45 " two sections that are the photic zone centre adjacent with these two photic zones are 2 ° 48 ' 45 " is light tight district; In 180 °～225 ° zones, be divided into 64 sections, each section is 42 ° 11 ' 25 "; the arrangement regulation of delineation code channel is identical with above-mentioned zone code channel arrangement regulation; the section near 180 ° and 225 ° is light tight district; two sections adjacent with this light tight district all are 1 ° 24 ' 22.5 " is photic zone, two sections adjacent with this photic zone all are 1 ° 24 ' 22.5, and " be light tight district; the light tight district aligned identical of the photic zone of two sections and two sections, two sections up to the centre are 1 ° 24 ' 22.5 " is photic zone; In like manner, in 225 °～270 ° zones, be divided into 128 sections, each section is 21 ' 5.63 "; the section near 225 ° and 270 ° is light tight district; respectively have two sections adjacent with this light tight district all are 42 ' 11.25 " is photic zone, the light tight district of two sections and the photic zone of two sections alternately, two sections 42 ' 11.25 until the centre " be light tight district; 270 °～360 ° zones are divided into four sections, each section be 22 ° 30 ', be that to be 45 ° be photic zone for two sections of the centre adjacent with this light tight district, light tight district near the section of 270 ° and 360 °; Slit layout on the slit plate is divided into two circles, the thick code channel equal diameters of the first lap on first lap slit and the code-disc and being complementary, and second on the second circle slit and the code-disc encloses thick code channel equal diameters and is complementary, and the first lap slit has four, and they are a
1, a
2, a
3And a
4, a
1Be positioned at 0 ° of position, a
2Be positioned at 45 ° of positions, a
3Be positioned at 90 ° of positions, a
4Be positioned at 135 ° of positions; The second circle slit has eight c
1, c
2, c
3, c
4, c
5, c
6, c
7, c
8, c
1Be positioned at 0 ° of position, c
2Be positioned at 45 ° of positions, c
3Be positioned at 90 ° of positions, c
4Be positioned at 135 ° of positions, c
5Be positioned at 180 ° of positions, c
6Be positioned at 225 ° of positions, c
7Be positioned at 270 ° of positions, c
8Be positioned at 315 ° of positions; Code-disc and slit plate be coaxial to be installed on the main shaft and pedestal of scrambler, and code-disc is fixed on the scrambler main shaft, and rotates with main shaft, slit plate maintains static with respect to the scrambler main shaft, install with the code-disc opposing parallel, keep certain clearance between the two, relatively rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111495 CN1236354C (en) | 2003-04-16 | 2003-04-16 | Absolute matrix coding disk having 10-bit coarse gross code brack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111495 CN1236354C (en) | 2003-04-16 | 2003-04-16 | Absolute matrix coding disk having 10-bit coarse gross code brack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1538232A true CN1538232A (en) | 2004-10-20 |
| CN1236354C CN1236354C (en) | 2006-01-11 |
Family
ID=34319781
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03111495 Expired - Fee Related CN1236354C (en) | 2003-04-16 | 2003-04-16 | Absolute matrix coding disk having 10-bit coarse gross code brack |
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| Country | Link |
|---|---|
| CN (1) | CN1236354C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509779A (en) * | 2015-12-01 | 2016-04-20 | 中国航空工业集团公司洛阳电光设备研究所 | Absolute-type photoelectric code disc and photoelectric encoder |
| CN111076760A (en) * | 2019-12-25 | 2020-04-28 | 洛阳伟信电子科技有限公司 | Method for correcting coarse code of absolute code disc |
-
2003
- 2003-04-16 CN CN 03111495 patent/CN1236354C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509779A (en) * | 2015-12-01 | 2016-04-20 | 中国航空工业集团公司洛阳电光设备研究所 | Absolute-type photoelectric code disc and photoelectric encoder |
| CN111076760A (en) * | 2019-12-25 | 2020-04-28 | 洛阳伟信电子科技有限公司 | Method for correcting coarse code of absolute code disc |
| CN111076760B (en) * | 2019-12-25 | 2021-08-10 | 洛阳伟信电子科技有限公司 | Method for correcting coarse code of absolute code disc |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1236354C (en) | 2006-01-11 |
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