CN204373671U - A kind of Novel encoder - Google Patents
A kind of Novel encoder Download PDFInfo
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- CN204373671U CN204373671U CN201520010523.4U CN201520010523U CN204373671U CN 204373671 U CN204373671 U CN 204373671U CN 201520010523 U CN201520010523 U CN 201520010523U CN 204373671 U CN204373671 U CN 204373671U
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- photo
- sensitive cell
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- shadow shield
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Abstract
The utility model discloses a kind of Novel encoder, belong to scrambler field, this scrambler comprises turning axle, described photo-sensitive cell is fixed on turning axle one end, described shadow shield is positioned at the front of this photo-sensitive cell and is fixed on described outer casing inner wall, described shadow shield has two light holes, and described light source is positioned at the below of this shadow shield and is fixed on described circuit system part center place, described circuit system part is fixed on described shell bottom, forms one.Scrambler of the present utility model is compared with traditional scrambler, reduce manufacture difficulty, shorten the production cycle, significantly reduce production cost, the utility model, by utilizing the diffraction of light, photo-sensitive cell forms a dim spot, the angle position of measured axis can be obtained by the position measuring this dim spot, need not code-disc, break through and far exceeded the measuring limit of traditional code-disc measuring technique, measuring accuracy and resolution all improve a lot.
Description
Technical field
The utility model relates to scrambler field, particularly relates to a kind of Novel encoder.
Background technology
In the production of modern manufacturing industry, more and more higher requirement is proposed to the degree of accuracy of machine operation.Scrambler is the Primary Component affecting machine operation degree of accuracy, its in mechanical rotating shaft motion process resetting shaft position information to control system to reach the object accurately controlling rotating shaft rotary motion position and speed.
Scrambler is divided into absolute type and relative type motor two kinds, and absolute type encoder can reflect the positional information of mechanical rotating shaft relative to predetermined initial point, the reflection of relative type motor scrambler be then current axis position relative to the positional information of front axle position.
A lot of absolute type encoder at present, the coded system of employing is gray encoding.Namely on code-disc, engrave multiple tracks code channel, every bar code channel have successively 2,4,8,16...2
aroad groove.When scrambler works, code-disc is penetrated in the illumination sent by light source, by reading the secretly bright of per pass groove, obtaining a group code value come a unique corresponding axle position with this.Although this kind of scrambler principle is simple, reliable operation, strong interference immunity, its code-disc manufacturing process is complicated, and the maximum code number of channels that can carve and maximum groove number also have certain limit, can not meet the requirement of ultrahigh resolution processing.
Summary of the invention
In order to solve the technical matters of prior art encoder resolution by code-disc restriction, the utility model provides a kind of Novel encoder, and this scrambler can break away from the restriction of code-disc, and control resolution obtains and significantly promotes.
In order to achieve the above object, the utility model provides following technical scheme:
Novel encoder, comprise turning axle, light source, shadow shield, photo-sensitive cell, circuit system part and shell, described photo-sensitive cell is fixed on turning axle one end, described shadow shield is positioned at the front of this photo-sensitive cell and is fixed on described outer casing inner wall, this shadow shield has two light holes, described light source is positioned at the below of this shadow shield and is fixed in the place of described circuit system part center, and described circuit system part is fixed on described shell bottom, form one, install and measure to facilitate.During the work of this scrambler, turning axle dynamic optical element rotates, dimmer is fixed on outer casing inner wall, light source impinges upon on photo-sensitive cell through light hole, leave Liang Geyuanguang district, form a dim spot in the middle of Liang Geyuanguang district, this dim spot is then the angle position of current turning axle, the i.e. angle position of measured axis, the position of this dim spot can be obtained by the measurement of photo-sensitive cell and circuit system part; Due to the diffraction of light, light source passing hole is not rectilinear propagation when being irradiated to photo-sensitive cell, this becomes large by making light source irradiation to the Liang Geyuanguang district on photo-sensitive cell, the dim spot in the middle of Liang Geyuanguang district is caused to become less, make the position of dim spot can be more accurate, namely the angle position of axle be more accurate.
One as the technical program is improved, and described shell is the right cylinder of middle part hollow out.
Another kind as the technical program improves, and described shadow shield is cylindrical shape, and diameter is less than described outer casing inner wall diameter.
As another improvement of the technical program, described photo-sensitive cell is integrated by light activated element, this light activated element also can be able to be other light activated elements for cmos light activated element, and the light sent by light source is converted to analog voltage signal outputs in described circuit system part.
As the further improvement of the technical program, described circuit system part comprises signal conversion module and position enquiring module, and the analog voltage signal that described signal conversion module is used for light activated element exports is converted to digital signal 1 or 0, forms code value; Produce code value when light activated element light is irradiated and when the non-light of other light activated elements is irradiated, described position enquiring module stores records the axle parallactic angle degree corresponding with its code value.
In a word, the utility model and prior art are than having following technical advantage:
The utility model forms a Novel encoder with turning axle, light source, shadow shield, photo-sensitive cell, circuit system part and shell, compared with traditional scrambler, reduce manufacture difficulty, shorten the production cycle, significantly reduce production cost, the utility model is by utilizing the diffraction of light, photo-sensitive cell is formed a dim spot, the angle position of measured axis can be obtained by the position measuring this dim spot, need not code-disc, break through and far exceeded the measuring limit of traditional code-disc measuring technique, measuring accuracy and resolution all improve a lot.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Novel encoder;
Fig. 2 is circuit system part schematic diagram;
Fig. 3 is photo-sensitive cell operationally schematic diagram.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent.
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, be clearly and completely described the technical scheme in the utility model, obviously, described embodiment is only utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As described in Figure 1, for the structural representation of the Novel encoder of the utility model preferred embodiment, comprise turning axle 1, light source 2, shadow shield 3, photo-sensitive cell 4, circuit system part 5 and shell 6, described photo-sensitive cell 4 is integrated and be fixed on turning axle 1 one end by light activated element, described shadow shield 3 have two light holes 31 and be positioned at the front of this photo-sensitive cell 4, to ensure that the light in light hole can be irradiated on photo-sensitive cell 4, when light activated element is subject to the irradiation of light, light signal can be converted to analog voltage signal, this shadow shield 3 is fixed on described shell 6 inwall simultaneously, form one, described light source 2 is positioned at the below of this shadow shield 3 and is fixed in the place of described circuit system part 5 center, light source 2 provides power supply by circuit system part 5, circuit system part 5 is fixed on described shell 6 bottom, form one, as shown in Figure 2, circuit system part comprises signal conversion module 41 and position enquiring module 42, and described signal conversion module 41 is converted to digital signal 1 or 0 for the analog voltage signal exported by light-sensitive array sensor, forms code value, when the stored record of described position enquiring module 42 has light activated element light to irradiate and other light activated element light irradiate time produce code value and code value corresponding axle parallactic angle degree, during the work of this scrambler, turning axle 1 dynamic optical element 4 rotates, as shown in Figure 3, light therethrough light hole 31 impinges upon on photo-sensitive cell 4, leave Liang Geyuanguang district 310, form a dim spot 311 in the middle of Liang Geyuanguang district, then this dim spot 311 is the angle position of current turning axle, i.e. the angle position of measured axis, while photo-sensitive cell 4 rotates, dim spot 311 also and then rotates, so this dim spot 311 forms a circular trace on this photo-sensitive cell, in the present embodiment, the circular trace that dim spot 311 is formed on photo-sensitive cell 4 is preferably made up of 10 cmos light activated elements, the angle that then 1 cmos light activated element is corresponding is 36 degree, and along with increasing of the light activated element number in the circular trace that photo-sensitive cell 4 is formed, the resolution of measurement is also higher.(for ease of explanation, this circle only have 10 light activated elements, actual have multiple), the signal conversion module 41 of analog voltage signal in circuit system part that then light activated element exports is converted to digital signal 1 or 0, form concrete code value, as shown in table 1, this code value is transferred in position enquiring module 42, produce when irradiating with the light activated element light of position enquiring module 42 stored record and when other light activated element light are irradiated code value carry out searching comparison, thus draw measured axis position angle now, in such as table 1 1100000110, its corresponding angle is 0 degree, wherein " 1 " represents that light activated element is subject to illumination and penetrates, in the present embodiment, light activated element number in one Yuan Guang district 310 is two, " 0 " represents that light activated element is not subject to illumination and penetrates, be so then the corresponding light activated element of dim spot 311 two to the individual digit " 0 " between numeral " 11 ", also the position angle of just now measured axis.In like manner, measured axis is in the different anglecs of rotation, and the light situation of photo-sensitive cell is different, thus can show that measured axis is in the not anglec of rotation in the same time, just repeats no longer one by one at this.
Due to the diffraction of light, light source passing hole is not rectilinear propagation when being irradiated to photo-sensitive cell, this becomes large by making light source irradiation to the Liang Geyuanguang district 310 on photo-sensitive cell, the dim spot 311 in the middle of Liang Geyuanguang district 310 is caused to become less, make the position of dim spot 311 can be more accurate, namely the angle position of measured axis be more accurate.
Table 1:
| Code value | Corresponding angle (unit: degree) |
| 1100000110 | 0 |
| 1000001101 | 36 |
| 0000011011 | 72 |
| 0000110110 | 108 |
| 0001101100 | 144 |
| 0011011000 | 180 |
| 0110110000 | 216 |
| 1101100000 | 252 |
| 1011000001 | 288 |
| 0110000011 | 324 |
Claims (3)
1. a Novel encoder, comprise turning axle, light source, shadow shield, photo-sensitive cell, circuit system part and shell, it is characterized in that, described photo-sensitive cell is fixed on turning axle one end, described shadow shield is positioned at the front of this photo-sensitive cell and is fixed on described outer casing inner wall, described shadow shield has two light holes, and described light source is positioned at the below of this shadow shield and is fixed on described circuit system part center place, described circuit system part is fixed on described shell bottom, forms one.
2. a kind of Novel encoder as claimed in claim 1, is characterized in that, described shell is the right cylinder of middle part hollow out.
3. a kind of Novel encoder as claimed in claim 1, is characterized in that, described shadow shield is cylindrical shape, and diameter is less than described outer casing inner wall diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010523.4U CN204373671U (en) | 2015-01-08 | 2015-01-08 | A kind of Novel encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010523.4U CN204373671U (en) | 2015-01-08 | 2015-01-08 | A kind of Novel encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204373671U true CN204373671U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520010523.4U Expired - Fee Related CN204373671U (en) | 2015-01-08 | 2015-01-08 | A kind of Novel encoder |
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| Country | Link |
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| CN (1) | CN204373671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596556A (en) * | 2015-01-08 | 2015-05-06 | 佛山轻子精密测控技术有限公司 | Novel encoder and measuring method thereof |
-
2015
- 2015-01-08 CN CN201520010523.4U patent/CN204373671U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596556A (en) * | 2015-01-08 | 2015-05-06 | 佛山轻子精密测控技术有限公司 | Novel encoder and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20170108 |