CN201517928U - Incremental photo-electricity encoder for simplifying structure of code channels - Google Patents
Incremental photo-electricity encoder for simplifying structure of code channels Download PDFInfo
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- CN201517928U CN201517928U CN2009201417469U CN200920141746U CN201517928U CN 201517928 U CN201517928 U CN 201517928U CN 2009201417469 U CN2009201417469 U CN 2009201417469U CN 200920141746 U CN200920141746 U CN 200920141746U CN 201517928 U CN201517928 U CN 201517928U
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Abstract
A coded disc for an incremental photo-electricity encoder for simplifying the structure of code channels comprises a disc body, wherein two code channels, namely a first code channel AB and a second code channel Z, are arranged on the disc body, wherein the second code channel Z only has one grid hole for determining the zero position of the coded disc, and the grid holes on the first code channel AB are distributed as follows: the disc body is divided into N equant small fan shapes, every six small fan shapes are taken as a group, the grid holes are formed in the position of the first code channel AB of a fourth small fan shape and a sixth small fan shape during a group of small fan shapes, or the grid holes are formed in the position of the first code channel AB of a first small fan shape and a third small fan shape, and the formation condition of the grid holes on other groups of small fan shapes is same as the group of small fan shape. The coded disc for an incremental photo-electricity encoder for simplifying the structure of code channels has simple structure, high definition, good frequency response characteristic, and is favorable for miniaturization of products.
Description
Technical field
The utility model relates to the angular position measurement field of sensing technologies, especially a kind of code-disc of simplifying the incremental optical-electricity encoder of code channel structure.
Background technology
Optical electric axial angle encoder is called for short photoelectric encoder, is a kind of light harvesting, mechanical, electrical in the digital angle measurement device of one, has a wide range of applications in fields such as Industry Control and electromechanical equipments.Photoelectric encoder partly is made up of light source, code-disc, slit plate, photoelectricity testing part, electronic processing circuit etc., and the coded system classification by forming code-disc has two kinds of increment type and absolute types.The code-disc of photoelectric encoder is a thin rounded flakes made from metal or other material, is furnished with some circle code channels above, is carved with many grid hole on every code channel according to certain rules.The code-disc of existing incremental optical-electricity encoder, its code-disc have three code channels: the outer ring is code channel A, and centre circle is code channel B, and inner ring is code channel Z, and code channel Z has only a grid hole.This incremental optical-electricity encoder is to differentiate the direction that code-disc rotates with the method for phase demodulation, notes down the position, angle that code-disc rotates with the method for step-by-step counting, and code channel Z is used for determining the zero-bit of code-disc.Because the developing direction of photoelectric encoder is miniaturization, intellectuality, integrated, the development trend of aspect of performance is high resolving power, high precision, high frequency sound.And existing this incremental optical-electricity encoder, the arrangement mode of its code channel has restricted the development of photoelectric encoder, is difficult to improve its resolution and precision.
Summary of the invention
The purpose of this utility model just provide a kind of simple in structure, resolution is high, helps the code-disc of the incremental optical-electricity encoder of simplifying the code channel structure of product miniaturization.
Code-disc of simplifying the incremental optical-electricity encoder of code channel structure of the present utility model, comprise disk body, disk body is provided with two code channels, the i.e. first code channel AB and the second code channel Z, the second code channel Z has only a grid hole, be used for determining the zero-bit of code-disc, grid pore size distribution rule on the first code channel AB is as follows: disk body is divided into the little fan-shaped of N five equilibrium, per six little fan-shaped be one group, in one group, the 4th and the 6th the little first code channel AB place on fan-shaped has the grid hole, or the 1st and the 3rd the little first code channel AB place on fan-shaped has the grid hole, other group is opened the situation in grid hole on the disk body, and is identical with this group.The slit plate corresponding with disk body, slit has three: the A slit, the B slit, the Z1 slit, the A slit, the B slit along the circumferential direction distributes, at interval with coexist one group the location matches in two grid holes of disk body, be placed on the position of the circumferencial direction corresponding with the first code channel AB of code-disc, the Z1 slit arrangement is on the axial location corresponding with the second code channel Z of code-disc.
Code-disc of simplifying the incremental optical-electricity encoder of code channel structure of the present utility model, code-disc rotates during work, slit plate is motionless, when code-disc is just changeing, the 4th the little fan-shaped position that forwards the A slit place of slit plate to of disk body, the photoelectric apparatus of A slit back can be received the photoelectric pulse signal of high level at this moment, and the B slit does not have the light of light source to pass through, the photoelectric apparatus that is B slit back does not have photoelectric pulse signal, if the photoelectric pulse signal that we will receive high level is represented with numeral 1, confiscate photoelectric pulse signal and represent that with numeral 0 binary number is exactly 10B so, 10B is defined as state one; Code-disc continues just to change, the 6th the little fan-shaped position that forwards the A slit place of slit plate to of code-disc, the photoelectric apparatus of A slit and B slit back all can be received the photoelectric pulse signal of high level at this moment, and corresponding binary number is 11B, and 11B is defined as state two; Code-disc continues just to change again, the 6th the little fan-shaped position that forwards the B slit place of slit plate to of code-disc, this moment, the A slit did not have the light of light source to pass through, the photoelectric apparatus that is A slit back does not have photoelectric pulse signal, and the photoelectric apparatus of B slit back can be received the photoelectric pulse signal of high level, corresponding binary number is 01B, and 01B is defined as state three.Code-disc just changes always, and the photosignal that the photoelectric apparatus of the photoelectric apparatus of A slit back and B slit back is received will be the repetition that state one arrives state three again to state two, and circulation is gone down always.During the code-disc counter-rotating, copy top analysis, be easy to find out, the photosignal that the photoelectric apparatus of the photoelectric apparatus of A slit back and B slit back is received will be the repetition that state three arrives state one again to state two, and circulation is gone down always.Clearly, the electronic information treatment circuit can be differentiated the direction that code-disc rotates according to the order of state variation fully.The number of times that bonding state changes is finished the counting that adds to rotational pulse, or is subtracted counting, thereby finishes the measurement of relative angular displacement.
The code-disc of incremental optical-electricity encoder of simplifying the code channel structure of the present utility model is simple in structure, resolution is high, frequency response characteristic good, helps the product miniaturization.
Description of drawings
Fig. 1 is a code-disc structural representation of the present utility model;
Fig. 2 is a slit plate structural representation of the present utility model.
Embodiment
A kind of code-disc of simplifying the incremental optical-electricity encoder of code channel structure, comprise disk body, disk body is provided with two code channels, the i.e. first code channel AB and the second code channel Z, the second code channel Z has only a grid hole, be used for determining the zero-bit of code-disc, grid pore size distribution rule on the first code channel AB is as follows: disk body is divided into the little fan-shaped of N five equilibrium, per six little fan-shaped be one group, in one group, the 4th and the 6th the little first code channel AB place on fan-shaped has the grid hole, or the 1st and the 3rd the little first code channel AB place on fan-shaped has the grid hole, other group is opened the situation in grid hole on the disk body, and is identical with this group.
Claims (1)
1. code-disc of simplifying the incremental optical-electricity encoder of code channel structure, comprise disk body, it is characterized in that: disk body is provided with two code channels, i.e. first code channel (AB) and second code channel (Z), second code channel (Z) has only a grid hole, grid pore size distribution rule on first code channel (AB) is as follows: disk body is divided into the little fan-shaped of N five equilibrium, per six little fan-shaped be one group, in one group, the the 4th and the 6th little first code channel (AB) on fan-shaped locates to have the grid hole, or the 1st and the 3rd little first code channel (AB) on fan-shaped locate to have the grid hole, and other group is opened the situation in grid hole on the disk body, and is identical with this group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201417469U CN201517928U (en) | 2009-02-23 | 2009-02-23 | Incremental photo-electricity encoder for simplifying structure of code channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201417469U CN201517928U (en) | 2009-02-23 | 2009-02-23 | Incremental photo-electricity encoder for simplifying structure of code channels |
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| Publication Number | Publication Date |
|---|---|
| CN201517928U true CN201517928U (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201417469U Expired - Fee Related CN201517928U (en) | 2009-02-23 | 2009-02-23 | Incremental photo-electricity encoder for simplifying structure of code channels |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384756A (en) * | 2011-11-21 | 2012-03-21 | 无锡市科瑞特精机有限公司 | Incremental encoder |
| CN106052724A (en) * | 2016-05-19 | 2016-10-26 | 深圳市越疆科技有限公司 | Robot, and rotation measuring device and method |
| CN111307187A (en) * | 2020-03-20 | 2020-06-19 | 大连探索者科技有限公司 | Rapid zero-finding microminiature incremental angle sensor and measuring method thereof |
| CN114846301A (en) * | 2020-12-01 | 2022-08-02 | 深圳市速腾聚创科技有限公司 | Grating disc, Z-phase signal identification method, photoelectric encoder and laser radar |
-
2009
- 2009-02-23 CN CN2009201417469U patent/CN201517928U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384756A (en) * | 2011-11-21 | 2012-03-21 | 无锡市科瑞特精机有限公司 | Incremental encoder |
| CN106052724A (en) * | 2016-05-19 | 2016-10-26 | 深圳市越疆科技有限公司 | Robot, and rotation measuring device and method |
| CN106052724B (en) * | 2016-05-19 | 2019-01-25 | 深圳市越疆科技有限公司 | A kind of robot, rotary measurement device and method |
| CN111307187A (en) * | 2020-03-20 | 2020-06-19 | 大连探索者科技有限公司 | Rapid zero-finding microminiature incremental angle sensor and measuring method thereof |
| CN114846301A (en) * | 2020-12-01 | 2022-08-02 | 深圳市速腾聚创科技有限公司 | Grating disc, Z-phase signal identification method, photoelectric encoder and laser radar |
| CN114846301B (en) * | 2020-12-01 | 2024-02-27 | 深圳市速腾聚创科技有限公司 | Grating disc, Z-phase signal identification method, photoelectric encoder and laser radar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20110223 |