CN206177325U - High accuracy goniometer system - Google Patents
High accuracy goniometer system Download PDFInfo
- Publication number
- CN206177325U CN206177325U CN201621242111.4U CN201621242111U CN206177325U CN 206177325 U CN206177325 U CN 206177325U CN 201621242111 U CN201621242111 U CN 201621242111U CN 206177325 U CN206177325 U CN 206177325U
- Authority
- CN
- China
- Prior art keywords
- shafting
- code
- disc
- light source
- photoelectrical coupler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to a machinery and measure technical field especially relates to high accuracy goniometer system, has code wheel, four light sources, shafting, light source support frame, four -channel optoelectronic coupler decoding system, the code wheel dress is on the shafting, the code wheel is concentric with the shafting, the code wheel is followed the shafting and is rotated, four -channel optoelectronic coupler decoding system just adorns on the shafting below the code wheel, four -channel optoelectronic coupler decoding system does not rotate along with the shafting, four -channel optoelectronic coupler decoding system has along four the linear array charge coupled device s of code wheel circumference with 90 distributions of phase difference, the light source support frame just assembles on the shafting above the code wheel, the light source support frame does not rotate along with the shafting, four light source assemblies are on the light source support frame, four light sources are along the code wheel circumference with directly over 90 distributions of phase difference and being located four linear array charge coupled device. The utility model discloses have that well low frequency angle measurement error is little, measurement accuracy is high, have measurement accuracy real time compensation nature.
Description
Technical field
This utility model is related to machinery and field of measuring technique, more particularly to high precision angle-measuring system, and it is that one kind is based on
The high precision angle measuring apparatus of many frames of reference, absolute coding technology.
Background technology
Photoelectric encoder has high-resolution, system accuracy, Repeatability are good, dynamic response is fast, environmental suitability is strong etc.
Advantage, in being widely used in the instrument and equipment of high-acruracy survey angle.Photoelectric encoder is main to apply as angular surveying element
On total powerstation, electronic theodolite, elevator, telescope, its certainty of measurement directly affects total powerstation, electronic theodolite, elevator, prestige
The certainty of measurement and tracking accuracy of remote mirror.Modern photoelectric encoder is using the double frames of reference of diameter, it is impossible to eliminate code-disc due to system
Make, installation factor produce oval error, and can only eliminate a part code-disc foozle, shafting drunkenness error, code-disc
Eccentric error so that the double frames of reference of traditional diameter are no longer suitable for.In recent years, developing rapidly with observation and control technology, to light
The angle measurement accuracy of electric axis angular encoder, resolving power and reliability are put forward higher requirement.Photoelectric encoder error mainly includes
Code-disc foozle, shafting drunkenness error, code-disc eccentric error, subdivision error, quantization error, detection error etc..These errors
Come from the processes such as code-disc delineation, mechanical debugging, the electronics process of encoder, its result all can be to the certainty of measurement of encoder
Produce impact.
However, the angle measurement performance of encoder can usually be subject to various mechanical debugging errors, parts machining error, measure
The impact of all kinds of error components such as journey random error, in the case of system angle measurement accuracy is required as rad or sub- rad level, often
Requirement can not be met.
Utility model content
The purpose of this utility model is：Rocked by shafting using many frames of reference, the elimination of absolute coding technology, grating is installed
The middle low frequency angle error that eccentric and ellipse etc. causes.In precision angle occasion, it is to improve angle measurement accuracy most generally most to have
The means of effect, and with real-Time Compensation.To reach above-mentioned purpose, this utility model is realized by descending technical scheme
's.
High precision angle-measuring system, with code-disc 1, four light sources 2, shafting 3, light source bracing frame 4, four-way photoelectrical couplers
Solution code system 5；Code-disc 1 is assemblied in shafting 3, and code-disc 1 is concentric with shafting 3, and code-disc 1 follows shafting 3 to rotate, four-way light thermocouple
Clutch solution code system 5 is below code-disc 1 and is assemblied in shafting 3, and four-way photoelectrical coupler solution code system 5 is not with 3 turns of shafting
Dynamic, four-way photoelectrical coupler solution code system 5 has four linear charge-coupled array, four-way photoelectrical coupler solution code system
5 four linear charge-coupled array are uniformly distributed for 90 ° along the code-disc circumference with phase contrast, and light source bracing frame 4 is on code-disc 1
Side and it is assemblied in shafting 3, light source bracing frame 4 is not rotated with shafting 3, and four light sources 2 are assemblied on light source bracing frame 4, four
Light source 2 is uniformly distributed and directly over four linear charge-coupled array for 90 ° along the circumference of code-disc 1 with phase contrast.
High precision angle-measuring system described above, it is characterised in that the code-disc is raster pattern individual pen absolute coding code-disc,
The coding is concentric with code-disc.
High precision angle-measuring system described above, it is characterised in that the four-way photoelectrical coupler solution code system includes one
Individual 32 MCU.
High precision angle-measuring system described above, it is characterised in that the code-disc, four-way photoelectrical coupler solution code system
All it is concentrically mounted in the shafting.
High precision angle-measuring system described above, it is characterised in that four light sources are distributed in shafting external symmetry.
High precision angle-measuring system described above, it is characterised in that the light source bracing frame is distributed in shafting external symmetry.
High precision angle-measuring system described above, it is characterised in that the four-way photoelectrical coupler machine code system, four
Individual light source, light source bracing frame are not rotated with shafting.
In this utility model, four-way photoelectrical coupler solution code system includes four linear charge-coupled array, four lines
It is uniform with 90 ° of phase contrast that array charge-coupled device encodes circumference along the code-disc, can effectively eliminate rocked by shafting, code-disc peace
The middle low frequency angle error that dress bias and grating circularity etc. cause.In precision angle occasion, it is to improve angle measurement accuracy extremely
Effective means, and with real-Time Compensation.
This utility model has that middle low frequency angle error is little, certainty of measurement is high, with certainty of measurement real-Time Compensation.
Description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Specific embodiment：
Fig. 1 is asked for an interview, in order that content of the present utility model is easier to be clearly understood, below according to specific embodiment simultaneously
With reference to accompanying drawing, this utility model is described in further detail, the corresponding relation of reference and title is presented herein below：1-code
Disk, 2-four light sources, 3-shafting, 4-light source bracing frame, 5-four-way photoelectrical coupler solution code systems.
High precision angle-measuring system, with code-disc 1, four light sources 2, shafting 3, light source bracing frame 4, four-way photoelectrical couplers
Solution code system 5；Code-disc 1 is assemblied in shafting 3, and code-disc 1 is concentric with shafting 3, and code-disc 1 follows shafting 3 to rotate, four-way light thermocouple
Clutch solution code system 5 is below code-disc 1 and is assemblied in shafting 3, and four-way photoelectrical coupler solution code system 5 is not with 3 turns of shafting
Dynamic, four-way photoelectrical coupler solution code system 5 has four linear charge-coupled array, four-way photoelectrical coupler solution code system
5 four linear charge-coupled array are uniformly distributed for 90 ° along the code-disc circumference with phase contrast, and light source bracing frame 4 is on code-disc 1
Side and it is assemblied in shafting 3, light source bracing frame 4 is not rotated with shafting 3, and four light sources 2 are assemblied on light source bracing frame 4, four
Light source 2 is uniformly distributed and directly over four linear charge-coupled array for 90 ° along the circumference of code-disc 1 with phase contrast.
High precision angle-measuring system described above, it is characterised in that the code-disc is raster pattern individual pen absolute coding code-disc,
The coding is concentric with code-disc.
High precision angle-measuring system described above, it is characterised in that the four-way photoelectrical coupler solution code system includes one
Individual 32 MCU.
High precision angle-measuring system described above, it is characterised in that the code-disc, four-way photoelectrical coupler solution code system
All it is concentrically mounted in the shafting.
High precision angle-measuring system described above, it is characterised in that four light sources are distributed in shafting external symmetry.
High precision angle-measuring system described above, it is characterised in that the light source bracing frame is distributed in shafting external symmetry.
High precision angle-measuring system described above, it is characterised in that the four-way photoelectrical coupler machine code system, four
Individual light source, light source bracing frame are not rotated with shafting.
The course of work of the present utility model is:First it is prepared:Code-disc 1 is installed according to the structure described in apparatus structure；Four
Individual light source 2；Shafting 3；Light source bracing frame 4；Four-way photoelectrical coupler solution code system 5；The brightness of four light sources 2 or four electric charges
The sensitive time of coupled apparatus is adjusted to desired value；The angle of four passage photoelectric coupled devices is successively read, four is resolved and is led to
The relative position relation of road photoelectric coupled device；Enter back into working stage：32 of four-way photoelectrical coupler solution code system 5
MCU control first passage photoelectric coupled devices enter working condition, 32 MCU controls of four-way photoelectrical coupler solution code system 5
The light source of first passage processed enters working condition, and now the light source above first passage illuminates the code-disc coding of first passage position
1 and project to the photoelectric coupled device surface of first passage.32 MCU controls the of four-way photoelectrical coupler solution code system 5
The photoelectric coupled device outputting encoded data of one passage, and decoded by amplifying circuit 32 MCU of feeding.
Obtain the coded data of remaining three passages successively in the manner described above, and 32 MCU are sent into by amplifying circuit
Decoded.
After the angle-data of four passages is resolved, can effectively be eliminated by shafting by many-valued average, diameter averaging method
Rock, the middle low frequency angle error that code-disc setting-up eccentricity and grating circularity etc. cause.In precision angle occasion, it is to improve to survey
The most universal maximally effective means of angular accuracy, and with real-Time Compensation.
This utility model eliminated using many frames of reference, absolute coding technology rocked by shafting, grating setting-up eccentricity and ellipse
The middle low frequency angle error that circle etc. causes.In precision angle occasion, it is to improve the effective means of angle measurement accuracy, and is had
Real-Time Compensation.
This utility model has that middle low frequency angle error is little, certainty of measurement is high, with certainty of measurement real-Time Compensation.
Particular embodiments described above, the purpose, technical scheme and beneficial effect to utility model has been carried out further
Describe in detail, should be understood that and the foregoing is only specific embodiment of the utility model, be not limited to this reality
With new, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements done etc. all should be included
Within protection domain of the present utility model.
Claims (7)
1. high precision angle-measuring system, it is characterised in that it has code-disc（1）, four light sources（2）, shafting（3）, light source bracing frame
（4）, four-way photoelectrical coupler solution code system（5）；Code-disc（1）It is assemblied in shafting（3）On, code-disc（1）With shafting（3）With one heart,
Code-disc（1）Follow shafting（3）Rotate, four-way photoelectrical coupler solution code system（5）In code-disc（1）Lower section and it is assemblied in shafting
（3）On, four-way photoelectrical coupler solution code system（5）Not with shafting（3）Rotate, four-way photoelectrical coupler solution code system（5）
With four linear charge-coupled array, four-way photoelectrical coupler solution code system（5）Four linear charge-coupled array edges
The code-disc circumference is uniformly distributed for 90 ° with phase contrast, light source bracing frame（4）In code-disc（1）Top and it is assemblied in shafting（3）On,
Light source bracing frame（4）Not with shafting（3）Rotate, four light sources（2）It is assemblied in light source bracing frame（4）On, four light sources（2）Along code
Disk（1）Circumference is uniformly distributed and directly over four linear charge-coupled array for 90 ° with phase contrast.
2. high precision angle-measuring system according to claim 1, it is characterised in that the code-disc is definitely compiled for raster pattern individual pen
Code code-disc, the coding is concentric with code-disc.
3. high precision angle-measuring system according to claim 1, it is characterised in that the four-way photoelectrical coupler decoding system
System includes 32 MCU.
4. high precision angle-measuring system according to claim 1, it is characterised in that the code-disc, four-way photoelectrical coupler solution
Code system is all concentrically mounted in the shafting.
5. high precision angle-measuring system according to claim 1, it is characterised in that four light sources are in shafting external symmetry point
Cloth.
6. high precision angle-measuring system according to claim 1, it is characterised in that the light source bracing frame is in shafting external symmetry
Distribution.
7. high precision angle-measuring system according to claim 1, it is characterised in that the four-way photoelectrical coupler machine code
System, four light sources, light source bracing frames are not rotated with shafting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621242111.4U CN206177325U (en) | 2016-11-21 | 2016-11-21 | High accuracy goniometer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621242111.4U CN206177325U (en) | 2016-11-21 | 2016-11-21 | High accuracy goniometer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177325U true CN206177325U (en) | 2017-05-17 |
Family
ID=58687050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621242111.4U Active CN206177325U (en) | 2016-11-21 | 2016-11-21 | High accuracy goniometer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482668A (en) * | 2016-11-21 | 2017-03-08 | 班戈设备系统（苏州）有限公司 | A kind of angle pinpoint accuracy measuring system and angle-measuring method |
-
2016
- 2016-11-21 CN CN201621242111.4U patent/CN206177325U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482668A (en) * | 2016-11-21 | 2017-03-08 | 班戈设备系统（苏州）有限公司 | A kind of angle pinpoint accuracy measuring system and angle-measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106482668A (en) | A kind of angle pinpoint accuracy measuring system and angle-measuring method | |
| CN1036545C (en) | Combination optical and capacitive absolute position apparatus and method | |
| CN102706373B (en) | Single-track absolute grating scale and image coding method thereof | |
| CN104457806B (en) | Composite type rotary encoder and measurement method thereof | |
| US9140580B2 (en) | Method and apparatus for angle measurement | |
| CN103759749A (en) | Single-code-channel absolute position encoder | |
| CN103983290A (en) | Composite type absolute value encoder | |
| CN106482669B (en) | A kind of angle displacement measurement system using twin-line array image detector | |
| CN106017520A (en) | Absolute optical encoder encoding method and encoder for implementing same | |
| CN105953824B (en) | A kind of photoelectric code disk and encoder | |
| CN203881354U (en) | Combined type encoder | |
| CN102620657B (en) | Linear displacement measuring method and measuring device | |
| CN204831337U (en) | Big absolute formula photoelectric encoder of narrow ring of hollow shaft many circles of ultra -thin type high accuracy | |
| CN100464160C (en) | Absolute compound axis photoelectric shaft-position encoder | |
| CN103528605A (en) | Capacitive absolute rotary encoder | |
| CN110081837A (en) | A method of by detecting shafting shaking and eccentric error using angle measurement Circular gratings and reading head | |
| CN106679607A (en) | Absolute combination angle measuring system with induction synchronizer | |
| CN106197292A (en) | A kind of building displacement monitoring method | |
| CN102418334A (en) | Remote automatic monitoring system for subgrade settlement and monitoring method thereof | |
| CN1117966C (en) | Incremental encoder | |
| CN103411635B (en) | A kind of absolute grating ruler encodes grand micro-Combined Mining diversity method | |
| CN206177325U (en) | High accuracy goniometer system | |
| CN108180823A (en) | A kind of two-stage type magnetic absolute angle encoder | |
| CN110345976B (en) | Magneto-optical hybrid encoder system | |
| CN102095378B (en) | Grating linear displacement transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |