CN203981189U - The rotary encoder of full light formula Optical Fiber Transmission - Google Patents
The rotary encoder of full light formula Optical Fiber Transmission Download PDFInfo
- Publication number
- CN203981189U CN203981189U CN201420460541.8U CN201420460541U CN203981189U CN 203981189 U CN203981189 U CN 203981189U CN 201420460541 U CN201420460541 U CN 201420460541U CN 203981189 U CN203981189 U CN 203981189U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- optical
- fiber group
- coding
- rotary encoder
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Optical Transform (AREA)
Abstract
A kind of rotary encoder of full light formula Optical Fiber Transmission is provided, in airtight shell, be provided with rotating shaft, in described rotating shaft, be fixed with optical encoding disk, on described optical encoding disk, be shaped with many coding optical tracks, luminous end optical fiber group and receiving end optical fiber group one end be every coding optical track of unsettled correspondence respectively, described luminous end optical fiber group and the receiving end optical fiber group other end are drawn outside shell, and are connected to and on the photoelectric coupling circuit away from interference source, export correct electric signal coding with transmission cable.The utility model is energy and the communication of full light formula, there is no electric signal, there is no electric component, has the ability of best anti-electromagnetic interference (EMI), and lightweight, and anti-seismic performance is good, has very high practical value.
Description
Technical field
The utility model optical rotary encoder technical field, is specifically related to a kind of rotary encoder of full light formula Optical Fiber Transmission, adopts the structural design of full optics, there is no electric component, and coded message can not be subject to the interference of various electromagnetic signals completely.
Background technology
Rotary encoder is a kind of sensor of inspected object rotation physical quantity, as long as input electric energy just has and can directly enter the output electric pulse of digital display circuit, can measure the angular velocity of the angle of object rotation, the number of turns turning over, rotation etc.; Rotary encoder is stable, is widely used in system that rotation system or rotation be converted to translation.But in actual applications, existing rotary encoder is all with cable, conventionally be all arranged on from motor on the rotating machinery close to very, when equipment moves, in motor and opertaing device thereof and power cable, can produce extremely strong undesired signal, can produce the interference that is difficult to resist to the cable of the circuit of scrambler inside or its connection; Or the static discharge of equipment generation in service or aerial thunder and lightning can hit scrambler; Or all possible interference meeting, along scrambler cable, is transferred in connected electronic equipment and goes, the mistake that these all can make the electronic system based on scrambler occur being difficult to prediction, has had a strong impact on safety in production.Existing scrambler, owing to switching on, has cable, is difficult in principle eliminate disturb, and is therefore necessary to propose to improve.
Utility model content
The technical matters that the utility model solves: provide a kind of and there is no electric signal, there is no electric component, can resist the rotary encoder of the full light formula Optical Fiber Transmission of various electromagnetic signals interference.
The technical solution adopted in the utility model: the rotary encoder of full light formula Optical Fiber Transmission, in airtight shell, be provided with rotating shaft, in described rotating shaft, be fixed with optical encoding disk, on described optical encoding disk, be shaped with many coding optical tracks, luminous end optical fiber group and receiving end optical fiber group one end be every coding optical track of unsettled correspondence respectively, described luminous end optical fiber group and the receiving end optical fiber group other end are drawn outside shell, and are connected to and on the photoelectric coupling circuit away from interference source, export correct electric signal coding with transmission cable.
Wherein, described photoelectric coupling circuit consists of luminous coupling unit and opto-electronic conversion unit, wherein, the luminous end optical fiber group other end is electrically connected to luminous coupling unit by transmission cable after drawing shell, and the receiving end optical fiber group other end is drawn and by another root transmission cable, is electrically connected to the correct electric signal of output with photoelectric conversion unit after shell and encodes.
Further, the end face of described luminous end optical fiber group and each self-corresponding every pair of optical fiber of receiving end optical fiber group is for passing optical flat or the lenticule of light.
Further, described optical encoding disk is printing opacity or lighttight transmission-type code-wheel, or is reflective or opaque reflective code-wheel.
Further, described coding optical track is four Gray code optical tracks or eight Gray code optical tracks or four circle of position cylinder optical tracks.
The utility model is compared with prior art energy and the communication of full light formula, there is no electric signal, there is no electric component, has the ability of best anti-electromagnetic interference (EMI), and lightweight, and anti-seismic performance is good, has very high practical value.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is that optical encoding disk of the present utility model is the structural representation of four Gray code optical tracks;
Fig. 3 is that optical encoding disk of the present utility model is the structural representation of eight Gray code optical tracks;
Fig. 4 is that optical encoding disk of the present utility model is the structural representation of increment type coding optical track, is followed successively by from inside to outside Z, A, the B optical track of encoding;
Fig. 5 is that optical encoding disk of the present utility model is the perspective view of four coding optical tracks;
Fig. 6 is that optical encoding disk of the present utility model is the structural representation of four circle of position cylinder coding optical tracks;
Fig. 7 is that optical encoding disk of the present utility model is the perspective view of eight coding optical tracks;
Fig. 8 is that optical encoding disk of the present utility model is two kinds of possible schematic diagram of the optical texture of transmission-type code-wheel and optical fiber head and light path, and wherein the optical fiber head of luminous end optical fiber group is optical flat or lenticule, and the optical fiber head of receiving end optical fiber group is lenticule.
Fig. 9 is that optical encoding disk of the present utility model is two kinds of possible schematic diagram of the optical texture of reflective code-wheel and optical fiber head and light path, and wherein the optical fiber head of luminous end optical fiber group is optical flat or lenticule, and the optical fiber head of receiving end optical fiber group is lenticule.
Embodiment
Below in conjunction with accompanying drawing 1-9, embodiment of the present utility model is described.In Fig. 2, Fig. 3 and Fig. 4, black region represents light tight or not reflective, and white portion represents printing opacity or reflective.
The rotary encoder of full light formula Optical Fiber Transmission, in airtight shell 1, be provided with rotating shaft 3, in described rotating shaft 3, be fixed with optical encoding disk 2, specifically, described optical encoding disk 2 is printing opacity or lighttight transmission-type code-wheel, or is reflective or opaque reflective code-wheel.On described optical encoding disk 2, be shaped with many coding optical tracks 10, coding optical track 10 is four Gray code optical tracks or eight Gray code optical tracks or four circle of position cylinder optical tracks.Luminous end optical fiber group 4 and receiving end optical fiber group 5 one end are every coding optical track 10 of unsettled correspondence respectively, and specifically, the end face of described luminous end optical fiber group 4 and receiving end optical fiber group 5 each self-corresponding every pair of optical fiber is for passing optical flat 8 or the lenticule 9 of light.Described luminous end optical fiber group 4 and receiving end optical fiber group 5 other ends are drawn outside shell 1, and are connected to away from the photoelectric coupling circuit 7 of interference source and export correct electric signal coding with transmission cable 6.Specifically, described photoelectric coupling circuit 7 consists of luminous coupling unit 11He opto-electronic conversion unit 12, wherein, luminous end optical fiber group 4 other ends are electrically connected to luminous coupling unit 11 by transmission cable 6 after drawing shell 1, and receiving end optical fiber group 5 other ends are drawn and by another root transmission cable 6 and photoelectric conversion unit 12, are electrically connected to and export correct electric signal after shell 1 and encode.
For incremental encoder, only need 3 pairs of optical fiber, three coding optical tracks 10 of Z, A, B (seeing the explanation of Fig. 4) on aiming at are respectively just passable, it shown in Fig. 4, is the coding optical track pattern of 16 calibration, can be by the needs of precision during actual enforcement, design and produce the coding optical track pattern of the higher number of divisions, as being designed to the coding optical track pattern of 256 calibration.For absolute type encoder, the figure place of its output encoder, the number of the optical track 10 of encoding exactly, is also the paired quantity of optical fiber, and figure place is higher, and resolution is also higher, and the technological requirement of processing is just higher; The binary number form that its optical encoding disk 2 can be corresponding figure place can be also the form of Gray code.
Example 1: take Fig. 7 as example, this is the rotary encoder of 8 basic codes.Shell 1 is cylindric, and two upper and lower circular end caps are detachable, and the circular end cap of two is symmetrical structure; On each circular end cap and cylindrical shell 1, there is telltale mark; The center of two circular end caps is used for installing rotating shaft 3; The guide groove and the cover plate that on the internal face of each circular end cap, have location and fixed fiber; The screw that has regular coding dish 2 in rotating shaft 3; Optical track pattern on optical encoding disk 2 can be 8 Gray codes (as Fig. 3), can be also 8 bit forms, and the optical characteristics of optical encoding disk 2 optical tracks is printing opacity and lighttight transmission-type (as Fig. 8); In the outside wall surface of shell 1, leave the fairlead of transmission cable 6.Every optical fiber processing in the transmission cable of 16 cores 6 one end is become to optical flat 8 or lenticule 9, ecto-entad pierces into the fairlead of transmission cable 6, again by every optical fiber of 16 cores, every 8 is one group (corresponding luminous end optical fiber group 4 and receiving end optical fiber group 5 respectively), be embedded into respectively in the guide groove of two circular end caps, and by optical fiber the order in guide groove, be marked on the other end exit of optical cable, afterwards good and sound cover plate; Alignment mark is first installed and is fixed a circular end cap, then the rotating shaft 3 that installs optical encoding disk 2 is installed to a round nose covers, afterwards another circular end cap is arranged on cylindrical shell 1 through rotating shaft 3, and fixing after alignment mark; By 8 of the other end exits of the transmission cable of 16 cores 6 (corresponding luminous end optical fiber group 4), receive on the luminous coupling unit 11 of photoelectric coupling circuit 7, another 8 (corresponding receiving end optical fiber groups 5) press flag sequence, receive successively on photoelectric coupling unit for promoting inhibition 12; After energising check, the transmission cable 6 in shell 1 fairlead is carried out to fixing and sealing.For easy accessibility, can be on the fairlead of scrambler and photoelectric coupling circuit plate optical cable plug in design and installation, by optical cable plug in two design and installation of middle long optical cable.
Example 2: take Fig. 5 as example, this is the rotary encoder of 4 basic codes, change transmission cable 6 into 8 cores, and optical encoding disk 2 changes 4 into, remaining structure, processing, assembling etc. are identical with embodiment 1, and its overall dimensions also can dwindle compared with embodiment 1.
Example 3: incremental rotary encoder, its structure, processing, assembling etc. are identical with example 1, and structure and Fig. 1 or Fig. 5 are close, and just Transmission Fibers 6 is selected the optical cable of 6 cores, and the optical track pattern of optical encoding disk 2 is as shown in Figure 4.
Example 4: the rotary encoder of cylindrical shape coding disc type, referring to Fig. 6, optical encoding disk 2 is cylinder barrel shaped that there is the end one end, bottom is porose, can be set with and be fixed in rotating shaft 3, the central axes of the central axis of cylindrical drum and rotating shaft 3; The annular of arranging on the outer circumference surface of cylindrical drum, coding optical track 10 patterns of concentric co-axial, two groups of fiber placings are on the inside and outside optical track of cylinder; In Fig. 6, do not draw the pattern of coding optical track, the pattern of its coding optical track is similar to Fig. 2, Fig. 3 or Fig. 4, is equivalent to discoid in Fig. 2, Fig. 3 or Fig. 4 from the outside stretcher strain of center fenestra, is transformed into the pattern cylindric.Remaining structure, processing, assembling etc. are similar to embodiment 1.
In Fig. 8, the optical texture that optical encoding disk 2 is transmission-type code-wheel and optical fiber head and light path have two kinds of possibilities, and wherein the optical fiber head of luminous end optical fiber group 4 is optical flat or lenticule, and the optical fiber head of receiving end optical fiber group 5 is lenticules.
In Fig. 9, the optical texture that optical encoding disk 2 is reflective code-wheel and optical fiber head and light path have two kinds of possibilities, wherein the optical fiber head of luminous end optical fiber group 4 is optical flat or lenticule, the optical fiber head of receiving end optical fiber group 5 is lenticules, but by reflected light angle, is symmetrical arranged between adjacent fiber.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, and the equivalence of being done with content described in the utility model claim therefore all changes, within all should being included in the utility model claim scope.
Claims (5)
1. the rotary encoder of full light formula Optical Fiber Transmission, it is characterized in that: in airtight shell (1), be provided with rotating shaft (3), in described rotating shaft (3), be fixed with optical encoding disk (2), on described optical encoding disk (2), be shaped with many coding optical tracks (10), luminous end optical fiber group (4) and receiving end optical fiber group (5) one end be every coding optical track (10) of unsettled correspondence respectively, described luminous end optical fiber group (4) and receiving end optical fiber group (5) other end are drawn outside shell (1), and be connected to the correct electric signal coding of the upper output of photoelectric coupling circuit (7) away from interference source with transmission cable (6).
2. the rotary encoder of full light formula Optical Fiber Transmission according to claim 1, it is characterized in that: described photoelectric coupling circuit (7) consists of luminous coupling unit (11) and opto-electronic conversion unit (12), wherein, luminous end optical fiber group (4) other end is electrically connected to luminous coupling unit (11) by transmission cable (6) after drawing shell (1), and receiving end optical fiber group (5) other end is electrically connected to by another root transmission cable (6) the electric signal coding that output is correct after drawing shell (1) with photoelectric conversion unit (12).
3. the rotary encoder of full light formula Optical Fiber Transmission according to claim 1, is characterized in that: the end face of described luminous end optical fiber group (4) and each self-corresponding every pair of optical fiber of receiving end optical fiber group (5) is for passing optical flat (8) or the lenticule (9) of light.
4. the rotary encoder of full light formula Optical Fiber Transmission according to claim 1, is characterized in that: described optical encoding disk (2) is printing opacity or lighttight transmission-type code-wheel, or is reflective or opaque reflective code-wheel.
5. according to the rotary encoder of the full light formula Optical Fiber Transmission described in claim 1 or 2 or 3 or 4, it is characterized in that: described coding optical track (10) is four Gray code optical tracks or eight Gray code optical tracks or four circle of position cylinder optical tracks or increment type coding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460541.8U CN203981189U (en) | 2014-08-14 | 2014-08-14 | The rotary encoder of full light formula Optical Fiber Transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460541.8U CN203981189U (en) | 2014-08-14 | 2014-08-14 | The rotary encoder of full light formula Optical Fiber Transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981189U true CN203981189U (en) | 2014-12-03 |
Family
ID=51978619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460541.8U Withdrawn - After Issue CN203981189U (en) | 2014-08-14 | 2014-08-14 | The rotary encoder of full light formula Optical Fiber Transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121937A (en) * | 2014-08-14 | 2014-10-29 | 吕宏强 | All-optical fiber transmission type rotary coder |
-
2014
- 2014-08-14 CN CN201420460541.8U patent/CN203981189U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121937A (en) * | 2014-08-14 | 2014-10-29 | 吕宏强 | All-optical fiber transmission type rotary coder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102147279B (en) | Character-wheel-type meter reading method and character-wheel-type direct-reading meter | |
| CN203981189U (en) | The rotary encoder of full light formula Optical Fiber Transmission | |
| CN103487077A (en) | Optical fiber output photoelectric encoder | |
| CN101872065B (en) | Combined raster scanning system of photoelectric shaft angle encoder | |
| CN203464944U (en) | Multi ring absolute encoder applied to multi turn electric actuator | |
| CN102944257B (en) | Numerical word wheel of direct-reading gage | |
| CN104121937B (en) | The rotary encoder of full light formula fiber-optic transfer | |
| CN106650908A (en) | Axial reflection photoelectric direct reading device | |
| CN205483129U (en) | Direct -reading intelligence remote gas meter based on communication of plastics optical fiber sensing | |
| CN103791938B (en) | The data sensor harvester of intelligent metering instrument | |
| CN103499357B (en) | Remote transmission instrument electricity consumption signal-count photoelectric direct-reading apparatus | |
| CN105157734A (en) | Encoder | |
| CN201392220Y (en) | Photoelectric coding counter for direct-reading water meter | |
| CN102629338A (en) | Instrument coding print wheel apparatus and coding method | |
| CN201993797U (en) | Shooting processing device for mechanical counter | |
| CN204988404U (en) | Direct - reading photoelectric water meter based on double -ring character wheel of encoding | |
| CN201787960U (en) | Combined raster scanning device of photoelectric angular shaft encoder | |
| CN105180976A (en) | Magneto-electric mixing type absolute value encoder | |
| CN104201944B (en) | A kind of high voltage synchronous machine speed of optical fiber interface and position detection interface circuit | |
| CN205482996U (en) | Photoelectric coding counter based on plastics optical fiber sensing and communication | |
| CN204405090U (en) | A kind of absolute value encoder based on Novel guard board formula photoelectric code disk | |
| CN103017803A (en) | Coded disc for encoders | |
| CN102901522A (en) | Optical fibre transmission type rotary encoding device | |
| CN205192508U (en) | Anti light type encoder of intelligence count | |
| CN202547712U (en) | Instrument encoding character wheel device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20161026 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |