CN108709570A - A kind of ultrahigh resolution encoder - Google Patents
A kind of ultrahigh resolution encoder Download PDFInfo
- Publication number
- CN108709570A CN108709570A CN201810399147.0A CN201810399147A CN108709570A CN 108709570 A CN108709570 A CN 108709570A CN 201810399147 A CN201810399147 A CN 201810399147A CN 108709570 A CN108709570 A CN 108709570A
- Authority
- CN
- China
- Prior art keywords
- sensor
- mechanical arm
- disk
- fixed
- sensor carrier
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
Abstract
The invention discloses a kind of ultrahigh resolution encoders, including disk, voice coil motor, mechanical arm, sensor carrier, sensor, the disk is equipped with magnetic code, the mechanical arm is sleeved in the shaft of voice coil motor, the sensor carrier is fixed on the robotic arm, the sensor is fixed on sensor carrier, and the disk is equipped with mounting hole, and sensor carrier uses air force form Design.The present invention ensures that the distance between sensor and disk are minimized, to improve resolution ratio.
Description
Technical field
The present invention relates to a kind of ultrahigh resolution encoders.
Background technology
Automation control or artificial intelligence equipment are required for feedback element, perceived position, speed etc., this component logical
Often it is called encoder.By the type point of movement, rotary encoder and linear encoder can be divided into.Rotary encoder is for rotating
Formula motor, linear encoder is for linear electric machine (also referred to as linear motor).It is commonly divided into optical encoder, magnetic by principle type
Property encoder.Optical encoder is exactly that some gaps, also referred to as grating are etched on CD, and optical discs in general is fixed on movable body, light
Can be on the photosensitive sensor by gap to the other one side of CD, photosensitive sensor activity optical signal, and then generate pulse electricity
Signal, a gap generate a pulse signal, the position and speed of movable body can be learnt from these signals.Magnetism is compiled
Code device uses disk, has permanent-magnet material on disk, is magnetized to magnetic code in advance, disk is fixed on movable body.In addition magnetic sensing is gone back
Device perceives magnetic signal, position and speed to obtain movable body etc.
No matter optical encoder or magnetic coder, CD or disk with movable body move and senser element be all it is fixed not
Dynamic.Senser element and there is fixed interval (FI) between CD or disk.This gap directly influences the resolution ratio of encoder,
The smaller resolution ratio in gap is higher.But since movable body has the factors such as vibrations, this gap to need to keep a certain range, resolution ratio
Raising be restricted.It is exactly that a pulse signal electron process mode is divided into multiple although resolution ratio can be improved manually
Pulse, but these pulses manually separate, artificial pulse does not test out directly, and error is big, and reliability has
Problem.
Invention content
The purpose of the present invention is overcoming the shortcomings of in existing product, a kind of ultrahigh resolution encoder is provided.
In order to achieve the above object, the present invention is achieved by the following technical solutions：
A kind of ultrahigh resolution encoder, including disk, voice coil motor, mechanical arm, sensor carrier, sensor, it is described
Disk is equipped with magnetic code, and the mechanical arm is sleeved in the shaft of voice coil motor, and the sensor carrier is fixed on the robotic arm, institute
It states sensor to be fixed on sensor carrier, the disk is equipped with mounting hole, and sensor carrier uses air force form Design.
Sensor is fixed on the bottom of sensor carrier.
The invention also includes mechanical arm fixing bracket, mechanical arm fixing bracket is detachably connected with mechanical arm.
Sensor carrier is fixed on the bottom of mechanical arm.
Mechanical arm fixing bracket is located at the outside of disk.
Beneficial effects of the present invention are as follows：The present invention ensures that the distance between sensor and disk are minimized, to
Improve resolution ratio.
Description of the drawings
Fig. 1 is overlooking structure diagram when ultrahigh resolution encoder does not work；
Fig. 2 is the front view of mechanical arm；
Fig. 3 is structural schematic diagram when ultrahigh resolution encoder works.
Specific implementation mode
Technical scheme of the present invention is described further with reference to the accompanying drawings of the specification：
As shown in Fig. 1 to Fig. 3, a kind of ultrahigh resolution encoder, including disk 11, voice coil motor 19, mechanical arm 16, biography
Sensor carrier 17, sensor 18, the disk 11 are equipped with magnetic code 14, and the mechanical arm 16 is sleeved on the shaft of voice coil motor 19
On, therefore mechanical arm 16 is that the center of circle carries out circular-rotation with voice coil motor 19.The sensor carrier 17 is fixed on mechanical arm 16
On, the sensor 18 is fixed on sensor carrier 17, and the disk 11 is equipped with mounting hole 15, and the sensor carrier 17 is adopted
With air force form Design.The sensor 18 is fixed on the bottom of sensor carrier 17.It is solid that the invention also includes mechanical arms
Fixed rack 13, the mechanical arm fixing bracket 13 are detachably connected with mechanical arm 16.The center of circle of circular-rotation is voice coil motor 19.
Sensor carrier 17 is fixed on the bottom of mechanical arm 16.The mechanical arm fixing bracket 13 is located at the outside of disk 11
Gap between disk 1 and sensor directly affects the resolution ratio of encoder.In order to improve resolution ratio, must reduce
Gap, but the too small contact being likely to cause between sensor and disk in gap, and then damage sensor.This patent proposes a kind of
Dynamic clearance encoder, can be the clearance control between sensor and disk to minimum, and then utmostly improves resolution ratio.Mesh
It is typically thousands of that preceding encoder, which can generate directly true pulse signal per revolution, few up to ten thousand.It adopts
With the encoder of dynamic clearance, the true pulse signal that per revolution can be generated directly can reach 1,000,000 orders of magnitude,
The 2-3 order of magnitude is improved than existing encoder.
Operation principle：Dynamic Encoder critical piece has disk and transportable sensor.Have on disk and finishes writing in advance
Magnetic code, be the South Pole being magnetized, arctic magnetic signal on magnetic track.Sensor reads these magnetic signals, generates pulse signal, is used for
Automation control.As shown in Fig. 2, sensor carrier 17 is fixed on mechanical arm 16, the sensor 18 is fixed on sensor load
On body 17, the head end of mechanical arm is sleeved in the shaft of voice coil motor.When not working, mechanical arm is moved to outside disk by voice coil motor
Mechanical arm fixing bracket 13 on, as shown in figure 3, work when, disk rotates first, then voice coil motor control machinery arm, will
Sensor is exactly moved to above magnetic track on a drum or a disk by the end of mechanical arm, as shown in Figure 3 to read signal.Sensor
Carrier 17 makees special air force form Design, comes between adjust automatically sensor carrier 17 and magnetic disk surface by air force
Distance, can ensure that the distance between sensor and disk are minimized in this way, to improve resolution ratio.
The present invention ensures that the distance between sensor and disk are minimized, to improve resolution ratio.
It should be noted that listed above is only a kind of specific embodiment of the present invention.It is clear that the invention is not restricted to
Upper embodiment, can also be there are many deforming, in short, those skilled in the art can directly lead from present disclosure
All deformations for going out or associating, are considered as protection scope of the present invention.
Claims (5)
1. a kind of ultrahigh resolution encoder, which is characterized in that including disk (11), voice coil motor (19), mechanical arm (16), pass
Sensor carrier (17), sensor (18), the disk (11) are equipped with magnetic code (14), and the mechanical arm (16) is sleeved on voice coil motor
(19) in shaft, the sensor carrier (17) is fixed on mechanical arm (16), and the sensor (18) is fixed on sensor
On carrier (17), the disk (11) is equipped with mounting hole (15), and the sensor carrier (17) uses air force form Design.
2. a kind of ultrahigh resolution encoder according to claim 1, which is characterized in that the sensor (18) is fixed on biography
The bottom of sensor carrier (17).
3. a kind of ultrahigh resolution encoder according to claim 1, which is characterized in that further include mechanical arm fixing bracket
(13), the mechanical arm fixing bracket (13) is detachably connected with mechanical arm (16).
4. a kind of ultrahigh resolution encoder according to claim 1, which is characterized in that the sensor carrier (17) is fixed
Bottom in mechanical arm (16).
5. a kind of ultrahigh resolution encoder according to claim 3, which is characterized in that the mechanical arm fixing bracket (13)
Outside positioned at disk (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399147.0A CN108709570A (en) | 2018-04-28 | 2018-04-28 | A kind of ultrahigh resolution encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399147.0A CN108709570A (en) | 2018-04-28 | 2018-04-28 | A kind of ultrahigh resolution encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108709570A true CN108709570A (en) | 2018-10-26 |
Family
ID=63868590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810399147.0A Pending CN108709570A (en) | 2018-04-28 | 2018-04-28 | A kind of ultrahigh resolution encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108709570A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138197A (en) * | 1995-06-07 | 1996-12-18 | 国际商业机器公司 | Edge strengthened substrate of data storage disk and method for fabricating same |
| JPH09204650A (en) * | 1996-01-24 | 1997-08-05 | Sony Corp | Magnetic disk and magnetic disk device |
| JPH09282648A (en) * | 1996-04-11 | 1997-10-31 | Sony Corp | Magnetic disk and magnetic disk device |
| CN1941093A (en) * | 2005-09-29 | 2007-04-04 | 日立环球储存科技荷兰有限公司 | System and method for patterning a master disk for nanoimprinting patterned magnetic recording disks |
| US20070268017A1 (en) * | 2003-11-26 | 2007-11-22 | Andreas Dietzel | High-Resolution Magnetic Encoder |
| CN103871436A (en) * | 2012-12-07 | 2014-06-18 | Hgst荷兰公司 | Emergency power off (epo) island for saving critical data to non-volatile memory |
-
2018
- 2018-04-28 CN CN201810399147.0A patent/CN108709570A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138197A (en) * | 1995-06-07 | 1996-12-18 | 国际商业机器公司 | Edge strengthened substrate of data storage disk and method for fabricating same |
| JPH09204650A (en) * | 1996-01-24 | 1997-08-05 | Sony Corp | Magnetic disk and magnetic disk device |
| JPH09282648A (en) * | 1996-04-11 | 1997-10-31 | Sony Corp | Magnetic disk and magnetic disk device |
| US20070268017A1 (en) * | 2003-11-26 | 2007-11-22 | Andreas Dietzel | High-Resolution Magnetic Encoder |
| CN1941093A (en) * | 2005-09-29 | 2007-04-04 | 日立环球储存科技荷兰有限公司 | System and method for patterning a master disk for nanoimprinting patterned magnetic recording disks |
| CN103871436A (en) * | 2012-12-07 | 2014-06-18 | Hgst荷兰公司 | Emergency power off (epo) island for saving critical data to non-volatile memory |
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