CN101788568B - Unidirectional rotation detecting device and method - Google Patents
Unidirectional rotation detecting device and method Download PDFInfo
- Publication number
- CN101788568B CN101788568B CN 201010104754 CN201010104754A CN101788568B CN 101788568 B CN101788568 B CN 101788568B CN 201010104754 CN201010104754 CN 201010104754 CN 201010104754 A CN201010104754 A CN 201010104754A CN 101788568 B CN101788568 B CN 101788568B
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- conveying belt
- detecting device
- runner
- rotation detecting
- stub
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Abstract
The invention provides unidirectional rotation detecting device and method. The rotation detecting device comprises a rotating wheel, a plurality of conductor bars, metal guide rails, a magnetic field, an amperemeter and a rotating mechanism, wherein the rotating mechanism is in driving connection with the rotating wheel. The plurality of conductor bars are fixed on the rotating mechanism in a mutual parallel way; at least one conductor bar is lapped with the metal guide rails and is connected with the amperemeter through the metal guide rails to form a closed loop in the motion process of the rotating mechanism; and the amperemeter is used for detecting current of the closed loop. The magnetic field is vertical to a plane formed by the closed loop, wherein the rotating wheel rotates towards a third direction and simultaneously the rotating mechanism drives the conductor bars to move towards a first direction along the metal guide rails. In the rotation detecting device, with special structural design, the rotation of the rotating wheel is converted into horizontal movement of the conductor bars and the moving direction of the conductor bars can be judged according to an electromagnetic induction law, thereby realizing the unidirectional rotation detection of the rotating wheel.
Description
Technical field
The present invention relates in particular to a kind of pick-up unit and method that can detect one-directional rotation about a kind of rotation detecting device and method.
Background technology
Employed fender adopts runner to supply with in the liquid crystal indicator, but the possibility that runner stops or reversing may occur in actual use, so can cause fender in time to supply with, and causes the phenomenons such as omission.See also Figure 1A and 1B, Figure 1A and 1B are depicted as the synoptic diagram of rotation detecting device of the prior art.At present the turning feeler mechanism 1 of fender is with code-wheel or sun gear form, by the transmission sensor shielding status of light detected to have judged whether rotation.Shown in Figure 1A, has through hole spaced apart 3 on the code wheel 2, light can see through in through hole 3, around code wheel 2, be provided with in addition the OPTICAL SENSORS (not shown), along with the rotation of code wheel 2, when through hole 3 relative OPTICAL SENSORS, OPTICAL SENSORS can receive " bright " signal, when the 4 relative OPTICAL SENSORS of the zone of 3 of two through hole, OPTICAL SENSORS can receive " secretly " signal.Therefore, when code wheel 2 normal rotation, OPTICAL SENSORS is by the light detecting to seeing through, if the light flux variations of similar " bright dark bright dark ... " is arranged, program will think that code wheel 2 has rotation.
But the shortcoming of this kind rotation detecting device 1 is that it is to reverse rotation (rotation opposite with demand direction), can't do correspondence detects, because when code wheel 2 backward rotation, what OPTICAL SENSORS sensed also is the light flux variations of similar " bright dark bright dark ... ".In addition, also have a kind of situation, as shown in Figure 1B, also can't judge reciprocal rotation rotation detecting device 1 of the prior art.For example, if torsion is excessive, cause reality not rotate, but fender is because of self elastic force, so that code wheel or sun gear 2 have reciprocal action, at this moment, what OPTICAL SENSORS sensed also is the light flux variations of similar " bright dark bright dark ... ", this makes the optical check of OPTICAL SENSORS cause " deception " effect, thinks effective rotation, thereby causes unusual generation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of unidirectional rotation detecting device and method, judge the sense of rotation of runner by the law of electromagnetic induction.
For reaching above-mentioned purpose, the invention provides a kind of unidirectional rotation detecting device, this rotation detecting device comprises runner, stub, metal guide rail, magnetic field, galvanometer and rotating mechanism.Runner is in order to supply weblike material; Rotating mechanism and this runner are in transmission connection.A plurality of stubs are fixed on this rotating mechanism in parallel to each other, and in this rotating mechanism motion process, at least one this stub and metal guide rail overlap joint and by this metal guide rail and the galvanometer formation closed-loop path that joins, this galvanometer is in order to detect the electric current in this closed-loop path.The plane that magnetic field forms perpendicular to this closed-loop path.Wherein, this runner rotates towards third direction, this rotating mechanism drives this stub and moves towards first direction along this metal guide rail simultaneously, perhaps this runner is towards the four directions opposite with this third direction to rotation, and this rotating mechanism drives this stub and moves along this metal guide rail towards second direction opposite with this first direction simultaneously.
As optional technical scheme, this rotating mechanism comprises the first rotating shaft and the second rotating shaft, the first conveying belt and the second conveying belt that be arranged in parallel.The first conveying belt connects this first rotating shaft and this second rotating shaft, this first conveying belt that rotarily drives by this first rotating shaft and the second rotating shaft moves, and this stub is fixed on this first conveying belt and move along this metal guide rail by the moving belt moving-conductor rod of the first conveying belt.This runner is connected with this first rotating shaft by this second conveying belt.
As optional technical scheme, this rotating mechanism comprises the first pair roller and the second pair roller, the first conveying belt, the second conveying belt and the 3rd conveying belt that be arranged in parallel.The first conveying belt connects this first pair roller; The 3rd conveying belt connects this second pair roller, and this first conveying belt is parallel with the 3rd conveying belt, and this stub is striden to establish and be fixed on this first conveying belt and the 3rd conveying belt and drive this stub by moving of this first conveying belt and the 3rd conveying belt and moved along this metal guide rail; This runner is connected with arbitrary roller in this first pair roller by this second conveying belt.
As optional technical scheme, this weblike material is padded coaming.
As optional technical scheme, this third direction is clockwise direction, and this four directions is to being counter clockwise direction.
As optional technical scheme, this rotation detecting device also comprises treating apparatus, is electrically connected with this galvanometer.
As optional technical scheme, this rotation detecting device also comprises alarm, is electrically connected with treating apparatus.
The present invention also provides a kind of one-directional rotation detection method, and this rotation detection method comprises provides aforesaid rotation detecting device; This runner rotates towards this third direction, this rotating mechanism drives this stub and moves towards this first direction along this metal guide rail simultaneously, perhaps this runner is towards this four directions to rotation, and this rotating mechanism drives this stub and moves towards this second direction along this metal guide rail simultaneously; This stub cuts this Movement in Magnetic Field generation current; And the direction of motion of judging this runner according to this electric current that this galvanometer records.
As optional technical scheme, this rotation detecting device also comprises treating apparatus, is electrically connected with this galvanometer, and this treating apparatus receives and process this galvanometric current information.
As optional technical scheme, this rotation detecting device also comprises alarm, is electrically connected with this treating apparatus; When in the measured electric current of galvanometer and the treating apparatus during predetermined current opposite direction, treating apparatus can send signal to alarm, alarm equipment alarm.
Compared with prior art, the advantage of rotation detecting device of the present invention and method is to judge orderly motion.Rotation detecting device of the present invention converts the motion of stub to by the rotation with runner, the stub cutting magnetic field moves so that the magnetic flux in the closed-loop path changes, thereby generation current, and the increase of magnetic flux or the trend that diminishes, the direction of current that produces is different, by the detection of electric current being judged the rotation direction of runner.
Can be by following detailed Description Of The Invention and appended graphic being further understood about the advantages and spirit of the present invention.
Description of drawings
Figure 1A and Figure 1B are depicted as the synoptic diagram of rotation detecting device of the prior art;
Figure 2 shows that the schematic perspective view of the rotation detecting device of first embodiment of the invention;
Figure 3 shows that the front elevation of the rotation detecting device among Fig. 2;
The synoptic diagram of direction of current in closed-loop path when Fig. 4 A and Fig. 4 B are depicted as stub among Fig. 2 and move along metal guide rail;
Figure 5 shows that the front view of rotation detecting device second embodiment of the invention;
Figure 6 shows that the schematic flow sheet according to rotation detection method of the present invention.
Embodiment
See also Fig. 2 to Fig. 4 B, Figure 2 shows that the schematic perspective view of the rotation detecting device of first embodiment of the invention, Figure 3 shows that the front elevation of the rotation detecting device among Fig. 2, the synoptic diagram of direction of current in closed-loop path when Fig. 4 A and Fig. 4 B are depicted as stub among Fig. 2 and move along metal guide rail.Unidirectional rotation detecting device 10 provided by the invention comprises runner 13, a plurality of stub 16, metal guide rail 17 (17 '), magnetic field B, galvanometer 18 and rotating mechanism 30.Runner 13 is in order to supply weblike material (not illustrating), and wherein weblike material for example is the employed padded coaming of field of liquid crystal, and the fender web-like is wound on the runner 13, rotarily drives fender rotation and supply by runner 13.Certainly also not as limit.A plurality of stubs 16 are fixed on the rotating mechanism 30 in parallel to each other, for example in the present embodiment, are provided with three stubs 16 as example on the conveying belt of rotating mechanism 30.Wherein in rotating mechanism 30 motion processes, at least one stub 16 and metal guide rail 17,17 ' overlap joint and by metal guide rail 17,17 ' and the galvanometer 18 formation closed-loop path 19 that joins, wherein two strip metal guide rails 17,17 ' be arranged in parallel, stub 16 is connected across on the two strip metal guide rails 17,17 ', and stub 16 moves towards first direction R1 or the second direction R2 opposite with first direction R1 along metal guide rail 17,17 ', and galvanometer 18 is in order to detect the electric current in the closed-loop path 19.The plane that magnetic field B forms perpendicular to closed-loop path 19.Rotating mechanism 30 is in transmission connection with runner 13, that is runner 13 rotates towards third direction R3, and rotating mechanism 30 drives stubs 16 and moves towards first direction R1 along metal guide rail 17,17 ' simultaneously; Perhaps runner 13 rotates to R4 towards the four directions opposite with third direction R3, and rotating mechanism 30 drive stubs 16 move towards second direction R2 along metal guide rail 17,17 ' simultaneously.Wherein, third direction R3 for example is clockwise direction, and corresponding four directions is counterclockwise to R4.
In the present embodiment, rotating mechanism 30 comprises the first rotating shaft 11 and the second rotating shaft 12, the first conveying belt 14 and the second conveying belt 15 that be arranged in parallel.The first conveying belt 14 connects the first rotating shaft 11 and the second rotating shaft 12, first conveying belt 14 that rotarily drives by the first rotating shaft 11 and the second rotating shaft 12 moves, these stubs 16 are fixed on the first conveying belt 14, and with metal guide rail 17,17 ' and galvanometer 18 stub 16 that forms closed-loop paths 19 by the movement of the first conveying belt 14 along metal guide rail 17,17 ' mobile.Runner 13 then is in transmission connection by the second conveying belt 15 and the first rotating shaft 11, i.e. the first rotating shaft 11 of rotating mechanism 30 and the second rotating shaft 12 clockwise rotates, and runner 13 also clockwise rotates; The first rotating shaft 11 and second rotating shaft 12 of rotating mechanism rotate counterclockwise, and runner 13 also rotates counterclockwise.
See also Fig. 4 A and 4B.According to the law of electromagnetic induction, produce faradic condition and be: change as long as pass the magnetic flux of closed circuit, will produce induction current in the closed circuit.Thereby stub 16 of the present invention can produce induction current along cutting magnetic field B motion in metal guide rail 17,17 ' the mobile process in the closed-loop path 19, and to be perpendicular to closed-loop path 19 downward for the magnetic induction line direction of magnetic field B in the present embodiment.If third direction R3 is clockwise direction, the four directions is counterclockwise to R4, runner 13 is the clockwise direction rotation towards third direction R3, rotating mechanism 30 drives stub 16 towards moving towards first direction R1 along metal guide rail 17,17 ' simultaneously, namely such as the direction to the right of the level among Fig. 2, the magnetic flux in the closed-loop path 19 increases at this moment.Decision method according to inductive current direction: (1) right-hand rule and (2) Lenz law (when the magnetic flux in former magnetic field increases, faradic magnetic field and former FR; Faradic magnetic field is identical with magnetic field when the magnetic flux in former magnetic field reduces), can draw: electric current I 1 direction in the closed-loop path 19 is shown in Fig. 4 A.If the electric current that galvanometer showed when magnetic flux increased is being for just, the electric current I 1 that galvanometer 18 recorded when then stub 16 moved towards first direction R1 is for just.Understandable, if conversely, the runner 13 i.e. counterclockwise rotations towards the four directions to R4, rotating mechanism 30 drives stub 16 towards moving towards second direction R2 along metal guide rail 17,17 ' simultaneously, namely such as the direction left of the level among Fig. 2, the magnetic flux in the closed-loop path 19 reduces at this moment, and electric current I 2 directions in the closed-loop path 19 are shown in Fig. 4 B, with electric current I 1 opposite direction among Fig. 4 A, the electric current I 2 that this moment, galvanometer 18 recorded is for negative.Therefore can draw, if the electric current that galvanometer 18 shows illustrates that for just runner 13 rotates towards third direction R3; If the electric current that galvanometer 18 shows, then illustrates runner 13 for negative and rotates to R4 towards the four directions.
In another embodiment, rotation detecting device 10 also comprises treating apparatus and alarm, and treating apparatus and galvanometer 18 are electrically connected, and alarm and treating apparatus are electrically connected.For example, when in the measured electric current of galvanometer 18 and the treating apparatus during predetermined current opposite direction, alarm can send warning, informs that runner 13 rotations break down, and should in time process.In addition, owing to be fixed with a plurality of stubs 16 on the first conveying belt 14 of rotating mechanism 30, and satisfy in rotating mechanism 30 motion processes, at least one stub 16 and metal guide rail 17,17 ' overlap joint also passes through metal guide rail 17,17 ' joins with galvanometer 18 forms closed-loop path 19, thereby so that stub 16 along metal guide rail 17, the athletic meeting of 17 ' cutting magnetic field B circulates down always, for example, in the present embodiment, as shown in Figure 3, runner is in the right handed process towards third direction R3, with metal guide rail 17,17 ' the stub that joins 16 under the drive of rotating mechanism 30 along metal guide rail 17,17 ' moves towards first direction R1, break away from metal guide rail 17 at last stub 16, in the time of 17 ', have 16 accesses of another stub and along metal guide rail 17,17 ' motion.But, stub 16 rigidly connect into or break away from metal guide rail 17,17 ' time, may the generation current spike, the situation that galvanometer 18 records the moment inverse current appears, but we can overcome this kind situation by the restriction of time, for example can set by treating apparatus as above: be no more than 0.5 second when the inverse current duration that records, then being considered as runner 13 is the clockwise direction rotation towards third direction R3 still.
See also Fig. 5, Figure 5 shows that the front view of rotation detecting device second embodiment of the invention.Rotation detecting device 20 in the present embodiment is similar to the rotation detecting device 10 in the first embodiment, difference is that the concrete structure of rotating mechanism 40 in the present embodiment is different, and rotating mechanism 40 comprises the first pair roller 21, the 22 and second pair roller 31, the 32, first conveying belt 24, the second conveying belt 25 and the 3rd conveying belt 34 that be arranged in parallel.The first conveying belt 24 connects the first pair roller 21,22; The 3rd conveying belt 34 connects the second pair roller 31,32, and the first conveying belt 24 is parallel with the 3rd conveying belt 34, stub 16 is striden and is established and be fixed on the first conveying belt 24 and the 3rd conveying belt 34, and by the moving belt moving-conductor rod 16 of the first conveying belt 24 and the 3rd conveying belt 34 along metal guide rail 17,17 ' mobile.Runner 23 is connected with arbitrary roller in the first pair roller 21,22 by the second conveying belt 25, is to be connected to example with runner 23 and roller 21 by the second conveying belt 25 in the present embodiment.Namely the first pair roller 21,22 clockwise rotates, and runner 23 also clockwise rotates; The first pair roller 21,22 rotates counterclockwise, and runner 23 also rotates counterclockwise.Wherein to convert stub 16 to similar to the first embodiment along metal guide rail 17,17 ' mobile mode in the rotation of runner 23, so be not described in detail in this.
See also Fig. 6, Figure 6 shows that the schematic flow sheet according to rotation detection method of the present invention.The present invention also provides a kind of one-directional rotation detection method, rotates detection method and comprises the steps.
At first, such as step S1, provide aforesaid rotation detecting device 10.
Then, such as step S2, runner 13 rotates towards third direction R3, and rotating mechanism 30 drive stubs 16 move towards first direction R1 along metal guide rail 17,17 ' simultaneously; Perhaps runner 13 rotates towards the four directions to R4, and rotating mechanism 30 drives stubs 16 and moves towards second direction R2 along metal guide rail 17,17 ' simultaneously.
Simultaneously, such as step S3, stub 16 cutting magnetic field B motion produces induction current; And
At last, such as step S4, the electric current that records according to galvanometer 18 is judged the rotation direction of runner 13.Take third direction R3 as example as clockwise direction, runner 13 is the clockwise direction rotation towards third direction R3, rotating mechanism 30 drives stub 16 towards moving towards first direction R1 along metal guide rail 17,17 ' simultaneously, namely such as the direction to the right of the level among Fig. 2, the magnetic flux in the closed-loop path 19 increases at this moment.Decision method according to inductive current direction can draw: electric current I 1 direction such as Fig. 4 A in the closed-loop path 19 are depicted as clockwise direction.If the electric current that galvanometer showed when magnetic flux increased is being for just, the electric current I 1 that galvanometer 18 recorded when then stub 16 moved towards first direction R1 is for just.Understandable, if conversely, the runner 13 i.e. counterclockwise rotations towards the four directions to R4, rotating mechanism 30 drives stub 16 towards moving towards second direction R2 along metal guide rail 17,17 ' simultaneously, namely such as the direction left of the level among Fig. 2, the magnetic flux in the closed-loop path 19 reduces at this moment, and electric current I 2 directions in the closed-loop path such as Fig. 4 B are depicted as counterclockwise, with electric current I 1 opposite direction among Fig. 4 A, the electric current I 2 of galvanometer 18 demonstrations this moment is for negative.Therefore can draw, if the electric current that galvanometer 18 records illustrates that for just runner 13 rotates towards third direction R3; If the electric current that galvanometer 18 records, then illustrates runner 13 for negative and rotates to R4 towards the four directions.Same, rigidly connect into or break away from metal guide rail 17, moment of 17 ' at stub 16, may the generation current spike, the situation that galvanometer 18 records the moment inverse current appears, but we can overcome this kind situation by the restriction of time, for example can set by treating apparatus: the time that continues when the inverse current that records is no more than 0.5 second, then is considered as runner 13 and still rotates towards third direction.
In addition, rotate detection method and comprise that also treating apparatus receives and process the current information of galvanometer 18, wherein treating apparatus and galvanometer 18 are electrically connected.And when in the measured electric current of galvanometer 18 and the treating apparatus during predetermined current opposite direction, treating apparatus can send signal to alarm, and alarm equipment alarm informs that runner 13 rotations break down, and should in time process.
In sum, the advantage of rotation detecting device of the present invention and method is to judge orderly motion.Rotation detecting device of the present invention converts the motion of stub to by the rotation with runner, the stub cutting magnetic field moves so that the magnetic flux in the closed-loop path changes, thereby generation current, and the increase of magnetic flux or the trend that diminishes, the direction of current that produces is different, by the detection of electric current being judged the rotation direction of runner.
By the detailed description of above embodiment, be to wish more to know to describe feature of the present invention and spirit, and be not to come claim scope of the present invention is limited with above-mentioned disclosed embodiment.On the contrary, its objective is that hope can contain in being arranged in of various changes and the tool equality claim scope of the present invention.Therefore, claim scope of the present invention should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (10)
1. a unidirectional rotation detecting device is characterized in that this rotation detecting device comprises
Runner;
Rotating mechanism is in transmission connection with this runner;
A plurality of stubs, these a plurality of stubs are fixed on this rotating mechanism in parallel to each other, and in this rotating mechanism motion process, at least one this stub and metal guide rail overlap joint and by this metal guide rail and the galvanometer formation closed-loop path that joins, this galvanometer is in order to detect the electric current in this closed-loop path; And
Magnetic field is perpendicular to the plane of this closed-loop path formation;
Wherein, this runner rotates towards third direction, this rotating mechanism drives this stub and moves towards first direction along this metal guide rail simultaneously, perhaps this runner is towards the four directions opposite with this third direction to rotation, and this rotating mechanism drives this stub and moves along this metal guide rail towards second direction opposite with this first direction simultaneously.
2. rotation detecting device as claimed in claim 1 is characterized in that this rotating mechanism comprises
The first rotating shaft that be arranged in parallel and the second rotating shaft;
The first conveying belt, connect this first rotating shaft and this second rotating shaft, this first conveying belt that rotarily drives by this first rotating shaft and the second rotating shaft moves, and this stub is fixed on this first conveying belt and move along this metal guide rail by mobile this stub that drives of this first conveying belt; And
The second conveying belt, this runner is connected with this first rotating shaft by this second conveying belt.
3. rotation detecting device as claimed in claim 1 is characterized in that this rotating mechanism comprises the first pair roller and the second pair roller that be arranged in parallel;
The first conveying belt connects this first pair roller;
The 3rd conveying belt, connect this second pair roller, and this first conveying belt is parallel with the 3rd conveying belt, and this stub is striden to establish and be fixed on this first conveying belt and the 3rd conveying belt and drive this stub by moving of this first conveying belt and the 3rd conveying belt and moved along this metal guide rail; And
The second conveying belt, this runner is connected with arbitrary roller in this first pair roller by this second conveying belt.
4. rotation detecting device as claimed in claim 1 is characterized in that this runner in order to supply weblike material, and this weblike material is padded coaming.
5. rotation detecting device as claimed in claim 1 is characterized in that this third direction is clockwise direction, and this four directions is to being counter clockwise direction.
6. rotation detecting device as claimed in claim 1 is characterized in that this rotation detecting device also comprises treating apparatus, is electrically connected with this galvanometer.
7. rotation detecting device as claimed in claim 6 is characterized in that this rotation detecting device also comprises alarm, is electrically connected with this treating apparatus.
8. an one-directional rotation detection method is characterized in that this rotation detection method comprises
Provide such as the described rotation detecting device of claim 1-5 any one;
This runner rotates towards this third direction, this rotating mechanism drives this stub and moves towards this first direction along this metal guide rail simultaneously, perhaps this runner is towards this four directions to rotation, and this rotating mechanism drives this stub and moves towards this second direction along this metal guide rail simultaneously;
This stub cuts this Movement in Magnetic Field generation current; And
This electric current that records according to this galvanometer is judged the rotation direction of this runner.
9. rotation detection method as claimed in claim 8 is characterized in that this rotation detecting device also comprises treating apparatus, is electrically connected with this galvanometer, and this treating apparatus receives and process this galvanometric current information.
10. rotation detection method as claimed in claim 9 is characterized in that this rotation detecting device also comprises alarm, is electrically connected with this treating apparatus; When in the measured electric current of galvanometer and the treating apparatus during predetermined current opposite direction, treating apparatus can send signal to alarm, alarm equipment alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010104754 CN101788568B (en) | 2010-01-18 | 2010-01-18 | Unidirectional rotation detecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010104754 CN101788568B (en) | 2010-01-18 | 2010-01-18 | Unidirectional rotation detecting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101788568A CN101788568A (en) | 2010-07-28 |
| CN101788568B true CN101788568B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010104754 Expired - Fee Related CN101788568B (en) | 2010-01-18 | 2010-01-18 | Unidirectional rotation detecting device and method |
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| Country | Link |
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| CN (1) | CN101788568B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415082B (en) * | 2018-01-23 | 2020-05-05 | 武汉华星光电半导体显示技术有限公司 | Sensor with a sensor element |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4953402A (en) * | 1988-08-16 | 1990-09-04 | Tk "Orgtechnika" | Wind measuring system (anemorhumbometer) |
| CN101145294A (en) * | 2007-11-08 | 2008-03-19 | 沈昌生 | Modified magnetoelectricity technology demo design |
-
2010
- 2010-01-18 CN CN 201010104754 patent/CN101788568B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4953402A (en) * | 1988-08-16 | 1990-09-04 | Tk "Orgtechnika" | Wind measuring system (anemorhumbometer) |
| CN101145294A (en) * | 2007-11-08 | 2008-03-19 | 沈昌生 | Modified magnetoelectricity technology demo design |
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| Publication number | Publication date |
|---|---|
| CN101788568A (en) | 2010-07-28 |
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Granted publication date: 20130403 Termination date: 20210118 |