CN203070044U - All fiber sensing probe winding device - Google Patents
All fiber sensing probe winding device Download PDFInfo
- Publication number
- CN203070044U CN203070044U CN 201220710809 CN201220710809U CN203070044U CN 203070044 U CN203070044 U CN 203070044U CN 201220710809 CN201220710809 CN 201220710809 CN 201220710809 U CN201220710809 U CN 201220710809U CN 203070044 U CN203070044 U CN 203070044U
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- coiling
- optical fiber
- wheel
- tension
- winding displacement
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Abstract
The utility model discloses an all fiber sensing probe winding device which comprises a tension control system, a glue coating control system, a fiber state adjustment system and a flat cable winding system. The tension control system comprises a preparation ring bracket (1), a tension control motor (2), a fiber guide wheel (3), a dance wheel (4), a tension sensor (5), a first adjustment wheel (6), a second adjustment wheel (7) and a guide pulley (8), wherein the preparation ring bracket (1), the tension control motor (2), the fiber guide wheel (3), the dance wheel (4), the tension sensor (5), the first adjustment wheel (6), the second adjustment wheel (7) and the guide pulley (8) are arranged on a support block (37). The fiber sensing probe winding device has the advantages of constant winding tension, precise flat cable, simple operation, high production consistency, high reliability and the like when used for fiber winding.
Description
Technical field
The utility model relates to a kind of full optical fiber sensing probe coiling device, is particularly useful for the probe coiling of fibre optic hydrophone product.
Background technology
At present, for full Fibre Optical Sensor product, people wait to obtain higher detection accuracy by adjusting sonde configuration parameter, fiber lengths and enhanced sensitivity material, and pay attention to inadequately by the mode of improving the optical fiber sensing probe coiling device.The coiling of internal optical fiber probe at present is to adopt manual coiling device basically, and manually in the winding process optical fiber tension force be subjected to external disturbance that violent sudden change takes place easily, the speed of coiling simultaneously is not steady, it is low excessively to arrange fine precision, often occur optical fiber beat turn round, phenomenon of rupture.And the optical fiber sensing probe detection accuracy is very responsive to state, the degree of tightness of winding optical fiber.The optical fiber coiling evenly, constant tension, can improve precision and the reliability of optical fiber sensing probe.
In addition, the bottleneck of optical fiber sensing probe through engineering approaches not only is the control of coiling tension force and the coiling speed of fibre-optical probe, but also is the optical fiber state control in the optical fiber winding process.The optical fiber sensing probe coiling must be controlled in advance through optical fiber tension force, light condition control and optical fiber are arranged fine three steps of coiling and carried out.And, closely cement on the enhanced sensitivity material in order to make optical fiber, also optical cement evenly must be coated on the optical fiber.Therefore, the state of the optical fiber coiling of optical fiber sensing probe is constant also becomes necessarily requiring of optical fiber sensing probe through engineering approaches.
In sum, designing the coiling that a kind of optical fiber sensing probe coiling device device carries out optical fiber sensing probe is important link in the Fibre Optical Sensor through engineering approaches process.Its purpose is can be rapidly, the coiling of carrying out optical fiber sensing probe of a large amount of and high-quality.
The utility model content
Technical problem to be solved in the utility model provides a kind of full optical fiber sensing probe coiling device, and this full optical fiber sensing probe coiling device can be realized the optical fiber constant tension.
The technical solution of utility model is as follows:
A kind of full optical fiber sensing probe coiling device comprises tension control system and winding displacement coiling system;
Described tension control system comprises the preparation ring support (1), the tension control motor (2) that are arranged on the piece (37), leads tow wheel (3), dancing wheel (4), tension pick-up (5), first are adjusted wheel (6), second and adjusted wheel (7) and guide pulley (8);
Tension control motor (2) drives preparation ring support (1) rotation, and optical fiber is adjusted wheel (6), the second adjustment wheel (7) and guide pulley (8) through dancing wheel (4), first and derived and be sent to coiling in the winding displacement coiling system from preparation ring support (1) derivation;
The input end of tension pick-up (5) is provided with first gangbar (38), and dancing wheel (4) is arranged on first gangbar (38);
Described tension control system also comprises microprocessor, the first adjustment wheel drive motor and the second adjustment wheel drive motor; First output shaft of adjusting wheel drive motor and the second adjustment wheel drive motor is connected with second gangbar (3g) and the 3rd gangbar (40) respectively; The described first adjustment wheel (6) and second is adjusted wheel (7) and is separately positioned on second gangbar (39) and the 3rd gangbar (3);
The output terminal of tension pick-up (5) links to each other with microprocessor; Tension control motor (2), first adjusts the wheel drive motor and the second adjustment wheel drive motor all is controlled by described microprocessor; Microprocessor adjusts the wheel drive motor according to the real-time tension value control first of tension pick-up (5) output and the second adjustment wheel drive motor is adjusted the position formation closed-loop control of wheel (7) so that the tension force maintenance is constant to change the first adjustment wheel (6) and second respectively.If [overtension, it is close then to make the adjustment wheel and second of winning adjust the wheel relative direction, to reduce tension force, otherwise, if tension force is too small, then making wins adjust wheel and second adjust take turns towards reverse direction away from, to increase tension force, make that finally tension force is in mobile equilibrium, concrete control method is prior art, as adopts typical PID controller realization etc.】
Winding displacement coiling system comprises winding displacement base plate platform (28), coiling platform (22), coiling electric motor (24), main shaft (25), translation motor (18) and work ring stand (23);
Be provided with screw body (26) in winding displacement base plate platform (28), coiling platform (22) is arranged on the guide rail (27) on the winding displacement base plate platform (28); Translation motor (18) drives described screw body (26) and then drives coiling platform (22) and slides along guide rail (27);
Coiling electric motor (24) and main shaft (25) all are arranged on the coiling platform (22); Work ring stand (23) is sleeved on the main shaft (25); Coiling electric motor (24) drive shaft (25) rotation, work ring stand (23) is with main shaft (25) rotation synchronously;
Coiling electric motor (24) and translation motor (18) all are controlled by microprocessor.
Between tension control system and winding displacement coiling system, be provided with the glue coating control system;
The glue coating control system comprises nozzle (20), glue retracting device (19) and is used for controlling according to optical fiber coiling velocity amplitude the flow control circuit of the glue flow of nozzle ejection that flow control circuit is connected [being existing mature technology by optical fiber coiling velocity amplitude control flow] with microprocessor.
Between tension control system and winding displacement coiling system, be provided with optical fiber state Adjustment System;
Described optical fiber state Adjustment System comprises rotating disc (9), whirligig support (10), turning axle (11), electric rotating machine (12), observation platform (41), winding displacement post (13), CCD camera (15), watch window (16), light source (17) and state adjustment controller;
Electric rotating machine (12), turning axle (11) and rotating disc (9) all are arranged on the whirligig support 10, and electric rotating machine (12) is by gear drive turning axle (11), and turning axle (11) links to each other with rotating disc (9) by connector;
Watch window (16) and 2 winding displacement posts (13) all are located on the crossbeam of observation platform (41), and watch window (16) is positioned between 2 winding displacement posts (13); Optical fiber is through watch window (16) and 2 winding displacement posts (13), and light source (17) and CCD camera (15) are separately positioned on below and the top of watch window (16);
CCD camera (15) output image information is adjusted controller to state, and state adjustment controller sends control signal and makes optical fiber rotate to drive rotating disc (9) for electric rotating machine (12), realizes that optic fibre turning compensates.
Full optical fiber sensing probe winding method is: by the described constant tension that keeps when making that tension control system makes the optical fiber coiling; Realize the optic fibre turning compensation by described optical fiber state Adjustment System, realize the optical fiber coiling by winding displacement coiling system.
Keep the method for constant tension to be, if overtension, it is close then to make the adjustment wheel and second of winning adjust the wheel relative direction, reducing tension force, otherwise, if tension force is too small, then making wins adjust wheel and second adjust the wheel reverse direction away from, to increase tension force, make that finally the tension force maintenance is constant.
CCD camera (15) is by the light distribution value of the optical fiber that monitors, namely can determine (33) two angles that become line to become with horizontal line of a pair of opal in the optical fiber, this angle is rotation angle, state is adjusted controller and is driven the electric rotating machine action, the rotation synchronously of electric rotating machine driven rotary axle, rotating disc and a piece (37), the rotation of drive optical fiber makes optical fiber reverse the variable quantity of compensation rotation angle (35) in the other direction, realizes that namely the optical fiber state keeps constant.
Beneficial effect:
Full optical fiber sensing probe coiling device of the present utility model, its characteristics are, between the extremely accurate winding displacement coiling of tension control system system optical fiber state Adjustment System and optical fiber glue coating control system are set.By preset values such as computer terminal man-machine interface input target coiling length, optical fiber tension force, coiling speed, winding displacement intervals, optical fiber exports to the optical fiber tension control system from the preparation ring support, behind the default tension force of computer, producing control signal is sent on the tension control circuit, tension control motor responds fast to be adjusted signal and makes optical fiber put fine tension force to keep constant, and the optical fiber of constant-tension is derived from guide pulley.Fibre movement state between the extremely accurate winding displacement coiling of the tension control system system utilizes the ccd video camera monitoring, the light distribution value that computer acquisition optical fiber rotates a circle is carried out the image processing, realizes that by handling and control the software-driven whirligig optical fiber winding optical fiber state keeps not deflection.Accurate winding displacement coiling system controls according to the coiling parameter that arranges, and utilizes the platform of translation motor adjustment placement work ring stand, makes the edge of the optical fiber that comes out from tension control system and work ring stand just in time in same upright position.And by the picture control of video camera with optical fiber arrangement, speed and the translation motor of regulating coiling electric motor move stepping, make optical fiber arrangement even.Optical fiber is by optical fiber glue coating control system, and optical fiber surface applies the even glue of one deck automatically.This optical fiber sensing probe coiling device coiling is except coiling constant tension and accurate winding displacement, and is simple to operate in addition, conformity of production height, reliability advantages of higher.
Advantage of the present utility model:
Optical fiber exports to the optical fiber tension control system from the preparation ring support, behind the default tension force of microprocessor (or computer), produces control signal and is sent on the feedback control circuit, and tension control motor responds fast to be adjusted signal and make optical fiber put fine tension force to keep constant.
The fibre movement state utilizes the ccd video camera monitoring, and the light distribution value that computer acquisition optical fiber rotates a circle is carried out the image processing, realizes that by handling and control the software-driven whirligig optical fiber winding optical fiber state keeps not deflection.
Accurate winding displacement coiling system controls according to the coiling parameter that arranges, and utilizes the coiling platform of translation motor adjustment placement work ring stand, makes the edge of the optical fiber that comes out from tension control system and work ring stand just in time in same upright position.And by the picture control of video camera with optical fiber arrangement, speed and the translation motor of regulating coiling electric motor move stepping, make optical fiber arrangement even.
Description of drawings
Fig. 1 is the general structure synoptic diagram of full optical fiber sensing probe coiling device;
Fig. 2 adjusts structural representation for the optical fiber state;
Label declaration: 1 preparation ring support, 2 tension control motors, 3 lead tow wheel, 4 dancings wheel, 5 tension pick-ups, 6 first adjust wheel, 7 second adjust wheel, 8 guide pulley, 9 rotating discs, 10 whirligig supports, 11 turning axles, 12 electric rotating machines, 13 winding displacement posts, 14 watch window adjusting gears, the 15CCD camera, 16 watch windows, 17 light sources, 18 translation motor, 19 glue retracting devices, 20 high pressure nozzle devices, 21 rig cameras, 22 coiling platforms, 23 work ring stands, 24 coiling electric motors, 25 main shafts, 26 screw bodies, 27 guide rails, 28 winding displacement base plate platforms, 29 light distribution values, 31 lens, 32 inspection surfaces, 33 opals, 34 fibre cores, 35 rotation angle, 37-props up piece, 38-first gangbar, 39-second gangbar, 40-the 3rd gangbar, the 41-observation platform.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
Be the structural representation of full optical fiber sensing probe coiling device as Fig. 1.In the diagram instantiation, full optical fiber sensing probe coiling device structure comprises parts such as tension control system, accurate winding displacement coiling system, optical fiber state Adjustment System and optical fiber glue coating control system.Concrete function is described below:
(1), tension control system
Tension control system comprises tension pick-up 2 and amplifying circuit, tension control motor 2, dancing wheel 4, preparation ring support 1, guide pulley 5, adjust wheel 6 and adjust wheel 7, A D sampling and feedback control circuit part.In fine process, optical fiber is derived from the preparation ring support, and through dancing wheel, tension pick-up, adjustment wheel, guide pulley 8, last optical fiber is derived from guide pulley.
When the tension value on the optical fiber is constant, dancing wheel mainly be subjected to itself gravity, with the acting in conjunction of the tension force of self on the pulling force of the pulling force of the identical spindle motor of fine direction, the tension control motor identical or opposite with the optical fiber direction and optical fiber, and remain invariant position.When if the tension value on the optical fiber changes, optical fiber can make the position of dancing wheel change, the dancing wheel rotates by the axle that support bar drives tension pick-up, the tension value of tension pick-up is changed, feedback control circuit detects the tension variation of tension pick-up, the tension variation amount is converted to voltage change, be converted into digital signal by the AD sample circuit, be sent to feedback control circuit and handle by PID, the control signal that produces after PID handles is defeated by the adjustment wheel 6 that rotates adjusting position and is adjusted wheel 7, changes the position of adjusting wheel, make the dancing wheel turn back to the original position, recover optical fiber constant tension value.
(2), accurate winding displacement coiling system
Precision winding displacement coiling system comprises winding displacement base plate platform 28, coiling platform 22, coiling electric motor 24, translation motor 18, work ring stand 23, video camera 21 and coiling control circuit system.In winding displacement base plate platform, be provided with screw body 26, the both sides of screw body are provided with guide rail 27, and an end of screw mandrel links to each other with translation motor by shaft coupling, and the coiling platform links to each other with guide rail, screw mandrel, be provided with coiling electric motor at the coiling platform, coiling electric motor is connected with work ring stand 23 by main shaft 25.
During work, will be placed in the work ring stand around fibre probe [being optical fiber], coiling electric motor drives main shaft and the work ring stand rotates synchronously.Translation motor drives the silk pavilion according to shift value and rotates, make the coiling platform evenly mobile to the both sides of optical fiber with respect to the optical fiber direction on guide rail, and by camera supervised optical fiber arrangement position, produce control signal by host computer then, coiling speed and the translation motor of regulating coiling electric motor move stepping, make optical fiber arrangement even.Utilize the position of translation motor adjusting coiling platform, make to remain on same upright position from the edge of the guide pulley of the tension control system optical fiber of deriving and the ring stand of working.
Set after the ring parameter at the alternating interface between man and computer of computer, start total system, coiling electric motor begins to rotate, that will repeat from the optical fiber of guide pulley output is wound on the probe, translation motor drives the coiling platform simultaneously and moves, and mobile speed and distance are all according to controlling around the ring parameter of arranging.When the probe coiling was set the number of turns to maximum, the translation motor moving direction changed motion, and the arragement direction of the optical fiber on the building ring changes accordingly, begins the coiling of another layer.
(3), optical fiber state Adjustment System
Optical fiber state Adjustment System comprises light source 17, whirligig, CCD camera 15, state adjustment controller.As shown in Figure 1, be provided with electric rotating machine 12, turning axle 11 and rotating disc 9 at whirligig support 10, electric rotating machine links to each other with turning axle by gear, and an end of turning axle links to each other with rotating disc by connector.
As shown in Figure 1, 2, light source sends directional light and shines to optical fiber side, and makes light transmission optical fiber amplification imaging on the CCD camera.Because the difference of polarization maintaining optical fibre inner refractive index, the light that sees through fibre core and covering can present the different light distribution of light and shade, gather the light distribution value that optical fiber rotates a circle by image pick-up card, adjust controller by state the light distribution value is converted to control signal, driving electric rotating machine driven rotary axle and rotating disc rotates synchronously, the compensation of realization optic fibre turning guarantees that optical fiber is constant in axial angle position.
In the fibre optic hydrophone probe winding process, polarization maintaining optical fibre can reverse usually, makes that bigger variation takes place the propagation constant in the optical fiber.Therefore need compensate optic fibre turning, suppress reversing of optical fiber.The situation of reversing in the coiling of CCD camera picked-up optical fiber, picture signal is delivered to state adjust controller, adjust controller by state and handle calculating just in the optic fibre turning angle of coiling and the deviation between the preset angles, produce control signal, drive the whirligig spin fiber, make optical fiber recover correct angle position.
Rotating disc 9 links to each other with a piece 37 by connector, CCD camera 15 is by the light distribution value of the optical fiber that monitors, namely can determine 33 two angles (being rotation angle 35) that become line to become with horizontal line of a pair of opal in the optical fiber, state is adjusted controller (being integrated with microprocessing unit) according to the state of CCD camera 15 monitoring, to adjust signal and flow to electric rotating machine, electric rotating machine driven rotary axle, rotating disc and a piece 37 rotate synchronously, (in fact the optical fiber anglec of rotation is less to drive the optical fiber rotation, generally in 10 degree), make optic fibre turning compensate the variable quantity of rotation angle 35, realize that namely the optical fiber state keeps constant, i.e. the fiber position zero deflection.
(4), optical fiber glue coating control system
Optical fiber glue coating control system comprises nozzle 20, glue retracting device 1g, flow control circuit.Adopt three high-pressure mini nozzles be evenly arranged in optical fiber around, the atomize that utilizes high pressure glue to produce makes glue evenly be attached to optical fiber surface, is sent to flow control circuit by the default coiling velocity amplitude of computer, the spraying flow of control nozzle.The glue of overspray flows in the glue collecting box, by glue pump glue is transported in the glue case and reuses.Realize that glue sprays automatically, glue evenly is coated on the optical fiber surface, take full advantage of glue.
The utility model adopts optical fiber glue coating control system, can realize that multiple glue sprays automatically according to different coiling speed, and glue is applied evenly.
The utility model is imported target component by man-machine interface, can finish fixed length coiling and automatic stopping under no artificial participation situation, can realize the robotization of optical fiber sensing probe coiling.But be somebody's turn to do around loop device coiling Φ 0.1～Φ 0.3mm optical fiber, but the winding displacement distance is 0.1～100mm that controlled pulling force is 0～1N, threading speed is 0.1m/s～1m/s.Can realize finishing synchronously around fine and gluing, and realize that accurate winding displacement, stress distribution are more even, soon speed winding.
Claims (4)
1. a full optical fiber sensing probe coiling device is characterized in that, comprises tension control system and winding displacement coiling system;
Described tension control system comprises the preparation ring support (1), the tension control motor (2) that are arranged on the piece (37), leads tow wheel (3), dancing wheel (4), tension pick-up (5), first are adjusted wheel (6), second and adjusted wheel (7) and guide pulley (8);
Tension control motor (2) drives preparation ring support (1) rotation, and optical fiber is adjusted wheel (6), the second adjustment wheel (7) and guide pulley (8) through dancing wheel (4), first and derived and be sent to coiling in the winding displacement coiling system from preparation ring support (1) derivation;
The input end of tension pick-up (5) is provided with first gangbar (38), and dancing wheel (4) is arranged on first gangbar (38);
Described tension control system also comprises microprocessor, the first adjustment wheel drive motor and the second adjustment wheel drive motor; First output shaft of adjusting wheel drive motor and the second adjustment wheel drive motor is connected with second gangbar (39) and the 3rd gangbar (40) respectively; The described first adjustment wheel (6) and second is adjusted wheel (7) and is separately positioned on second gangbar (39) and the 3rd gangbar (3);
The output terminal of tension pick-up (5) links to each other with microprocessor; Tension control motor (2), first adjusts the wheel drive motor and the second adjustment wheel drive motor all is controlled by described microprocessor; Microprocessor adjusts the wheel drive motor according to the real-time tension value control first of tension pick-up (5) output and the second adjustment wheel drive motor is adjusted the position formation closed-loop control of wheel (7) so that the tension force maintenance is constant to change the first adjustment wheel (6) and second respectively.
2. full optical fiber sensing probe coiling device according to claim 1, it is characterized in that winding displacement coiling system comprises winding displacement base plate platform (28), coiling platform (22), coiling electric motor (24), main shaft (25), translation motor (18) and work ring stand (23);
Be provided with screw body (26) in winding displacement base plate platform (28), coiling platform (22) is arranged on the guide rail (27) on the winding displacement base plate platform (28); Translation motor (18) drives described screw body (26) and then drives coiling platform (22) and slides along guide rail (27);
Coiling electric motor (24) and main shaft (25) all are arranged on the coiling platform (22); Work ring stand (23) is sleeved on the main shaft (25); Coiling electric motor (24) drive shaft (25) rotation, work ring stand (23) is with main shaft (25) rotation synchronously;
Coiling electric motor (24) and translation motor (18) all are controlled by microprocessor.
3. full optical fiber sensing probe coiling device according to claim 1 is characterized in that, is provided with the glue coating control system between tension control system and winding displacement coiling system;
The glue coating control system comprises nozzle (20), glue retracting device (19) and is used for controlling according to optical fiber coiling velocity amplitude the flow control circuit of the glue flow of nozzle ejection that flow control circuit is connected with microprocessor.
4. according to each described full optical fiber sensing probe coiling device of claim 1-3, it is characterized in that, between tension control system and winding displacement coiling system, be provided with optical fiber state Adjustment System;
Described optical fiber state Adjustment System comprises rotating disc (9), whirligig support (10), turning axle (11), electric rotating machine (12), observation platform (41), winding displacement post (13), CCD camera (15), watch window (16), light source (17) and state adjustment controller;
Electric rotating machine (12), turning axle (11) and rotating disc (9) all are arranged on the whirligig support 10, and electric rotating machine (12) is by gear drive turning axle (11), and turning axle (11) links to each other with rotating disc (9) by connector;
Watch window (16) and 2 winding displacement posts (13) all are located on the crossbeam of observation platform (41), and watch window (16) is positioned between 2 winding displacement posts (13); Optical fiber is through watch window (16) and 2 winding displacement posts (13), and light source (17) and CCD camera (15) are separately positioned on below and the top of watch window (16);
CCD camera (15) output image information is adjusted controller to state, and state adjustment controller sends control signal and makes optical fiber rotate to drive rotating disc (9) for electric rotating machine (12), realizes that optic fibre turning compensates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710809 CN203070044U (en) | 2012-12-20 | 2012-12-20 | All fiber sensing probe winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710809 CN203070044U (en) | 2012-12-20 | 2012-12-20 | All fiber sensing probe winding device |
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| Publication Number | Publication Date |
|---|---|
| CN203070044U true CN203070044U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220710809 Expired - Lifetime CN203070044U (en) | 2012-12-20 | 2012-12-20 | All fiber sensing probe winding device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203070044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076758A (en) * | 2012-12-20 | 2013-05-01 | 长城信息产业股份有限公司 | Full-fiber sensing probe winding device and winding method |
-
2012
- 2012-12-20 CN CN 201220710809 patent/CN203070044U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076758A (en) * | 2012-12-20 | 2013-05-01 | 长城信息产业股份有限公司 | Full-fiber sensing probe winding device and winding method |
| CN103076758B (en) * | 2012-12-20 | 2015-08-26 | 长城信息产业股份有限公司 | All-fiber sensing probe coiling device and winding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN HAIDUN FIBER OPTIC SENSING TECHNOLOGY ENGINE Free format text: FORMER OWNER: GREATWALL INFORMATION INDUSTRY CO., LTD. Effective date: 20130729 Free format text: FORMER OWNER: CHANGSHA XIANGJI HAIDUN TECHNOLOGY CO., LTD. HUNAN HAIDUN FIBER OPTIC SENSING TECHNOLOGY ENGINEERING LABORATORY CO., LTD. Effective date: 20130729 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130729 Address after: 410100 No. three, No. 5 East, Changsha Economic Development Zone, Hunan, China Patentee after: HUNAN HAIDUN OPTICAL FIBER SENSING TECHNOLOGY ENGINEERING LABORATORY Co.,Ltd. Address before: 410100 No. three, No. 5 East, Changsha Economic Development Zone, Hunan, China Patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. Patentee before: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee before: HUNAN HAIDUN OPTICAL FIBER SENSING TECHNOLOGY ENGINEERING LABORATORY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |