CN1939859A - Optical-fibre controlling method and apparatus - Google Patents
Optical-fibre controlling method and apparatus Download PDFInfo
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- CN1939859A CN1939859A CN 200510030101 CN200510030101A CN1939859A CN 1939859 A CN1939859 A CN 1939859A CN 200510030101 CN200510030101 CN 200510030101 CN 200510030101 A CN200510030101 A CN 200510030101A CN 1939859 A CN1939859 A CN 1939859A
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Abstract
A controlling method for treating optical fiber, its controller and structure of valve controlling box are disclosed. The process is carried out by draw forming for optical fiber, putting it into treatment tank, sealing, locking, pumping vacuum by vacuum pump, inducing into nitrogen gas, repeating for several times, setting deuterium and nitrogen flow, inducing into gas by two inlets simultaneously to a proper pressure, mixing for some time, inspecting concentration, trimming, keeping pressure and concentration and discharging. It is cheap, takes up less space, and has less hydrogen loss and better ductility.
Description
Technical field
The present invention relates to a kind of method that optical fiber processing is controlled, the invention still further relates to the control device of this method of enforcement, especially a kind of valve controlling box.
Background technology
Along with optical transfer network to higher rate, more the direction of heavy body, longer distance develops, optical-fibre communications different levels network requires to be not quite similar to optical fiber, requires in chromatic dispersion, chromatic dispersion gradient, non-linear effect etc. as the core net optical fiber property; The optical fibre for metropolitan area network performance is then paid attention to operating wavelength range; What the local area network optical fiber property was emphasized is the bandwidth of operation and the cost that continues.
In the face of the continuous increase of optical-fibre communications to all requirements of optical fiber, optic fibre manufacturing technology, manufacturing process etc. are all in continuous improvement, and the operation wavelength of optical fiber is constantly expansion also, low water peak theory occurred thereupon, and corresponding manufacturing process.
According to the standard of low-water-peak fiber, require to prevent after the optical fiber moulding increase of added losses after the hydrogen loss.Optical fibre high temp mainly exists the hollow defect structure of non-bridging oxygen after drawing moulding, and the hydrogen that atmospheric environment or other materials are separated out diffusion easily penetrates into formation silicon hydroxyl in the optical fiber, and this has just caused the increase of added losses after the hydrogen loss.With deuterium gas optical fiber is handled having occurred in such cases, occupy the hollow defective of non-bridging oxygen in advance and form the Si-O-D structure, simultaneously, according to the chemical reaction theory of heat, it is not enough that hydrogen and Si-O-D are reflected on the energy, therefore thereby just can't form the silicon hydroxyl, cause the increase of added losses after the hydrogen loss.According to this theory, will inevitably propose optical fiber is carried out the equipment that deuterium handles and the support equipment that detects this treatment effect is a hydrogen loss equipment.
Corresponding treatment facility has appearred at present, but technique known just to the optical fiber processing chamber and around control unit provide describing roughly, also specifically do not provide and reach the required control process of various processing environments.In addition, at present known technology adopts deuterium gas and nitrogen fixed concentration mixed air mostly, has brought inconvenience for the change of treatment process, and known device fabrication cost height, production site are big simultaneously.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the control method and the device thereof that the purpose of this invention is to provide a kind of optical fiber processing, corresponding production technique is being provided and is handling under the prerequisite of required industry control condition, provide concrete control method of fibre-optical process equipment and concrete pipe controller thereof, reach the purpose that process reform is convenient, reduce production cost and production site, make the equipment exploitativeness stronger.
A kind of optical fiber processing control method that the present invention provides for solving the problems of the technologies described above comprises the steps: 1) controlled variable of equipment is set; 2) optical fiber that will draw moulding is placed on sealing locking in the treatment tank, starts vacuum pump earlier tank body is vacuumized, and charges into nitrogen then, so determines number of times according to concrete technology, carries out several repeatedly; 3) open nitrogen and deuterium gas control valve door and under meter simultaneously tank body is charged into gas, utilize pressure unit and A/D converter to detect whether gaseous tension reaches setting pressure in the tank body, when reaching certain pressure, stop inflation; 4) allow two kinds of gas mixing certain hours, utilize concentration analyzer detected gas concentration, as required gas concentration is finely tuned; 5) keep tank body sealed environment certain hour, regularly detect the concentration of mixed gas; 6) processing finishes, and discharges mixed gas and takes out the optical fiber that disposes.
The present invention is the purpose that reaches above-mentioned control optical fiber processing control method, solves the control device that technical scheme that its technical problem adopts provides a kind of optical fiber processing, and this device comprises: treatment tank provides optical fiber processing required atmosphere surrounding; Pressure unit is used to detect the intravital gaseous tension of treatment tank; Concentration analyzer is used to detect the volumetric concentration of handling deuterium gas in the tank body; Under meter is used to test the flow of deuterium gas and nitrogen, and controls the conducting of gas circuit; Analog quantity input terminus daughter board is used to provide the port of sampled signal input, is convenient to the integrated of equipment, and signal is carried out modulated filter; The A/D change-over circuit carries out the A/D conversion with the analog signal data that analog quantity input terminus daughter board obtains, and is transformed into numerary signal; Industrial computer is used to carry out parameter setting, data processing and generation control command; D/A converter converts numerary signal to analog control signal, and under meter is carried out the control that flow is adjusted; The digital quantity output board is handled the control signal that industrial computer produces, and produces relay control signal according to control signal; Rly. is used to produce the action of control signal control solenoid control case, control gas circuit conducting or end.
The method of optical fiber processing of the present invention and control and device thereof, replaced the common rare gas element of using in the existing known technology with nitrogen, replace deuterium gas and nitrogen fixed concentration mixed air with pure deuterium gas and the controlled mixed of nitrogen, not only save production cost, and provide accessibility for the improvement of production technique.The beneficial effect of optical fiber processing method of the present invention is the hydrogen loss that has reduced optical fiber; Control device of the present invention adopts modularization, integrated, Structured Design, advantage such as have that extendability is strong, low cost of manufacture, occupation of land are few.And visualize, the instrumentation of realization interface operation.
Description of drawings
Fig. 1 is a schema, and expression realizes the step of optical fiber processing control method of the present invention;
Fig. 2 is a structured flowchart, and expression realizes the apparatus structure of optical fiber processing control method of the present invention;
Fig. 3 is the structure of valve controlling box in the optical fiber processing control device of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
Fig. 1 is the control flow chart of realization optical fiber processing method of the present invention, may further comprise the steps:
Step 1 is provided with the controlled variable of equipment.Step 2 is placed on sealing locking in the treatment tank with the optical fiber that draws moulding, starts vacuum pump earlier tank body is vacuumized, and charges into nitrogen then, so repeatedly more than 3 times, or determines number of times according to concrete technology, carries out for several times repeatedly.Step 3, open nitrogen and deuterium gas control valve door and under meter simultaneously treatment tank is charged into gas, utilize pressure unit and A/D converter to detect and handle whether gaseous tension reaches setting pressure in the tank body, reach certain pressure, for example during 1 normal atmosphere, stop inflation.Step 4 allows two kinds of gas mixing certain hours, utilizes concentration analyzer detected gas concentration, as required gas concentration is finely tuned.Step 5 keeps the tank body sealed environment according to setting-up time, regularly detects the concentration of mixed gas.Step 6, processing finishes, and discharges mixed gas and takes out the optical fiber that disposes.
Fig. 2 is the structure iron of the control device of realization optical fiber processing control method of the present invention, and this device comprises: treatment tank 101 provides optical fiber processing required atmosphere surrounding; Pressure unit 102 is used for detecting a jar intravital gaseous tension; Concentration analyzer 103 is used to detect the volumetric concentration of deuterium gas in the tank body; Under meter 104 is used to test the flow of deuterium gas and nitrogen, and controls the conducting of gas circuit; Analog quantity input terminus daughter board 105 is used to provide the port of sampled signal input, is convenient to the integrated of equipment, and signal is carried out modulated filter; A/D change-over circuit 106, the analog signal data that analog quantity input terminus daughter board 105 is obtained is carried out A/D and is converted numerary signal to; Industrial computer 107 is used to carry out parameter setting, data processing and generation control command; D/A converter 108 converts numerary signal to analog control signal, and under meter is carried out the control that flow is adjusted; Digital quantity output board 109 is handled the control signal that industrial computer produces, and produces relay control signal according to control signal; Relay 110 action, rly. 110 is used to produce 111 actions of control signal control solenoid control case, control gas circuit conducting or end.
Fig. 3 is the structure iron of solenoid control case 111 in the optical fiber processing control device of the present invention.Comprise manual ball valve 1, reducing valve 2, magnetic valve 3, check valve 4, pneumatic diaphragm valve 5, safety valve 6, mass flowmeter (D2) 7, mass flowmeter (H2) 8, fire insulation valve 9, T-valve 10, suspended body flowmeter 11, concentration analyzer 12, needle-valve 13, pressure unit 14 and sound damper 15
Described solenoid control case comprises that execution gas (pressurized air CA gas) inlet, deuterium gas inlet D2, nitrogen inlet N2, exhaust line export, vacuumize emptying outlet, concentration analysis pneumatic outlet, (it is high-order that Span in is used for demarcation for the marked gas inlet, Zero in is used to demarcate low level), expansion mouthful, with the interface of tank body (wherein two is tank body deuterium gas and nitrogen inflation inlet, one be that tank body vacuumizes, concentration analysis and the public outlet of exhaust); Equipment has been installed all gases control valve (comprising magnetic valve and manual valve), is used for the pilot-gas circulation; The structure that has provided the valve controlling box of two tank bodies in the equipment promptly connects equipment 1 and connects equipment 2, can utilize the expansion mouth to expand as required; Equipment adopts the clip bite type to connect, and has guaranteed that the stopping property of pipeline is convenient to the dismounting maintenance simultaneously, and the layer-stepping design philosophy guarantees that two the controlling elements positions of tank body in the valve controlling box are corresponding, is convenient to examination and maintenance.
Below the annexation between each parts corresponding action and the parts among Fig. 3 is made description:
The CA gas piping links to each other with magnetic valve 3 by manual ball valve 1, reducing valve 2, and magnetic valve 3 is subjected to corresponding rly. output signal control to produce switch motion, and then control pneumatic diaphragm valve 5;
D2 gas connects tank body by manual ball valve 1, reducing valve 2, fire insulation valve 9, starting valve 5 homogenous quantities under meters (D2) 7, check valve 4, is controlled the break-make of deuterium gas again under the situation of pneumatic diaphragm valve 5 switches through under meter 104 by the adjustment signal of D/A converter 108 outputs;
N2 gas connects tank body by manual ball valve 1, reducing valve 2, magnetic valve 3 homogenous quantities under meters (N2) 8, check valve 4, is controlled the break-make of nitrogen again through under meter 104 by the adjustment signal of D/A converter 108 outputs;
Emptying pipe connects tank body by magnetic valve 3, is used to vacuumize;
Analysis conduit connects tank body by suspended body flowmeter 11, concentration analyzer 12, needle-valve 13, T-valve 10, manual ball valve 1, magnetic valve 3, check valve 4, is used for the gasometry outlet;
The high position that marked gas inlet Span in is used to demarcate concentration analyzer is connected with analysis of pipeline through T-valve 10;
Marked gas inlet Zero in is used to demarcate the low level of concentration analyzer, is connected with analysis of pipeline through T-valve 10;
Exhaust line connects tank body by sound damper 15, magnetic valve 3, check valve 4 and is used for emitting at last mixed gas in the tank body;
Pressure unit 14 connects tank body and is used to detect mixture pressure in the tank body.
Claims (5)
1, a kind of control method of optical fiber processing is characterized in that adopting following steps:
1) controlled variable of equipment is set;
2) optical fiber that will draw moulding is placed on sealing locking in the treatment tank, starts vacuum pump earlier tank body is vacuumized, and charges into nitrogen then, carries out repeatedly more than 3 times;
3) open nitrogen and deuterium gas control valve door and under meter simultaneously tank body is charged into gas, utilize pressure unit and A/D converter to detect whether gaseous tension reaches setting pressure in the tank body, when reaching certain gaseous tension, stop inflation;
4) allow two kinds of gas mixing certain hours, utilize concentration analyzer detected gas concentration, as required the deuterium gas concentration is finely tuned;
5) keep tank body sealed environment certain hour, regularly detect the concentration of mixed gas;
6) processing finishes, and discharges mixed gas and takes out the optical fiber that disposes.
2, a kind of control device of the optical fiber processing of making according to the described method of claims 1 is characterized in that this device comprises:
Treatment tank provides optical fiber processing required atmosphere surrounding;
Pressure unit is used to detect the intravital gaseous tension of treatment tank;
Concentration analyzer is used to detect the volumetric concentration of handling deuterium gas in the tank body;
Under meter is used to test the flow of deuterium gas and nitrogen, and controls the conducting of gas circuit;
Analog quantity input terminus daughter board is used to provide the port of sampled signal input, and signal is carried out modulated filter;
The A/D change-over circuit carries out the A/D conversion with the analog signal data that analog quantity input terminus daughter board obtains, and is transformed into numerary signal;
Industrial computer is used to carry out parameter setting, data processing and generation control command;
The D/A change-over circuit converts numerary signal to analog control signal, and under meter is carried out the control that flow is adjusted;
The digital quantity output board is handled the control signal that industrial computer produces, and produces relay control signal according to control signal;
Rly. is used to produce the action of control signal control solenoid control case;
The solenoid control case is used to control the gas circuit conducting or ends.
3, according to the control device of claims 2 described optical fiber processing, it is characterized in that, solenoid control case in this device comprises: pressurized air CA gas piping links to each other with magnetic valve by manual ball valve, reducing valve, magnetic valve is subjected to corresponding rly. output signal control to produce switch motion, and then the control pneumatic diaphragm valve; Deuterium gas D2 connects tank body by manual ball valve, reducing valve, fire insulation valve, pneumatic diaphragm valve homogenous quantities under meter D2, check valve, is controlled the break-make of deuterium gas again under the situation of pneumatic diaphragm threshold switch through under meter by the adjustment signal of D/A converter output; Nitrogen N 2 connects tank body by manual ball valve, reducing valve, magnetic valve homogenous quantities under meter N2, check valve, is controlled the break-make of nitrogen again through under meter by the adjustment signal of D/A converter output; Emptying pipe connects tank body by magnetic valve, is used to vacuumize; Analysis conduit connects tank body by suspended body flowmeter, concentration analyzer, needle-valve, T-valve, manual ball valve, magnetic valve, check valve, is used for the gasometry outlet; The high position that marked gas inlet Span in is used to demarcate concentration analyzer is connected with analysis of pipeline through T-valve; Marked gas inlet Zero in is used to demarcate the low level of concentration analyzer, is connected with analysis of pipeline through T-valve; Exhaust line connects tank body by sound damper, magnetic valve, check valve and is used for emitting at last mixed gas in the tank body; Pressure unit connects tank body, is used to detect the pressure of mixed gas in the tank body.
4, according to the control device of claims 2 or 3 described optical fiber processing, it is characterized in that: the solenoid control case in this device comprises the valve control texture of 2 tank bodies, can also expand with the expansion mouth, the valve control texture hierarchal arrangement of 2 tank bodies, controlling elements position are corresponding mutually.
5, according to the control device of claims 2 or 3 described optical fiber processing, it is characterized in that: the pipeline in the solenoid control case in this device adopts the clip bite type to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510030101 CN1939859A (en) | 2005-09-28 | 2005-09-28 | Optical-fibre controlling method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510030101 CN1939859A (en) | 2005-09-28 | 2005-09-28 | Optical-fibre controlling method and apparatus |
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| CN1939859A true CN1939859A (en) | 2007-04-04 |
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| CN 200510030101 Pending CN1939859A (en) | 2005-09-28 | 2005-09-28 | Optical-fibre controlling method and apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757187A (en) * | 2011-04-27 | 2012-10-31 | 三星(海南)光通信技术有限公司 | Deuterium treating device and method for optical fiber |
| CN103962021A (en) * | 2014-05-07 | 2014-08-06 | 江苏亨通光纤科技有限公司 | Concentration and pressure synchronously adjustable deuterium gas proportioning method for optical fibers |
| CN110066122A (en) * | 2018-01-24 | 2019-07-30 | 住友电气工业株式会社 | The manufacturing method of optical fiber |
| CN110426179A (en) * | 2019-07-31 | 2019-11-08 | 杭州永特信息技术有限公司 | A kind of high-precision diversification optical fiber optical wand atmosphere experimental rig and test method |
| CN111258344A (en) * | 2020-02-18 | 2020-06-09 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Gas concentration regulating system, method and device |
-
2005
- 2005-09-28 CN CN 200510030101 patent/CN1939859A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757187A (en) * | 2011-04-27 | 2012-10-31 | 三星(海南)光通信技术有限公司 | Deuterium treating device and method for optical fiber |
| CN103962021A (en) * | 2014-05-07 | 2014-08-06 | 江苏亨通光纤科技有限公司 | Concentration and pressure synchronously adjustable deuterium gas proportioning method for optical fibers |
| CN103962021B (en) * | 2014-05-07 | 2016-06-22 | 江苏亨通光纤科技有限公司 | A kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure |
| CN110066122A (en) * | 2018-01-24 | 2019-07-30 | 住友电气工业株式会社 | The manufacturing method of optical fiber |
| CN110066122B (en) * | 2018-01-24 | 2022-11-18 | 住友电气工业株式会社 | Method for manufacturing optical fiber |
| CN110426179A (en) * | 2019-07-31 | 2019-11-08 | 杭州永特信息技术有限公司 | A kind of high-precision diversification optical fiber optical wand atmosphere experimental rig and test method |
| CN111258344A (en) * | 2020-02-18 | 2020-06-09 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Gas concentration regulating system, method and device |
| CN111258344B (en) * | 2020-02-18 | 2023-02-28 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Gas concentration regulating system, method and device |
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Open date: 20070404 |