WO2007132898A1 - 光ファイバ補強処理装置及び補強処理方法 - Google Patents
光ファイバ補強処理装置及び補強処理方法 Download PDFInfo
- Publication number
- WO2007132898A1 WO2007132898A1 PCT/JP2007/060068 JP2007060068W WO2007132898A1 WO 2007132898 A1 WO2007132898 A1 WO 2007132898A1 JP 2007060068 W JP2007060068 W JP 2007060068W WO 2007132898 A1 WO2007132898 A1 WO 2007132898A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- heater
- heating
- optical fiber
- reinforcing sleeve
- 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.)
- Ceased
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
Definitions
- the present invention relates to an optical fiber reinforcement processing apparatus and a reinforcement processing method in which an optical fiber is fused and connected by a fusion splicing device, and then a fusion spliced portion is reinforced by a reinforcing sleeve.
- the fiber coating at the connection end portion of the optical fiber is removed, the end of the bare glass fiber exposed by the fusion splicing device is butted, and this butted end is It is carried out by heat-melting and fusing.
- the bare fiber part that has been fusion-spliced is protected by the reinforcing member because the mechanical strength is weak with the fiber coating removed.
- This reinforcing member is usually a reinforcing sleeve in which a tensile body (also called a reinforcing rod) and a heat-meltable adhesive grease material are housed in a heat-shrinkable tube that shrinks in the radial direction, and this reinforcing sleeve is heated. The fused portion of the optical fiber is protected by contraction.
- a tensile body also called a reinforcing rod
- a heat-meltable adhesive grease material housed in a heat-shrinkable tube that shrinks in the radial direction
- a general optical fiber fusion part reinforcement process is performed by a reinforcement processing apparatus equipped with a heater, whereas the optical fiber fusion process takes 10 to 20 seconds.
- the time required for heat treatment for reinforcement is 30 to 135 seconds. For this reason, even if the fusion work is performed quickly, it takes a lot of time for the next heat treatment work, so it is difficult to improve the work efficiency of the total fusion splicing process.
- the heating amount of the heater is set higher than usual, and the heating time is shortened by suppressing the temperature rise with a blower arranged below the heater. It is disclosed that the cooling time can be shortened by forcibly cooling with an air blower, and the overall work time can be shortened.
- Patent Document 2 when the outside air temperature is low, it takes a long time to raise the temperature to a predetermined processing temperature. Therefore, when the outside air temperature is low, the heater temperature and the outside air temperature are detected. Increasing the amount of heating of the heater is disclosed.
- Patent Document 3 when the reinforcing sleeve is heated by the reinforcing processing device, the sleeve is heated from the central portion toward both end portions so that no gap remains inside. Further, it is disclosed that the heating time is shortened by concentrating the heating at the start of heating in the central portion of the heater and raising the temperature.
- Patent Document 1 Japanese Utility Model Publication No. 4 24705
- Patent Document 2 Japanese Utility Model Publication No. 2-73602
- Patent Document 3 Japanese Patent No. 3293594
- the force that changes the heating amount of the heater according to the outside air temperature is as low as 10 ° C.
- the initial temperature is low. Even if the heating amount is increased, it takes time to raise the temperature to a predetermined processing temperature.
- the initial temperature of the reinforced processing apparatus changes depending on the environment and usage conditions, and the difference from the outside air temperature also varies. For this reason, it is necessary to constantly monitor the heating temperature of the heater, change the heating amount of the heater frequently, or change the heating time.
- thermistors are used for temperature control to measure the temperature.
- Thermistors are attached to specified parts by bonding or the like, and are easily affected by the external environment such as the outside temperature.
- the detected temperature may fluctuate depending on the installation state or deterioration state. For this reason, the accuracy of the heating control is reduced, and the quality of the reinforcing device varies, and labor is spent on the calibration of the detected temperature.
- there was a time difference in heat conduction between the heater and the thermistor which was excellent in terms of responsiveness. This caused heating overshoot, resulting in excessive power consumption.
- the present invention has been made in view of the above-described circumstances, and it is possible to perform accurate heating control with low power consumption without fluctuation of the detected temperature, even if it is necessary to attach a temperature detecting element such as a thermistor.
- An object of the present invention is to provide an optical fiber reinforcement processing apparatus and a reinforcement processing method. Means for solving the problem
- An optical fiber reinforcement processing apparatus and a reinforcement processing method are an optical fiber reinforcement processing apparatus and a reinforcement processing method that reinforces a fusion-bonded portion of an optical fiber by covering it with a heat-shrinkable reinforcement sleeve.
- Heating control means for controlling the heating of the heater for heating the sleeve, and temperature detection means for detecting the heating temperature of the heater based on a change in the resistance value of the heater are provided. Then, the temperature of the heater that heats the reinforcing sleeve is monitored by temperature detecting means that detects based on the change in the resistance value, and the reinforcing sleeve is heated at a temperature at which the reinforcing sleeve is thermally contracted.
- Heating control and temperature detection are performed by controlling the time during which the power supply to the heater is turned on and off.
- the temperature is detected by detecting the voltage change at the midpoint of the bridge circuit in which the series circuit of the first fixed resistor and the heater resistor and the series circuit of the second fixed resistor and the third fixed resistor are connected in parallel.
- the heating temperature of the central portion of the heater is higher than the heating temperature of both end portions, and the heater temperature is monitored and preliminarily set to a predetermined temperature before the reinforcing sleeve is heated at a temperature that causes heat shrinkage. It is desirable to heat.
- the heater itself for heating the reinforcing sleeve is used as a temperature detection element, a temperature detection element such as a thermistor is not required, and the number of components can be reduced.
- the heater itself is a temperature detection element, it is possible to perform highly accurate heating control with little fluctuation in the detection temperature due to its mounting state and deterioration state, and it is easy to calibrate the detection temperature. it can. Furthermore, wasteful power consumption can be suppressed by improving the responsiveness of temperature control.
- high-precision heating control with low fluctuation temperature detection can stably perform the process of heating the reinforcing sleeve toward the center part force toward both ends.
- the heating time can be shortened effectively.
- FIG. 1 is a circuit diagram illustrating an outline of heating control of a reinforcement processing apparatus according to the present invention.
- FIG. 2 is a diagram for explaining a power supply state to a heater in the present invention.
- FIG. 3 is a diagram for explaining the state of heating time and heating temperature in the present invention.
- FIG. 4 is a diagram for explaining a heat shrinkage state of a reinforcing sleeve in the present invention.
- FIG. 5 is a diagram illustrating a configuration example of a heater used in the present invention.
- FIG. 1 is a circuit diagram for explaining the outline of heating control of a reinforcement processing apparatus according to the present invention
- FIG. 2 is a diagram for explaining a power supply state to a heater in the present invention.
- the resistance Rx of the heater which is the heating element of the reinforcement processing apparatus according to the present invention, is connected in series with the first fixed resistance R 1 and connected in parallel with the series circuit of the second fixed resistance R 2 and the third fixed resistance R 3. It is incorporated as one resistance element of the bridge circuit.
- the first switching means SW1 is for detecting a change in the heater resistance Rx as a temperature detection means to measure the heater temperature
- the second switching means SW2 is a heater resistance as a heating control means. This is for controlling the amount of heat generated by supplying power to Rx.
- the on / off control by the first switching means SW1 and the second switching means SW2 may be performed by hardware or software.
- the first power supply V is lower in voltage than the second power supply V.
- the second power supply V is converted to DC.
- the load circuit to which the first power supply V is applied is a bridge in which a series circuit of a first fixed resistor R1 and a heater resistor Rx and a series circuit of a second fixed resistor R2 and a third fixed resistor R3 are connected in parallel.
- the circuit is configured to detect the voltage Eo at the midpoint of the bridge circuit as a temperature detection means.
- the heater resistance Rx rises due to the power supply, and the voltage Eo is generated when the resistance value changes.
- the heating temperature of the heater resistor Rx is measured by detecting the voltage Eo of the bridge circuit.
- the heating temperature of the heater can be detected even by using a temperature sensitive element such as a thermistor.
- a temperature detecting element such as a thermistor.
- FIG. 2 is a diagram showing an example in which the power supply to the heater resistor Rx is turned on and off to measure the heating temperature of the heater and adjust the amount of heat generated by the heater.
- the voltage E divided by the fixed resistor R1 is applied to the heater resistor Rx.
- the on / off operation by the first switching means SW1 is set to turn on 10 ms and turn off 90 ms in units of 100 ms, for example. If the heater resistance Rx changes the above-mentioned equilibrium force due to heating, this supply Electricity generates a voltage Eo corresponding to the change in the resistance value of the heater resistor Rx at the midpoint of the bridge circuit, and the heater temperature is measured. The change in voltage Eo is fed back to the control unit by voltage comparator D.
- the measurement of the heater temperature by the first switching means SW1 can be carried out even during the non-reinforcing V, during non-operation, and during the heat treatment by the second switching SW2, It is possible to measure the heater temperature at any time or at any time.
- the heater temperature is measured in units of 100 ms in a short pulse of 10 ms, so the power consumption required for temperature measurement is extremely small.
- the heating control by the second switching means SW2 is such that the second power source V force is also applied to the heater resistance Rx.
- the unit of ON / OFF operation by the first switching SW1 is set to 100ms, it is desirable to set it in the unit of 100ms that matches this. For example, it is possible to control such that the ON time in one unit time is 90 ms, the OFF time is 10 ms, and these are turned ON / OFF every predetermined unit time. Instead of the on / off operation per unit time, the on / off ratio within one unit time is changed, such as shortening the on time 90 ms within one unit time and increasing the off time 10 ms. It may be.
- the heater temperature can be preheated to a predetermined temperature before the main heating is performed at the temperature at which the reinforcing sleeve is thermally contracted by the heating control by the second switching means SW2.
- This preheating temperature can also be realized by performing a control such that the power supply from the first power source V is turned on and off every predetermined unit time, similarly to the main heating.
- the heating temperature by the preheating is measured by the above-mentioned on / off operation by the first switching means SW1, and is not higher than the temperature at which the reinforcing sleeve is thermally contracted. It is desirable to do. For example, if a material having a melting temperature of 80 ° C. to 90 ° C. is used, the heating temperature is 60 ° C. to 80 ° C.
- the unit time to be controlled is exemplified as 100 ms. However, depending on the size of the reinforcing sleeve, the unit time may be set to a longer unit time, or on the contrary, the control may be performed more finely in the short unit time. Oh ,.
- FIG. 3 is a diagram for explaining the state of the heating time and the heating temperature by the above-described heating control.
- FIG. 3 (A) shows the case of heating control without preheating
- Fig. 3 (B) shows the case of heating control with preheating.
- the time required for the heat treatment of the reinforcing sleeve is to start heating from point a to point c and then to a constant point from point c to point d. It is maintained at the heating temperature and cooled from point d to point f.
- preheating is performed up to point b in the middle of the temperature increase to point a force c in FIG. 3 (A). Therefore, the time required for the heat treatment of the reinforcing sleeve starts from the point b and heats up to the point c, and then maintains a constant heating temperature from the point c to the point d.
- the power to cool to point e in the middle from point d to point f in Fig. 3 (A) is finished with cooling to point e, and the preheating is maintained without performing further cooling. In preparation for the next reinforcement process.
- the pre-calorie heating is not performed, and the b point force can be efficiently reinforced with the shortened heating time to the e point for the heating time from the point a to the point f. .
- FIG. 4 to 5 are diagrams for explaining an example of the heating mode of the reinforcing sleeve implemented in the present invention
- FIG. 4 is a diagram for explaining the thermal contraction state of the reinforcing sleeve
- FIG. 5 is a structural example of the heater.
- 1 is an optical fiber
- 2 is a bare glass fiber
- 3 is a fused part
- 4 is a reinforcing sleeve
- 5 is an adhesive grease
- 6 is a reinforcing rod
- 7 is a heat-shrinkable tube
- 10a, 10b , 10c is a heater
- 11 is a heater substrate
- 12, 12a, 12b, and 12c are heating conductors.
- the heating temperature of the reinforcing sleeve is set so as to have a mountain-shaped temperature distribution in which the temperature of the central portion of the heater is high and the temperatures on both sides are low.
- This heating mode is disclosed in Patent Document 3.
- the central portion is also increased in temperature relative to the preheating heating temperature.
- Temperature distribution can be set. Thereby, the thermal contraction start of the central part of the reinforcing sleeve is made quick, The heating time can be further shortened.
- FIG. 4B to FIG. 4D are diagrams for explaining the progress of the optical fiber reinforcement processing by heating the reinforcement sleeve 4.
- the pair of fusion-bonded optical fibers 1 are in a state in which the fiber coating is removed and the bare glass fiber 2 is exposed at the fusion part 3 and its vicinity.
- the reinforcing sleeve 4 is put on.
- the reinforcing sleeve 4 is configured, for example, by containing a tube-like heat-meltable adhesive grease 5 and a reinforcing rod 6 in a heat-shrinkable tube 7, and a bare fiber is provided in the central portion of the reinforcing sleeve 4. 2 is placed on the heating plate (not shown) of the reinforcement processing device.
- the adhesive grease material 5 in the central portion begins to melt, and then the central portion
- the heat-shrinkable tube 7 is heat-shrinked, and heat melting and heat-shrinkage proceed as if the adhesive resin material 5 is extruded toward both ends of the center partial force.
- the adhesive resin 5 is filled around the bare fiber 2 without bubbles remaining in the molten adhesive resin 5.
- the adhesive resin material 5 is integrated including a part of the fiber coating, and is reinforced so as to close both ends of the heat-shrinkable tube 7.
- the heater 10a shown in Fig. 5 (A) has a heating conductor 12 embedded in a plate-like heater base 11 made of ceramic or the like.
- the central conductor of the heating conductor 12 is formed more densely than the parts on both sides, and the center The amount of heat generated in the part is set to be larger than that on both sides.
- the heating temperature becomes a mountain shape as shown in Fig. 4 (A).
- a heater 10b shown in Fig. 5 (B) has two sets of heating conductors 12a for heating the central portion and a heating conductor 12b for heating the entire length of the heater on a plate-like heater base 11 such as ceramic.
- the heat conductors are embedded so as to be electrically insulated and stacked.
- the heating conductor 12a and the heating conductor 12b are individually controlled to supply power.For example, in the preheating, only the heating conductor 12a in the center is supplied, and the heating conductor 12b is supplied in main heating.
- the temperature distribution can be a mountain shape like Also, in the main heating, the heating conductor in the middle part on the way 1 Heating control that turns off 2a can also be performed.
- a heater 10c shown in FIG. 5 (C) includes a plate-like heater base 11 made of ceramic or the like, and a heating conductor 12a for heating only the central portion and a heating conductor 12c for heating only both side portions in series. This is an example of being embedded in combination.
- the heating conductor 12a and the heating conductor 12c are individually controlled to supply power.For example, in preheating, the heating conductor 12a is supplied with power only to the central heating conductor 12a and the heating conductor 12c is supplied with main heating. To do.
- the optical fiber reinforcement processing device and the reinforcement processing method according to the present invention use the heater itself for heating the reinforcement sleeve as the temperature detection element, and thus do not require a temperature detection element such as a thermistor.
- the number of parts can be reduced.
- the heater itself is a temperature detection element, it is possible to perform highly accurate heating control with little variation in the detection temperature due to the mounting state and deterioration state, and the calibration of the detection temperature can be facilitated. .
- it has the effect of suppressing the generation of wasteful power consumption by improving the responsiveness of temperature control.
- the fusion spliced portion is connected with a reinforcing sleeve. It is useful as an optical fiber reinforcement processing device for reinforcement.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/084,369 US7699540B2 (en) | 2006-05-17 | 2007-05-16 | Optical fiber reinforcement processing apparatus and optical fiber reinforcement processing method |
| CN2007800012721A CN101356462B (zh) | 2006-05-17 | 2007-05-16 | 光纤增强处理装置和光纤增强处理方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-137912 | 2006-05-17 | ||
| JP2006137912A JP2007310080A (ja) | 2006-05-17 | 2006-05-17 | 光ファイバ補強処理装置及び補強処理方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007132898A1 true WO2007132898A1 (ja) | 2007-11-22 |
Family
ID=38693987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/060068 Ceased WO2007132898A1 (ja) | 2006-05-17 | 2007-05-16 | 光ファイバ補強処理装置及び補強処理方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7699540B2 (ja) |
| JP (1) | JP2007310080A (ja) |
| CN (1) | CN101356462B (ja) |
| WO (1) | WO2007132898A1 (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007310080A (ja) * | 2006-05-17 | 2007-11-29 | Sumitomo Electric Ind Ltd | 光ファイバ補強処理装置及び補強処理方法 |
| JP5117292B2 (ja) * | 2008-06-16 | 2013-01-16 | 古河電気工業株式会社 | 融着接続方法および融着接続機 |
| TWI436113B (zh) * | 2008-08-26 | 2014-05-01 | Fujikura Ltd | 光纖熔融阻斷構件、光纖雷射及光傳送路 |
| JP2012150376A (ja) * | 2011-01-21 | 2012-08-09 | Furukawa Electric Co Ltd:The | 光ファイバ接続部補強部材の加熱装置および加熱方法 |
| WO2014021185A1 (ja) * | 2012-08-03 | 2014-02-06 | Seiオプティフロンティア株式会社 | 光ファイバ補強部材の加熱処理装置、この加熱処理装置を備える光ファイバ融着接続機および光ファイバ補強部材の加熱処理方法 |
| WO2014163950A1 (en) * | 2013-03-13 | 2014-10-09 | Dow Global Technologies Llc | Spliced fiber-reinforced outer shell for cylindrical filtration element |
| KR101692882B1 (ko) * | 2013-03-25 | 2017-01-04 | 가부시키가이샤후지쿠라 | 광섬유 접속부 보강 가열 장치 |
| KR101915592B1 (ko) * | 2013-07-24 | 2018-11-06 | 이노 인스트루먼트 (차이나). 인코퍼레이션 | 광섬유 융착 접속기용 고효율 가열홈 및 광섬유 융착 접속기 |
| US10663666B2 (en) * | 2013-12-05 | 2020-05-26 | United States Of America As Represented By The Secretary Of The Navy | Flexible, low profile kink resistant fiber optic splice tension sleeve |
| CN103674483B (zh) * | 2013-12-13 | 2016-06-22 | 广东高聚激光有限公司 | 大功率光纤熔接点的评估装置和方法 |
| JP6318435B2 (ja) * | 2014-01-28 | 2018-05-09 | Seiオプティフロンティア株式会社 | 光ファイバ接続部の補強装置 |
| JP6317388B2 (ja) | 2016-04-18 | 2018-04-25 | 株式会社フジクラ | 光ファイバ融着接続構造及びレーザ装置の製造方法 |
| JP6667708B1 (ja) * | 2019-10-24 | 2020-03-18 | 日本たばこ産業株式会社 | エアロゾル吸引器の電源ユニット |
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| JPH0278942A (ja) * | 1988-09-16 | 1990-03-19 | Hitachi Ltd | 空燃比センサ温度補償法 |
| JPH0310494U (ja) * | 1989-06-20 | 1991-01-31 | ||
| JPH05164933A (ja) * | 1991-12-16 | 1993-06-29 | Sumitomo Electric Ind Ltd | 光ファイバの融着接続装置 |
| JPH0555491U (ja) * | 1991-12-26 | 1993-07-23 | 東レ株式会社 | 自己温度制御型ヒータ |
| JP2001013355A (ja) * | 1999-06-29 | 2001-01-19 | Sumitomo Electric Ind Ltd | 光ファイバ融着接続部の保護部材加熱装置及び加熱方法 |
Family Cites Families (8)
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| JPH0273602A (ja) | 1988-09-08 | 1990-03-13 | Murata Mfg Co Ltd | 積層型バリスタ |
| JPH0310494A (ja) | 1989-06-07 | 1991-01-18 | Matsushita Electric Ind Co Ltd | ホワイトバランス自動調整装置 |
| JP2678808B2 (ja) | 1990-05-15 | 1997-11-19 | 株式会社ダイフク | 軌道式自走台車のコード板利用の制御方式 |
| JPH0555491A (ja) | 1991-08-27 | 1993-03-05 | Seiko Epson Corp | 半導体装置 |
| US5841204A (en) * | 1997-03-21 | 1998-11-24 | English; Larry G. | Temperature control system and method |
| CN1548934A (zh) * | 2003-05-07 | 2004-11-24 | 刘正洪 | 温度传感器其温度检测电路及方法 |
| US7212718B2 (en) * | 2003-11-12 | 2007-05-01 | Sumitomo Electric Industries, Ltd. | Apparatus and method for heat-treatment of optical fiber reinforcing member and optical fiber fusion splicing apparatus |
| JP2007310080A (ja) * | 2006-05-17 | 2007-11-29 | Sumitomo Electric Ind Ltd | 光ファイバ補強処理装置及び補強処理方法 |
-
2006
- 2006-05-17 JP JP2006137912A patent/JP2007310080A/ja active Pending
-
2007
- 2007-05-16 US US12/084,369 patent/US7699540B2/en active Active
- 2007-05-16 WO PCT/JP2007/060068 patent/WO2007132898A1/ja not_active Ceased
- 2007-05-16 CN CN2007800012721A patent/CN101356462B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0278942A (ja) * | 1988-09-16 | 1990-03-19 | Hitachi Ltd | 空燃比センサ温度補償法 |
| JPH0310494U (ja) * | 1989-06-20 | 1991-01-31 | ||
| JPH05164933A (ja) * | 1991-12-16 | 1993-06-29 | Sumitomo Electric Ind Ltd | 光ファイバの融着接続装置 |
| JPH0555491U (ja) * | 1991-12-26 | 1993-07-23 | 東レ株式会社 | 自己温度制御型ヒータ |
| JP2001013355A (ja) * | 1999-06-29 | 2001-01-19 | Sumitomo Electric Ind Ltd | 光ファイバ融着接続部の保護部材加熱装置及び加熱方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101356462B (zh) | 2010-10-27 |
| JP2007310080A (ja) | 2007-11-29 |
| US7699540B2 (en) | 2010-04-20 |
| CN101356462A (zh) | 2009-01-28 |
| US20090052846A1 (en) | 2009-02-26 |
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