CN103279147B - Temperature control system for controlling optical fiber temperature excursion and application method of temperature control system - Google Patents

Temperature control system for controlling optical fiber temperature excursion and application method of temperature control system Download PDF

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Publication number
CN103279147B
CN103279147B CN201310179406.6A CN201310179406A CN103279147B CN 103279147 B CN103279147 B CN 103279147B CN 201310179406 A CN201310179406 A CN 201310179406A CN 103279147 B CN103279147 B CN 103279147B
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optical fiber
aluminum alloy
temperature
control system
heat
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CN103279147A (en
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吴昌聚
徐秀琴
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The invention discloses a temperature control system for controlling optical fiber temperature excursion and a control method of the temperature control system. An aluminum alloy cylinder is placed in the middle of a glass fiber reinforced plastic cubic box, and a gap between the aluminum alloy cylinder and the glass fiber reinforced plastic cube is filled by aerogel. Deionized water is fully filled inside the aluminum alloy cylinder, an optical fiber winder is submerged by the deionized water, and a sealing ring is added between the aluminum alloy cylinder and a cylinder cover for sealing. The outer surface of the whole cylinder is plated with silver coatings. A plurality of layers of heat insulation materials covers the outer wall of the glass fiber reinforced plastic cubic box of the whole device. The low heat conducting performance of the multilayer, the aerogel and the glass fiber reinforced plastics is utilized, and the influence on the inside optical fiber caused by external heat sources is prevented. Through the deionized water with great specific heat capacity and aluminum alloy liquid with good heat conducting performance adopted at the inside, the heating quantity generated by the optical fiber per se is diffused as soon as possible, and in addition, the caused temperature is diffused as little as possible. The temperature control system has the advantages that the temperature excursion of the optical fiber is effectively controlled, and distance measuring signals transmitted to the tail end of the optical fiber are enabled not to generate the distortion phenomenon.

Description

A kind of temperature control system and application process thereof controlling optical fiber temperature drift
Technical field
The present invention relates to control system and the application process thereof of the drift of a kind of temperature, be specially adapted to the temperature drift controlling optical fiber.
Background technology
Pseudo-random code ranging and carrier wave range finding have become the important means of precision distance measurement between star.The remote checking of carrier wave range measurement system distance accuracy is forwarded, a kind of optical fiber verification system of test design in order to realize pseudo-random code ranging system and round trip.This system, based on optical fiber communication principle, utilizes the advantages such as the volume of optical fiber is little, attenuation coefficient is little, strong interference immunity, achieves distance measuring signal long-distance transmissions in a fiber.Due to impacts such as the non-linear of light in fibre-optic transmission system (FOTS) and dispersions, be difficult to ensure that distance measuring signal is completely undistorted in transmitting procedure.The temperature variation of optical fiber is very large on the impact of distance accuracy, and optical fiber is put into constant temperature oven by traditional distance-finding method, because optical fiber is to the sensitive of temperature and stress, have impact on the thermometric effect under the environmental baseline that vibration environment and temperature variation are larger.So need the temperature control system designing complete set to carry out temperature control to long-distance optical fiber, to ensure that the distance measuring signal transferring to optical fiber connector does not occur distortion phenomenon.
Summary of the invention
In order to overcome the technical deficiency of prior art, the object of this invention is to provide a kind of temperature control system and the application process that control optical fiber temperature drift.
Control a temperature control system for optical fiber temperature drift, comprise optical fiber bobbin winoler, aluminum alloy drum, fiberglass cuboid box; The optical fiber bobbin winoler being wound with optical fiber is placed in aluminum alloy drum inside, deionized water is contained in the inside of aluminum alloy drum, deionized water floods optical fiber bobbin winoler, O-ring seal is provided with between the stack shell of aluminum alloy drum and cover, aluminum alloy drum does not contact with fiberglass cuboid box, gap is provided with heat insulation aerogel, is enclosed with multilayer insulation material at the outer wall of fiberglass cuboid box.
Described optical fiber drum adopts aluminum alloy material.
The stack shell of described aluminum alloy drum is processed by aluminium alloy integration, and sealed by O-ring seal between stack shell and cover, the outside surface of thin-walled cylinder barrel adopts silver-plated coating.
A kind of application process controlling the temperature control system of optical fiber temperature drift, when ambient temperature changes, because the heat-proof quality of multilayer insulation material is good, decrease the heat being passed to multilayer insulation material internal layer, because the temperature conductivity of fiberglass cube big box is low, heat insulation aerogel heat-insulating performance is good, so further reduce the heat that the external world passes to optical fiber, the silver-plated coating on aluminum alloy drum surface, absorptivity is low, ambient temperature is little on its impact, decreases the impact of external heat source on internal optical fiber; The thermal value of optical fiber itself passes to the optical fiber bobbin winoler of aluminium alloy, and the thermal value of optical fiber can be delivered in water very soon, and water absorbs a large amount of heat energy and the change of water temperature is little; The heat of optical fiber bobbin winoler by Water transport to aluminum alloy drum, and the thermal capacity of aluminum alloy drum is large, temperature variation is little, and the thermal value of optical fiber own is absorbed fast, thus control the temperature drift of optical fiber, make the distance measuring signal transferring to optical fiber connector not occur distortion phenomenon.
Beneficial effect of the present invention is: the first, whole apparatus structure is simple, and isolation external heat source heat, with to distribute interior thermal effect obvious, effectively can control the temperature drift of optical fiber, ensure that the distance measuring signal transferring to optical fiber connector does not occur distortion phenomenon.The second, cost of the present invention is low, and efficiency is high, and in such circumstances, the temperature drift of optical fiber is little, and anti-interference ability is strong, dependable performance, the precision of measurement and interchangeability good, the device more in changing device is simple and convenient, and the maintenance of temperature regulating device is little.Three, due to internal heat dissipating, the double effect of external insulation, glassware for drinking water has buffer action, and it is comparatively large and use under having the environment of vibration that this device is applicable to variation of ambient temperature, and effectively make the distance measuring signal transporting to optical fiber connector not occur distortion phenomenon, ensure that distance accuracy.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation controlling the temperature control system of optical fiber temperature drift.
Fig. 2 is the shaft side figure of optical fiber bobbin winoler of the present invention.
Fig. 3 is the cut-open view of optical fiber bobbin winoler of the present invention.
Fig. 4 is the vertical view of optical fiber bobbin winoler of the present invention.
Fig. 5 is the structural representation of aluminum alloy drum of the present invention.
Fig. 6 is the vertical view of aluminum alloy drum of the present invention.
Fig. 7 is the structural representation of fiberglass cuboid box of the present invention
Description of reference numerals: 1, optical fiber bobbin winoler; 2, aluminum alloy drum; 3, fiberglass cuboid box; 4, cube reinforced plastic plate; 5, aluminum alloy drum cover; 6, aluminum alloy drum stack shell.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, a kind of temperature control system controlling optical fiber temperature drift comprises optical fiber bobbin winoler 1, aluminum alloy drum 2, fiberglass cuboid box 3.The optical fiber bobbin winoler 1 being wound with optical fiber is placed in aluminum alloy drum 2 inside, and fill deionized water in the inside of aluminum alloy drum 2, deionized water floods optical fiber bobbin winoler 1, adds O-ring seal and seal between the stack shell 6 of aluminum alloy drum 2 and cover 5.Aluminum alloy drum 2 be suspended in fiberglass cuboid box 3, aluminum alloy drum 2 is filled with heat insulation aerogel 4 with the gap of fiberglass cuboid box 3.Multilayer insulation material is superscribed at the outer wall of whole fiberglass cuboid box 3.
As shown in Figure 2, described optical fiber drum 1 needs to adopt aluminium alloy processing, and its heat conduction and good heat dispersion performance, make the heating of optical fiber itself distribute.
As shown in Figure 5, the stack shell of described aluminum alloy drum 2 is by aluminium alloy integration processing, and sealed by O-ring seal between stack shell 6 and cover 5, the outside surface of thin-walled cylinder barrel 3 needs to adopt silver-plated coating, reduces the absorptivity on its surface.
A kind of application process controlling the temperature control system of optical fiber temperature drift: when ambient temperature changes, because the heat-proof quality of multilayer insulation material is good, so the heat being passed to multilayer insulation material internal layer is few, because the temperature conductivity of fiberglass cube big box 3 is low, heat insulation aerogel heat-insulating performance is good, so the heat that the external world passes to optical fiber is few, decrease the impact of external heat source on internal optical fiber, the silver-plated coating on aluminum alloy drum 2 surface, absorptivity is low, ambient temperature is little on its impact, decreases the impact of external heat source on internal optical fiber.Optical fiber bobbin winoler 1 is made by the aluminium alloy large by temperature conductivity, rapidly the thermal value of optical fiber itself can be passed to optical fiber bobbin winoler 1, whole optical fiber bobbin winoler 1 immerses in the large deionized water of specific heat capacity, because glassware for drinking water has good perviousness and specific heat is large, the thermal value of optical fiber can be delivered in water very soon, and the change of water temperature is very small.Aluminum alloy drum 2 and optical fiber cable device 1 are all that aluminium alloy is processed, heat conduction and perfect heat-dissipating, and the heat of optical fiber bobbin winoler 1 passes to aluminum alloy drum 2 very soon, and the thermal capacity of aluminum alloy drum 2 is large, and temperature variation is little, and the thermal value of optical fiber own is distributed.This invention takes the method simultaneously controlling external heat source and endogenous pyrogen, isolated external heat source, distributes endogenous pyrogen in time effectively.Control the temperature drift of optical fiber, ensure that the distance measuring signal transferring to optical fiber connector does not occur distortion phenomenon.

Claims (4)

1. control a temperature control system for optical fiber temperature drift, it is characterized in that: it comprises optical fiber bobbin winoler (1), aluminum alloy drum (2), fiberglass cuboid box (3); The optical fiber bobbin winoler (1) being wound with optical fiber is placed in aluminum alloy drum (2) inside, deionized water is contained in the inside of aluminum alloy drum (2), deionized water floods optical fiber bobbin winoler (1), O-ring seal is provided with between the stack shell (6) of aluminum alloy drum (2) and cover (5), aluminum alloy drum (2) does not contact with fiberglass cuboid box (3), gap is provided with heat insulation aerogel (4), is enclosed with multilayer insulation material at the outer wall of fiberglass cuboid box (3).
2. a kind of temperature control system controlling optical fiber temperature drift as claimed in claim 1, is characterized in that: described optical fiber bobbin winoler (1) adopts aluminum alloy material.
3. a kind of temperature control system controlling optical fiber temperature drift as claimed in claim 1, is characterized in that: the stack shell of described aluminum alloy drum (2) is processed by aluminium alloy integration, and the outside surface of aluminum alloy drum (2) adopts silver-plated coating.
4. one kind controls the application process of the temperature control system of optical fiber temperature drift as claimed in claim 3, it is characterized in that: when ambient temperature changes, because the heat-proof quality of multilayer insulation material is good, decrease the heat being passed to multilayer insulation material internal layer, because the temperature conductivity of fiberglass cube big box (3) is low, heat insulation aerogel heat-insulating performance is good, so further reduce the heat that the external world passes to optical fiber, the silver-plated coating on aluminum alloy drum (2) surface, absorptivity is low, ambient temperature is little on its impact, decrease the impact of external heat source on internal optical fiber, the thermal value of optical fiber itself passes to the optical fiber bobbin winoler (1) of aluminium alloy, and the thermal value of optical fiber can be delivered in water very soon, and water absorbs a large amount of heat energy and the change of water temperature is little, the heat of optical fiber bobbin winoler (1) by Water transport to aluminum alloy drum (2), and the thermal capacity of aluminum alloy drum (2) is large, temperature variation is little, the thermal value of optical fiber own is absorbed fast, thus control the temperature drift of optical fiber, make the distance measuring signal transferring to optical fiber connector not occur distortion phenomenon.
CN201310179406.6A 2013-05-15 2013-05-15 Temperature control system for controlling optical fiber temperature excursion and application method of temperature control system Active CN103279147B (en)

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CN104596670B (en) * 2015-02-05 2017-07-11 吉林大学 A kind of method for solving distributed fiber Raman temperature-sensing system temperature drift

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1688585A2 (en) * 1998-12-17 2006-08-09 Chevron USA, Inc. Apparatus and method for protecting devices, especially fibre optic devices, in hostile environments
CN201772882U (en) * 2010-07-06 2011-03-23 北京自动化控制设备研究所 Thermal insulation device used in fiber optic gyroscope
CN102749090A (en) * 2012-07-25 2012-10-24 浙江大学 Method for temperature drift of fiber optic gyroscope
CN102790345A (en) * 2012-06-29 2012-11-21 西北大学 Ultralow temperature semiconductor refrigeration device for optical fiber laser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1688585A2 (en) * 1998-12-17 2006-08-09 Chevron USA, Inc. Apparatus and method for protecting devices, especially fibre optic devices, in hostile environments
CN201772882U (en) * 2010-07-06 2011-03-23 北京自动化控制设备研究所 Thermal insulation device used in fiber optic gyroscope
CN102790345A (en) * 2012-06-29 2012-11-21 西北大学 Ultralow temperature semiconductor refrigeration device for optical fiber laser
CN102749090A (en) * 2012-07-25 2012-10-24 浙江大学 Method for temperature drift of fiber optic gyroscope

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