CN202119938U - High-strength high-temperature compensation optical fiber - Google Patents
High-strength high-temperature compensation optical fiber Download PDFInfo
- Publication number
- CN202119938U CN202119938U CN2011202308589U CN201120230858U CN202119938U CN 202119938 U CN202119938 U CN 202119938U CN 2011202308589 U CN2011202308589 U CN 2011202308589U CN 201120230858 U CN201120230858 U CN 201120230858U CN 202119938 U CN202119938 U CN 202119938U
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- optical fiber
- temperature
- coating
- strength
- temperature compensation
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Abstract
A high-strength high-temperature compensation optical fiber is characterized in that a negative thermal expansion coating (2), a high temperature resistant coating (3) and a high strength protective layer (4) are successively covered at the outside an optical fiber fiber core (1), influences of thermal expansion and thermal contraction onto the optical fiber caused by temperature changes can be effectively compensated, the optical fiber can still normally transmit signals under the condition of changed temperature, the high temperature resistant coating (3) can guarantee that the optical fiber can be used for a long time when the temperature is above 300 DEG C, and the high strength protective layer (4) guarantee that the optical fiber can withstand large extraneous forces, thereby protecting the optical fiber. The high-strength high-temperature compensation optical fiber is simple in structure and technology, substantially widens application field of the optical fiber, and improves usage life of the optical fiber.
Description
Technical field
The utility model belongs to the sensor fibre technical field, relates to a kind of high strength high temperature compensated optical fiber.
Background technology
Sensor fibre is mainly used in industries such as traffic, building, electric power, colliery, petrochemical industry, dam, and its effect is to carry out signal transmission and sensing.The optical fiber of prior art is made up of fiber core and external coating, and its structure is that fiber core applies external coating, and external coating is the common external coating that contains acrylates.
Its principle of work is: different to the refractive index of light through fiber core with external coating, and make light that total reflection take place in optical fiber, so can transmit and sensing.
The defective that the optical fiber of prior art exists in practical application with not enough as follows: 1, when ambient temperature changes, owing to the thermal expansivity of fibre core and external coating is different, cause fibre core and external coating to push mutually, fibre core is out of shape, thereby causes the big high attenuation of light signal; 2, use common coating, can't under hot environment, use; 3, general optical fiber is relatively more fragile, is easy to fracture, can not adapt to normal transmission signal under the complex environments such as aeromotor, rocket.In sum, there are many deficiencies in existing fiber, thereby reduces the practical value of optical fiber greatly.
Summary of the invention
The present invention's purpose: the present invention's purpose is the deficiency to existing fiber, has proposed a kind of high strength high temperature compensated optical fiber.
In order to realize the invention described above purpose, intend the following technology that adopts:
The invention is characterized in: wrap the negative expansion coating successively at the fiber core skin, high-temperaure coating and high strength protective seam.
Maximum characteristics of the present invention: increased the negative expansion coating at the fiber core skin, the thermal expansion that causes of compensates and thermal shrinkage be to the influence of optical fiber effectively, makes the optical fiber still can the normal transmission signal under the condition of temperature variation; Adopt high-temperaure coating, guarantee that optical fiber reaches long-term use the under the environment more than 300 degree in temperature; Adopt the high strength protective seam, make optical fiber can bear very big external influence power, protected optical fiber.The utility model is simple in structure, and technology is simple, has enlarged the application of optical fiber significantly, improves the serviceable life of optical fiber.
Description of drawings
Accompanying drawing has been illustrated the cross section of the utility model.
1: fibre core; 2: the negative expansion coating; 3: high-temperaure coating; 4: the high strength protective seam.
Embodiment
A kind of high strength high temperature compensated optical fiber wraps negative expansion coating 2 successively at fiber core 1 skin, high-temperaure coating 3 and high strength protective seam 4.
Claims (1)
1. a high strength high temperature compensated optical fiber is characterized in that: wrap negative expansion coating (2) successively at fiber core (1) skin, high-temperaure coating (3) and high strength protective seam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202308589U CN202119938U (en) | 2011-07-01 | 2011-07-01 | High-strength high-temperature compensation optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202308589U CN202119938U (en) | 2011-07-01 | 2011-07-01 | High-strength high-temperature compensation optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119938U true CN202119938U (en) | 2012-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202308589U Expired - Fee Related CN202119938U (en) | 2011-07-01 | 2011-07-01 | High-strength high-temperature compensation optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119938U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636899A (en) * | 2012-05-08 | 2012-08-15 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display device |
| CN104155716A (en) * | 2014-08-14 | 2014-11-19 | 武汉北方光电科技有限公司 | Low-loss and high-temperature-resistant optical fiber |
| WO2016019578A1 (en) * | 2014-08-08 | 2016-02-11 | 武汉北方光电科技有限公司 | Low-loss and high-temperature-resistant optical fiber |
| CN110426778A (en) * | 2019-07-23 | 2019-11-08 | 西安和其光电科技股份有限公司 | A kind of high-temperature oil resistance large-numerical aperture optical fiber and preparation method thereof |
-
2011
- 2011-07-01 CN CN2011202308589U patent/CN202119938U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636899A (en) * | 2012-05-08 | 2012-08-15 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display device |
| CN102636899B (en) * | 2012-05-08 | 2015-02-04 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display device |
| WO2016019578A1 (en) * | 2014-08-08 | 2016-02-11 | 武汉北方光电科技有限公司 | Low-loss and high-temperature-resistant optical fiber |
| CN104155716A (en) * | 2014-08-14 | 2014-11-19 | 武汉北方光电科技有限公司 | Low-loss and high-temperature-resistant optical fiber |
| CN110426778A (en) * | 2019-07-23 | 2019-11-08 | 西安和其光电科技股份有限公司 | A kind of high-temperature oil resistance large-numerical aperture optical fiber and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20120701 |