CN1349085A - Optical fiber F-P interferometer of metal-ceramic structure - Google Patents
Optical fiber F-P interferometer of metal-ceramic structure Download PDFInfo
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- CN1349085A CN1349085A CN 01139526 CN01139526A CN1349085A CN 1349085 A CN1349085 A CN 1349085A CN 01139526 CN01139526 CN 01139526 CN 01139526 A CN01139526 A CN 01139526A CN 1349085 A CN1349085 A CN 1349085A
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- metal
- optical fiber
- fiber
- interferometer
- regulating arm
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Abstract
The invention relates to optical fiber sensor and optical fiber F-P interferometer used in optical measuring. The product is produced as following steps. Screw threads are made on both ends of metal guiding tube to connect two metal regulating arms. The center hole on front end of the metal regulating arm is a little larger in diameter where ceramic tube is installed on. The inner bore of ceramic tube is cone-shaped. Fiber is inserted into the ceramic tube through the metal regulating arm, then fixed up by using glue. The end surface of the ceramic tube and fiber as one-piece is ground and coated. The invented F-P interferometer possesses the merits of simple structure, easy to operate and production in large scale.
Description
The invention belongs to optical element, particularly relate to the fiber F-P interferometer that Fibre Optical Sensor and optical detection are used.
In recent years, along with the fast development of optical fiber sensing technology, people are used to measure Fibre Optical Sensors such as temperature, displacement and strain after deliberation.Used F-P interferometer all is that optical fiber by two plated films on end face is inserted in the glass capillary and constitutes in this sensor.Because the optical fiber external diameter is 125 μ m, the diameter of glass capillary is 200 μ m, should accomplish optical fiber is inserted into glass capillary and do not damage fiber end face to guarantee that also two fiber end faces centering in glass capillary is very difficult.Plated film also is very difficult on this external fiber end face, and the distance between both ends of the surface is difficult for adjusting.Therefore, the making of sensor can only single making be used for the laboratory, not can manufacture; On the other hand, because bare fibre and glass capillary very easily destroy, necessary in use added metal protective seam connects and stick with glue between protective seam and sensor fibre, and this makes the sensor response hysteresis phenomenon occur.Therefore, this sensor majority still rests on laboratory stage.
The object of the present invention is to provide a kind of fiber F-P interferometer that is applicable to Fibre Optical Sensor.This invention is simple in structure, easy to operate, guarantees that measurand does not have hysteresis phenomenon and exists, and can produce in batches, forms product.
This metal-ceramic structure fiber F-P interferometer comprises ceramic pipe 1, metal orienting sleeve 2, metal regulating arm 3 and optical fiber 4.It is characterized in that: be connected with two metal regulating arms 3 with fine thread respectively in the center pit at metal orienting sleeve 2 two ends of tubular structure; Metal regulating arm 3 also is a tubular structure, and the slightly larger in diameter of the center pit of front end is wherein installed ceramic pipe 1; Ceramic pipe 1 endoporus is a bellmouth; Optical fiber 4 is fixed by blended rubber in the center insertion ceramic pipe 1 of metal regulating arm 3.The end face of the ceramic pipe 1 that sticks to one and optical fiber 4 is polished the back plated film; Regulate the length that metal regulating arm 3 just can be regulated fiber F-P cavity.The not equal diameter convex-concave outside surface at metal regulating arm 3 rear portions is used for fixing optical fiber 4, forms protective seam.
Drawings and Examples:
Fig. 1 metal-ceramic structure fiber F-P interferometer structure synoptic diagram
Fig. 1 is disclosed to be one embodiment of the present of invention (see figure 1)s, and metal orienting sleeve 2 is a tubular structure, is processing fine thread near in the center pit at two ends; Metal regulating arm 3 also is a tubular structure, and its forward outer surface is processed with that fine threads match in fine thread and the metal orienting sleeve 2, and its rear portion is equal diameter convex-concave outside surface not, and the anterior diameter processing of metal regulating arm 3 center pits is big slightly, installation ceramic pipe 1; Ceramic pipe 1 endoporus is a bellmouth; Optical fiber 4 is fixed by blended rubber in the center insertion ceramic pipe 1 of metal regulating arm 3.The end face of the ceramic pipe 1 that sticks to one and optical fiber 4 is polished the back plated film.
Metal-ceramic structure fiber F-P interferometer structure is simple, easy to operate, and can produce in batches, forms product.
Claims (2)
1, a kind of fiber F-P interferometer of metal-ceramic structure, comprise that ceramic pipe (1), metal orienting sleeve (2), metal regulating arm (3) and optical fiber (4) forms, it is characterized in that: in the two ends center pit of the metal orienting sleeve (2) of tubular structure, process fine thread respectively and be connected with two metal regulating arms (3); Metal regulating arm (3) also is a tubular structure, and the anterior diameter of the center pit of front end is big slightly, and ceramic pipe (1) wherein is installed, and ceramic pipe (1) endoporus is a bellmouth; Optical fiber (4) inserts the middle blended rubber of ceramic pipe (1) by the center of metal regulating arm (3) and is fixed.The end face of the ceramic pipe (1) that sticks to one and optical fiber (4) is polished the back plated film.
2, fiber F-P interferometer according to claim 1 is characterized in that: the rear portion of metal regulating arm (3) is equal diameter convex-concave outside surface not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011395265A CN1140777C (en) | 2001-11-21 | 2001-11-21 | Optical fiber F-P interferometer of metal-ceramic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011395265A CN1140777C (en) | 2001-11-21 | 2001-11-21 | Optical fiber F-P interferometer of metal-ceramic structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1349085A true CN1349085A (en) | 2002-05-15 |
| CN1140777C CN1140777C (en) | 2004-03-03 |
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ID=4675258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011395265A Expired - Fee Related CN1140777C (en) | 2001-11-21 | 2001-11-21 | Optical fiber F-P interferometer of metal-ceramic structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1140777C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034028B (en) * | 2007-02-09 | 2010-05-19 | 南京师范大学 | Fabry-Perotw fiber-optic pressure sensor and manufacture method therefor |
| CN115183685A (en) * | 2022-07-23 | 2022-10-14 | 内江师范学院 | Optical fiber Fabry-Perot displacement sensor |
-
2001
- 2001-11-21 CN CNB011395265A patent/CN1140777C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034028B (en) * | 2007-02-09 | 2010-05-19 | 南京师范大学 | Fabry-Perotw fiber-optic pressure sensor and manufacture method therefor |
| CN115183685A (en) * | 2022-07-23 | 2022-10-14 | 内江师范学院 | Optical fiber Fabry-Perot displacement sensor |
| CN115183685B (en) * | 2022-07-23 | 2023-09-19 | 内江师范学院 | Optical fiber Fabry-Perot displacement sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1140777C (en) | 2004-03-03 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |