JPH0232570B2 - - Google Patents
Info
- Publication number
- JPH0232570B2 JPH0232570B2 JP60186565A JP18656585A JPH0232570B2 JP H0232570 B2 JPH0232570 B2 JP H0232570B2 JP 60186565 A JP60186565 A JP 60186565A JP 18656585 A JP18656585 A JP 18656585A JP H0232570 B2 JPH0232570 B2 JP H0232570B2
- Authority
- JP
- Japan
- Prior art keywords
- core
- leakage
- cladding
- oil
- sensor
- 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.)
- Expired - Lifetime
Links
- 239000011162 core material Substances 0.000 claims description 70
- 238000001514 detection method Methods 0.000 claims description 66
- 238000005253 cladding Methods 0.000 claims description 57
- 239000013307 optical fiber Substances 0.000 claims description 37
- 230000003287 optical effect Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
- G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
- G01M3/047—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60186565A JPS6247531A (ja) | 1985-08-27 | 1985-08-27 | 漏洩検知用光フアイバセンサ及びその製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60186565A JPS6247531A (ja) | 1985-08-27 | 1985-08-27 | 漏洩検知用光フアイバセンサ及びその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6247531A JPS6247531A (ja) | 1987-03-02 |
| JPH0232570B2 true JPH0232570B2 (US20080293856A1-20081127-C00150.png) | 1990-07-20 |
Family
ID=16190749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60186565A Granted JPS6247531A (ja) | 1985-08-27 | 1985-08-27 | 漏洩検知用光フアイバセンサ及びその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6247531A (US20080293856A1-20081127-C00150.png) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2650998B2 (ja) * | 1989-01-07 | 1997-09-10 | 古河電気工業株式会社 | 液体、気体等の検知用光ファイバ |
| JPH02275906A (ja) * | 1989-04-18 | 1990-11-09 | Sumitomo Electric Ind Ltd | 光ファイバセンサ |
| US5239176A (en) * | 1991-10-03 | 1993-08-24 | Foster-Miller, Inc. | Tapered optical fiber sensing attenuated total reflectance |
| US5585634A (en) * | 1994-09-29 | 1996-12-17 | Foster-Miller, Inc. | Attenuated total reflectance sensing |
| CN114018435A (zh) * | 2021-09-18 | 2022-02-08 | 湖北三江航天红峰控制有限公司 | 一种固体火箭发动机推进剂脱粘检测装置及检测方法 |
-
1985
- 1985-08-27 JP JP60186565A patent/JPS6247531A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6247531A (ja) | 1987-03-02 |
