JPH01102831U - - Google Patents
Info
- Publication number
- JPH01102831U JPH01102831U JP20056187U JP20056187U JPH01102831U JP H01102831 U JPH01102831 U JP H01102831U JP 20056187 U JP20056187 U JP 20056187U JP 20056187 U JP20056187 U JP 20056187U JP H01102831 U JPH01102831 U JP H01102831U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- thin film
- cut
- detection sensor
- resin block
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000011162 core material Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案の一実施例の縦断面図、第２図
は従来例の縦断面図である。
１……光フアイバ心線、１ａ……コア、２……
樹脂ブロツク、３……保護薄膜。
FIG. 1 is a vertical cross-sectional view of an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of a conventional example. 1... Optical fiber core wire, 1a... Core, 2...
Resin block, 3...protective thin film.
Claims (1)
状にして樹脂ブロツクの内部に埋設し、光フアイ
バの湾曲外径側に当たる前記樹脂ブロツクの一面
を光フアイバのコアが露出するまで切削研磨し、
この切削研磨面上にコア材料より屈折率が低い材
料で保護薄膜を形成したことを特徴とする液体検
知センサ。 (2) 前記保護薄膜の膜厚を１０μｍ以下とした
実用新案登録請求の範囲第１項に記載の液体検知
センサ。[Claims for Utility Model Registration] (1) An optical fiber is provided, the optical fiber is curved and buried inside a resin block, and one surface of the resin block corresponding to the curved outer diameter side of the optical fiber is inserted into the core of the optical fiber. Cut and polish until exposed,
A liquid detection sensor characterized in that a protective thin film is formed on the cut and polished surface using a material whose refractive index is lower than that of the core material. (2) The liquid detection sensor according to claim 1, wherein the protective thin film has a thickness of 10 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20056187U JPH01102831U (en) | 1987-12-28 | 1987-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20056187U JPH01102831U (en) | 1987-12-28 | 1987-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102831U true JPH01102831U (en) | 1989-07-11 |
Family
ID=31490963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20056187U Pending JPH01102831U (en) | 1987-12-28 | 1987-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102831U (en) |
-
1987
- 1987-12-28 JP JP20056187U patent/JPH01102831U/ja active Pending
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