JPS62160352U - - Google Patents
Info
- Publication number
- JPS62160352U JPS62160352U JP4940886U JP4940886U JPS62160352U JP S62160352 U JPS62160352 U JP S62160352U JP 4940886 U JP4940886 U JP 4940886U JP 4940886 U JP4940886 U JP 4940886U JP S62160352 U JPS62160352 U JP S62160352U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- liquid level
- liquid
- optical
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Level Indicators Using A Float (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は本考案に係る液体検出器の一実施例の
断面図、第２図は第１図のセンサヘツドの拡大断
面図、第３図ａ，ｂは光フアイバ素子の各例の断
面図、第４図は検出手段の回路図、第５図は他の
実施例の要部正面図である。
１……フロート、３……センサヘツド、４……
光フアイバ素子、８……光フアイバケーブル、９
……光フアイバコード、１０……発光素子、１１
……受光素子、１８……ガラスフアイバ、１９…
…（金属）被覆、２０……非被覆部、Ａ……検知
手段、Ｌ……液面。
FIG. 1 is a sectional view of an embodiment of a liquid detector according to the present invention, FIG. 2 is an enlarged sectional view of the sensor head of FIG. 1, and FIGS. 3a and 3b are sectional views of each example of an optical fiber element. FIG. 4 is a circuit diagram of the detection means, and FIG. 5 is a front view of main parts of another embodiment. 1...Float, 3...Sensor head, 4...
Optical fiber element, 8... Optical fiber cable, 9
...Optical fiber cord, 10... Light emitting element, 11
...Photodetector, 18...Glass fiber, 19...
...(metal) coating, 20...uncoated part, A...detection means, L...liquid level.
Claims (1)
から成る液体検出器において、前記液面検知セン
サを、前記液面に浸るように前記フロートに取付
けられ、液の種類によつて光伝送損失が変化する
光フアイバセンサと、この光フアイバセンサの光
伝送損失を検知する光損失検知手段と、この検知
手段と前記光フアイバセンサを接続する光フアイ
バケーブルとで構成したことを特徴とする液体検
出器。 In a liquid detector consisting of a liquid level detection sensor and a float provided on the liquid level, the liquid level detection sensor is attached to the float so as to be immersed in the liquid level, and optical transmission loss changes depending on the type of liquid. 1. A liquid detector comprising: an optical fiber sensor, an optical loss detecting means for detecting optical transmission loss of the optical fiber sensor, and an optical fiber cable connecting the detecting means and the optical fiber sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4940886U JPS62160352U (en) | 1986-03-31 | 1986-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4940886U JPS62160352U (en) | 1986-03-31 | 1986-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62160352U true JPS62160352U (en) | 1987-10-12 |
Family
ID=30871831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4940886U Pending JPS62160352U (en) | 1986-03-31 | 1986-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62160352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019191061A (en) * | 2018-04-26 | 2019-10-31 | 国立大学法人神戸大学 | Phase change monitoring method and device for material using optical fiber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5739316A (en) * | 1980-08-20 | 1982-03-04 | Showa Electric Wire & Cable Co Ltd | Liquid level detecting sensor |
| JPS5748477B2 (en) * | 1977-07-19 | 1982-10-16 |
-
1986
- 1986-03-31 JP JP4940886U patent/JPS62160352U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5748477B2 (en) * | 1977-07-19 | 1982-10-16 | ||
| JPS5739316A (en) * | 1980-08-20 | 1982-03-04 | Showa Electric Wire & Cable Co Ltd | Liquid level detecting sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019191061A (en) * | 2018-04-26 | 2019-10-31 | 国立大学法人神戸大学 | Phase change monitoring method and device for material using optical fiber |
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