JPS62189630U - - Google Patents
Info
- Publication number
- JPS62189630U JPS62189630U JP7703286U JP7703286U JPS62189630U JP S62189630 U JPS62189630 U JP S62189630U JP 7703286 U JP7703286 U JP 7703286U JP 7703286 U JP7703286 U JP 7703286U JP S62189630 U JPS62189630 U JP S62189630U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- light
- optical fiber
- temperature
- monitoring device
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 7
- 238000012806 monitoring device Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Radiation Pyrometers (AREA)
Description
図面は本考案に係る温度監視装置の一実施例を
示し、第１図はその構成図、第２図は液晶を電力
ケーブルの接続部に取り付けた状態の説明図であ
る。
符号１は液晶、２，３は凸レンズ、４，５は光
フアイバ、６は発光素子、７は受光素子、８は検
出回路、９は温度検出端セツト、Ｃは電力ケーブ
ル、Ｊは接続部である。
The drawings show an embodiment of the temperature monitoring device according to the present invention, and FIG. 1 is a configuration diagram thereof, and FIG. 2 is an explanatory diagram of a state in which a liquid crystal is attached to a connecting portion of a power cable. 1 is a liquid crystal, 2 and 3 are convex lenses, 4 and 5 are optical fibers, 6 is a light emitting element, 7 is a light receiving element, 8 is a detection circuit, 9 is a temperature detection terminal set, C is a power cable, and J is a connection part. be.
Claims (1)
両側にそれぞれ端部を配置した第１、第２の光フ
アイバと、特定の波長領域光を前記第１の光フア
イバの他端部から送り込む発光素子と、該第１の
光フアイバにより送出され前記液晶を介して前記
第２の光フアイバの端部に入射した光を前記第２
の光フアイバの他端部から受光する受光素子と、
該受光素子の出力により前記液晶が変色したこと
を検知する検知回路とから成ることを特徴とする
温度監視装置。 ２ 前記限界温度以上の温度範囲において前記液
晶は前記特定の波長領域光を透過するものとした
実用新案登録請求の範囲第１項に記載の温度監視
装置。 ３ 限界温度以上の温度範囲において前記液晶は
前記特定の波長領域光を遮光するものとした実用
新案登録請求の範囲第１項に記載の温度監視装置
。[Claims for Utility Model Registration] 1. A liquid crystal that changes color at a critical temperature, first and second optical fibers having ends disposed on both sides of the liquid crystal, and a method for transmitting light in a specific wavelength range to the first optical fiber. A light emitting element is sent from the other end, and light that is sent out by the first optical fiber and enters the end of the second optical fiber via the liquid crystal is sent to the second optical fiber.
a light receiving element that receives light from the other end of the optical fiber;
A temperature monitoring device comprising a detection circuit that detects that the liquid crystal has changed color based on the output of the light receiving element. 2. The temperature monitoring device according to claim 1, wherein the liquid crystal transmits the light in the specific wavelength range in a temperature range equal to or higher than the limit temperature. 3. The temperature monitoring device according to claim 1, wherein the liquid crystal blocks light in the specific wavelength range in a temperature range above a limit temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7703286U JPS62189630U (en) | 1986-05-23 | 1986-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7703286U JPS62189630U (en) | 1986-05-23 | 1986-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189630U true JPS62189630U (en) | 1987-12-02 |
Family
ID=30924660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7703286U Pending JPS62189630U (en) | 1986-05-23 | 1986-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189630U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54139778A (en) * | 1978-04-21 | 1979-10-30 | Mitsubishi Electric Corp | Photosensor |
| JPS56115930A (en) * | 1980-02-18 | 1981-09-11 | Mitsubishi Electric Corp | Temperature-detecting device |
-
1986
- 1986-05-23 JP JP7703286U patent/JPS62189630U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54139778A (en) * | 1978-04-21 | 1979-10-30 | Mitsubishi Electric Corp | Photosensor |
| JPS56115930A (en) * | 1980-02-18 | 1981-09-11 | Mitsubishi Electric Corp | Temperature-detecting device |
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