JPH0381234U - - Google Patents
Info
- Publication number
- JPH0381234U JPH0381234U JP14063189U JP14063189U JPH0381234U JP H0381234 U JPH0381234 U JP H0381234U JP 14063189 U JP14063189 U JP 14063189U JP 14063189 U JP14063189 U JP 14063189U JP H0381234 U JPH0381234 U JP H0381234U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- thin metal
- metal tube
- barbed
- iron wire
- 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 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Wire Processing (AREA)
Description
第１図は本考案に係る光フアイバ入り有刺鉄線
の一実施例の側面図、第２図は本実施例で用いて
いる光フアイバ入り金属細径管の一例を示す斜視
図、第３図は本実施例の光フアイバ入り有刺鉄線
における布設状態の一例を示す正面図、第４図は
レーリー散乱の測定装置の一例を示すブロツク図
、第５図はレーリー散乱光のパワー量と光フアイ
バの長さとの関係を示す特性図、第６図は本実施
例の光フアイバ入り有刺鉄線における布設状態の
他の例を示す正面図である。
１……光フアイバ入り有刺鉄線、２……光フア
イバ、３……金属細径管、４……鉄線、４ａ……
刺部、５……支柱、８……光源、９……方向性結
合器、１０……信号処理器、１１……デイスプレ
イ。
Fig. 1 is a side view of one embodiment of the barbed wire containing optical fiber according to the present invention, Fig. 2 is a perspective view showing an example of a thin metal tube containing optical fiber used in this embodiment, and Fig. 3. 4 is a block diagram showing an example of a Rayleigh scattering measuring device, and FIG. 5 is a diagram showing the power amount of Rayleigh scattered light and the optical fiber. FIG. 6 is a front view showing another example of the installation state of the optical fiber-containing barbed wire of this embodiment. 1...Barbed wire with optical fiber, 2...Optical fiber, 3...Metal small diameter tube, 4...Iron wire, 4a...
Thorn, 5... Support, 8... Light source, 9... Directional coupler, 10... Signal processor, 11... Display.
Claims (1)
前記鉄線により前記光フアイバ入り金属細径管の
長手方向に所定間隔で刺部が設けられていること
を特徴とする光フアイバ入り有刺鉄線。 Iron wire is attached to a thin metal tube containing optical fiber,
A barbed wire containing an optical fiber, characterized in that the iron wire is provided with barbed portions at predetermined intervals in the longitudinal direction of the thin metal tube containing the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14063189U JPH0381234U (en) | 1989-12-06 | 1989-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14063189U JPH0381234U (en) | 1989-12-06 | 1989-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0381234U true JPH0381234U (en) | 1991-08-20 |
Family
ID=31687584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14063189U Pending JPH0381234U (en) | 1989-12-06 | 1989-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0381234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006172339A (en) * | 2004-12-20 | 2006-06-29 | Comsec:Kk | Intrusion detection sensor and intrusion detection system |
-
1989
- 1989-12-06 JP JP14063189U patent/JPH0381234U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006172339A (en) * | 2004-12-20 | 2006-06-29 | Comsec:Kk | Intrusion detection sensor and intrusion detection system |