JPS62184437U - - Google Patents
Info
- Publication number
- JPS62184437U JPS62184437U JP7188486U JP7188486U JPS62184437U JP S62184437 U JPS62184437 U JP S62184437U JP 7188486 U JP7188486 U JP 7188486U JP 7188486 U JP7188486 U JP 7188486U JP S62184437 U JPS62184437 U JP S62184437U
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- optical fiber
- light source
- face
- receiving element
- 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 8
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7188486U JPS62184437U (en]) | 1986-05-15 | 1986-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7188486U JPS62184437U (en]) | 1986-05-15 | 1986-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62184437U true JPS62184437U (en]) | 1987-11-24 |
Family
ID=30914841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7188486U Pending JPS62184437U (en]) | 1986-05-15 | 1986-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62184437U (en]) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473085A (en) * | 1977-11-22 | 1979-06-12 | Fujitsu Ltd | Earthquake sensor using optical fibers |
-
1986
- 1986-05-15 JP JP7188486U patent/JPS62184437U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473085A (en) * | 1977-11-22 | 1979-06-12 | Fujitsu Ltd | Earthquake sensor using optical fibers |