JPH044319Y2 - - Google Patents
Info
- Publication number
- JPH044319Y2 JPH044319Y2 JP18499484U JP18499484U JPH044319Y2 JP H044319 Y2 JPH044319 Y2 JP H044319Y2 JP 18499484 U JP18499484 U JP 18499484U JP 18499484 U JP18499484 U JP 18499484U JP H044319 Y2 JPH044319 Y2 JP H044319Y2
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- light
- test
- emitting element
- 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.)
- Expired
Links
- 238000012360 testing method Methods 0.000 claims description 53
- 238000005070 sampling Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000000779 smoke Substances 0.000 description 8
- 238000012790 confirmation Methods 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18499484U JPH044319Y2 (h) | 1984-12-07 | 1984-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18499484U JPH044319Y2 (h) | 1984-12-07 | 1984-12-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61115292U JPS61115292U (h) | 1986-07-21 |
| JPH044319Y2 true JPH044319Y2 (h) | 1992-02-07 |
Family
ID=30742476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18499484U Expired JPH044319Y2 (h) | 1984-12-07 | 1984-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044319Y2 (h) |
-
1984
- 1984-12-07 JP JP18499484U patent/JPH044319Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61115292U (h) | 1986-07-21 |
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