JP2536985Y2 - 開閉装置の異常検出装置 - Google Patents
開閉装置の異常検出装置Info
- Publication number
- JP2536985Y2 JP2536985Y2 JP1990109334U JP10933490U JP2536985Y2 JP 2536985 Y2 JP2536985 Y2 JP 2536985Y2 JP 1990109334 U JP1990109334 U JP 1990109334U JP 10933490 U JP10933490 U JP 10933490U JP 2536985 Y2 JP2536985 Y2 JP 2536985Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- value
- conversion
- phase
- 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 - Lifetime
Links
- 230000005856 abnormality Effects 0.000 title claims description 19
- 238000001514 detection method Methods 0.000 claims description 45
- 238000006243 chemical reaction Methods 0.000 claims description 42
- 230000010354 integration Effects 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 18
- 230000007257 malfunction Effects 0.000 description 13
- 230000003287 optical effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990109334U JP2536985Y2 (ja) | 1990-10-17 | 1990-10-17 | 開閉装置の異常検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990109334U JP2536985Y2 (ja) | 1990-10-17 | 1990-10-17 | 開閉装置の異常検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0464938U JPH0464938U (enrdf_load_html_response) | 1992-06-04 |
| JP2536985Y2 true JP2536985Y2 (ja) | 1997-05-28 |
Family
ID=31856520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990109334U Expired - Lifetime JP2536985Y2 (ja) | 1990-10-17 | 1990-10-17 | 開閉装置の異常検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536985Y2 (enrdf_load_html_response) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7382567B2 (en) | 2005-05-09 | 2008-06-03 | Analog Devices, Inc. | Accelerometer-based differential free fall detection system, apparatus, and method and disk drive protection mechanism employing same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5425450A (en) * | 1977-07-29 | 1979-02-26 | Hitachi Ltd | Protective relay |
| JPS6059915A (ja) * | 1983-09-09 | 1985-04-06 | 株式会社日立製作所 | 事故電流保護装置および事故電流保護システム |
| JPS6343515A (ja) * | 1986-08-07 | 1988-02-24 | オムロン株式会社 | 故障検出回路 |
-
1990
- 1990-10-17 JP JP1990109334U patent/JP2536985Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7382567B2 (en) | 2005-05-09 | 2008-06-03 | Analog Devices, Inc. | Accelerometer-based differential free fall detection system, apparatus, and method and disk drive protection mechanism employing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0464938U (enrdf_load_html_response) | 1992-06-04 |
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