DE224677C - - Google Patents
Info
- Publication number
- DE224677C DE224677C DENDAT224677D DE224677DA DE224677C DE 224677 C DE224677 C DE 224677C DE NDAT224677 D DENDAT224677 D DE NDAT224677D DE 224677D A DE224677D A DE 224677DA DE 224677 C DE224677 C DE 224677C
- Authority
- DE
- Germany
- Prior art keywords
- monitoring device
- movement
- signal
- mercury
- contact
- 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.)
- Active
Links
- 238000012806 monitoring device Methods 0.000 claims description 13
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 9
- 229910052753 mercury Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L13/00—Operation of signals from the vehicle or by the passage of the vehicle
- B61L13/04—Operation of signals from the vehicle or by the passage of the vehicle using electrical or magnetic interaction between vehicle and track, e.g. by conductor circuits using special means or special conductors
- B61L13/042—Operation of signals from the vehicle or by the passage of the vehicle using electrical or magnetic interaction between vehicle and track, e.g. by conductor circuits using special means or special conductors using isolated rail sections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE224677C true DE224677C (enrdf_load_stackoverflow) |
Family
ID=485390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT224677D Active DE224677C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE224677C (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053706A (en) * | 1987-07-06 | 1991-10-01 | Mitsubishi Denki Kabushiki Kaisha | Compact low-distortion squid magnetometer |
| US5218297A (en) * | 1988-02-05 | 1993-06-08 | Hitachi, Ltd. | Superconductive quantum interference device in high temperature environments having reduced inductance and improved thermal noise response |
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0
- DE DENDAT224677D patent/DE224677C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053706A (en) * | 1987-07-06 | 1991-10-01 | Mitsubishi Denki Kabushiki Kaisha | Compact low-distortion squid magnetometer |
| US5218297A (en) * | 1988-02-05 | 1993-06-08 | Hitachi, Ltd. | Superconductive quantum interference device in high temperature environments having reduced inductance and improved thermal noise response |