BE450156A - - Google Patents
Info
- Publication number
- BE450156A BE450156A BE450156DA BE450156A BE 450156 A BE450156 A BE 450156A BE 450156D A BE450156D A BE 450156DA BE 450156 A BE450156 A BE 450156A
- Authority
- BE
- Belgium
- Prior art keywords
- pedal
- pressure
- passage
- signaling
- piezoelectric crystal
- Prior art date
Links
- 239000013078 crystal Substances 0.000 claims description 11
- 230000011664 signaling Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/02—Electric devices associated with track, e.g. rail contacts
- B61L1/025—Electric devices associated with track, e.g. rail contacts actuated by variation of resistance or by piezoelectricity
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE450156A true BE450156A (it) |
Family
ID=105301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE450156D BE450156A (it) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE450156A (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2206224A1 (fr) * | 1972-11-13 | 1974-06-07 | Acec | Pedale, en particulier pedale de chemin de fer. |
-
0
- BE BE450156D patent/BE450156A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2206224A1 (fr) * | 1972-11-13 | 1974-06-07 | Acec | Pedale, en particulier pedale de chemin de fer. |
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