DE246656C - - Google Patents
Info
- Publication number
- DE246656C DE246656C DENDAT246656D DE246656DA DE246656C DE 246656 C DE246656 C DE 246656C DE NDAT246656 D DENDAT246656 D DE NDAT246656D DE 246656D A DE246656D A DE 246656DA DE 246656 C DE246656 C DE 246656C
- Authority
- DE
- Germany
- Prior art keywords
- magnetic needle
- selenium cells
- compass
- ship
- ammeter
- 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
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 8
- 229910052711 selenium Inorganic materials 0.000 claims description 8
- 239000011669 selenium Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 208000036829 Device dislocation Diseases 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
- G01C17/20—Observing the compass card or needle
- G01C17/26—Observing the compass card or needle using electric pick-offs for transmission to final indicator, e.g. photocell
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE246656C true DE246656C (enrdf_load_stackoverflow) |
Family
ID=505514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT246656D Active DE246656C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE246656C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT246656D patent/DE246656C/de active Active
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