JPS56154610A - Magnetic compass - Google Patents
Magnetic compassInfo
- Publication number
- JPS56154610A JPS56154610A JP5788180A JP5788180A JPS56154610A JP S56154610 A JPS56154610 A JP S56154610A JP 5788180 A JP5788180 A JP 5788180A JP 5788180 A JP5788180 A JP 5788180A JP S56154610 A JPS56154610 A JP S56154610A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic paths
- saturable magnetic
- alternating current
- saturable
- horizone
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 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
- G01C17/28—Electromagnetic compasses
- G01C17/30—Earth-inductor compasses
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5788180A JPS56154610A (en) | 1980-05-02 | 1980-05-02 | Magnetic compass |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5788180A JPS56154610A (en) | 1980-05-02 | 1980-05-02 | Magnetic compass |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56154610A true JPS56154610A (en) | 1981-11-30 |
JPS6216362B2 JPS6216362B2 (enrdf_load_stackoverflow) | 1987-04-13 |
Family
ID=13068323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5788180A Granted JPS56154610A (en) | 1980-05-02 | 1980-05-02 | Magnetic compass |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56154610A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH049185U (enrdf_load_stackoverflow) * | 1990-05-15 | 1992-01-27 |
-
1980
- 1980-05-02 JP JP5788180A patent/JPS56154610A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6216362B2 (enrdf_load_stackoverflow) | 1987-04-13 |
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