SE8002077L - Metanordning for bestemning av jord-refraktion - Google Patents
Metanordning for bestemning av jord-refraktionInfo
- Publication number
- SE8002077L SE8002077L SE8002077A SE8002077A SE8002077L SE 8002077 L SE8002077 L SE 8002077L SE 8002077 A SE8002077 A SE 8002077A SE 8002077 A SE8002077 A SE 8002077A SE 8002077 L SE8002077 L SE 8002077L
- Authority
- SE
- Sweden
- Prior art keywords
- refraction
- geodesic
- measuring
- sound
- time difference
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD21164079A DD142384A1 (de) | 1979-03-19 | 1979-03-19 | Messanordnung zur bestimmung der terrestrischen refraktion |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8002077L true SE8002077L (sv) | 1980-09-20 |
Family
ID=5517209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8002077A SE8002077L (sv) | 1979-03-19 | 1980-03-17 | Metanordning for bestemning av jord-refraktion |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH647078A5 (de) |
DD (1) | DD142384A1 (de) |
DE (1) | DE3010058A1 (de) |
SE (1) | SE8002077L (de) |
-
1979
- 1979-03-19 DD DD21164079A patent/DD142384A1/de not_active IP Right Cessation
-
1980
- 1980-03-15 DE DE19803010058 patent/DE3010058A1/de not_active Withdrawn
- 1980-03-17 SE SE8002077A patent/SE8002077L/ not_active Application Discontinuation
- 1980-03-19 CH CH216780A patent/CH647078A5/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3010058A1 (de) | 1980-10-02 |
DD142384A1 (de) | 1980-06-18 |
CH647078A5 (en) | 1984-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8002077-9 |