FIELD: geodesy.
SUBSTANCE: bench mark comprises invar tube of zero buoyancy secured in well without a contact with the walls so that local motions of surface layer of earth cake of non-tectonic nature do not affect the bench mark position.
EFFECT: enhanced precision.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MULTICOMPONENT WELL STRAIN METER | 2004 |
|
RU2282143C2 |
| WIRE EXTENSOMETER | 2004 |
|
RU2282138C2 |
| METHOD OF PREDICTING STRONG EARTHQUAKES | 2004 |
|
RU2282220C2 |
| METHOD OF DETERMINATION OF CHANGES IN STRESS-DEFORMED STATE OF EARTH'S CRUST | 2006 |
|
RU2316027C1 |
| TWO-COORDINATE STRING TILT INDICATOR | 2004 |
|
RU2287777C2 |
| METHOD FOR EARTHQUAKE PREDICTION | 2006 |
|
RU2325673C1 |
| TRAVEL CAPACITIVE CONVERTER | 2004 |
|
RU2281457C2 |
| HYDROSTATIC LEVEL | 2004 |
|
RU2282144C2 |
| GAS-LIQUID GRAVIMETER | 2004 |
|
RU2282218C2 |
| TWO-DIMENSIONAL DEFORMATION RECORDER | 0 |
|
SU1640544A1 |
