FIELD: seismology. SUBSTANCE: inertial mass in the form of permanent magnet is fixed in geophone body by means of tension member, V-shaped member, and rod. The inertial mass is movable inside ferromagnetic element and support cylinder fastened to the body. The ferromagnetic element is mounted for regulation of the clearance between it and the magnet. Displacement transducer is fastened to the body. EFFECT: higher rate of earthquake forecast accuracy. 2 cl, 2 dwg
Title | Year | Author | Number |
---|---|---|---|
SEISMIC DETECTOR | 1990 |
|
RU2045080C1 |
GEOPHONE | 1992 |
|
RU2018155C1 |
GEOPHONE | 1992 |
|
RU2047188C1 |
GEOPHONE | 1992 |
|
RU2047189C1 |
SEISMIC DETECTOR | 1992 |
|
RU2046375C1 |
SOURCE RECEIVER | 0 |
|
SU1436079A1 |
DYNAMICALLY ADJUSTED GYRO | 1999 |
|
RU2178142C2 |
ELECTROMAGNETIC DISPLACEMENT TRANSDUCER | 1991 |
|
RU2019787C1 |
DIE SET FOR EXPANDING HOLLOW BLANKS | 1991 |
|
RU2083307C1 |
ELECTRODYNAMIC GEOPHONE | 0 |
|
SU855580A1 |
Authors
Dates
1994-07-30—Published
1990-05-29—Filed