FIELD: seismometry. SUBSTANCE: geophones are excited by stage of direct current with amplitude i, supply is disconnected, at least two values of amplitude of oscillations E are measured across output of geophone within limits of first moment of cutting off current of unidimensional oscillation. This of achievement of values of amplitudes are measured simultaneously and values of phase parameter for modes of periodic and aperiodic oscillations are found by specified formulas. EFFECT: improved authenticity of testing. 2 cl, 5 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TESTING ELECTRODYNAMIC SEISMOMETERS | 0 |
|
SU1469479A1 |
| METHOD OF CALIBRATING SEISMIC CHANNELS WITH RECORDING ONTO INTERMEDIATE CARRIER | 0 |
|
SU1755229A1 |
| METHOD OF DETERMINING ATTENUATION COEFFICIENT OF SEISMOMETER | 0 |
|
SU1430923A1 |
| METHOD OF DETERMINING CONVERSION FACTOR OF ELECTRODYNAMIC GEOPHONE | 0 |
|
SU1363109A1 |
| METHOD OF MEASURING MAGNETIC INDUCTION OF PERMANENT MAGNETS | 0 |
|
SU1755227A1 |
| METHOD OF OSCILLATORY CALIBRATION OF ELECTRODYNAMIC GEOPHONES | 0 |
|
SU1651255A1 |
| METHOD OF ADJUSTING ATTENUATION OF ELECTRODYNAMIC SEISMOMETER | 0 |
|
SU1469482A1 |
| METHOD OF DETERMINING REDUCTION FACTOR OF MOVING-COIL SEISMOMETER WITH SHUNT | 0 |
|
SU1569762A1 |
| DEVICE FOR PHASE-FREQUENCY CALIBRATING OF GEOPHONE CHANNELS | 0 |
|
SU1242876A1 |
| METHOD OF CHECKING INDUCTION-TYPE GEOPHONES | 0 |
|
SU1122993A1 |
