173242 ⎘
Seismology; Seismic or acoustic prospecting or detecting; Receiving elements for seismic signals; Arrangements or adaptations of receiving elements; Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements; Geophones with adaptable orientation, e.g. gimballed
OMNI-DIRECTIONAL GEOPHONE WITH 10 HERTZ NATURAL FREQUENCY
#2Computing rotation data using a gradient of translational data
#3Triaxial accelerometer assembly and in-situ calibration method for improved geodetic and seismic measurements
#4Computing rotation data using a gradient of translational data
#5Computing a gradient based on differences of plural pairs of particle motion sensors
#6Multicomponent marine geophysical data gathering system