Deadweight dropping type wave source

Deadweight dropping type wave source

Debris ejector for a seismic vibrator

Decoupled borehole sensor

Deep water sound imploder

Determination of firing times of acoustic pulses

Determining the polarity of movement of an actuator mass in...

Device for applying pulsed radial stresses to the wall of a well

Device for coupling a receiver system with the wall of a well

Device for emitting acoustic waves in a liquid medium

Device for emitting acoustic waves in a liquid medium by implosi

Device for emitting mechanical waves

Device for generating acoustic shear waves in the earth

Device for generating acoustic waves by causing a falling mass t

Device for generating acoustic waves by implosion

Device for generating acoustic waves by means of a falling mass

Device for generating acoustic waves in a fluid by implosion

Device for generating acoustic waves in a liquid medium

Device for generating focused elastic waves in a material...

Device for generating in the ground both transverse and longitud