The GraviProbe Rheology is a free fall impact instrument,
analyzing the underwater sediment layers during intrusion.
Under its own weight it accelerates and penetrates fluid and
consolidated mud layers.
The rheological conditions of the soil layers are determining
the probe’s dynamical behavior. The data acquired from on
board accelerometers, inclinometers and pressure sensors
is feeding a dynamical model which determines the
rheological parameters (dynamic cone penetration
resistance and dynamic undrained shear strength).
As a result the GraviProbe Rheology is able to distinguish
the depth of the fluid mud and consolidated mud layers very
accurately, even in gassy environments.
The high sensor data acquisition rates of up to 2 kHz in
combination with a low drag housing results in the highest
quality profiles at drop rates over 7 m/s. Due to its light
weight the probe can be operated manually from a small
vessel, platform or quay and limits the operational costs.
Fast and light rheological
Developed to capture high quality
rheological profiles of fluid and
consolidated mud layers