USA As Represented by Secretary of the Navy

Pgs Geophysical As

Totalforsvarets Forskningsinstitut

Mattias Fredrik Karlsson

Stig Rune Lennart Tenghamn

Ulf Peter Lindqvist

Ardeshir Ratan Bulsara

Rune Johan Magnus Mattsson

Luca Gammaitoni

Per Anders Davidsson

Peter Sigray

Peter Gunnar Krylstedt

John W C Robinson

A detector for a marine electromagnetic survey system includes a housing arranged to minimize turbulence when the housing is towed through a body of water, and to minimize motion of the housing in any direction other than the tow direction. The housing includes at least one of an electric field and a magnetic field sensing element associated therewith.

Low noise, towed electromagnetic system for subsurface exploration

A method of estimating target signals (dc or low frequency signals) by a dynamical fluxgate sensor and a low-power fluxgate magnetometer operating according to the method. The sensor is pre-biased with a periodic bias signal in the form of a superposition of a square wave and a triangular wave. The change in residence time statistics in the stable state of the sensor is analyzed for estimating the target signals.

Method of estimating target signals by a dynamical fluxgate sensor

Growing community of inventors

Bandhagen, Sweden

Mattias Fredrik Karlsson