Skogman
Carl Joel Gustav Skogman, Hagersten SE
Patent application number | Description | Published |
---|---|---|
20110279120 | Electromagnetic survey systems and methods with rotation-corrected motion compensation - A disclosed electromagnetic survey system includes one or more streamer(s) having multiple electromagnetic sensors and motion sensing units. Each motion sensing unit has one or more accelerometer(s) to measure motion perpendicular to an axis of the streamer, and a rotation sensor to measure rotation about the axis. The measurements of the accelerometer are adjusted based on measurements from the rotation sensor. The survey system also includes one or more processor(s) that determine, for each electromagnetic sensor, a motion signal based on the adjusted measurements. A described electromagnetic survey method includes processing acceleration and rotational motion measurements to obtain an orientation of motion sensing units as a function of time. The measured acceleration is manipulated based on the orientation to obtain one or more velocity signal(s) for each motion sensing unit. Interpolation is performed on the velocity signals to determine at least one velocity signal for each electromagnetic sensor. | 11-17-2011 |
Carl Joel Gustav Skogman, Jarfalla SE
Patent application number | Description | Published |
---|---|---|
20110291658 | High resolution three dimensional electromagnetic survey method - A method for electromagnetic surveying below the bottom of a body of water includes deploying a plurality of nodal recording devices in a selected pattern on the water bottom. An electromagnetic transmitter is towed in the water. At least one electromagnetic sensor streamer is concurrently towed in the water. The electromagnetic transmitter is actuated at selected times and signals detected by sensors in the nodal recording devices and in the at least one streamer are recorded. | 12-01-2011 |
20130229184 | Stationary Source for Marine Electromagnetic Surveying - Disclosed are methods and systems for using electromagnetic sources that are substantially stationary in a body of water while electromagnetic field signals are detected with electromagnetic sensors towed through the body of water. An embodiment discloses an apparatus comprising: a vessel; a first electromagnetic source coupled to the vessel and configured to have a dipole moment oriented in a first direction; and a second electromagnetic source coupled to the vessel and configured to have a dipole moment oriented in a second direction, wherein the second direction is generally orthogonal to the first direction. Another embodiment discloses a system comprising: a sensor streamer configured for towing in a body of water, wherein the sensor streamer comprises a plurality of electromagnetic sensors disposed at spaced apart positions; and an electromagnetic source assembly configured for deployment at a substantially stationary position in the body of water. | 09-05-2013 |
20130241559 | Electromagnetic Receiver Assembly for Marine Electromagnetic Surveying - Disclosed is an electromagnetic receiver assembly for marine electromagnetic surveying, the electromagnetic receiver assembly comprising an elongated housing and receiver electrodes mounted at separate points along the elongated housing. An embodiment may include an electromagnetic receive assembly that includes an elongated housing, wherein the elongated housing defines an interior chamber. The electromagnetic receiver assembly may further include receiver electrodes configured to be in contact with water when in operation, wherein the receiver electrodes are mounted at separate points along the elongated housing. The electromagnetic receiver assembly may further include sensor electronics disposed in the interior chamber and electrically coupled to the receiver electrodes. The electromagnetic receiver assembly may be configured for deployment on or near a bottom of a body of water. | 09-19-2013 |
Gary Skogman, Rush City, MN US
Patent application number | Description | Published |
---|---|---|
20160106086 | FISHING ALARM APPARATUS - Fishing alarm apparatuses are described herein. One apparatus can include an electrical circuit for receiving power from a power source, a set of contacts that, when they are connected to each other, cause an alarm component to be actuated, a shut off mechanism to turn off the actuated alarm component, a mechanism to turn on a light for illumination of an area around the apparatus, and wherein a fishing line is held between the set of contacts while waiting for an animal to pull on the line and remove it from between the set of contacts and once removed, the set of contacts connect with each other to cause the alarm component to be actuated. | 04-21-2016 |
Joel Skogman, Jarfalla SE
Patent application number | Description | Published |
---|---|---|
20130148468 | NOISE REDUCTION SYSTEMS AND METHODS FOR A GEOPHYSICAL SURVEY CABLE - A disclosed geophysical survey cable includes a signal amplifier coupled between two electrodes spaced apart along the length of the geophysical survey cable (the electrodes being coupled to the signal amplifier by a first conductor pair), and a noise amplifier coupled to a second conductor pair positioned substantially parallel to the first conductor pair. The geophysical survey cable further includes a combiner that combines a noise signal provided by the noise amplifier with a sensor signal provided by the signal amplifier to provide a sensor signal with a reduced noise component. | 06-13-2013 |
20140359265 | FAST MODELING USING INTERPOLATED STARTING POINTS - Techniques are disclosed relating to forward and inverse modeling of geophysical formations using interpolation. In one embodiment, a method includes generating a system of equations based on a background model that describes a geophysical formation. In this embodiment, the method also includes generating a first set of solutions for the system of equations using an initial set of base points from geophysical survey data obtained from the geophysical formation and interpolating, using the first set of solutions, to produce a set of solution approximations for a second set of data points from the geophysical survey data. In this embodiment, the method also includes generating a model of the geophysical formation, using the second set of data points and the set of solution approximations, where the model includes a second set of solutions for the system of equations. | 12-04-2014 |
Joel Skogman, Stockholm SE
Patent application number | Description | Published |
---|---|---|
20130318026 | ADAPTIVE COMPUTATIONAL GRID FOR INVERSE PROBLEMS - Techniques are described for determining an optimal resolution for a grid to be used in solving inverse problems. Reference physical fields may be computed based on model data for the computational grid at a starting resolution. Cells in the computational grid may be split in a plurality of iterations to provide finer resolution. The model data may be perturbed by introducing different physical property values to the cells. The physical fields may be calculated based on the perturbed model data. A comparison may be made between the reference physical fields and the calculated physical fields based on the perturbed model data for the purpose of determining whether cell splitting should continue. | 11-28-2013 |