Patents
Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929)
12/1996
12/03/1996US5581024 Downhole depth correlation and computation apparatus and methods for combining multiple borehole measurements
12/03/1996US5580084 System and method for controlling vehicle safety device
11/1996
11/28/1996WO1996037727A1 Pipeline vehicle
11/28/1996WO1996037678A1 Locating a discrete in-ground boring device
11/28/1996DE19518973A1 Method for measuring depth of ferromagnetic and/or other metallic objects buried beneath surface of earth
11/27/1996EP0744631A1 A body sensing device
11/27/1996EP0627106B1 Method and device for electronic identification
11/27/1996CN2241347Y Solid dip compass sensor
11/26/1996US5578926 Locating system for finding magnetic objects in the ground including improved means for accurate correlation of measured magnetometer probe signals to probe positions
11/26/1996US5578920 Compensation of interfering fields in NMR measurements in the earth's magnetic field
11/23/1996CA2173193A1 Pipeline vehicle
11/21/1996WO1996030771A3 Narrow field electromagnetic sensor system and method
11/21/1996DE19611879A1 Bandpaßfilter für Vorverstärker Bandpass filter for preamplifier
11/21/1996DE19518420A1 Underground mapping circuit for geophysical prospecting
11/20/1996EP0743540A2 System for detecting the presence of foreign objects inside robbery-prevention security antechambers
11/20/1996EP0743539A2 Method and arrangement of detectors for electromagnetic detection of metallic objects
11/20/1996EP0742906A1 Miniaturized planar-design coil assembly for the detection of ferromagnetic materials
11/20/1996EP0624241B1 Method for measuring position and angle
11/20/1996EP0560893B1 System for nmr logging a well during the drilling thereof
11/19/1996US5576973 Apparatus and method for obtaining geographical positional data for an object located underground
11/19/1996US5576693 Method and device for remote sensing of objects
11/19/1996US5576627 Narrow field electromagnetic sensor system and method
11/19/1996US5576624 Pulse induction time domain metal detector
11/19/1996US5576623 Gradient system for an NMR tomograph
11/19/1996US5576621 Hinged metal detection cover for a receptacle
11/19/1996CA2177320A1 Method and probe arrangement for the electromagnetic detection of metal objects
11/12/1996US5574374 Method and apparatus for interrogating a borehole and surrounding formation utilizing digitally controlled oscillators
11/12/1996US5574371 Method and apparatus for measuring mud resistivity in a wellbore including a probe having a bottom electrode for propagating a current from and to the bottom electrode in a direction approximately parallel to a longitudinal axis of the probe
11/06/1996EP0740822A1 Metal detection system
11/06/1996EP0740800A1 Process and device for detecting vital functions in living bodies
11/06/1996EP0740799A1 Process and device for sensing living bodies
11/05/1996US5572309 Image forming apparatus with impedance detection
11/05/1996US5572123 Apparatus and method for on-line inspection of electrically conductive food products using liquid electrolyte
11/05/1996US5572121 Metal detector including a metal screening for producing a secondary magnetic field to reduce the metal free zone
11/05/1996US5571977 Process and device for inspecting and/or servicing and repairing subsidiary canals branching off from a main drain
10/1996
10/31/1996DE19515666A1 Radar-based object detection and classification method
10/30/1996EP0740279A1 Vehicle presence detection system
10/30/1996EP0665958A4 Method of determining formation resistivity utilizing combined measurements of inductive and galvanic logging instruments.
10/29/1996US5570303 System for collecting oceanographic data from a moving vessel
10/29/1996US5570024 Determining resistivity of a formation adjacent to a borehole having casing using multiple electrodes and with resistances being defined between the electrodes
10/24/1996WO1996033426A1 A method and measurement equipment for mapping the geology in a subterranean formation
10/23/1996EP0738366A1 Method of creating a borehole in an earth formation
10/17/1996WO1996032829A1 Compact transponder and method for making same
10/17/1996WO1996032060A1 Catheter depth, position and orientation location system
10/17/1996DE19522166C1 Optical switch, e.g. for explosion protection
10/17/1996CA2218093A1 Catheter depth, position and orientation location system
10/17/1996CA2217956A1 Compact transponder and method for making same
10/16/1996EP0737986A1 Magnetic field annealing of amorphous material for use in ferromagnetic tag
10/15/1996US5565849 Self-biased magnetostrictive element for magnetomechanical electronic article surveillance systems
10/15/1996US5565775 Producible fluid volumes in porous media determined by pulsed field gradient nuclear magnetic resonance
10/15/1996US5565770 Linear position sensor including a first open housing having a reciprocal, biased magnet holder and magnet and removable second housing having a hall sensor
10/15/1996US5565624 Method of determining variations in the morphology of a borehole
10/15/1996US5564193 Method of correcting for axial and transverse error components in magnetometer readings during wellbore survey operations
10/13/1996CA2684451A1 Continuous process and reel-to-reel transport apparatus for transverse magnetic field annealing of amorphous material used in an eas marker
10/10/1996WO1996031790A1 Spatial magnetic interrogation
10/10/1996WO1996031789A1 Method and apparatus for detection of diastrophism
10/08/1996US5563514 Method and apparatus for determining formation resistivity in a cased well using three electrodes arranged in a wheatstone bridge
10/08/1996US5563513 Electromagnetic imaging device and method for delineating anomalous resistivity patterns associated with oil and gas traps
10/08/1996US5563512 Well logging apparatus having a removable sleeve for sealing and protecting multiple antenna arrays
10/03/1996WO1996030913A2 System and method for contraband detection using nuclear quadrupole resonance
10/03/1996WO1996030771A2 Narrow field electromagnetic sensor system and method
10/03/1996WO1996023236A3 Device for the detection of objects, especially explosive objects, lying in the earth
10/02/1996EP0735385A2 Compensation for start-up transients
10/02/1996EP0735384A2 Adaptive thresholding for metal detection
10/02/1996EP0735377A2 Metal detector coil inductance testing
10/02/1996EP0735376A2 Metal detector coil resistance testing
10/02/1996EP0734534A1 Method of and apparatus for detection, and method of configuring such apparatus
10/02/1996EP0535139B1 An improved system for locating concealed underground objects using digital filtering
10/02/1996CN2236661Y Multifunctional electric measuring meter with sound and light indicators
10/02/1996CN1132470A Magnetic determination of position and orientation
10/01/1996US5561430 Inductor/antenna for a recognition system
09/1996
09/26/1996WO1996029618A1 Process and device for producing a transponder unit and transponder unit thus produced
09/26/1996WO1996029617A1 Determining a parameter in a physical system
09/26/1996WO1996029616A1 Determining a parameter of a component in a composition
09/26/1996WO1996029615A1 Locating objects
09/26/1996WO1996029614A1 Open permanent magnet structure for generating highly uniform field
09/26/1996DE19509999A1 Verfahren und Vorrichtung zur Herstellung einer Transpondereinheit sowie Transpondereinheit Method and device for producing a transponder unit and transponder unit
09/26/1996CA2215935A1 A process and a device for the production of a transponder unit and a transponder unit
09/25/1996EP0733916A2 Portable search apparatus
09/25/1996EP0733915A2 Method and apparatus for metal detection using a coil arrangement with several separate controllable regions
09/25/1996EP0733562A1 Device for automatically positioning a swivel arm
09/25/1996EP0733218A1 Sensor system for detecting, locating and identifying metal objects
09/24/1996US5558091 Magnetic determination of position and orientation
09/18/1996EP0732601A1 Standby sensor with long autonomy
09/18/1996EP0732600A2 Active impulse magnetometer
09/18/1996EP0732599A2 Inductive transmitters for conductor location
09/18/1996EP0732595A2 Magnetic field detector
09/18/1996EP0731929A1 Method of detecting an electrically conducting object, and a device for carrying out the method
09/18/1996EP0669007A4 Movable solenoid source in target well for location measurement.
09/17/1996US5557206 Apparatus and method for detecting a weak induced magnetic field by means of two concentric transmitter loops
09/17/1996US5557201 Pulsed nuclear magnetism tool for formation evaluation while drilling
09/17/1996US5557200 Nuclear magnetic resonance determination of petrophysical properties of geologic structures
09/17/1996US5557085 Method and device for electronic identification
09/12/1996WO1996027803A1 Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance
09/12/1996DE19507654A1 Quantitatively checking metal parts in an object esp. document representing value e.g. banknote
09/11/1996EP0731363A2 Neural network interpretation of aeromagnetic data
09/11/1996EP0730745A1 Detection of counterfeit articles
09/11/1996EP0730733A1 Process for detecting totally or partially hidden non-homogeneities by microwave radiation
09/11/1996EP0471858B1 System for detecting the position of an underground excavator
09/11/1996EP0437474B1 Supervision and control of airport lighting and ground movements