Patents
Sitemap › G01 - Measuring; Testing › G01V - Geophysics; Gravitational measurements; Detecting masses or objects; Tags › G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929)
11/1999
11/16/1999CA2137978C Liquid sensing circuit
11/11/1999WO1999057557A1 Inanimate entity location method by using dielectrophoresis
11/10/1999EP0954760A2 Magnetometer and dielectrometer detection of subsurface objects
11/09/1999US5983163 Method for computing dip of earth formations from wellbore image data
11/09/1999US5982180 Metal detection system and process using a high voltage to produce a visible electrical discharge
11/03/1999EP0830566A4 Light beam range finder
11/02/1999US5977768 Nuclear magnetic resonance logging with azimuthal resolution
10/1999
10/28/1999WO1999054759A1 Porosity and permeability measurement of underground formations containing crude oil, using epr response data
10/28/1999WO1999054747A1 Magnetic gradient field projection
10/28/1999DE19817953A1 Markiervorrichtung Marking
10/28/1999CA2329190A1 Porosity and permeability measurement of underground formations containing crude oil, using epr response data
10/28/1999CA2329006A1 Magnetic gradient field projection
10/27/1999EP0952465A2 Marking device
10/27/1999EP0952464A2 Method of locating a submarine cable and signal-waveform therefor
10/27/1999EP0951613A1 Method for formation evaluation while drilling
10/26/1999US5973595 Body cavity metal detection system
10/26/1999US5973417 Circuit arrangement for a sensor element
10/20/1999EP0950199A1 Apparatus for sensing vehicles
10/20/1999CN1232187A Method and apparatus for natural electromagnetic radiation technology
10/19/1999US5969610 Method of detecting labels with amorphous magneto-elastical tapes
10/19/1999US5969528 Dual field metal detector
10/14/1999DE19803957C1 Metallsuchgerät und Verfahren zur Detektion eines metallischen Gegenstandes Metal detector and method for detecting a metal object
10/13/1999EP0949514A2 Foreign-matter detector and foreign-matter detecting system
10/13/1999EP0948766A1 Method and apparatus for radiofrequency identification tags
10/13/1999EP0948751A1 Method for forming a radio frequency responsive target and apparatus for verifying the authenticity of same
10/13/1999EP0688454A4 Multi-mode identification system
10/13/1999CN1231428A Method for evaluating rock stratum structure by using nuclear magnetic resonance and other well-logging data
10/13/1999CN1231378A Application of polyarontether thermoplastic plastic in downhole instrument
10/12/1999US5966013 Determination of horizontal resistivity of formations utilizing induction-type logging measurements in deviated borehole
10/09/1999CA2234597A1 Landmine detection vehicle
10/07/1999WO1999050690A2 Position sensing
10/07/1999WO1999050689A1 Magnetic resonance detection coil that is immune to environmental noise
10/07/1999WO1999036798A3 Rf identification process and apparatus
10/06/1999EP0946888A2 Display element for use in a magnetic merchandise monitoring system
10/06/1999EP0731929B1 Method and apparatus for detecting an electrically conducting object
10/05/1999US5963036 Well logging apparatus and method for determining properties of earth formations that have been invaded by borehole fluid
10/05/1999US5963035 Electromagnetic induction spectroscopy for identifying hidden objects
10/05/1999US5963028 Package for a magnetic field sensing device
09/1999
09/30/1999WO1999049337A1 An interrogator for interrogating an rfid transponder
09/30/1999WO1999048727A1 Method for capacitative object recognition in motor vehicles
09/30/1999DE19812626A1 Verfahren zur kapazitiven Objekterkennung bei Fahrzeugen A process for capacitive object recognition in vehicles
09/30/1999DE19803642A1 Capacitive sensor with two plates esp. as proximity detector for moving persons
09/29/1999EP0944884A1 Device and method using dielectrokinesis to locate entities
09/29/1999CN1229876A Whole three-dimentional resistivity logging method
09/28/1999US5960370 Method to determine local variations of the earth's magnetic field and location of the source thereof
09/28/1999US5959453 Radial NMR well logging apparatus and method
09/28/1999US5959451 Metal detector with vibrating tactile indicator mounted within a compact housing
09/28/1999CA2166919C Apparatus for measuring resistivity of an earth formation using delta-sigma digital signal generation and sigma-delta digital detection system
09/23/1999WO1999047947A1 Method and apparatus using multi-target tracking to analyze borehole images and produce sets of tracks and dip data
09/23/1999DE19910324A1 Arrangement with contactless microwave sensor for monitoring detection area for industrial applications
09/22/1999EP0943109A1 Process and device for producing anti-theft elements for electronic anti-theft securing of articles
09/22/1999EP0943108A1 Process and device for producing electronic anti-theft elements
09/22/1999EP0943107A1 Magnetic tags
09/22/1999EP0943101A1 Method of detecting and classifying objects by means of radar
09/21/1999US5955982 Method and device for detecting and locating people buried E. G. under an avalanche
09/21/1999US5955884 Method and apparatus for measuring transient electromagnetic and electrical energy components propagated in an earth formation
09/16/1999DE19910323A1 Microwave sensor device for monitoring area using Doppler principle
09/15/1999EP0942147A1 Use of polyaryletherketone-type thermoplastics in downhole tools
09/15/1999CN1228871A Metallic glass alloys for mechanically resonant marker surveillance systems
09/14/1999US5952954 Method for removing clutter from a radar signal
09/14/1999US5952835 Non-contact proximity detector to detect the presence of an object
09/14/1999US5952822 Method and apparatus for proximity sensing in the presence of an external field
09/10/1999WO1999045498A1 Monitoring system
09/10/1999WO1999045234A1 A non-rotating sensor assembly for measurement-while-drilling
09/10/1999CA2322864A1 Monitoring system
09/08/1999EP0940688A2 NMR logging-while-drilling tool generating an axisymmetric magnetic field having straight contour lines in the resonance region
09/08/1999EP0939912A1 A method of probing drill holes electromagnetically, and a transmitter arrangement and a receiver arrangement for carrying out the method
09/08/1999EP0939911A1 Magnetic interrogation techniques
09/07/1999US5949334 Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
09/07/1999US5949293 Integrated circuit for measuring the distance
09/07/1999US5949234 Electrostatic sensor
09/07/1999US5947256 Tag for identifying recyclable materials and method and apparatus for same
09/07/1999CA2102768C Apparatus and method for determining thickness of magnetic pipe by measuring the time it takes the pipe to reach magnetic saturation
09/02/1999WO1999044169A1 Induction sensor
09/02/1999DE19807825A1 Device for automatic detection of switched-on mobile phones prior to entry to security zone, aircraft, explosive atmosphere, etc.
09/01/1999EP0939195A2 Apparatus and method for determining a drilling mode to optimize formation evaluation measurements
09/01/1999EP0917441A4 Ferromagnetic foreign body screening method and apparatus
08/1999
08/31/1999US5944124 Fiber impregnated with polymer
08/31/1999CA2202638C System and method for earth probing with deep subsurface penetration using low frequency electromagnetic signals
08/26/1999WO1999042858A1 Eccentric nmr well logging apparatus and method
08/26/1999DE19907758A1 Detector arrangement for access monitoring, e.g. for banks, embassies, military establishments and airports
08/26/1999DE19816058A1 Sensor component for inductive proximity switch
08/26/1999CA2321205A1 Eccentric nmr well logging apparatus and method
08/25/1999EP0937330A1 A resonant power converter for energising a coil
08/25/1999EP0830618A4 Range gated strip proximity sensor
08/24/1999US5942899 For detecting buried mines
08/24/1999CA2254490C Method and apparatus for investigating earth formations
08/18/1999EP0758457B1 Locator
08/18/1999EP0740822A4 Metal detection system
08/18/1999CN1226001A Method and apparatus for determining solid portion in checked articles
08/17/1999US5939885 Well logging apparatus having a separate mounting member on which a plurality of antennas are located
08/17/1999US5938599 MR method and arrangement for carrying out the method
08/12/1999WO1999040456A1 Metal detector
08/12/1999WO1999027381A3 Peripheral vascular mri rf coil array
08/12/1999DE19806365A1 Pressure detection and localization system with special surface area
08/12/1999DE19803641A1 Capacitive sensor for detecting persons
08/10/1999US5936412 Method for resolving presence, orientation and activity in a defined space
08/10/1999US5936403 Weak-field magnetic field sensor having etched circuit coils
08/05/1999DE19803643A1 Capacitive sensor, e.g. proximity switch
08/04/1999EP0889794A4 Motor vehicle occupant sensing systems
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