Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929) |
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09/10/1996 | US5555337 Surface wave guideline and object detecting device using surface wave guideline |
09/10/1996 | US5554973 Electrostatic capacitance-type sensor |
09/10/1996 | US5554934 Method and apparatus for locating a buried element of inductive material using probe with detector coils |
09/10/1996 | US5553407 Excavator data acquisition and control system and method of use |
09/06/1996 | WO1996018121A3 Method and apparatus for logging underground formations using radar |
09/05/1996 | DE19505759A1 Schalter mit einem Hall-Differenz-IC für berührungslose Positionsabfrage, insbesondere im Kfz-Bereich Switch with a differential Hall IC for contactless position sensing, especially in the automotive sector |
09/04/1996 | EP0730144A2 Particle detection and destruction in fluid systems |
09/04/1996 | EP0729590A1 Method and apparatus for measuring geophysical data |
09/03/1996 | US5552786 Method and apparatus for logging underground formations using radar |
09/03/1996 | US5552709 NMR sample cell |
09/03/1996 | US5552705 Non-obtrusive weapon detection system and method for discriminating between a concealed weapon and other metal objects |
09/03/1996 | US5552589 Permanent magnet assembly with MR element for detection/authentication of magnetic documents |
09/03/1996 | US5551287 Borehole logging assembly |
09/03/1996 | US5551158 Method for measuring position and angle |
09/03/1996 | CA2049576C Device for location of embedded objects |
08/29/1996 | WO1996026574A1 Switch with hall difference ic for contactless position sensing, in particular in motor vehicles |
08/28/1996 | EP0729122A1 Self-biased magnetostrictive element for electronic article surveillance systems |
08/28/1996 | EP0729039A2 Method and arrangement for electromagnetic object detection |
08/28/1996 | CN1129985A Conductor locator adapter for electronic markers |
08/27/1996 | US5550473 Method for locating thin bed hydrocarbon reserves utilizing electrical anisotropy |
08/27/1996 | US5549008 Device and method for characterizing a medium comprising at least a conductive part |
08/27/1996 | CA2081785C Dipmeter apparatus and method for investigating earth formations |
08/23/1996 | CA2163185A1 Self-biased magnetostrictive element for magnetomechanical electronic article surveillance systems |
08/22/1996 | WO1996025676A1 Method and apparatus for determining 'attractors' |
08/22/1996 | DE19504841A1 Indicating instrument for magnetometer for locating metallic interference body |
08/21/1996 | CN1129333A Resonant tag label detection system and method utilizing multiple frequency response |
08/20/1996 | US5548219 Digital two frequency generator for use in borehole heterodyne measurement systems |
08/14/1996 | EP0726458A2 Method and apparatus for measuring samples and for localizing a first substance within a surrounding second substance by means of nuclear magnetic resonance |
08/14/1996 | EP0725960A1 Capacitive detector device and alarm system |
08/13/1996 | CA2097962C Non-concentricity compensation in position and orientation measurement systems |
08/08/1996 | WO1996023957A1 Method of monitoring fluids entering a wellbore |
08/06/1996 | US5543799 Swept range gate radar system for detection of nearby objects |
08/06/1996 | US5543715 Method and apparatus for measuring formation resistivity through casing using single-conductor electrical logging cable |
08/06/1996 | US5543714 For producing a map of a geological field |
08/01/1996 | WO1996023236A2 Device for the detection of objects, especially explosive objects, lying in the earth |
08/01/1996 | WO1996023235A1 Cable detection apparatus |
08/01/1996 | DE19502455A1 Vorrichtung zum Aufspüren von im Erdreich befindlichen Gegenständen, insbesondere explosiver Gegenstände Apparatus for detecting located in the ground objects, especially explosive objects |
08/01/1996 | CA2211216A1 Device for the detection of objects, especially explosive objects, lying in the earth |
07/30/1996 | US5541605 Swept range gate short range radar system |
07/30/1996 | US5541517 Method for drilling a borehole from one cased borehole to another cased borehole |
07/30/1996 | US5541516 Locator equipment with self-integrity test capability |
07/30/1996 | US5541507 Device for detecting the position of a magnet by analyzing movement of a current-fed coil disposed in the magnetic field of the magnet |
07/25/1996 | DE19601551A1 Electrostatic sensor for detecting presence of moving object |
07/24/1996 | EP0723252A1 Device for testing the magnetic properties of sheet material, e.g. bank notes or valuable papers |
07/24/1996 | EP0723166A1 Capacitive sensor |
07/24/1996 | EP0722290A1 Magnetic determination of position and orientation |
07/24/1996 | EP0630485A4 Method and apparatus for downhole measurement of fluid conductivity and hydrocarbon volume during formation testing. |
07/23/1996 | US5539323 Sensor for articles such as wafers on end effector |
07/23/1996 | US5538803 Discontinuous change in magnetism with applied magnetic field |
07/19/1996 | CA2165631A1 Capacitive sensor |
07/18/1996 | WO1996021872A1 Geophysical methods and apparatus for determining the hydraulic conductivity of porous materials |
07/18/1996 | CA2209132A1 Geophysical methods and apparatus for determining the hydraulic conductivity of porous materials |
07/17/1996 | EP0722097A1 Device for induction logging in the presence of metallic walls |
07/17/1996 | EP0722096A1 Device for mapping a medium by induction measurement |
07/17/1996 | EP0722095A1 Determination of the porosity and permeabilty of a geological formation based on the electrofiltration phenomenon |
07/17/1996 | CN1126841A Circuit-like metallic foil sheet for resonance frequency characteristic tag and the like and process for fabricating it |
07/16/1996 | US5537045 Detection and location system for monitoring changes in resistivity in three dimensions |
07/16/1996 | US5537041 Discriminating time domain conducting metal detector utilizing multi-period rectangular transmitted pulses |
07/10/1996 | EP0721111A2 A method for steering a transmitter array in a logging tool |
07/04/1996 | WO1996020416A1 Process and device for testing a medium |
07/03/1996 | EP0720029A2 Location of remote conductors |
07/03/1996 | EP0719420A1 Apparatus and method for locating a medical tube in the body of a patient |
07/03/1996 | EP0719419A1 Electrode device for protecting and supporting an electrode used for measuring the resistivity of a body of soil |
07/03/1996 | CN1125984A Method and device for sensing and identifying electrical cables |
07/02/1996 | USH1561 Method and apparatus for detection of seismic and electromagnetic waves |
07/02/1996 | US5532598 Amorphous metal tagging system for underground structures including elongated particles of amorphous metal embedded in nonmagnetic and nonconductive material |
07/02/1996 | US5532587 Magnetic field analysis method and apparatus for determining stress characteristics in a pipeline |
07/02/1996 | US5532584 MR sensor including calibration circuit wherein signals are averaged for determining a correction factor and pole pieces are shaped to reduce field in gap therebetween |
07/02/1996 | US5531434 Multiple page sensor for automatic document feeder |
06/27/1996 | WO1996019737A1 An impulse radar with swept range gate |
06/26/1996 | EP0718465A1 Magnetic field producing cable for an underground excavator |
06/26/1996 | EP0717855A1 Process and system for detecting hazardous abandoned objects |
06/26/1996 | CN1125483A Electrical logging system |
06/25/1996 | US5530359 Borehole logging tools and methods using reflected electromagnetic signals |
06/25/1996 | US5530358 For use in a wellbore for communicating electromagnetic energy |
06/25/1996 | US5530357 For determining the path of an underground pipe |
06/20/1996 | DE19539482A1 Pressure sensor for protecting motor vehicle drop=head against damage |
06/18/1996 | US5528556 Combination well logging device |
06/18/1996 | US5528138 Resonant inductive debris detecting apparatus |
06/13/1996 | WO1996018121A2 Method and apparatus for logging underground formations using radar |
06/13/1996 | WO1996018120A1 Determining electrical conductivity of an earth layer |
06/13/1996 | CA2207303A1 Method and apparatus for logging underground formations using radar |
06/12/1996 | EP0716393A2 Magnetic marker and manufacturing method therefor |
06/12/1996 | EP0716320A1 Apparatus for induction measurements through metallic magnetic walls |
06/12/1996 | CN2229089Y Transformer type magnetic wave detector |
06/11/1996 | US5525907 Active impulse magnetometer with bipolar magnetic impulse generator and fast fourier transform receiver to detect sub-surface metallic materials |
06/11/1996 | US5525904 Determination of rock core characteristics |
06/11/1996 | US5525843 Seat occupant detection system |
06/10/1996 | CA2164809A1 Virtual induction sonde for steering transmitted and received signals |
06/06/1996 | WO1996017261A1 Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms |
06/05/1996 | EP0715188A2 Well logging apparatus and method with borehole compensation |
06/05/1996 | EP0715187A1 An electrical logging sensor and its method of manufacture |
06/05/1996 | EP0714521A1 Method and apparatus for compensation of field distortion in a magnetic structure using spatial filter |
06/05/1996 | EP0714519A1 Entropy based signal transmission, reception and signal analysis method and apparatus |
06/05/1996 | CN1124060A Sensor for articles on an end effector |
06/05/1996 | CN1123862A Method and apparatus for exploration of earth layer in front of digging machine |
06/04/1996 | US5523760 Ultra-wideband receiver |
06/04/1996 | US5523753 Vehicle detector system with periodic source filtering |
06/04/1996 | US5523739 Metal detector for control of access combined in an integrated form with a transponder detector |
06/04/1996 | US5523690 For displaying signal information |