Patents
Sitemap › G01 - Measuring; Testing › G01V - Geophysics; Gravitational measurements; Detecting masses or objects; Tags › G01V 13 - Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups
Patents for G01V 13 - Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups (988)
05/2003
05/08/2003US20030088372 Array calibration and quality assurance
05/01/2003US20030080288 Multi-point subsurface measurement calibration
04/2003
04/19/2003CA2406495A1 Multi-point subsurface measurement calibration
04/17/2003CA2847625A1 Airborne geophysical measurements
03/2003
03/18/2003US6534985 Modular electromagnetic sensing apparatus having improved calibration
02/2003
02/20/2003US20030033847 Calibration circuit for use with a differential input preamplifier in a sensor system
01/2003
01/16/2003US20030014217 Programmable photoelectric sensor and a system for adjusting the performance characteristics of the sensor
01/08/2003EP1272863A1 Device and method for measuring magnetic field(s) with calibration superimposed on the measurement, and corresponding uses
01/03/2003WO2003001245A1 Adjusting the performance characteristics of a photoelectric sensor
01/02/2003EP1269219A1 Pressure-sensitive switch, its method of calibration and use in a hydrophone array
12/2002
12/05/2002US20020182589 Calibrating optical fibers for accuracy; obtain optical fibers, electrify, monitor electrical resistance compare to control
08/2002
08/22/2002WO2002065082A1 Device for calibrating a pressure sensor, in particular an infrasound pressure sensor
07/2002
07/31/2002EP0868670B1 Signatures of marine seismic sources
04/2002
04/18/2002US20020043976 Modular electromagnetic sensing apparatus
03/2002
03/06/2002EP1184684A2 Medical system calibration with static metal compensation
03/06/2002EP1183556A1 Method and apparatus improving performance of aperture monitoring system
11/2001
11/20/2001US6318497 Pressure-sensitive switch, its method of calibration and use in a hydrophone array
10/2001
10/31/2001EP1149506A1 High bandwidth force-balance single-coil geophone
10/25/2001WO2001079873A1 Device and method for measuring magnetic field(s) with calibration superimposed on the measurement, and corresponding uses
09/2001
09/07/2001WO2001065278A1 Pressure-sensitive switch, its method of calibration and use in a hydrophone array
08/2001
08/18/2001CA2331319A1 Support bracket for a locator wire for a gas utility line
07/2001
07/12/2001DE19913872C2 Sensor mit Ausfallüberwachungssystem Sensor failure monitoring system
07/11/2001CN2439037Y Analog well using for detecting petroleum logging instrument
06/2001
06/14/2001WO2001042806A1 Method and system for calibration of fiber optic sensor head
06/07/2001DE19954716A1 Metal detector efficiency test method involves applying test signal to additional coil arranged in one reception coil for generating field superimposing field region of reception coil
03/2001
03/27/2001US6208585 Acoustic LWD tool having receiver calibration capabilities
03/27/2001US6208584 Place calibration of sonar receive array
03/21/2001EP1085306A2 In place calibration of sonar receive array
03/15/2001CA2319633A1 In place calibration of sonar receive array
03/13/2001CA2240931C Signatures of marine seismic sources
12/2000
12/14/2000WO2000075696A1 Method and apparatus improving performance of aperture monitoring system
12/12/2000US6160761 Removable air mandrel
12/05/2000US6157024 Method and apparatus for improving the performance of an aperture monitoring system
10/2000
10/19/2000DE19913872A1 Sensor with failure monitoring system
10/10/2000CA2143727C Method and apparatus for balancing the electrical output of the receiver coils of an induction logging tool
09/2000
09/13/2000CN1266195A Method for raising seisphone measurement accuracy
08/2000
08/09/2000EP0799429B1 Source signature determination and multiple reflection reduction
06/2000
06/27/2000US6081765 Signatures of marine seismic sources
05/2000
05/18/2000WO2000028782A1 High bandwidth force-balance single-coil geophone
05/10/2000EP0948751A4 Method for forming a radio frequency responsive target and apparatus for verifying the authenticity of same
05/04/2000WO2000024432A1 Treatment of biofilm on marine seismographic equipment
04/2000
04/27/2000DE19848793A1 Control apparatus for testing a detector such as a metal detector used in mine or bomb detection includes inductance, a switch mechanism and a spacer
04/18/2000US6051830 Method for stabilizing a scintillation detector
03/2000
03/14/2000CA2011437C Logging method and apparatus using a rotating sensor
02/2000
02/08/2000US6023159 Stud sensor with dual sensitivity
01/2000
01/25/2000US6018494 Signature estimation of a seismic source
11/1999
11/30/1999US5995905 Source signature determination and multiple reflection reduction
10/1999
10/13/1999EP0948751A1 Method for forming a radio frequency responsive target and apparatus for verifying the authenticity of same
09/1999
09/23/1999DE19910324A1 Arrangement with contactless microwave sensor for monitoring detection area for industrial applications
09/16/1999DE19910323A1 Microwave sensor device for monitoring area using Doppler principle
09/15/1999EP0942296A2 Method of calibrating a logging tool
09/11/1999CA2264426A1 Method for stabilizing a scintillation detector
09/07/1999US5948959 Calibration of the normal pressure transfer function of a compliant fluid-filled cylinder
07/1999
07/06/1999CA2117990C Method and apparatus for determining the in situ larmor frequency of a wellbore nmr tool to compensate for accumulation of magnetic material on the magnet housing of the tool
06/1999
06/02/1999CN2322152Y Device for side setting normal Dewar on vacuum system to work
03/1999
03/30/1999CA2141553C Dual sensitivity stud sensor
02/1999
02/10/1999CN1042062C Detection system with receptor and process for implementation of device to verify functioning of this detection system
10/1998
10/07/1998EP0868670A1 Signatures of marine seismic sources
10/01/1998DE19710217C1 Determining parameters of vibration or inclination of seismometer
09/1998
09/15/1998US5808965 Laboratory test method to measure towed array hydrophone response
06/1998
06/30/1998US5774415 Geophone normalization process
06/25/1998WO1998027442A1 Method for forming a radio frequency responsive target and apparatus for verifying the authenticity of same
06/10/1998EP0846963A2 Geophone normalization process
05/1998
05/26/1998US5757720 Processing method for calibrating a hydrophone-geophone sensor pair, and a seismic prospecting method implementing the processing
04/1998
04/28/1998US5745435 Method of testing an acoustic array antenna
04/14/1998US5739442 Method for monitoring conditions of objects including edge detecting and travel direction reversing steps
03/1998
03/11/1998EP0827592A1 A method for the automatic calibration of an operational passive acoustic listening system
02/1998
02/19/1998DE19653297C1 Method of testing functional characteristics of geophysical motion detectors esp. geophones
01/1998
01/27/1998US5712828 Hydrophone group sensitivity tester
12/1997
12/03/1997EP0648342B1 Method and apparatus for calibrating an mwd electromagnetic logger
10/1997
10/15/1997EP0673479B1 Mechanical linear guide
10/08/1997EP0799429A1 Source signature determination and multiple reflection reduction
09/1997
09/30/1997US5672807 For an associated walk-through detection system
09/02/1997US5663486 For making a body move along a movement axis
08/1997
08/13/1997EP0789233A1 Test procedure for an acoustic array antenna
08/05/1997US5654937 Acoustic element tester for an array of hydrophones
07/1997
07/30/1997EP0786670A1 Procedure for calibration processing of a hydrophone/geophone sensor pair and procedure for seismic prospection implementing this processing
07/01/1997US5644236 Method and apparatus for simultaneously testing the inductance of detection coils in a multiple channel metal detector
07/01/1997US5644067 Apparatus and method for calibration of sensing transducers
06/1997
06/26/1997WO1997022892A1 Signatures of marine seismic sources
05/1997
05/06/1997US5627475 Metal detector coil resistance testing
04/1997
04/15/1997US5621699 Apparatus and method of calibrating vertical particle velocity detector and pressure detector in a sea-floor cable with in-situ passive monitoring
04/08/1997US5619128 Stud sensor with over-stud miscalibration via circuit which stores an initial calibration density, compares that to a current test density and outputs result via indicator
04/08/1997US5618999 Apparatus and method for monitoring condition of objects
03/1997
03/29/1997CA2168294A1 Apparatus and method for monitoring condition of objects
03/13/1997WO1997003370A3 Calibrating vertical particle velocity and pressure detectors
02/1997
02/11/1997US5600941 Compensation for start-up transients
01/1997
01/30/1997WO1997003370A2 Calibrating vertical particle velocity and pressure detectors
12/1996
12/18/1996EP0648342A4 Method and apparatus for calibrating an mwd electromagnetic logger.
12/10/1996US5583334 Method and apparatus for the detection of defective light transmitters and/or receivers of a light grid for detecting objects in a surveillance area
10/1996
10/31/1996WO1996034298A1 A method for the automatic calibration of an operational passive acoustic listening system
10/02/1996EP0735385A2 Compensation for start-up transients
10/02/1996EP0735377A2 Metal detector coil inductance testing
10/02/1996EP0735376A2 Metal detector coil resistance testing
07/1996
07/04/1996WO1996020417A1 Source signature determination and multiple reflection reduction
06/1996
06/25/1996US5530678 Real-time calibration acoustic array
06/04/1996US5523739 Metal detector for control of access combined in an integrated form with a transponder detector
05/1996
05/15/1996EP0657032A4 Dual sensitivity stud sensor.
05/07/1996USH1528 Hydrophone preamplifier control unit
01/1996
01/04/1996DE19519932A1 Metal detector integrated with a transducer detector for access control..
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