G01R - Measuring electric variables; Measuring magnetic variables

More topics under "G01R - Measuring electric variables; Measuring magnetic variables" (357,211)
G01R 1 - Details of instruments or arrangements of the types covered by groups or (27,269)
G01R 11 - Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption (8,227)
G01R 13 - Arrangements for displaying electric variables or waveforms (5,418)
G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411)
G01R 17 - Measuring arrangements involving comparison with a reference value, e.g. bridge (1,558)
G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
G01R 21 - Arrangements for measuring electric power or power factor (6,609)
G01R 22 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters (4,127)
G01R 23 - Arrangements for measuring frequencies; Arrangements for analysing frequency spectra (7,503)
G01R 25 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents (2,594)
G01R 27 - Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom (22,286)
G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
G01R 3 - Apparatus or processes specially adapted for the manufacture of measuring instruments (2,138)
G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (152,264)
G01R 33 - Arrangements or instruments for measuring magnetic variables (52,887)
G01R 35 - Testing or calibrating of apparatus covered by the other groups of this subclass (8,105)
G01R 5 - Instruments for converting a single current or a single voltage into a mechanical displacement (553)
G01R 7 - Instruments capable of converting two or more currents or voltages into a single mechanical displacement (437)
G01R 9 - Instruments employing mechanical resonance (38)

Patents for G01R - Measuring electric variables; Measuring magnetic variables (453)
12/2004
12/29/2004	WO2004113932A2 Method and system for automatic target finding
12/28/2004	US6835491 Battery having a built-in controller
12/23/2004	WO2004111660A2 System and method for classifying defects in and identifying process problems for an electrical circuit
12/23/2004	WO2004111659A2 Methods and apparatus for packaging integrated circuit devices
12/16/2004	WO2004109300A2 Methods for magnetic resonance signal perturbations measurement
12/16/2004	US20040251525 Methods and apparatus for packaging integrated circuit devices
12/07/2004	US6829161 Magnetostatically coupled magnetic elements utilizing spin transfer and an MRAM device using the magnetic element
12/02/2004	US20040239313 Position sensor utilizing a linear hall-effect sensor
11/2004
11/25/2004	WO2004072657A3 Fuel cell voltage measuring assembly
11/24/2004	CN1548978A Electric power generator air gap magnetic field change on-line real-time detecting method
11/24/2004	CN1548976A Electric power generator rotor turn-to-turn short-circuit on-line monitoring system
11/18/2004	WO2004099795A2 Magnetic field response measurement acquisition system
11/18/2004	WO2004099793A2 Device probing using a matching device
11/18/2004	WO2004099792A2 Planarizing and testing of bga packages
11/18/2004	US20040227518 Fuel cell voltage measuring assembly
11/11/2004	WO2004074851A3 Memory repair analysis method and circuit
09/2004
09/23/2004	WO2004081587A2 Apparatus and method for testing electronic systems
09/09/2004	US20040176924 Apparatus and method for testing electronic systems
09/02/2004	WO2004074853A2 Position sensor utilizing a linear hall-effect sensor, having a magnet arrangement for an increased linearity
09/02/2004	WO2004074851A2 Memory repair analysis method and circuit
08/2004
08/26/2004	WO2004072658A2 Apparatus for making high-sensitivity measurements of various parameters, and sensors particularly useful in such apparatus
08/26/2004	WO2004072657A2 Fuel cell voltage measuring assembly
08/25/2004	CN1164004C Battery having built-in controller
08/25/2004	CN1163758C Method for testing earthing resistance
08/19/2004	US20040163015 Memory repair analysis method and circuit
08/12/2004	WO2004068188A2 Reflective area modulation imaging system
08/12/2004	WO2004068147A2 Reflective area modulation imaging system
07/2004
07/29/2004	WO2004063760A2 Magnetostatically coupled magnetic elements utilizing spin transfer and an mram device using the magnetic element
07/15/2004	US20040136231 Magnetostatically coupled magnetic elements utilizing spin transfer and an mram device using the magnetic element
07/01/2004	US20040128088 Method of analyzing the time-varying electrical response of a stimulated target substance
06/2004
06/10/2004	WO2003096030B1 A method of discharging spherical elements from a container and a dispensing apparatus
05/2004
05/21/2004	WO2003096030A3 A method of discharging spherical elements from a container and a dispensing apparatus
04/2004
04/28/2004	EP1412061A2 Field ionizing elements and applications thereof
04/08/2004	US20040066193 Methods and devices for dissolving hyperpolarised solid material for nmr analyses
03/2004
03/31/2004	CN1144060C Battery package, method for counting of charging/discharging and providing residual electricity quantity of battery package
03/25/2004	US20040057583 Dynamic impedance comparator
03/25/2004	US20040056652 Magnetic sensor
03/24/2004	CN1484768A Method and devices for dissolving hyperpolarised solid material for nmr analyses
12/2003
12/24/2003	WO2003107021A1 Method for determining an equivalent circuit for a solar cell
12/17/2003	CN1131434C Power supply circuit for electricity meter
12/11/2003	WO2003102605A1 Method for fast frequency estimation by means of the rls method
12/04/2003	WO2002037132A8 Methods and devices for dissolving hyperpolarised solid material for nmr analyses
11/2003
11/26/2003	CN1129007C Integrated circuit having frequency division opevation testing function
11/25/2003	US6654115 System and method for multi-dimensional optical inspection
11/20/2003	WO2003096030A2 A method of discharging spherical elements from a container and a dispensing apparatus
11/20/2003	CA2485823A1 A method of discharging spherical elements from a container and a dispensing apparatus
11/12/2003	CN1455869A Device to audibly express impedance difference
11/11/2003	US6646859 Power supply arrangement
08/2003
08/27/2003	EP1337863A2 Dynamic impedance comparator
07/2003
07/30/2003	EP1330659A1 Methods and devices for dissolving hyperpolarised solid material for nmr analyses
07/30/2003	EP1330182A1 Methods and devices for polarised nmr samples
04/2003
04/17/2003	US20030071223 Field ionizing elements and applications thereof
04/10/2003	WO2003001219A3 Field ionizing elements and applications thereof
04/10/2003	US20030067736 Power supply arrangement
01/2003
01/03/2003	WO2003001219A2 Field ionizing elements and applications thereof
11/2002
11/14/2002	US20020168099 Image searching defect detector
08/2002
08/22/2002	WO2000028335A9 Connection detection circuit apparatus and method
07/2002
07/18/2002	US20020093650 System and method for multi-dimensional optical inspection
06/2002
06/12/2002	CN1353315A Power cable lines
05/2002
05/16/2002	WO2002018957A3 A device to audibly express impedance differences
05/10/2002	WO2002037132A1 Methods and devices for dissolving hyperpolarised solid material for nmr analyses
04/2002
04/23/2002	US6378026 Connection detection circuit and method
04/04/2002	US20020039182 Electrical circuit conductor inspection
03/2002
03/13/2002	EP1135691A4 Electrostatic force detector with cantilever and shield
03/07/2002	WO2002018957A2 A device to audibly express impedance differences
03/07/2002	CA2420628A1 A device to audibly express impedance measurement
01/2002
01/30/2002	CN1333875A Electrostatic fource detector with cantilever and shield
01/15/2002	CA2095234C Nmr frequency locking circuit
01/08/2002	US6337478 Electrostatic force detector with cantilever and shield for an electrostatic force microscope
01/03/2002	US20020001745 Battery having a built-in controller
12/2001
12/19/2001	EP0569354B1 Battery with strength indicator
10/2001
10/30/2001	US6311086 Overhauser magnetic resonance imaging (ORMI) method comprising ex vivo polarization of a magnetic resonance (MR) imaging agent
10/04/2001	WO2001073452A1 Power supply arrangement
09/2001
09/26/2001	EP1135691A1 Electrostatic force detector with cantilever and shield
09/05/2001	CN1311441A Method for testing earthing resistance
07/2001
07/11/2001	CN1303524A Battery having built-in controller
01/2001
01/10/2001	EP1066658A1 Battery having a built-in controller
12/2000
12/07/2000	WO2000028335A3 Connection detection circuit apparatus and method
11/2000
11/29/2000	CN1274850A Integrated circuit having frequency division operation testing function
10/2000
10/04/2000	CN1269015A Overhauser magnetic resonance imaging (ORMI) method comprising ex vivo polarization of a magnetic resonance (MR) imaging agent
09/2000
09/20/2000	CN1266991A Battery package, method for counting of charging/discharging and providing with residual electricity quantity of battery package
05/2000
05/18/2000	WO2000028338A1 Electrostatic force detector with cantilever and shield
05/18/2000	WO2000028335A2 Connection detection circuit apparatus and method
04/2000
04/05/2000	EP0990168A1 Overhauser magnetic resonance imaging (ormi) method comprising ex vivo polarization of a magnetic resonance (mr) imaging agent
01/2000
01/25/2000	CA2101077C Battery with strength indicator
10/1999
10/26/1999	US5973941 Electricity meter with a switching mode transformer power supply circuit
10/14/1999	WO1999052163A1 Battery having a built-in controller
01/1999
01/27/1999	CN1206111A Power supply circuit for electricity meter
01/20/1999	EP0892273A1 Supply circuit for an electricity meter
01/17/1999	CA2242799A1 Power supply circuit for an electricity meter
12/1998
12/23/1998	WO1998058272A1 Overhauser magnetic resonance imaging (ormi) method comprising ex vivo polarization of a magnetic resonance (mr) imaging agent
12/23/1998	CA2290808A1 Overhauser magnetic resonance imaging (ormi) method comprising ex vivo polarization of a magnetic resonance (mr) imaging agent
12/09/1998	EP0766830B1 Single domain mr sensors using permanent magnet stabilization
09/1998
09/23/1998	CN1039938C Thermocoupler device for detecting die-away of gas burner
03/1998
03/25/1998	EP0569363B1 Nmr frequency locking circuit
04/1997
04/09/1997	EP0766830A1 Single domain mr sensors using permanent magnet stabilization
10/1996
10/16/1996	EP0501952B1 Battery monitoring system
02/1996
02/28/1996	EP0569354A4 Battery with strength indicator
01/1996
01/10/1996	CN1114744A A thermocoupler device
12/1995
12/28/1995	WO1995035508A1 Single domain mr sensors using permanent magnet stabilization

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