Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 15 - Details of measuring arrangements of the types provided for in groups ,  or
Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups ,  or (13,411)
10/1983
10/18/1983CA1155496A1 Electronic-magnetic current isolator circuit
10/11/1983US4409540 Active voltage divider
10/04/1983US4408175 Self centering current responsive pickup means
10/04/1983US4408155 Fault detector with improved response time for electrical transmission system
10/04/1983US4408128 Electric resistance type wide range moisture meter
09/1983
09/21/1983EP0089275A1 Interferometric glass fibre current measuring device
09/21/1983EP0088972A1 Fibre-optics measuring arrangement
09/20/1983CA1154094A1 Digital read-out meter circuit with variable meter update rate
09/14/1983EP0088419A1 Apparatus for optically measuring a current
09/06/1983US4403132 Induction compensating method and apparatus for weld nugget resistance sensing leads of spot welders
08/1983
08/30/1983US4401943 Electrical efficiency meter
08/24/1983EP0086373A1 Magneto-optical converter
08/23/1983US4400821 Apparatus for the measurement of the X-ray tube high voltage
08/18/1983WO1983002841A1 A device for measurement of the temperature at power lines
08/18/1983WO1983002829A1 Measurement of electrical signals with picosecond resolution
08/16/1983US4399512 Waveform searching system
08/16/1983US4399354 Digital rate monitor
08/09/1983US4398261 Device for measuring the level of a variable signal with logarithmic conversion
08/09/1983CA1151771A1 Method and apparatus for enhancing the output of an rms converter
08/02/1983CA1151242A1 Method and apparatus for sensing current in high voltage conductors
07/1983
07/26/1983US4395678 Linearizing circuit for meter displays
07/26/1983CA1150792A1 Method and apparatus for signal transmission
07/19/1983US4394619 Hall probe with automatic connecting means
07/12/1983CA1149875A1 Voltage monitor
07/06/1983EP0083196A1 Voltage and electric field measuring device using light
06/1983
06/22/1983EP0082082A1 Current measuring arrangement for a current passing through an electric conductor
06/21/1983US4389708 Method and apparatus for enhancing the output of an RMS converter
06/15/1983EP0081367A1 Magnetic field and electric current measuring device
05/1983
05/31/1983US4386280 Removable contactless transmission clamp assembly system
05/31/1983CA1147393A1 System and method for measuring current in a high tension line using digital information transmitted by optical fibers
05/24/1983US4385283 Apparatus for monitoring and detecting operational defects in the state of vehicle lamps
05/24/1983US4385273 Transducer for measuring a current-generated magnetic field
05/24/1983CA1147063A1 Sensor output correction circuit
05/17/1983US4384289 Transponder unit for measuring temperature and current on live transmission lines
05/17/1983CA1146628A1 Voltage-measuring device for controlling the rectifiers of current-converters in high- voltage direct-current transmission systems
05/11/1983EP0078731A1 Interferometer for measuring a magnetic field, and electric current measuring device comprising such an interferometer
05/11/1983EP0022834B1 Improvement relating to voltage capacitive transformers
05/03/1983US4382227 Multipurpose test equipment input circuitry
04/1983
04/28/1983WO1983001535A1 Current sensor device with primary reduction winding
04/27/1983EP0077736A2 Test vector indexing method and apparatus
04/25/1983EP0067153A4 Dual core magnetic amplifier sensor.
04/13/1983EP0076609A1 Active voltage divider
04/06/1983EP0076228A1 Fibre-optical measuring device
04/06/1983EP0075701A1 Arrangement for the transmission of measured values to a distant location
04/06/1983EP0075699A1 Arrangement for the transmission of measured values to a distant location
03/1983
03/30/1983EP0075466A1 Conductivity detector and method
03/29/1983US4378496 Current measuring apparatus using light-emitting devices
03/23/1983EP0074919A1 Circuit with a measuring transducer, in particular with a semiconductor pressure sensor
03/16/1983EP0074297A1 Hybrid compensated current transformer
03/16/1983EP0074235A1 Programmable signal analyzer
02/1983
02/23/1983EP0072422A1 Soft magnetic core including a semiconductor element to sense the magnetic field for measuring alternating and direct currents
02/16/1983EP0072292A1 Method of measuring eletric current, and device for carrying it out
02/15/1983US4374359 System and method of sensing current in high voltage transmission lines utilizing the transmission of digital information by optical fibers
02/15/1983US4374333 Two terminal Hall-sensor
02/09/1983EP0071560A1 High-voltage measuring arrangement with capacitive dividers mounted in a vessel filled with insulating gas
02/09/1983EP0071106A1 Optical voltage and electric field sensor
02/09/1983EP0070861A1 Wafer and method of testing networks thereon.
01/1983
01/25/1983US4370616 Low impedance electrostatic detector
01/25/1983US4370612 Interferometric optical fiber electric current measuring device
01/25/1983US4370520 AM Stereo receiver
12/1982
12/22/1982EP0067683A1 Electric field detector
12/22/1982EP0067527A1 Improvements in or relating to measuring probes
12/22/1982EP0067153A1 Dual core magnetic amplifier sensor.
12/15/1982EP0066843A1 Digital measuring apparatus with a liquid crystal screen
12/14/1982CA1137556A1 Capacitive voltage transformers with electronic output
12/07/1982US4363061 Electric motor and transformer load sensing technique
12/07/1982US4362060 Displacement transducer
12/01/1982EP0065901A1 Potentiometric transducer system
12/01/1982EP0065572A1 Linearization circuit
11/1982
11/23/1982US4360880 Recirculating RMS AC conversion method and apparatus with fast mode
11/03/1982EP0063636A1 Current transformer with annular case to be built in a metal cast high-tension switchgear installation
10/1982
10/27/1982EP0063174A1 Device for measuring the high voltage of an X-ray tube
10/26/1982US4356523 Narrow track magnetoresistive transducer assembly
10/26/1982US4356448 Apparatus for measuring electrical or magnetic fields by absorption spectrum change
10/26/1982CA1134465A1 Linearization circuit
10/06/1982EP0061520A1 Transducer without magnetic core for contactless measurement of a current
10/05/1982CA1133066A1 Optical fiber measuring devices
09/1982
09/29/1982EP0061033A1 Electrostatic voltage sensor
09/28/1982CA1132667A1 Track and hold circuit
09/21/1982US4350952 Digital read-out meter circuit and tachometer with variable meter update rate using an up/down counter means
09/21/1982CA1132205A1 Device for modifying or controlling the shape of an electrical output signal
09/16/1982WO1982003136A1 Power factor monitoring and control system for resistance welding
09/14/1982US4349886 Device for modifying or controlling the shape of an electrical output signal
09/14/1982CA1131696A1 Devices adapted to detect variations in magnetic flux notably circuit breakers
09/07/1982US4348587 Fiber optic transducer for measuring current or magnetic field
08/1982
08/31/1982US4347469 Electronic-magnetic current isolator circuit
08/24/1982CA1130381A1 Electronic selector switch, particularly for telemetrical use in radio sondes
08/24/1982CA1130379A1 Measuring device for a high-tension installation
08/17/1982CA1129672A1 Fiber optical temperature sensors
08/10/1982US4344101 Testers
08/05/1982WO1982002603A1 Wafer and method of testing networks thereon
08/03/1982CA1128872A1 Volume control apparatus
07/1982
07/20/1982CA1128132A1 Measuring device for transmitting measuring signals via an optical link
07/20/1982CA1128131A1 Cable condition analyzing system for electric arc furnace conductors
07/13/1982US4339721 Electrostatic voltmeter
07/08/1982WO1982002253A1 Dual core magnetic amplifier sensor
07/06/1982US4338589 Autocalibration of compressed A/D converter
06/1982
06/24/1982WO1982002095A1 Linearization circuit
06/15/1982US4334781 Optical sensing system
06/09/1982EP0053581A1 Error-compensated high-voltage instrument transformer
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