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)
12/2000
12/06/2000CN2409522Y Current detector for electric transportation means
12/05/2000CA2068901C Device for measuring current by optic fiber
11/2000
11/30/2000WO2000072339A1 Current sensor with two assembly positions
11/30/2000WO2000072027A1 Electrical current sensor
11/30/2000WO2000044077A3 Transfer impedance measurement instrument system
11/30/2000DE19924237A1 Short circuit current monitoring device has one winding of sensor coil on nonmagnetic carrier of constant cross=sectional area
11/30/2000DE19920428A1 Electric field strength measuring equipment comprises a linearly polarized light source, a Kerr cell containing electro-optical material, light analyzers with adjustable polarization planes, and light sensors
11/30/2000DE19919602A1 Stromsensor nach dem Kompensationsprinzip Current sensor according to the compensation principle
11/30/2000CA2273376A1 Alternating current sensor
11/29/2000EP1055127A1 Method and device for measuring a magnetic field with the aid of the faraday effect
11/28/2000US6154710 Method and apparatus for searching electromagnetic disturbing source and non-contact voltage probe apparatus therefor
11/28/2000US6154022 Optical measuring method and optical measuring device for measuring an alternating magnetic field having intensity normalization
11/23/2000DE10024335A1 Resistive potential divider for measuring voltage in Medium and High voltage systems accommodated in bushing insulator and wound around live conductor
11/22/2000CN1274192A Power transfering system
11/22/2000CN1274086A Both AC and DC detecting and control device with giant magnetoelectric resistance effect
11/15/2000EP1051464A1 Ef
11/15/2000CN2406323Y Dry mutual-indicator with protective voltage on post
11/15/2000CN1273365A Continuous response and forcasting automatic installation function of digital oscilloscope
11/14/2000US6147483 Variable color digital voltmeter with analog comparator
11/14/2000CA2173143C Method and arrangement for measuring an electric current with two light signals propagating in opposite directions using the faraday effect
11/14/2000CA2173142C Method and device for measuring an electrical alternating quantity with temperature compensation
11/09/2000WO2000067272A1 Reed relay switches
11/09/2000WO2000067040A1 Current sensor working in accordance with the compensation principle
11/09/2000DE10018220A1 System for remote measurement of current and voltage in electrical power networks has current converter at nearby measurement point in leads to remote point, impedance balancing unit
11/08/2000CN1272921A Magnetic sensor device and current sensor device
11/08/2000CN1272920A Magnetic sensor device, current sensor device and magnetic sensing element
11/02/2000EP1048568A1 Method and device for checking cigarettes
11/02/2000DE19919207A1 Verfahren und Vorrichtung zum Prüfen von Zigaretten Method and apparatus for testing cigarettes
11/01/2000CN1271677A Method and equipment for inspecting cigarette
10/2000
10/31/2000US6141197 Smart residential circuit breaker
10/31/2000US6140811 Hand-held measurement device combining two logic level indicators
10/31/2000US6140810 Fiber-optic voltage sensor for outdoor high-voltage installations
10/31/2000US6140634 Sensor for measuring electrical current strength and/or voltage
10/26/2000WO2000063712A1 Gauge effect battery tester
10/26/2000WO2000063057A1 Current sensor
10/25/2000EP1046043A1 Toroidal coil without magnetic core comprising two superposed windings
10/25/2000CN2403033Y Optical current sensor
10/25/2000CN2403032Y High-tension test screening can
10/24/2000US6137284 Method and apparatus for detecting supply voltage
10/24/2000CA2055633C Electrical measuring device having two connection configurations
10/19/2000WO2000062084A1 Apparatus and method for electrical measurements on conductors
10/19/2000WO2000062083A1 Apparatus and method for fault detection on conductors
10/19/2000WO2000062021A1 An optical fibre sensor assembly
10/18/2000CN2401899Y Electric power system trouble recording instrument
10/18/2000CN2401896Y Testing and printing integrated instrument for testing electric control system of car
10/17/2000US6134356 Grooved optical fiber for use with an electrode and a method for making same
10/17/2000US6133724 Remote light indication fault indicator with a timed reset circuit and a manual reset circuit
10/17/2000US6133723 Fault indicator having remote light indication of fault detection
10/17/2000US6133722 Variable color digital measuring and testing system with error memory
10/17/2000US6133721 Glass fiber current sensor and method of use therefor
10/12/2000WO2000060369A1 Passive solid-state magnetic field sensors and applications therefor
10/12/2000WO2000060367A1 Insulator support current sensor
10/12/2000WO2000060366A1 Current meter
10/12/2000WO2000036425A3 Fiber optic current sensor having rotation immunity
10/12/2000DE19914772A1 Strommeßaufnehmer Strommeßaufnehmer
10/12/2000DE19912410A1 Meßverfahren für eine Hochspannungsdurchführung und geeignete Meßanordnung Methods of measurement of a high-voltage bushing and suitable measuring device
10/12/2000DE10000243A1 Support isolator with high voltage capacitor for capacitive voltage tester of medium or high voltage switchgear installation
10/12/2000CA2368901A1 Current meter
10/11/2000EP1043595A1 Switched attenuator diode microwave power sensor including a stack of sensor diodes
10/11/2000EP1043594A1 True average wide dynamic range power sensor
10/11/2000EP1043593A1 Switched attenuator diode microwave power sensor
10/11/2000CN2400881Y Dry voltage transformer
10/11/2000CN2400806Y Universal meter for measuring phase-sequence
10/10/2000US6130599 Electrical current sensing apparatus
10/10/2000US6130540 Measurement system for electric disturbances in a high-voltage switchboard plant
10/10/2000US6130530 Tester for power transformers and capacitors
10/05/2000WO2000058738A1 Utility meter reading device and related method
10/05/2000DE19914336A1 Current probe for contactless measurement of the current in a conductor has power supply switch that is activated by changes in the magnetic field
10/05/2000DE19910801A1 Vorrichtung und Verfahren zur Strommessung Apparatus and method for measuring current
10/04/2000EP1040361A1 Methods and apparatus for optically measuring polarization rotation of optical wave fronts using rare earth iron garnets
10/04/2000CN2399814Y Anti-fraudulence low voltage metering distribution transformer
10/04/2000CN1268669A Automatic range-switching digital multimeter and its automatic range-switching method
10/03/2000US6127817 Pockels cell electro-optic sensor coupled to solid voltage divider
09/2000
09/28/2000DE19913017A1 Monitoring device for measured value in electrical AC circuit in low voltage distribution unit has second voltage tapping located on live core of neighbor phase or neutral conductor for connection to measuring instrument
09/28/2000DE19910016A1 Anordnung zur Erfassung von Impedanzstörstellen bei symmetrischen Datenübertragungsleitungen Arrangement for detecting Impedanzstörstellen for balanced data transmission lines
09/27/2000EP1039307A1 Magnetic sensor, current sensor, and magnetic sensor element
09/27/2000EP1039304A2 Measuring process for a high voltage lead-through and related device
09/27/2000EP1038302A1 Current transformer for three-phase systems
09/27/2000CN2398636Y Current grade and resistance grade protection circuit for pointer-type multimeter
09/27/2000CN2398635Y Multimeter circuit board capable of substituting IC
09/27/2000CN1267833A Assembly-less stress sensor head for magneto-optical current transformer
09/27/2000CN1267832A Analogue signal processor for magneto-optical current transformer
09/26/2000US6124798 Alarm device designed to warn of danger of hitting high voltage power line by crane in motion
09/21/2000DE19906276A1 Verfahren und Strommeßmodul zur Stromüberwachung in einem Stromversorgungssystem And current measuring method for power control in a power supply system
09/20/2000EP1037057A2 Electrical current sensing apparatus
09/20/2000EP1037056A1 Current sensor
09/20/2000CN2397583Y Open circuit protector for current transformer
09/20/2000CN2397580Y Capacitance voltage mutual inductor dry electromagnetic device
09/20/2000CN2397494Y Universal meter-electroprobe
09/19/2000US6122415 In-line electro-optic voltage sensor
09/19/2000US6121944 Method of indicating and evaluating measured value
09/19/2000US6121768 D.C.-D.C.-type bidirectional voltage converters and current sensor
09/19/2000US6121767 Digital multimeter with variable color range indication
09/19/2000US6121766 Current sensor assemblies
09/14/2000WO2000054065A1 Device for detecting impedance disturbance points in symmetrical data transmission lines
09/14/2000WO2000054063A1 Device and method for measuring an electric current
09/14/2000WO2000054062A1 Low error, switchable measurement lead detect circuit
09/14/2000DE19910416A1 Vorrichtung zum Erfassen von Signalen an einer Zündanlage Apparatus for detecting signals on an ignition system
09/13/2000EP1035323A2 Device for evaluating signals for an ignition system
09/13/2000CN2396494Y Air-immersed double-sleeve high-voltage current transformer
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