Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
04/2014
04/09/2014CN103713178A Current sampling method and current sampling apparatus
04/09/2014CN103713177A Differential-current sampling circuit
04/09/2014CN103713176A Voltage detection device and system
04/09/2014CN102636690B Voltage controlled delay chain-based time domain successive approximation digital intelligent battery current detection circuit and realizing method thereof
04/09/2014CN102520266B Electricity-stealing prevention method of distribution transformer and system thereof
04/09/2014CN102495262B Improved calculation method for classical assumption of short-circuit current
04/09/2014CN102288850B Zinc oxide arrester monitoring device
04/09/2014CN101846729B Method and device for detecting overvoltage of power supply
04/09/2014CN101582636B Voltage detecting circuit and switching power source apparatus
04/08/2014US8694806 Power transfer in an inline switch device
04/08/2014US8692557 Ground monitor
04/08/2014US8692539 Faraday effect current sensor
04/03/2014WO2014051616A1 Electronic device including retractable bolt member
04/03/2014WO2014049617A1 System and method for identification of contact between a human and a static implement in a power tool
04/03/2014WO2014049616A1 Power tool with circuit for sensing contact between an implement and an object
04/03/2014WO2014049615A1 System and method for identification of contact between an object and a static implement in a power tool
04/03/2014WO2014049613A1 System and method for reducing false positive detection between a human and a moving implement in a power tool
04/03/2014WO2014049402A1 System and method for built-in self test (bist) in an integrated circuit
04/03/2014US20140091788 Current detector
04/03/2014DE102012019186A1 Switching circuit for increasing reliability of ground connection, has measuring device is provided for detecting differential voltage between two ground terminals, where measuring device is provided with differential amplifier
04/03/2014DE102006021774B4 Stromsensor zur galvanisch getrennten Strommessung Current sensor for galvanically isolated current measurement
04/02/2014EP2713506A2 Envelope detector with enhanced linear range
04/02/2014EP2713174A1 Method and apparatus for diagnosing faults in a battery pack, and power relay assembly using same
04/02/2014EP2713172A1 Measurement apparatus for electricity distribution grids
04/02/2014EP2713171A2 Class-AB radio frequency amplifier for envelope detector
04/02/2014CN203522200U Current detection structure for reactive power adjusting device
04/02/2014CN203522188U Treatment device for harmonic pollution in power distribution network
04/02/2014CN203522174U Lightning protection device for single-phase leakage switch
04/02/2014CN203521961U DC electrical inspection grounding device
04/02/2014CN203519798U Vehicle-mounted or household power inverter
04/02/2014CN203519760U Cable line fault indicator
04/02/2014CN203519719U Multifunctional intelligent direct-current electric meter
04/02/2014CN203519718U Current detection structure for SVG
04/02/2014CN203519717U H type filtering capacitor bank imbalance current detection apparatus
04/02/2014CN203519716U Storage-battery low-voltage detection and alarm device
04/02/2014CN203519715U Transformer core current monitoring device
04/02/2014CN203519714U Oil well anti-theft warning and alarming device
04/02/2014CN203519713U Special multifunctional frequency converter undervoltage warning device for elevator
04/02/2014CN203519712U Battery voltage acquisition system
04/02/2014CN203519711U Alternating-current power source power interruption alarm circuit for aerospace equipment
04/02/2014CN203519710U Synchronic voltage detecting apparatus with protective function
04/02/2014CN203519709U DC electrical inspection device
04/02/2014CN203519708U High-brightness high-voltage live-line display circuit
04/02/2014CN203519707U Electroscope
04/02/2014CN203519706U Coal mine cable live-line indicating device
04/02/2014CN203519705U DC electroscope
04/02/2014CN203519704U Current threshold detection sensor
04/02/2014CN203519703U DC busbar voltage sampling circuit
04/02/2014CN203519702U Sampling circuit capable of directly detecting voltage
04/02/2014CN203519701U Auxiliary current signal measuring device
04/02/2014CN203519700U Electronic current sensor
04/02/2014CN203519699U Shunting device for power line live-line work allowing remote display
04/02/2014CN203519698U Voltage quality monitoring device
04/02/2014CN203519697U Vehicle-mounted current measuring apparatus
04/02/2014CN203519696U AC-DC voltage universal detecting circuit
04/02/2014CN203519695U Isolated direct current voltage acquisition circuit
04/02/2014CN203519694U DC electrical inspection contactor
04/02/2014CN203519693U Current detection system and equipment with inverter
04/02/2014CN203518937U High-voltage breaker mechanical characteristic tester
04/02/2014CN103703380A Differential voltage measurement
04/02/2014CN103703379A Current sensor
04/02/2014CN103700332A Display device
04/02/2014CN103700331A Flat panel display, threshold voltage sensing circuit, and method for sensing threshold voltage
04/02/2014CN103698706A Method and device for measuring current distribution of large-area flat-type solid oxide fuel cell
04/02/2014CN103698679A On-track monitoring device and method for space single event burnout effect
04/02/2014CN103698660A Transmission line malfunction monitoring auxiliary device
04/02/2014CN103698655A Insulation supervising remote alarming system and method
04/02/2014CN103698640A Intelligent charging detection circuit and movable power supply
04/02/2014CN103698596A Device and method for measuring high voltage of electric power system
04/02/2014CN103698595A Circuit and method for testing current of integrated circuit
04/02/2014CN103698594A Detection range-adjustable current detection circuit and method
04/02/2014CN103698593A Multi-sensor sensing effect display method and display system
04/02/2014CN103698592A Production line fault diagnosis system
04/02/2014CN103698591A Electroscopic device and electroscopic method of near field region of supervoltage or ultra-high voltage transmission line
04/02/2014CN103698590A Real-time voltage monitor device of 10KV power distribution network
04/02/2014CN103698589A Satellite surface potential monitoring device
04/02/2014CN103698588A Zero-crossing detection circuit structure
04/02/2014CN103698587A Low-voltage alarm circuit and method
04/02/2014CN103698586A Flux linkage analysis method for determining doubly fed induction generator-containing three-phase short circuit current
04/02/2014CN103698585A Multi-range optical current sensor
04/02/2014CN103698584A Power distribution network overhead line three-phase current sampling synchronization method
04/02/2014CN103698583A Flake film pasting optical current sensor
04/02/2014CN103698582A Method for measuring pinning voltage of 4-tube pixel unit CMOS (complementary metal oxide semiconductor) image sensor
04/02/2014CN103698581A Voltage detection circuit and Bluetooth device
04/02/2014CN103698580A Battery voltage and temperature collection system
04/02/2014CN103698579A Direct-current voltage sampling device of low-voltage frequency converter
04/02/2014CN103698578A Power output control method of automatic electric power meter reading system and automatic electric power meter reading system
04/02/2014CN103698577A Method for calculating neutral current of transformer during running of direct-current power transmission monopole
04/02/2014CN103698576A Voltage detection circuit, circuit board provided with same, heating equipment and electric heating product
04/02/2014CN103698575A Ammeter
04/02/2014CN103698574A Current detection method of Boost circuit during discontinuous inductive current
04/02/2014CN103698573A Power system electric energy metering method
04/02/2014CN103698572A All-fiber photoelectric current transformer
04/02/2014CN103698571A Current transformer equipment with effects of self energy supply and low consumption and bus current detecting method
04/02/2014CN103698559A Electromagnetic interference prevention device for tong type ammeter
04/02/2014CN103698376A Electrolytic tank for determining iron oxide decomposition voltage in slag
04/02/2014CN103689857A Electric shock luminous alarm insulating boots
04/02/2014CN102608412B Inverse soft meter of doubly-fed wind generator
04/02/2014CN102539892B Method for obtaining true effective values of AC (alternating current) signals
04/02/2014CN102523650B Light-emitting diode (LED) current detection and control circuit
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