| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 03/13/2013 | CN202798026U Power supply device and electric scooter |
| 03/13/2013 | CN202797953U Power management unit (PMU) with lightning stroke number detection function |
| 03/13/2013 | CN202797932U Three-phase electronic lightning arrester with counter |
| 03/13/2013 | CN202797635U Latching circuit for switch cabinet intelligent display device |
| 03/13/2013 | CN202797554U Switching device and detection circuit of plug-in dual-power supply |
| 03/13/2013 | CN202797507U Busbar connector facilitating current collection |
| 03/13/2013 | CN202797502U Computer power socket with alarm function |
| 03/13/2013 | CN202795850U Power supply electromotive force measurement and method comparison demonstration device |
| 03/13/2013 | CN202795042U Separate excitation test bed |
| 03/13/2013 | CN202795039U Half-AC (alternating current) testing stand |
| 03/13/2013 | CN202794474U Battery voltage detection system and mobile terminal adopting the same |
| 03/13/2013 | CN202794410U Monitoring system for leakage current of insulator |
| 03/13/2013 | CN202794394U On-line detection system for contact network lightning arrester |
| 03/13/2013 | CN202794359U Zinc oxide lightning arrester on-line monitoring device |
| 03/13/2013 | CN202794331U Electric power circuit energy saving monitoring system |
| 03/13/2013 | CN202794327U Household electricity intelligent monitoring device based on single-point perception |
| 03/13/2013 | CN202794326U Online monitoring device for grounding current of transformer core |
| 03/13/2013 | CN202794325U Device capable of increasing unit voltage collecting quantity |
| 03/13/2013 | CN202794324U Undervoltage alarm system for storage battery of internal combustion locomotive |
| 03/13/2013 | CN202794323U Thunder monitoring system and thunder monitoring terminal |
| 03/13/2013 | CN202794322U Wind power quality detection device based on FPGA processor and ARM processor |
| 03/13/2013 | CN202794321U Active photoelectric current transformer |
| 03/13/2013 | CN202794320U Stray current monitoring device |
| 03/13/2013 | CN202794319U High-voltage frequency-conversion measuring device |
| 03/13/2013 | CN202794318U Acquisition circuit |
| 03/13/2013 | CN202794317U Zero cross detection circuit structure |
| 03/13/2013 | CN202794316U Detection circuit for changes of voltage slope |
| 03/13/2013 | CN202794315U Insulator zero-measurement instrument |
| 03/13/2013 | CN202794314U Over-current detection circuit of power switching tube |
| 03/13/2013 | CN202794313U Anti-discharging device for high-voltage live sensor |
| 03/13/2013 | CN202794312U Alternating current power failure detecting circuit |
| 03/13/2013 | CN202794311U Voice alarm device for current leakage of electrical equipment |
| 03/13/2013 | CN202794310U Special-purpose test pencil for automotive electrical repair |
| 03/13/2013 | CN202794309U Electric shock resisting warning device for excavator construction operation |
| 03/13/2013 | CN202794308U Electric-shock resistant test pencil |
| 03/13/2013 | CN202794307U Electroscope |
| 03/13/2013 | CN202794306U Electric power circuit load measuring and recording apparatus |
| 03/13/2013 | CN202794305U Differential current sampling circuit |
| 03/13/2013 | CN202794304U Differential current sampling circuit |
| 03/13/2013 | CN202794303U Fiber optic type current sensor |
| 03/13/2013 | CN202794302U Capacitive current detection table |
| 03/13/2013 | CN202794301U High voltage monitoring device |
| 03/13/2013 | CN202794300U Online monitoring device of power transmission line lightening arrester |
| 03/13/2013 | CN202794299U High-precision current tuning and testing system of LED (Light Emitting Diode) driving circuit |
| 03/13/2013 | CN202794298U Wireless high-voltage flow measurement instrument |
| 03/13/2013 | CN202794297U Photoelectric current transformer |
| 03/13/2013 | CN202794296U Polyphase photoelectric current transformer |
| 03/13/2013 | CN202794295U Photoelectric direct current transformer |
| 03/13/2013 | CN202794294U Electronic type photoelectric transformer collection device |
| 03/13/2013 | CN202794293U Busbar voltagebar voltage isolating and sampling circuit |
| 03/13/2013 | CN202794292U Device for testing standby current |
| 03/13/2013 | CN202794291U Simple circuit for measuring single cell voltages of series battery containing any number of cells |
| 03/13/2013 | CN202794290U Voltage sensor |
| 03/13/2013 | CN202794289U Coaxial capacitance voltage sensor |
| 03/13/2013 | CN202794288U Novel voltage sensor |
| 03/13/2013 | CN202794287U Merging device for photoelectric transformer |
| 03/13/2013 | CN202794279U Multimeter for testing reverse breakdown voltage of transistor |
| 03/13/2013 | CN202780961U Multifunctional electrician's screwdriver |
| 03/13/2013 | CN202780176U Voltage and current display device of electric welding machine |
| 03/13/2013 | CN102971634A Method or voltage detection system for determining a correction parameter for a measurement channel and for detecting a terminal voltage of an electric motor |
| 03/13/2013 | CN102970789A Driver circuit and related error detection circuit and method |
| 03/13/2013 | CN102970005A Power recovery voltage detector |
| 03/13/2013 | CN102969718A Current sampling method for active power filter |
| 03/13/2013 | CN102968067A Centralized control box of electronic control fuse relay |
| 03/13/2013 | CN102967820A Mobile terminal and self-detection method thereof |
| 03/13/2013 | CN102967755A Inductive current detecting circuit |
| 03/13/2013 | CN102967754A Digital microohm resistance pulse isolation current sensor based on power line intrinsic resistor |
| 03/13/2013 | CN102967753A Voltage detection circuit of automotive frequency converter |
| 03/13/2013 | CN102967752A Portable multifunctional test pen |
| 03/13/2013 | CN102967751A Novel test pencil |
| 03/13/2013 | CN102967750A High-energy electron charging current testing system |
| 03/13/2013 | CN102967749A Current sampler with amplifying circuit |
| 03/13/2013 | CN102967748A DC bus voltage detection circuit with high antijamming capability |
| 03/13/2013 | CN102967747A Temperature-compensation-free fiber optical current transformer and method of double-circuit interference closed loop detection |
| 03/13/2013 | CN102967746A Current detection device |
| 03/13/2013 | CN102967745A Current sensor arrangement |
| 03/13/2013 | CN102967744A Device for judging imbalance current of dc-dc converter and method thereof |
| 03/13/2013 | CN102967742A Electronic transformer within wide current detection range |
| 03/13/2013 | CN102967741A Voltage-type current transformer for data detection of high-voltage line |
| 03/13/2013 | CN102967740A All-fiber current transformer and current measuring method |
| 03/13/2013 | CN102012452B Method, device and circuit for detecting alternating voltage |
| 03/13/2013 | CN101968508B All-fiber current sensor and polarization state control method thereof |
| 03/13/2013 | CN101968507B Optical fiber voltage sensor and adjustment method thereof |
| 03/13/2013 | CN101846727B System and method for detecting loss of isolation while AC motor is operating |
| 03/13/2013 | CN101752832B Electric-leakage circuit breaker |
| 03/13/2013 | CN101087101B Power supplier reducing the energy consumption of power status display device |
| 03/12/2013 | US8396680 System and method for identifying issues in current and voltage measurements |
| 03/12/2013 | US8396607 Grid responsive control device |
| 03/12/2013 | US8395370 Capacitive coupling based sensor |
| 03/12/2013 | CA2789556A1 A hand tool |
| 03/07/2013 | WO2013033311A1 Instantaneous phasor determination for poly-phase electrical grids |
| 03/07/2013 | WO2013032062A1 System for monitoring a solar module |
| 03/07/2013 | WO2013031291A1 Current detection circuit module |
| 03/07/2013 | US20130060494 Method of calculating current correction formula for power strip, current measuring method, and power strip |
| 03/07/2013 | US20130057303 Device and method for detecting a clasping of a hand-held device by a hand |
| 03/07/2013 | US20130057267 Current sensor |
| 03/07/2013 | US20130057254 Current measurement circuit for inductor |
| 03/07/2013 | US20130057251 Reference potential adjustment device and a measuring device equipped with the same |
| 03/07/2013 | US20130057249 Method and Device for Detecting a Conductive Object |
| 03/07/2013 | DE102011081992A1 Device for estimating energy or power input of control device for energy or power input estimating arrangement of motor vehicle, has signal processing section, which has delta-sigma modulators operated with two analog measuring voltages |