| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
|---|
| 08/05/2009 | CN201285411Y Graded DC signal tri-terminal isolation measurement apparatus for remote measuring system |
| 08/05/2009 | CN201285410Y A current sensor |
| 08/05/2009 | CN201285409Y Phase voltage detection circuit |
| 08/05/2009 | CN201285292Y 多功能显示电源供应器 Multi-function display Power Supply |
| 08/05/2009 | CN201284648Y Real-time wireless monitoring device for oil extraction well |
| 08/05/2009 | CN101501975A Low power wide dynamic range rms-to-dc converter |
| 08/05/2009 | CN101499734A Application of rectifying conversion module in AC current meter |
| 08/05/2009 | CN101499730A Apparatus and method for detecting switch current of power converter |
| 08/05/2009 | CN101499676A Vehicular power cell diagnosis method and alarm thereof |
| 08/05/2009 | CN101499672A Battery system for vehicle, on-vehicle battery module, and cell controller |
| 08/05/2009 | CN101499659A Transforming plant distributed state estimation method based on Kirchhoff's current law |
| 08/05/2009 | CN101498766A Test apparatus for charging function of electronic product |
| 08/05/2009 | CN101498748A Coaxial pulse voltage test device |
| 08/05/2009 | CN101498747A Wave crest and wave trough detection method and circuit |
| 08/05/2009 | CN101498746A Voltage regulating circuit |
| 08/05/2009 | CN101498745A Current detecting device and method |
| 08/05/2009 | CN101498742A Automatic signal judgment method and time sequence difference automatic measuring method |
| 08/05/2009 | CN101498402A Electric torch with electric torch electric quantity display apparatus |
| 08/05/2009 | CN101496724A Method and system for distortion compensation |
| 08/05/2009 | CN100524401C Electro-optical apparatus, method for driving electro-optical apparatus, method for monitoring voltage, and electronic device |
| 08/05/2009 | CN100523856C Electronic component simulated fixture and power supply abnormity detection method |
| 08/05/2009 | CN100523840C Process for real time recognizing voltage stability of electrified wire netting trough recognizing weak links of electric network |
| 08/05/2009 | CN100523829C AC power system voltage sensor |
| 08/05/2009 | CN100523828C Voltage measurer with wide measuring range |
| 08/05/2009 | CN100523827C Voltage measuring instrument with multiple range |
| 08/04/2009 | US7570045 Attachment device and method for fastening electrical cable monitoring instruments to electrical cables |
| 07/30/2009 | US20090191820 Signal value holding apparatus, signal value holding method, signal value control system, signal value control method, playback apparatus, and playback method |
| 07/30/2009 | US20090190376 Voltage detection device and voltage detection method |
| 07/30/2009 | US20090189597 Instrument for testing an electrical circuit |
| 07/30/2009 | US20090189592 Identification Of Integrated Circuit |
| 07/30/2009 | DE202009005966U1 Adaptierbares Spannungsprüfgerät für Hochspannungsanlagen Adaptable voltage sensing device for high voltage systems |
| 07/30/2009 | DE19849250B4 Spannungsprüfgerät Voltage sensing device |
| 07/30/2009 | DE102008055696A1 Elektronische Schaltungseinrichtung zur Erfassung eines Detektionselementstroms und/oder einer Temperatur in diesem Detektionselement Electronic circuit means for detecting a current detection element and / or a temperature detecting element in this |
| 07/30/2009 | DE102008006301A1 Schaltungsanordnung zum Detektieren von Spannungsänderungen und Verfahren zum Detektieren einer Spannungsänderung Circuit arrangement for detecting voltage changes and method for detecting a voltage change |
| 07/30/2009 | DE102008006183A1 Vorrichtung zur Strommessung A device for current measurement |
| 07/30/2009 | DE102008005663A1 Device for measuring electrical alternating voltage, has input voltage divisors that are connected with associated voltage measuring device by given connecting impendence |
| 07/30/2009 | DE102008004804A1 Method for recognizing error in execution of tension connection of electrical transformer, involves filtering values with filter constants |
| 07/29/2009 | CN201281726Y High voltage detector |
| 07/29/2009 | CN201281725Y Fiber-optical type voltage measurement device |
| 07/29/2009 | CN101493483A Battery voltage detection circuit |
| 07/29/2009 | CN101493482A Single-phase harmonic current detecting method |
| 07/29/2009 | CN100520988C Device for detecting interferences or interruptions of the inner fields smoothing layer of medium or high voltage cables |
| 07/29/2009 | CN100520418C LAN cable line testing system and patchcord length measurement for a LAN tester |
| 07/28/2009 | US7568017 Generating a configuration diagram based on user specification of a task |
| 07/28/2009 | US7567074 Measuring device for measuring differential current, trip module comprising one such measuring device and switchgear unit having one such module |
| 07/23/2009 | WO2009060361A3 Current integrator with wide dynamic range |
| 07/23/2009 | US20090187361 Transient detection circuit for esd protection |
| 07/23/2009 | DE102008058440A1 Vorrichtungen und Verfahren zum Abtasten und Regeln von Phasenströmen und Elektromotorantriebssysteme Devices and methods for sensing and regulation phase currents and electric motor drive systems |
| 07/22/2009 | EP2081213A1 Drive and measurement circuit for a photomultiplier |
| 07/22/2009 | EP2081036A2 Testing apparatus |
| 07/22/2009 | CN201277999Y Positive and negative wave form detection circuit for electric grid and refrigerator with such circuit |
| 07/22/2009 | CN201277998Y Power-on indication circuit for electric power |
| 07/22/2009 | CN201277997Y Full parameter on-line monitoring apparatus for overhead transmission line and lightning arrester current |
| 07/22/2009 | CN201277996Y Real-time recording apparatus for welding machine performance |
| 07/22/2009 | CN201277995Y Portable electricity fraudulent use inspection tool for electric power network |
| 07/22/2009 | CN201277994Y Simple voltage test control board |
| 07/22/2009 | CN201277993Y Magnetic induction current sensor for electric vehicle controller |
| 07/22/2009 | CN101490564A Electric potential sensor |
| 07/22/2009 | CN101487858A 1000kV extra-high voltage AC non-contact type electricity checking method and apparatus |
| 07/22/2009 | CN101487857A High voltage electrified display locking apparatus |
| 07/22/2009 | CN101487856A Method for measuring current by utilizing strong magnetic resistance |
| 07/22/2009 | CN100517156C Voltage detecting circuit |
| 07/22/2009 | CN100516896C Safe monitoring method facing high power contact and its device |
| 07/22/2009 | CN100516895C Discharge lamp drive device and voltage detection circuit using same |
| 07/22/2009 | CN100516894C Equipment for sensing state of chamber door |
| 07/22/2009 | CN100516893C Programmable voltage monitoring circuit |
| 07/22/2009 | CN100516892C Voltage measurer for overcoming variation influence |
| 07/21/2009 | US7565253 High-voltage power supply control system and wireless controller and method therefor |
| 07/21/2009 | US7564271 Sense amplifier and electronic apparatus using the same |
| 07/16/2009 | WO2009088272A2 The method for measuring soc of a battery in a battery management system and the apparatus thereof |
| 07/16/2009 | WO2009088271A2 The method for measuring soc of a battery in battery management system and the apparatus thereof |
| 07/16/2009 | WO2009088129A1 Input signal level detection apparatus and method |
| 07/16/2009 | US20090179629 On-chip current sensing methods and systems |
| 07/16/2009 | US20090179621 Overcurrent detection circuit |
| 07/15/2009 | EP1325394B1 Wide ratio autotransformer-type current ranging |
| 07/15/2009 | CN201273919Y High voltage live display device |
| 07/15/2009 | CN201273918Y Flow output unit |
| 07/15/2009 | CN101484813A Measuring apparatus |
| 07/15/2009 | CN100514072C Multiple loop multifunction power comprehensive communication instrument |
| 07/14/2009 | US7560714 Sensor and system for sensing an electron beam |
| 07/09/2009 | WO2009085727A2 Multiple capacitance measuring circuits and methods |
| 07/09/2009 | US20090177410 Real-time monitoring device and operation method thereof |
| 07/09/2009 | US20090174393 Apparatus, system, and method determining voltage, current, and power in a switching regulator |
| 07/09/2009 | US20090174392 Circuit arrangement and corresponding method for voltage reference and/or for current reference |
| 07/09/2009 | US20090174391 Zero current detector for a dc-dc converter |
| 07/09/2009 | DE102008003458A1 Electric current determining device for energy storage i.e. battery, of motor vehicle, has sensor resistor electrical conductively connected with cable through contact surface that is oriented parallel to cable longitudinal direction |
| 07/09/2009 | DE102008003338A1 Electric current determining device for use in cable i.e. earth cable, has cable provided with cable insulation, where cable insulation is formed such that cable insulation partially encloses measuring element and/or electronic system |
| 07/09/2009 | DE102005006867B4 Halbleiterschalter mit Spannungsüberwachung Semiconductor switch with voltage monitoring |
| 07/09/2009 | DE102004015023B4 Augendiagramm-Analysator und Verfahren zum Ermitteln von Zeit-Spannungs-Meßpunkten für die Augendiagramm-Analyse Eye diagram analyzer and method for determining time-voltage measurement points for the eye diagram analysis |
| 07/08/2009 | EP1636373A4 Biochip devices for ion transport measurement, methods of manufacture, and methods of use |
| 07/08/2009 | EP1451595B1 Electrodynamic sensors and applications thereof |
| 07/08/2009 | CN201269903Y 杂散电流检测装置 Stray current detection device |
| 07/08/2009 | CN201269902Y Break-down detection circuit for electronic electrical energy meter |
| 07/08/2009 | CN201269901Y Over-voltage monitoring device for electric grid |
| 07/08/2009 | CN201269900Y High-frequency uni-polar large current pulse detection circuit |
| 07/08/2009 | CN101477146A Stray current tester and stray current analysis method |
| 07/08/2009 | CN101477145A AC great current sensor |
| 07/08/2009 | CN101477144A Confirmation for filament emission current computing method of vacuum fluorescent display |
| 07/08/2009 | CN100510757C Over-voltage indication circuit and system circuit and method |
| 07/07/2009 | US7557562 Inverted magnetic isolator |