| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 04/19/2005 | US6882193 Voltage detection circuit, power-on/off reset circuit, and semiconductor device |
| 04/14/2005 | WO2004111662A3 Integrated circuit device for monitoring power supply |
| 04/14/2005 | US20050077906 Systems and methods for measuring picoampere current levels |
| 04/14/2005 | US20050077890 Multiplexed dual-purpose magnetoresistive sensor and method of measuring current and temperature |
| 04/14/2005 | DE10343179A1 Current measurement device, especially for monitoring the current of an automotive battery, has voltage measurement means assigned to at least one of a number of consumer fuses |
| 04/14/2005 | DE102004022575A1 Verfahren zum Berechnen der in einer Vorrichtung induzierten Spannung A method for calculating the voltage induced in a device |
| 04/13/2005 | CN2692875Y Socket with abnormal voltage indicator |
| 04/13/2005 | CN2692680Y Electrical intelligent speech reporting device |
| 04/13/2005 | CN2692679Y Digital high-voltage acoustooptical electroscope |
| 04/12/2005 | US6879940 Method and apparatus for remotely testing semiconductors |
| 04/12/2005 | US6879919 DSP assisted peak capture circuit and method |
| 04/12/2005 | US6879478 Surge counter/detector apparatus, system and method |
| 04/12/2005 | US6879178 Measuring current on a die |
| 04/12/2005 | CA2233880C Verdet constant temperature-compensated current sensor |
| 04/07/2005 | WO2005032016A2 Rapid exchange mounting system for testing wireless networks |
| 04/07/2005 | WO2005031955A1 A switch mode power supply |
| 04/07/2005 | WO2005031374A1 Method and device for measuring voltage |
| 04/07/2005 | WO2004074850A3 Liquid-crystal voltage indicator |
| 04/07/2005 | US20050075808 Method and system for verifying voltage in an electrical system |
| 04/07/2005 | US20050075105 Rapid exchange system for testing wireless networks |
| 04/07/2005 | US20050075006 Rapid exchange system for testing wireless networks |
| 04/07/2005 | US20050073327 Range resistors for AC-DC transfer measurements |
| 04/07/2005 | US20050073294 Current monitoring/control circuit |
| 04/07/2005 | US20050073271 Load driving circuit with current detection capability |
| 04/07/2005 | US20050072888 Rapid exchange system for testing wireless networks |
| 04/07/2005 | DE10334886B3 Signal evaluation circuit for AC or DC signals for environmental measurement applications using operational amplifiers for precision rectification of AC signals |
| 04/06/2005 | EP1521364A1 Method and apparatus for filtering signals generated by a piezoelectric accelerometer, and application in a portable object such as a watch |
| 04/06/2005 | EP1520319A2 Non-linear transmission line using varactors and non-parallel waveguide |
| 04/06/2005 | CN2690893Y Magnetic tape type thunder and lightning current gradient record detector |
| 04/06/2005 | CN1603850A Automatic test method for maximum output voltage, current and power magnitude of electrical equipment |
| 04/06/2005 | CN1195987C Circuit and method for measuring in-circuit resistance and current |
| 04/05/2005 | US6876937 Displaying a number of measurement curves |
| 04/05/2005 | US6876190 Current sense apparatus and method |
| 04/05/2005 | US6876188 Electro-optical voltage sensor for high voltages |
| 04/05/2005 | US6876184 Circuit arrangement for measuring the current consumption of a transistor-controlled load |
| 03/31/2005 | WO2005029113A1 Method of determining a zero point of a current sensor |
| 03/31/2005 | WO2005029104A1 Electronic switching circuit, switching circuit test arrangement and method for determining the operativeness of an electronic switching circuit |
| 03/31/2005 | WO2005029101A2 Method and system for verifying voltage in an electrical system |
| 03/31/2005 | WO2005029100A1 Beam current sensor |
| 03/31/2005 | US20050071133 Method and device for filtering signals produced by an accelerometer of the piezo-electric type, and application to a portable object such as a watch |
| 03/31/2005 | US20050071100 Method and apparatus for improved detection of multisynchronous signals title |
| 03/31/2005 | US20050071094 System, method and computer program product for configuring power supply apparatus |
| 03/31/2005 | US20050071093 Method and system for monitoring power supplies |
| 03/31/2005 | US20050068048 Beam profile monitor with accurate horizontal and vertical beam profiles |
| 03/31/2005 | US20050068020 Method and apparatus for determining a current in a conductor |
| 03/31/2005 | DE102004032697A1 Energieversorgungs-Steuergerät mit einer hochzuverlässigen Überstrom-Erfassungsschaltung Power supply control device with a highly reliable overcurrent detection circuit |
| 03/31/2005 | DE102004018636A1 System und Verfahren zum Messen eines Stroms System and method for measuring a current |
| 03/31/2005 | DE102004018635A1 Verfahren und System zur Kalibrierung eines spannungsgesteuerten Oszillators (VCO) A method and system for calibrating a voltage controlled oscillator (VCO) |
| 03/30/2005 | EP1438593A4 Method and apparatus for determining a current in a conductor |
| 03/30/2005 | CN2689413Y Acquiring apparatus for surface current leakage of high-voltage transmitting line insulator |
| 03/30/2005 | CN2689245Y Intelligent AC digital millivolt meter |
| 03/30/2005 | CN2689244Y Transformer parameter long-range monitoring system of industrial GSM/GPRS |
| 03/30/2005 | CN2689243Y Electronic voltage sensor with double shielding electode |
| 03/30/2005 | CN2689242Y Coil and magnetic core assembly positioning rack of current sensor |
| 03/30/2005 | CN2689241Y Single-power supply circuit of current and voltage sensor |
| 03/30/2005 | CN2689240Y Double detecting current sensors |
| 03/30/2005 | CN2689239Y Split inputting current sensors |
| 03/30/2005 | CN2689237Y Coil and magnetic core assembly of current sensor without magnetic core protective cover |
| 03/29/2005 | US6873193 Two-level supply voltage detection circuit |
| 03/24/2005 | WO2005026759A1 Calibration comparator circuit |
| 03/24/2005 | WO2005001388A3 Method and apparatus for real time clock (rtc) brownout detection |
| 03/24/2005 | US20050065743 Methods and apparatus for retrieving energy readings from an energy monitoring device |
| 03/24/2005 | US20050063116 Power cord with monitor circuit |
| 03/24/2005 | US20050062461 Identification of average total loss and switching loss in duty cycle and/or frequency variation signals acquired across a switching device using a DSO |
| 03/23/2005 | CN2687683Y Intelling high-voltage hot-line display and detection device |
| 03/23/2005 | CN2687682Y Clamp type electricity detecting meter |
| 03/23/2005 | CN1598599A High-voltage split-phase peak contact electroscopy |
| 03/23/2005 | CN1194456C 电池状态监测电路以及电池装置 Battery state monitoring circuit and battery device |
| 03/22/2005 | US6870400 Supply voltage detection circuit |
| 03/22/2005 | US6870372 Abnormality detection apparatus of comparator |
| 03/22/2005 | US6870358 Methods and apparatuses for peak detection among multiple signals |
| 03/17/2005 | WO2005024444A1 Ac current sensor using triac and method thereof |
| 03/17/2005 | WO2004105224B1 A current rectifier circuit, its use and method in a parallel processor network |
| 03/17/2005 | US20050060098 Methods for calculating the voltage induced in a device |
| 03/17/2005 | US20050057268 Plasma probe, methods for fabricating the same, and methods for using the same |
| 03/17/2005 | US20050057243 Dual voltage circuit tester |
| 03/17/2005 | US20050057241 Band distribution inspecting device and band distribution inspecting method |
| 03/17/2005 | US20050057240 Control device |
| 03/17/2005 | DE10337913A1 Meß- oder Testgerät mit austauschbaren Funktionseinheiten Measuring or testing apparatus with replaceable units |
| 03/17/2005 | DE10226412B4 Verfahren zur Kalibrierung von Spannungsmessmitteln und zur Messung von Spannungen periodischer Spannungssignale sowie Mess- und Kalibliervorrichtung Method for the calibration of voltage measuring means for measuring voltages and periodic voltage signals and measuring and Kalibliervorrichtung |
| 03/16/2005 | CN2685887Y High voltage and arrester fault indicator |
| 03/16/2005 | CN1596051A Automatic monitoring apparatus for operating state of navigational aid lamp |
| 03/16/2005 | CN1193237C Measuring test instrument voltage control system for auxiliary equipment |
| 03/16/2005 | CN1193235C 电压传感器 Voltage sensor |
| 03/15/2005 | US6868430 Arithmetic unit for correcting detection output in which corrected operation output is sensitive to mechanical factors |
| 03/15/2005 | US6867624 Circuit for voltage level detection |
| 03/15/2005 | US6867576 Current sense circuit for motor drive |
| 03/10/2005 | WO2005022174A1 System for detecting and locating faults in an electric fence |
| 03/10/2005 | WO2005021281A1 The way of sending wishes, greetings and invitations and the packet for the realization of the way of sending wishes, greetings and invitations |
| 03/10/2005 | US20050052809 AFCI temperature compensated current sensor |
| 03/10/2005 | US20050052264 Measured value output device, measured value monitor, current value output device, and current monitor |
| 03/10/2005 | US20050051425 Electroplating apparatus with functions of voltage detection and flow rectification |
| 03/09/2005 | EP1512982A2 Sensing devices and sensing circuits |
| 03/09/2005 | CN2684202Y AC/DC light spot conversion type low-voltage electroscope |
| 03/09/2005 | CN2684200Y Programmable digital display electrical measuring meter |
| 03/09/2005 | CN1590967A Sensing services and sensing circuits |
| 03/09/2005 | CN1192237C Circuit for detecting level or level variation of input direct voltage |
| 03/03/2005 | WO2005019847A1 Measuring or test device comprising interchangeable functional units |
| 03/03/2005 | WO2004099630A3 Combination hand tool and electrical testing device |
| 03/03/2005 | US20050049806 Method for canceling transient errors in unsynchronized digital current differential transmission line protection systems |