| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 03/12/2002 | US6356624 Method and apparatus for detecting and measuring foreign voltages |
| 03/12/2002 | US6356097 Capacitive probe for in situ measurement of wafer DC bias voltage |
| 03/07/2002 | US20020027469 Bandgap voltage comparator used as a low voltage detection circuit |
| 03/07/2002 | DE10040629A1 Diskrete Niedrigststrommessung Discrete lowest current measurement |
| 03/06/2002 | EP1184670A2 Waveform measuring apparatus |
| 03/06/2002 | EP1183543A1 Electrical current sensor |
| 03/06/2002 | EP0862744B1 Concatenated magneto-optic field sensors |
| 03/06/2002 | CN2481031Y Multi-function power switching off alarm device |
| 03/06/2002 | CN2480851Y Speech sound automatic warning device for high voltage test |
| 03/06/2002 | CN2480850Y High-precision quick digital measurer for high-frequency unknown frequency sine wave vector |
| 03/06/2002 | CN1080477C Circuit for detecting overcharging and overdischarging |
| 03/05/2002 | US6353324 Electronic circuit |
| 03/04/2002 | CA2356778A1 Device and method for determining rare short circuit |
| 02/28/2002 | WO2001081889A3 Current measuring circuit suited for batteries |
| 02/28/2002 | WO2001075775A3 Arc fault current interrupter testing device |
| 02/28/2002 | US20020024458 Waveform measuring apparatus |
| 02/28/2002 | US20020024376 Circuit arrangement to determine the current in a load transistor |
| 02/28/2002 | US20020024334 Layered current sensor |
| 02/28/2002 | US20020024333 Current sensor |
| 02/28/2002 | DE10062190C1 Microcontroller-controlled end stage monitoring method compares actual output of end state with expected output calculated from supplied input signal |
| 02/28/2002 | DE10039192A1 Verfahren zum Messen der Schweißspannung an einer Heizwendel eines Heizwendelfittings sowie Heizwendel-Schweißvorrichtung hierfür A method for measuring the welding voltage at a heating coil of a heating coil and electrofusion apparatus therefor |
| 02/27/2002 | CN2479510Y Current indicator |
| 02/21/2002 | WO2002014879A1 Circuit for detecting a current passing through a consumer |
| 02/21/2002 | WO2002014878A2 Discrete lowest current measurement |
| 02/21/2002 | WO2001079864A3 Circuit arrangement for measuring the current consumption of a transistor-controlled load |
| 02/21/2002 | WO2001048491A3 Rms-dc converter having gain stages with variable weighting coefficients |
| 02/21/2002 | US20020021131 Battery monitoring system |
| 02/21/2002 | US20020021122 High resolution current sensing apparatus |
| 02/21/2002 | US20020021119 High resolution current sensing apparatus |
| 02/21/2002 | DE10039469A1 Schaltungsanordnung zum Erfassen eines Stroms durch einen Verbraucher Circuit arrangement for detecting a current through a consumer |
| 02/20/2002 | EP1180804A2 Hall-effect magnetoelectric converter |
| 02/20/2002 | CN2478116Y Writing type test pencil |
| 02/20/2002 | CN1079600C 数字电流差分系统 Digital current differential system |
| 02/19/2002 | US6348816 Tracking percent overload signal as indicator of output signal magnitude |
| 02/19/2002 | US6348798 Analog to digital voltage measuring device |
| 02/19/2002 | US6348788 High resolution current sensing apparatus |
| 02/19/2002 | US6348786 High voltage measuring device utilizing a poled optical fiber |
| 02/19/2002 | US6348783 DC/DC converter for suppressing effects of spike noise |
| 02/19/2002 | CA2106888C Releasable sensor for faulted circuit detector |
| 02/14/2002 | WO2001067117A3 Current transformer for a compensating current sensor |
| 02/14/2002 | US20020017928 Comparator circuit |
| 02/14/2002 | US20020017688 Semiconductor memory circuit |
| 02/13/2002 | EP1179410A1 Method for measuring the welding voltage in a heating coil of a heating coil fitting and heating coil welding apparatus therefore |
| 02/13/2002 | CN2476821Y Power detector |
| 02/13/2002 | CN1335509A Electric current detecting coil and electric current detecting method |
| 02/13/2002 | CN1335508A Non-contact electric current measuring instrument |
| 02/07/2002 | WO2002010776A1 Signal measurement |
| 02/07/2002 | WO2002010775A2 Event counter apparatus |
| 02/07/2002 | US20020016160 Amplitude-detecting method and circuit |
| 02/07/2002 | US20020014857 Voltage level indicator |
| 02/06/2002 | EP1177453A1 Apparatus and method for electrical measurements on conductors |
| 02/06/2002 | CN2476029Y Radio alarm device for high voltage transmission line |
| 02/06/2002 | CN1334628A Over-voltage and over-current warming circuit for protection unit of main distribution frame |
| 01/31/2002 | WO2002009058A1 Sensing downed power lines |
| 01/31/2002 | WO2002008771A1 Modular, integrated powerline monitor for non-high voltage applications |
| 01/31/2002 | US20020011867 Current detecting apparatus and its control method |
| 01/31/2002 | US20020011841 Hall-effect magnetoelectric converter |
| 01/31/2002 | US20020011833 Circuit test light |
| 01/31/2002 | US20020011831 Device for measuring an electric current by faraday effect |
| 01/31/2002 | US20020011822 Battery pack diagnostic method and battery pack diagnostic apparatus |
| 01/30/2002 | EP1176721A1 Rail to rail rectifying integrator |
| 01/30/2002 | EP1176425A1 Current detecting apparatus and its control method |
| 01/30/2002 | EP1175623A1 Insulator support current sensor |
| 01/30/2002 | EP0990162B1 Method for detecting the direction of rotation in three-phase networks |
| 01/30/2002 | CN1333874A Apparatus and method for remote current sensing |
| 01/29/2002 | US6343113 High impedance absolute telephone line voltage measurement circuit |
| 01/29/2002 | US6342849 Method and apparatus for peak detection of an analog signal |
| 01/24/2002 | US20020008951 Device and method for determining rare short circuit |
| 01/24/2002 | US20020008533 Electro-optic probe and magneto-optic probe |
| 01/24/2002 | US20020008505 Peak detector |
| 01/24/2002 | US20020008440 Method and apparatus for timed measurement of the voltage across a device in the charging circuit of a piezoelectric element |
| 01/24/2002 | DE10012871A1 Phase selective rectifier for instrumentation, has active low pass filter and switches measurement signal between branches |
| 01/23/2002 | EP1174720A2 Current sensing circuit |
| 01/23/2002 | EP1174719A1 Fibre optic current sensor |
| 01/23/2002 | EP1173921A1 Method and apparatus for controlling pulse width modulation device |
| 01/23/2002 | EP1173774A1 Current sensor working in accordance with the compensation principle |
| 01/23/2002 | EP1173738A1 Digital phase sensitive rectification of ac driven transducer signals |
| 01/17/2002 | WO2002004964A1 Sagnac interferometer current sensor |
| 01/17/2002 | WO2002004963A1 Fiber-optic current sensor |
| 01/17/2002 | WO2002004962A2 Circuit test light |
| 01/17/2002 | US20020005786 Combination current sensor and relay |
| 01/17/2002 | US20020005738 Transconductance amplifier circuit |
| 01/17/2002 | DE10032257A1 Verfahren und Vorrichtung zur offsetspannungsfreien Spannungsmessung einer Referenzspannungsquelle einer integrierten Halbleiterschaltung Method and apparatus for offset voltage free voltage measurement of a reference voltage source of a semiconductor integrated circuit |
| 01/17/2002 | CA2415933A1 Circuit test light |
| 01/16/2002 | EP1171776A1 Circuit with improved dynamic response for measuring current in pulse width modulated amplifiers |
| 01/16/2002 | EP1171338A1 Current sensor |
| 01/16/2002 | EP0981756B1 Generator for and method of measuring a voltage of the generator |
| 01/16/2002 | CN2472239Y Detecter for high voltage cutoff |
| 01/16/2002 | CN1331803A Method and arrangement for optical detecting electric current using light signals that have different wavelengths |
| 01/10/2002 | WO2002003086A2 Cell voltage monitor for a fuel cell stack |
| 01/10/2002 | CA2414222A1 Cell voltage monitor for a fuel cell stack |
| 01/09/2002 | EP1023773B1 Circuit for regulating the current supplied to an electromechanical component in a motor vehicle |
| 01/09/2002 | CN2470833Y Current flow-direction indicator |
| 01/09/2002 | CN2470832Y Current testing device |
| 01/09/2002 | CN1330272A High-voltage charge indicator with electric field effect |
| 01/09/2002 | CN1077690C Process for determining the state of charge of accumulator and method for determining gradul aged of accumulator |
| 01/09/2002 | CN1077688C Valtage-change detecting circuit and input device of alarm thereof |
| 01/08/2002 | US6337571 Ultra-high-frequency current probe in surface-mount form factor |
| 01/08/2002 | US6337569 Apparatus for detecting earthed side of AC power Supply |
| 01/08/2002 | US6336591 Signalling between independently powered electrical circuit cards |