| Patents for G01R 7 - Instruments capable of converting two or more currents or voltages into a single mechanical displacement (437) |
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| 01/20/2015 | US8937497 Power supply monitor |
| 01/06/2015 | US8928311 Electromagnetic induction type absolute position measuring encoder |
| 01/06/2015 | US8928193 Stepping motor for meter |
| 12/09/2014 | US8907670 Metering device and metering method |
| 10/07/2014 | US8855671 System and method for determining position |
| 08/26/2014 | US8816708 Electronic test system and associated method |
| 07/23/2014 | EP2757381A1 I/O device with a current flow monitoring device and use of same |
| 06/24/2014 | US8760148 Pulse modulated PIM measurement instrument |
| 06/10/2014 | US8749226 Line-powered instrument transformer |
| 05/13/2014 | US8723506 Utility meter with capacitor charging circuit responsive to a regulated DC voltage |
| 03/12/2014 | CN103635783A Micro flow meter and method for producing same |
| 03/05/2014 | EP2702368A1 Micro flow meter and method for producing same |
| 02/18/2014 | US8653825 Power measurement with a signal generator |
| 01/22/2014 | EP2686769A1 Display device having a stepper motor and a watchdog timer |
| 01/07/2014 | US8624578 Branch current monitor with configuration |
| 12/18/2013 | EP0756175B1 Indicating instrument having stepping motor |
| 12/17/2013 | US8612792 Power measurement device |
| 12/04/2013 | CN103430154A Display device having a stepper motor and a watchdog timer |
| 11/26/2013 | US8593135 Low-cost power measurement circuit |
| 10/15/2013 | US8558534 Rotational angle detection device and electric power steering system |
| 09/11/2013 | CN102288827B Circuit and methods for detecting resistance value, temperature and state of motor winding in real time |
| 07/23/2013 | US8493231 Power meter having fault tolerance |
| 02/05/2013 | US8368386 Meter socket connection methods and systems for local generators or monitoring connections |
| 01/02/2013 | CN102854398A Measuring method of parasitic capacitances and calculating method of thickness of gate medium layer |
| 11/01/2012 | WO2012146756A1 Micro flow meter and method for producing same |
| 10/02/2012 | US8278913 Apparatus and method for position sensing |
| 09/20/2012 | WO2012123393A1 Display device having a stepper motor and a watchdog timer |
| 09/18/2012 | US8269481 Automatic capture and storage of measurements in digital multimeter |
| 09/11/2012 | US8264708 Printing system |
| 09/04/2012 | US8258778 Simplified micro-magnetic sensor for acceleration, position, tilt, and vibration |
| 08/02/2012 | DE19544526B4 Anzeigevorrichtung mit einem von einem Schrittmotor angetriebenen Zeiger Display device having a pointer driven by a stepping motor |
| 07/10/2012 | US8219331 Electronic device and method for evaluating a variable capacitance |
| 07/03/2012 | US8212549 Ammeter with improved current sensing |
| 06/14/2012 | DE10135417B4 Meßgerät mit einer Einstellfunktion für eine Zeiger-Nullstellung Meter with a setting function for a pointer-zero |
| 06/12/2012 | US8198884 Mini-measurement display for digital multimeter |
| 05/30/2012 | CN102480118A 一种用于大功率电阻器的智能监控装置 Intelligent monitoring device for a high-power resistor |
| 05/23/2012 | CN101533039B Return-to-zero controlling method of meter hands and device therefor |
| 04/17/2012 | US8159210 System for automatically detecting power system configuration |
| 02/14/2012 | US8115476 Apparatus for providing energy usage and energy cost data for an electrical device |
| 12/21/2011 | CN102288827A 电机绕组的阻值、温度、状态的实时检测电路及其方法 Real-time detection circuit and method of the motor winding resistance, temperature, state of |
| 12/13/2011 | US8076926 Rotary switch memory for digital multimeter |
| 11/01/2011 | US8049488 Electrical power metering device and method of operation thereof |
| 10/26/2011 | EP1468486B1 Method and apparatus for detecting a stall condition in a stepping motor |
| 10/18/2011 | US8040664 Meter with integrated high current switch |
| 06/30/2011 | US20110156698 Phase canceling current transducer |
| 05/17/2011 | US7944199 Voltage-measuring circuit and method |
| 05/10/2011 | US7940039 Transformer meter and system for using same |
| 04/05/2011 | US7919960 Electricity meter capable of minimizing the risk of data destruction from lightning or surge |
| 02/24/2011 | WO2010123332A3 Data communication using 2d bar codes |
| 10/28/2010 | WO2010123332A2 Data communication using 2d bar codes |
| 10/28/2010 | CA2759800A1 Data communication using 2d bar codes |
| 06/29/2010 | US7747400 VA metering in polyphase systems |
| 05/25/2010 | US7723979 Integrated energy metering system |
| 05/11/2010 | US7714568 Power supply |
| 05/04/2010 | US7710107 Force or field balance device and method for measuring position |
| 05/04/2010 | US7710105 Circuit reset testing methods |
| 05/04/2010 | US7710104 Out-of-line measurement of a current flowing through a load |
| 04/06/2010 | US7693678 Integrated circuit temperature measurement methods and apparatuses |
| 03/23/2010 | US7683605 Test pulses for enabling revenue testable panel meters |
| 03/16/2010 | US7679356 Digital multimeter having improved recording functionality |
| 12/01/2009 | US7626375 System and method for configuring a display for a digital multimeter |
| 11/24/2009 | US7622911 Electrical power metering device and method of operation thereof |
| 10/27/2009 | US7609051 Energy metering system |
| 09/16/2009 | CN101533039A Return-to-zero controlling method of meter hands and device therefor |
| 08/27/2009 | US20090212764 Test pulses for enabling revenue testable panel meters |
| 07/01/2009 | EP2075589A2 Drive control device for a stepper motor and drive control method of the stepper motor |
| 05/05/2009 | US7528595 Method for detecting and correcting wiring errors in power monitoring applications |
| 04/09/2009 | DE10027889B4 Kreuzspul-Anzeigeinstrument A crossed coil indicating instrument |
| 03/31/2009 | US7511472 Power measuring apparatus |
| 03/24/2009 | US7508190 Test pulses for enabling revenue testable panel meters |
| 03/17/2009 | US7504821 Auxiliary power supply for supplying power to additional functions within a meter |
| 03/12/2009 | US20090066317 Transformer Meter and System for Using Same |
| 01/08/2009 | WO2009003395A1 A wide range and high accuracy on-line current and temperature measuring device and method |
| 01/06/2009 | US7474088 Power monitoring system |
| 01/06/2009 | US7474087 Energy meter system and method for calibration |
| 12/02/2008 | US7459905 Rotation detector having sensor chip and biasing magnet |
| 10/15/2008 | CN100426332C Short circuit warning method for non-recoverable linear temperature sensing detector |
| 07/31/2008 | DE19837824B4 Zeigerinstrument mit Zeigerpositionsabgleichfunktion Indicator with hand position adjustment function |
| 07/22/2008 | US7402993 Electrical profile monitoring system for detection of atypical consumption |
| 07/01/2008 | US7394240 Current sensor |
| 05/08/2008 | DE19926088B4 Antriebseinheit für Kreuzspulen-Anzeigeinstrument Drive unit for cross-coil meter |
| 04/29/2008 | US7365528 Method and apparatus of voltage measurement using flying capacitor and switching circuits |
| 03/25/2008 | US7348769 Electricity meter with power supply load management |
| 02/26/2008 | US7336065 Energy device with an extended dynamic range on current readings |
| 01/24/2008 | US20080018325 Apparatus and method for measuring an output power of a power supply |
| 12/27/2007 | US20070296400 Voltage generating apparatus, current generating apparatus, and test apparatus |
| 12/27/2007 | DE19610059B4 Anzeigeinstrument und Verfahren zum Betrieb desselben The same display instrument and method for operating |
| 12/27/2007 | DE10043110B4 Anzeigevorrichtung mit einer transparenten Abdeckung A display device comprising a transparent cover |
| 12/25/2007 | US7312602 Electrical meter with retractable leads |
| 12/05/2007 | CN200987010Y Multifunctional metering sockets |
| 12/04/2007 | US7304467 Circuit for simultaneous testing of electricity meters with interconnected current and voltage circuits |
| 11/20/2007 | US7298134 Electrical-energy meter adaptable for optical communication with various external devices |
| 10/18/2007 | DE19906068B4 Anzeigeinstrument der Kreuzspulenbauart Gauge the cross-coil type |
| 09/20/2007 | US20070216397 Method of testing power-on reset circuit and receiving circuit resetting capability |
| 09/04/2007 | US7265532 Electronic electricity meter and method of assembly |
| 08/30/2007 | US20070200552 Energy meter device and calibration method |
| 08/21/2007 | US7259547 System and method to use dynamic feedback of analog to digital converter sample rate to adaptively lock the sample rate to input frequency |
| 08/07/2007 | US7253605 Configurable utility meter connection interface |
| 07/11/2007 | CN1326319C Driving device for step-by-step motor |
| 07/03/2007 | US7239125 Method and apparatus for electronic meter testing |