| Patents for G01R 35 - Testing or calibrating of apparatus covered by the other groups of this subclass (8,105) |
|---|
| 09/23/1992 | CN2116919U Current signal analysing device |
| 09/15/1992 | US5148101 Method and apparatus for detecting and compensating for reverse rotation and creep of eddy current disk |
| 08/26/1992 | CN1018028B Method of and apparatus for determining ac calibration errors |
| 08/19/1992 | EP0499174A1 Automatic skew calibration for multi-channel signal sources |
| 08/19/1992 | CN2113497U Multipurpose calibrating apparatus for automatic control system |
| 08/18/1992 | US5140273 Electrode system to facilitate dielectric measurement of materials |
| 08/12/1992 | CN2112835U Automatic testing table for electric power meter |
| 08/11/1992 | US5138267 Method of calibrating output levels of a waveform analyzing apparatus |
| 08/11/1992 | CA1306286C Adjustment circuit and method for solid-state electricity meter |
| 07/29/1992 | EP0496580A2 Display device testing circuit |
| 07/29/1992 | EP0496147A1 Method of precise measurement of small resistance values |
| 07/28/1992 | US5134576 Method and apparatus for the fine adjustment of a potentiometer |
| 07/15/1992 | EP0494427A1 Electricity meter |
| 07/10/1992 | CA2058050A1 Electricity meter |
| 07/07/1992 | US5128609 Setting up of quadrature signals |
| 06/30/1992 | CA1304454C Calibration system for blood pressure transducer |
| 06/23/1992 | US5125008 Method and apparatus for autoranging, quadrature signal generation, digital phase reference, and calibration in a high speed rf measurement receiver |
| 06/23/1992 | US5124624 Arrangement for electrical measurement |
| 06/17/1992 | EP0490880A2 Negative feedback power supply apparatus |
| 06/17/1992 | EP0490711A1 Electrical measuring device with two configurations of connection |
| 06/17/1992 | EP0490303A2 Method for calibrating the thresholds of a voltage indicator indicating a tension stepwise and especially big visual display |
| 06/16/1992 | US5122996 Real-time, uninterrupted time-interval to voltage converter |
| 06/16/1992 | US5122725 Negative feedback power supply apparatus |
| 06/09/1992 | US5121337 Method for correcting spectral data for data due to the spectral measurement process itself and estimating unknown property and/or composition data of a sample using such method |
| 06/09/1992 | US5121064 Method and apparatus for calibrating resistance bridge-type transducers |
| 06/09/1992 | US5121055 Verification of the operation of a biomagnetometer |
| 06/04/1992 | DE4038211A1 Calibrating LF signal source of audiometer - storing reference levels in memory and adjusting LF source output w.r.t data for partic. transducer |
| 05/19/1992 | US5115407 Integrated certification-calibration system for a testing system having multiple test instruments |
| 05/12/1992 | US5113130 Testing operation of electric energy meter optics system |
| 04/30/1992 | WO1992007275A1 Spectral data measurement and correction |
| 04/22/1992 | EP0481096A1 Method for determining the frequency amplification of a voltage-to-frequency converter |
| 04/15/1992 | EP0480834A1 Shielded cable forming calibration element and manufacturing process of such an element |
| 04/15/1992 | EP0480161A2 Method for calibrating a measuring apparatus |
| 04/15/1992 | EP0479918A1 Method and apparatus for photoinductive imaging |
| 04/13/1992 | WO1992007326A1 Method of estimating property and/or composition data of a test sample |
| 04/08/1992 | CN2101251U Portable transformer ratio bridge |
| 04/07/1992 | US5103075 Process for the adjustment of electronic circuits |
| 04/01/1992 | CN1016103B Apparatus and method for correcting electric measuring device from inner side |
| 03/24/1992 | US5099200 I.f. calibration system |
| 03/18/1992 | CN2099321U Portable multifunction signal generator/tester |
| 03/11/1992 | EP0474236A2 Magnetic flux locking apparatus |
| 02/26/1992 | EP0472238A1 Measuring instrument and time base circuit suitable for use in such a measuring instrument |
| 02/25/1992 | US5091709 Electrically short air line for network analyzer calibration |
| 02/20/1992 | WO1992002783A1 Measurement value sensor |
| 02/19/1992 | EP0242700B1 Ac level calibration method and apparatus |
| 02/18/1992 | US5089979 Apparatus for digital calibration of detachable transducers |
| 01/29/1992 | CN2094750U Microcomputer comtrolled corrective frequency standard device |
| 01/22/1992 | EP0466939A1 Ic testing device |
| 01/15/1992 | CN1057909A Multifunction intelectual electric quantity measurer |
| 01/07/1992 | US5079707 Integrated certification-calibration system for a testing system having multiple test instruments |
| 01/07/1992 | US5079506 Checking circuit for checking the normal operation of a sensor |
| 01/01/1992 | CN2092107U Detector for wrong wiring of watt-hour meter |
| 12/12/1991 | DE4025332C1 Testing HF appts. e.g. receiver or spectrum analyser - using signal generator supplying digital test signals to interfaces of digital processing part of appts. |
| 12/04/1991 | CN1015023B Method of measuring impedance, especially low-voltage capacity impedance |
| 12/03/1991 | CA1292775C Method for updating the scale factor of an apparatus using the faraday effect to measure the intensity of an alternating current |
| 11/21/1991 | EP0456868A1 Error compensation device for an induction type electricity meter |
| 10/31/1991 | WO1991016638A1 Method and apparatus for photoinductive imaging |
| 10/31/1991 | DE4113583A1 Measuring control for capacitor testing and sorting - using standard reference component to provide mean measurement value and standard deviation |
| 10/31/1991 | DE4013089A1 IC engine control input voltage error corrected measurement - deriving accurate value of auxiliary parameter and replacement of reference parameter with derived digital ratio |
| 10/23/1991 | CN2087347U Multifunctional testing-calibrating instrument for electrical instruments |
| 10/17/1991 | DE4026279C1 Circuit for meter test equipment - with transformer primary winding controlled by amplifier to balance secondary winding voltage |
| 10/02/1991 | CN2085972U Phase-interruption time-meter for three-phase electric meter |
| 10/01/1991 | US5053716 Device for calibrating and testing ring-shaped current clamps |
| 09/19/1991 | WO1991009317A3 Comb generator, device and process for calibrating measurement sections |
| 09/10/1991 | WO1991014313A1 Method and apparatus for autoranging, quadrature signal generation, digital phase reference, and calibration in a high speed rf measurement receiver |
| 09/10/1991 | US5047725 Verification and correction method for an error model for a measurement network |
| 09/10/1991 | CA2077657A1 Method and apparatus for autoranging, quadrature signal generation, digital phase reference, and calibration in a high speed rf measurement receiver |
| 08/13/1991 | US5039872 Digitally synthesized audio frequency voltage source |
| 08/08/1991 | WO1991011728A1 Ic testing device |
| 07/31/1991 | CN1053499A Voltage mutual inductor serial addition circuit |
| 07/24/1991 | CN2081539U Automatic numeral type electric metering on-line detecting instrument |
| 07/17/1991 | EP0437034A2 I.F. calibration method |
| 07/03/1991 | CN1052735A Standard source type thin film coaxial thermoelectric conveter |
| 06/27/1991 | WO1991009320A1 Process and device for testing a hall sensor system |
| 06/27/1991 | WO1991009317A2 Comb generator, device and process for calibrating measurement sections |
| 06/26/1991 | EP0433995A2 Remote instrument testing system |
| 06/20/1991 | DE3941473A1 Verfahren und vorrichtung zur ueberpruefung eines hall-sensorsystems Method and apparatus for inspecting a hall-sensor systems |
| 06/19/1991 | EP0432386A1 Arrangement to determine the values of electrical variables, that can be derived from at least two electrical input signals of the arrangement |
| 06/18/1991 | US5025206 Test mode actuator and indicator for electronic energy meter |
| 06/15/1991 | CA2029936A1 Arrangement for ascertaining values of electric quantities which are derivable from measured values of at least two electric input quantities of the arrangement |
| 06/12/1991 | EP0328525B1 System enabling the electrical balancing of transducers arranged in inking heads |
| 06/05/1991 | EP0430475A2 Calibration verification and correction method |
| 06/05/1991 | EP0430256A2 Method and equipment for cablibrating output levels of waveform analyzing apparatus |
| 06/04/1991 | CA1284673C Calibration method for apparatus evaluating microwave/millimeter wave circuits |
| 05/28/1991 | US5019775 Calibrating an eddy-current-probe using a modulated thermal energy source |
| 05/07/1991 | US5014229 Method and apparatus for calibrating transducer/amplifier systems |
| 05/07/1991 | US5014228 Method and apparatus for calibrating linear delay lines |
| 04/30/1991 | US5012181 Apparatus for and method of internally calibrating an electrical calibrator |
| 04/23/1991 | CA1283445C Method of and circuit for ohmmeter calibration |
| 04/03/1991 | EP0420548A2 Energy meter |
| 04/03/1991 | EP0420545A2 Electronic watthour meter |
| 04/02/1991 | US5005145 Method and apparatus for calibrating a scan convertor |
| 04/02/1991 | US5004976 Wye winding radial air-core gauge system |
| 03/27/1991 | EP0418614A2 Method and apparatus for calibrating linear delay lines |
| 03/27/1991 | EP0418509A2 Calibration of a lightwave component analyzer for testing optical devices |
| 03/19/1991 | US5001675 Phase and amplitude calibration system for electromagnetic propagation based earth formation evaluation instruments |
| 03/12/1991 | US4999572 Redundant pulse monitoring in electric energy metering system |
| 03/12/1991 | US4999569 Method to calibrate magneto-optic based metering system |
| 02/20/1991 | CN2071792U Electric energy metering on-line detector for clamp mutual-inductor |
| 02/12/1991 | CA1280162C Digital-to-analog calibration system |