Patents
Patents for G01R 35 - Testing or calibrating of apparatus covered by the other groups of this subclass (8,105)
07/1996
07/04/1996DE19547281A1 Measurement system with interchangeable sensor modules for scientific and technical instrumentation
07/02/1996US5532983 Circuit design for point-to-point chip for high speed testing
06/1996
06/11/1996US5525910 Method for trimming wide bandwidth electronic circuits
05/1996
05/30/1996DE19542989A1 System for detecting open and short circuits in semiconductor wiring
05/17/1996WO1996014613A1 Voltage reference with testing and self-calibration
05/15/1996EP0712008A2 Apparatus for detecting battery voltage
05/09/1996DE4439707A1 Spannungsreferenz mit Prüfung und Eigenkalibrierung Voltage Reference with testing and self-calibration
05/07/1996US5514958 Electrical energy meters having factory set calibration circuits therein and methods of calibrating same
04/1996
04/17/1996CN2225056Y Monitor for metering electric power
04/16/1996US5508617 Electric power measuring apparatus and method
04/10/1996EP0706059A1 Calibrating procedure for a network analyzer using the 15-term principle
04/10/1996EP0706055A2 Method for calibrating a network analyzer according to the 7-term principle
04/10/1996EP0705438A1 Measurement amplifier
04/10/1996EP0705437A1 Measurement amplifier
04/09/1996US5506500 Magnetic property characterization system employing a single sensing coil arrangement to measure both AC susceptibility and DC magnetization
03/1996
03/28/1996WO1996009557A1 Self-calibrating data processors and methods for calibrating same
03/06/1996EP0699914A1 Electricity meter
02/1996
02/27/1996US5495167 Electrical energy meter having record of meter calibration data therein and method of recording calibration data
02/15/1996WO1996004563A1 Method of and apparatus for determining a response characteristic
02/06/1996US5489843 Apparatus and method for testing the calibration of electronic package lead inspection system
02/01/1996DE19525430A1 Schaltungsnetzwerk-Meßeinrichtung und Kalibrierungsverfahren Circuit network-measuring device and calibration procedures
01/1996
01/30/1996US5488369 High speed sampling apparatus and method for calibrating the same
01/30/1996US5488290 Energizing devices for kilowatt hour meter displays
01/24/1996EP0693692A2 Voltage and resistance synthesizer using pulse width modulation
01/16/1996US5485115 Impedance synthesizer
01/03/1996EP0690310A2 Electromagnetic inductive probe
12/1995
12/27/1995EP0688433A1 Improved power meter
12/27/1995EP0466939B1 Ic testing device
12/19/1995US5477138 Apparatus and method for testing the calibration of a variety of electronic package lead inspection systems
12/19/1995US5477137 For receiving an electronic device
12/05/1995US5473666 Method and apparatus for digitally controlling gain in a talking path
11/1995
11/29/1995CN2214004Y Standard equivalent load power measuring checker
11/28/1995US5471137 System checking and troubleshooting package for an electronic metering device
11/21/1995US5469049 System checking and troubleshooting package for an electronic metering device
11/14/1995US5467021 Calibration method and apparatus
11/07/1995US5465065 Coupled to a transmitting device
11/02/1995WO1995029409A1 Method and apparatus for digital meter calibration
10/1995
10/24/1995US5461306 DC current detection system for a current transformer
10/10/1995CA2018964C Method and apparatus for the fine adjustment of a potentiometer
09/1995
09/26/1995US5453697 Technique for calibrating a transformer element
09/13/1995EP0671036A1 Instrumentation system with multiple sensor modules
09/08/1995WO1995023979A1 A resistance network
09/05/1995US5448164 Electrical test apparatus and method of checking the apparatus
08/1995
08/29/1995US5446681 Method of estimating property and/or composition data of a test sample
08/29/1995US5446260 Method of trimming an electronic circuit
08/16/1995EP0627083A4 Method and apparatus for electronic meter testing.
08/15/1995US5442296 Method for calibrating a network analyzer
08/08/1995US5440305 Method and apparatus for calibration of a monolithic voltage reference
08/08/1995US5440236 Calibrating a network analyzer by making multiple measurements on a common transmission line with a movable discontinuity
07/1995
07/26/1995EP0664005A1 Method for recalibrating a battery power control processor
07/25/1995US5436570 Burn-in test probe for fine-pitch packages with side contacts
07/18/1995US5434511 Electronic microwave calibration device
07/18/1995US5434502 Calibration device for hyper-frequency adjustment of the reference planes of an apparatus for measuring the dispersion parameters of elements of integrated circuits
07/12/1995EP0662221A1 Process for testing an electronic electricity meter.
07/11/1995US5432451 Magnetic resonance imaging reflectometer tuning unit
06/1995
06/27/1995US5428204 Active trim method and apparatus
06/21/1995CN2201676Y Electric energy displaying field converting terminal box
06/08/1995DE4341614A1 Testing of electromagnetic reflection characteristics of electromagnetic compatibility measurement chamber
06/07/1995EP0656542A2 Impedance synthesizer
05/1995
05/30/1995US5420515 Active circuit trimming with AC and DC response trims relative to a known response
05/17/1995EP0653070A1 High speed power analyzer
05/17/1995CN1028452C Intelligent detecting device for watt-hour meter
05/16/1995US5416411 System and method for measuring the thickness of a ferromagnetic layer
05/03/1995CN2196311Y Check unit for household watt-hour meter
04/1995
04/27/1995DE4433375A1 Method for calibrating a network analyser
04/25/1995US5410245 Method and apparatus for calibrating electronic scales for the horizontal axis
04/20/1995WO1995010781A1 Electronic measurement device
04/12/1995CN2194517Y Photo-electricity converter
04/06/1995DE4333660A1 Method for forming the mean value of an analog zero-frequency quantity
03/1995
03/29/1995EP0645636A1 Electronic watthour meter
03/28/1995US5402082 Voltage and resistance synthesizer using pulse width modulation
03/22/1995EP0644433A1 Electronic watthour meter
03/22/1995EP0644431A1 Electronic watthour meter
03/21/1995US5399963 Method and apparatus for calibration of an electricity meter
03/16/1995DE4330739A1 Test device for tractive-unit AC monitoring device
03/14/1995US5397980 Current probe calibration fixture
03/02/1995DE4401068A1 Network analyser
02/1995
02/22/1995CN2190306Y Image data collector for oscilloscope
02/16/1995WO1995004937A1 Method for recalibrating a battery power control processor
02/16/1995CA2146347A1 Method for recalibrating a battery power control processor
02/01/1995EP0505372B1 Process and device for testing a hall sensor system
01/1995
01/26/1995DE4324760A1 Circuit arrangement for testing instruments for measuring AC energy
01/24/1995US5384781 Automatic skew calibration for multi-channel signal sources
01/19/1995DE4323380A1 Method and circuit for fault recognition in resistor measuring bridges
01/05/1995WO1995000856A1 Measurement amplifier
01/05/1995WO1995000855A1 Measurement amplifier
12/1994
12/28/1994CN2186402Y Actual load parity checker
12/27/1994US5377128 Self-calibrating instrumentation system with multiple sensor modules
12/22/1994DE4405211A1 Method for calibrating a network analyser having two measuring ports and three measuring positions
12/20/1994US5375073 Instrumentation system with multiple sensor modules providing accuracy code information
12/07/1994EP0627083A1 Method and apparatus for electronic meter testing
12/06/1994US5371511 Method for approximating the notion of a rotatable disk of an electrical energy meter
11/1994
11/30/1994EP0626588A1 Electronic calibration method and apparatus
11/15/1994US5365462 Instrumentation system with multiple sensor modules providing calibration date information
11/01/1994US5361026 Load indicating socket tester
10/1994
10/26/1994EP0552291A4 Method of estimating property and/or composition data of a test sample
10/11/1994US5355129 Measuring sensor device
10/06/1994DE4310384A1 Method for digital drift compensation in a charge amplifier circuit
10/04/1994US5351519 Circuit arrangement for evaluating and testing a capacitive sensor
09/1994
09/29/1994WO1994022023A1 Improved power meter
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