Patents
Patents for G01R 35 - Testing or calibrating of apparatus covered by the other groups of this subclass (8,105)
09/1999
09/08/1999CN1228162A Automated communication of electricity meter data
09/07/1999US5949241 Method for testing interconnects and semiconductor dice
08/1999
08/03/1999US5933013 Calibration circuit for calibrating frequency characteristics of an AC/DC converter
08/03/1999US5932323 Method and apparatus for mounting, inspecting and adjusting probe card needles
07/1999
07/29/1999DE19838491A1 Measuring consistency evaluation method for semiconductor component testing device, e.g. for integrated circuit quality control testing
07/27/1999US5929628 Apparatus and method for performing amplitude calibration in an electronic circuit tester
07/15/1999DE19806907A1 Circuit arrangement for providing consistent voltage standard
07/08/1999WO1999034223A1 Electronic circuit for monitoring voltage variation
07/06/1999US5920187 Dual path attenuator for a high frequency calibration circuit
07/01/1999DE19758085A1 Digital generating of calibration pulses with superimposed current
06/1999
06/30/1999EP0925512A1 Method and circuit for monitoring the functioning of a sensor bridge
06/29/1999US5917327 To apply an electrostatic force to hold a semiconductor wafer during process
06/24/1999DE19757675A1 Vectorial network analyzer calibration method
06/22/1999US5914609 Method and system for battery charging and testing with semi-automatic calibration
06/17/1999DE19755659A1 Calibration arrangement for network analyzer for industrial series measurement of networks with number of gates
06/16/1999EP0922236A1 Automated communication of electricity meter data
06/16/1999CN1220008A Method for testing electronic components
06/09/1999CN2323379Y Extension standard electric energy meter on-line testing device
06/02/1999EP0919823A2 System for verifying signal timing accuracy on a digital testing device
06/02/1999EP0919822A2 System for verifying signal voltage level accuracy on a digital testing device
06/02/1999DE19753186A1 Testing method for TEM cell or absorber chamber
06/02/1999CN1218184A Standard industrial frequency three phase source
05/1999
05/26/1999EP0918230A1 Method for finding errors of measurement in an energy distribution system
05/12/1999EP0914617A1 Process for testing a product and equipment for carrying out the process
04/1999
04/29/1999WO1999021025A1 Automated microwave test system with improved accuracy
04/08/1999DE19743712A1 Vector network analyzer calibration
04/06/1999US5890390 Method and apparatus for mounting, inspecting and adjusting probe card needles
03/1999
03/31/1999CN1212520A Method and apparatus for producing temperature stable frequency at reduced cost
03/23/1999US5886529 Impedance measuring device
03/17/1999EP0901638A1 Radiator calibration
03/17/1999EP0901637A1 Method for testing electronic components
03/16/1999US5884236 Calibration method of IC tester
03/10/1999EP0901231A2 Method and apparatus for producing a temperature stable frequency at reduced cost
02/1999
02/25/1999WO1999009623A1 Circuit board arrangement
02/25/1999CA2300162A1 Circuit board arrangement
02/11/1999DE19832805A1 Magnetic field measurement device for measuring currents flowing in conductors
02/11/1999DE19801658C1 Physical reference value provision method
02/09/1999US5870352 DC monitor for active device speed
02/09/1999US5869975 System for evaluating probing networks that have multiple probing ends
02/09/1999US5869958 Method of and apparatus for determining a response characteristic
02/02/1999US5867018 High accuracy four-terminal standard resistor for use in electrical metrology
01/1999
01/28/1999DE19728322A1 Testing TEM or screening cells, absorption chambers etc. for electromagnetic compatibility
01/27/1999CN1206260A Self-checking circuit in microwave equipment
01/19/1999US5861898 Apparatus for detecting battery voltage
01/19/1999US5861740 Load loss standard for calibrating power loss measurement systems
01/14/1999WO1999001777A1 Method and circuit for monitoring the functioning of a sensor bridge
01/13/1999EP0789866B1 Voltage reference with testing and self-calibration
01/07/1999WO1998045717A3 Remote home monitoring system
01/07/1999EP0888558A1 Method of calibrating the trip point of an overload relay
01/07/1999DE19728381A1 Verfahren und Schaltung zur Funktionsüberwachung einer Sensorbrücke Method and circuit for monitoring the operation of a sensor bridge
12/1998
12/16/1998CN1202250A Meter testing circuit
12/16/1998CN1201909A Calibration method for electronic electricity meter
12/03/1998WO1998054591A1 Automated communication of electricity meter data
12/02/1998CN2299326Y Portable regulator
11/1998
11/17/1998US5838161 Semiconductor interconnect having test structures for evaluating electrical characteristics of the interconnect
11/05/1998DE19716819A1 Test unit for voltage conducting conductor in switchgear, esp. permanent voltage indicator
11/04/1998EP0875764A2 Self-calibration of an oscilloscope using a square-wave test signal
11/03/1998US5831485 In a low cost digital signal measuring apparatus
11/03/1998US5831443 For testing semiconductor probe cards
10/1998
10/29/1998WO1998048249A1 Device and method for checking supply meters, specially water meters in houses and apartments
10/29/1998DE19717128A1 Vorrichtung und Verfahren zur Prüfung von Verbrauchszählern, insbesondere von Hauswasserzählern und Wohnungswasserzählern Apparatus and method for testing of meters, in particular domestic water meters and water meters apartment
10/21/1998EP0774125B1 Method of and apparatus for determining a response characteristic
10/20/1998US5825669 Method of updating automatic calibration to provide a perceived perfect through connection
10/15/1998WO1998045717A2 Remote home monitoring system
10/15/1998CA2286663A1 Remote home monitoring system
10/14/1998EP0871040A2 Calibration method for an electronic electricity meter
10/13/1998US5822225 Self-calibrating data processors and methods for calibrating same
10/13/1998US5821742 Computerized solid state energy meter test system and method of testing
10/01/1998DE19714353A1 Method for self=testing computer mechanism of digital electrical power meter
09/1998
09/30/1998EP0866976A2 Electronic measurement device
09/22/1998US5811981 Apparatus for facilitating zero-insertion of a burn-in test probe into a socket
09/22/1998US5811655 To adjust signal propagation delay times in signal paths to constant value
09/09/1998EP0862746A1 Electronic metering device including automatic service sensing
09/01/1998US5801525 Frequency discriminating power sensor
08/1998
08/27/1998WO1998025153A3 Measurement instrument amplitude calibration
08/12/1998EP0857294A1 Checking system for control measurement of energy measuring systems
08/11/1998US5793214 Electromagnetic inductive probe
08/11/1998US5793213 Method and apparatus for calibrating a network analyzer
07/1998
07/09/1998WO1998029753A1 Method of calibrating the trip point of an overload relay
07/08/1998EP0552300B1 Spectral data measurement and correction
06/1998
06/30/1998US5774378 Method of compensating for variations in a transfer function of a sensor
06/30/1998US5773967 Voltage reference with testing and self-calibration
06/25/1998WO1998027644A1 Microwave active solid state cold/warm noise source
06/24/1998CN1185838A Electronic metering device with automatic service sensor
06/23/1998US5770956 Measurement amplifier
06/11/1998WO1998025153A2 Measurement instrument amplitude calibration
06/09/1998US5764598 Delay time measurement apparatus for delay circuit
06/02/1998US5760720 Digital trimming of on-chip analog components
06/02/1998US5758537 Method and apparatus for mounting, inspecting and adjusting probe card needles
05/1998
05/26/1998US5757811 System for testing a fault detecting means
05/13/1998EP0840896A1 Electricity meter
05/12/1998US5751262 Method and apparatus for testing emissive cathodes
05/06/1998CN2280919Y Integrated mutual-inductor calibration device
05/05/1998US5748506 Calibration technique for a network analyzer
05/05/1998US5748000 Error correction method for transmission measurements in vector network analyzers
04/1998
04/29/1998EP0627083B1 Method and apparatus for electronic meter testing
04/21/1998US5742169 Apparatus for testing interconnects for semiconductor dice
04/15/1998EP0836080A1 Device and process for testing position-dependent signals
04/14/1998US5739649 Fail check device and method for AC motor control circuit
04/07/1998US5736848 Analog-to-digital measurement and calibration system for electrical energy
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