Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
10/1982
10/19/1982US4355232 Apparatus for measuring specimen potential in electron microscope
10/13/1982EP0062097A1 Method of displaying the logic status of several neighbouring modes in integrated circuits in a logic picture by using a pulsed-electron probe
10/12/1982US4354155 Circuit arrangement for monitoring a current-consuming load
10/06/1982EP0061983A1 Portable devices for detecting the absence of voltage in high and very high alternating voltage installations
10/05/1982US4353028 Measuring circuit for integrating electrical signals in a gamma camera
10/05/1982CA1133056A1 Apparatus for sensing the reactive or real components of current
09/1982
09/29/1982EP0060925A1 Recording of non cyclically repeating logic status alterations at a measuring point within integrated circuits with an electron probe
09/29/1982EP0060924A1 Selective logic picture of information groups on several nodes of an integrated circuit which go together
09/28/1982US4352009 Variable ratio totalizer
09/28/1982CA1132667A1 Track and hold circuit
09/28/1982CA1132661A1 Resistive device sensor
09/22/1982EP0060806A1 Method of reducing the power consumption of a stepping motor, and device for carrying out this method
09/22/1982EP0060321A1 Method for a quick internal logic control on integrated circuits
09/21/1982US4350956 Level shifting and filtering circuit
09/21/1982US4350952 Digital read-out meter circuit and tachometer with variable meter update rate using an up/down counter means
09/21/1982US4350951 Audio analog voltmeter
09/21/1982US4350879 Time jitter determining apparatus
09/21/1982CA1132197A1 Precision rectifier circuits
09/14/1982US4349783 Ground isolated electrostatic field detector
09/14/1982US4349755 Current product limit detector
09/08/1982EP0059512A2 Improvements in and relating to testing coins
09/08/1982EP0059511A2 Improvements in and relating to testing coins
09/07/1982US4348602 Current comparator circuit with deadband
09/07/1982CA1131314A1 Voltage detectors and electrical continuity testers
09/01/1982EP0058693A1 Alarm system for electric fences.
08/1982
08/31/1982US4347469 Electronic-magnetic current isolator circuit
08/25/1982EP0058464A1 Current steering circuit
08/25/1982EP0058273A2 Two-level threshold circuitry for large scale integrated circuit memories
08/24/1982US4346375 Solid state status indication circuit for power controllers
08/24/1982US4346346 Instrument for measuring true-RMS A.C. voltage and A.C. voltage fluctuations
08/24/1982US4346291 Thermally isolated monolithic semiconductor die
08/19/1982WO1982002808A1 Gating circuit
08/19/1982WO1982002775A1 Opposition series-parallel measuring circuit,use of that circuit and electrode for measuring the voltage on electrochemical cells
08/17/1982US4345169 Zero crossing detector
08/17/1982CA1129967A1 Level indicating circuit
08/10/1982US4344101 Testers
08/10/1982US4344032 Method and arrangement for testing the characteristics of inductive pulse generators
08/10/1982CA1129505A1 Multi-input signal comparator and indicator circuit
08/03/1982CA1129085A1 Peak detector circuit
08/03/1982CA1129018A1 Circuit arrangement for comparing the synchronism or tracking between two analog signals
08/03/1982CA1129005A1 Voltage metering arrangement for instantaneous or momentary values
07/1982
07/27/1982US4342097 Memory buffer
07/27/1982US4342004 Voltage comparator circuit
07/27/1982US4341994 Power level measurement system
07/27/1982US4341961 Discrimination apparatus for extracting maximum-value output from a plurality of signals and indexing the relevant channel
07/20/1982US4339958 Analog-to-digital converter for electromagnetic flowmeter
07/13/1982US4339712 Method and system for measuring width and amplitude of current pulse
07/08/1982WO1982002293A1 Linear full wave rectifier circuit
07/08/1982WO1982002262A1 Solid state current sensing circuit
07/08/1982WO1982002253A1 Dual core magnetic amplifier sensor
07/07/1982EP0055573A1 Comparator circuit
07/07/1982EP0055320A1 Voltage comparators with large common mode input voltage range
06/1982
06/29/1982US4337516 Sensor fault detection by activity monitoring
06/29/1982CA1126822A1 System for monitoring electrical energy consumption
06/29/1982CA1126821A1 Method and apparatus for the measurement of electric currents and/or voltages in a plurality of current or voltage circuits
06/29/1982CA1126820A1 Circuit for monitoring the current distribution in parallel-connected converter branches
06/22/1982US4336586 Linear full wave rectifier circuit
06/22/1982CA1126389A1 On-off auto-adaptive converter for image scanning signals
06/16/1982EP0053786A1 Resistance measuring circuit
06/16/1982EP0053625A1 Ac biasing of a dc squid.
06/15/1982US4335304 Signal detection mechanism from electron multiplier
06/15/1982US4334745 Exposure indicating device for a camera utilizing analog-digital converter
06/08/1982CA1125368A1 Full-wave rectifier
06/02/1982EP0052900A1 Signal comparison circuit
06/01/1982US4333151 Method for protecting an electric power system and digital protective system
06/01/1982US4333141 Full wave rectifier
06/01/1982US4333049 Inrush current measuring apparatus with instantaneous power interruption device
06/01/1982CA1124796A1 Fault indicator
06/01/1982CA1124795A1 Test point mounted circuit condition indicator
06/01/1982CA1124777A1 Power failure detection and restart system
05/1982
05/26/1982EP0052221A1 Signal-processing circuit
05/25/1982CA1124324A1 Determination of electric current flow patterns
05/19/1982EP0051911A1 Method and apparatus for enhancing the output of a log-antilog type RMS converter
05/18/1982CA1123968A1 Device for measuring a quantity which influences a field-effect transistor
05/12/1982EP0051299A1 Control circuit and its use in motor vehicles
05/05/1982EP0050705A1 Method and circuit for the contactless measuring of direct and alternating currents, especially momentary current values
05/04/1982US4328434 Comparator circuit with offset correction
05/04/1982US4327985 Battery-voltage indicator of camera
05/04/1982CA1123056A1 Measuring device for a frequency analysis of signal levels over a wide range of frequencies
04/1982
04/27/1982US4327329 Electrical signal processing
04/27/1982US4326796 Apparatus and method for measuring and maintaining copy quality in an electrophotographic copier
04/21/1982EP0049754A1 High speed temperature controlled electrometer
04/20/1982US4326166 Correcting circuit for differential pick-up, comprising digital means
04/15/1982WO1982001253A1 Electronic watt/var transducer
04/14/1982EP0049520A1 Electronic watt/var transducer
04/13/1982US4325099 Detector circuit for thyristors
04/13/1982US4325024 System for measuring signal levels
04/13/1982US4324990 Comparison circuit adaptable for utilization in a television receiver or the like
04/07/1982EP0049235A1 Method of detecting disturbances of an AC electrical voltage causing the switching of the user to another current source
04/07/1982EP0049024A2 Switched capacitor comparator and method for eliminating the effects of inherent offset voltages when using, as a comparator, an opamp
04/07/1982EP0048863A1 Method and arrangement for the quantitative measuring of the potential on surface-wave filters
04/07/1982EP0048858A1 Signal processing device for electron beam measuring apparatus
04/07/1982EP0048857A1 Arrangement for the stroboscopic measuring of a potential with an electron beam measuring apparatus, and method of operating such an apparatus
04/06/1982US4323890 Switching circuit for monitoring the switching state of switch elements
04/06/1982US4323841 Indicating device for use in airfield lighting plants technical field
04/06/1982CA1121472A1 Dual threshold comparator circuit
03/1982
03/31/1982EP0048655A1 Supply circuit for a current monitoring lamp
03/30/1982US4322709 Adjustable flux generator a magnetically activated electronic switch
03/30/1982US4322708 Electromagnetic device utilizing a pair of magnetically activated electronic switches
03/30/1982US4322639 Voltage detection circuit
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