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)
12/1985
12/31/1985CA1198786A1 Device for the amperemetry of a current in a conductor
12/27/1985EP0165512A2 Method for determining the difference between an alternative voltage and a second voltage, and measuring device for the application of said method
12/24/1985US4560940 Peak amplitude measurement
12/24/1985US4560932 Magneto-optical converter utilizing Faraday effect
12/24/1985CA1198476A1 Power frequency detection system
12/18/1985EP0164710A2 Method for phase locked sampling during measurement of a periodic quantity and device for carrying out the method
12/18/1985EP0164511A1 Control circuit for detecting the passage of given level limits
12/17/1985US4559530 Overcurrent condition display
12/17/1985US4559497 Ranged voltage monitor with out-of-range enunciators
12/17/1985CA1198177A1 Method for using a charge coupled device for a peak detector
12/10/1985US4558310 Current sensing device and monitor
12/10/1985US4558280 Ignition secondary analyzer
12/10/1985US4558276 Device and method for sensing electric current in a conductor
12/10/1985US4558275 Line voltage monitor system
12/10/1985US4558233 CMOS power-on reset pulse generating circuit with extended reset pulse duration
12/10/1985US4558226 Voltage detecting circuit with hysteresis characteristic and high noise immunity
12/05/1985WO1985005456A1 Optoelectric distance measuring apparatus with a time discriminator for the accurate detection of the electric pulse sequence
12/04/1985EP0163462A1 Electrostatic system analyzer
12/04/1985EP0163282A2 Line voltage monitor system
12/03/1985US4556842 Tracking filter for sensing DC content in an AC waveform
12/03/1985US4556839 Electrical circuit identification means
12/03/1985CA1197639A1 Loop test circuit
12/03/1985CA1197573A1 Analog signal comparator using digital circuitry
11/1985
11/27/1985EP0162370A2 Voltage comparator
11/21/1985EP0161896A2 Half wave demodulation circuit
11/19/1985US4554513 Replica circuit
11/19/1985CA1196953A1 Full wave rectifier having an operational amplifier
11/13/1985EP0161151A1 Current-measuring device in an electricity distribution panel or box
11/13/1985EP0161006A2 Line voltage monitor system
11/12/1985US4553187 Overcurrent detection device
11/12/1985US4553140 Power supply control circuit
11/12/1985US4552765 Aletheine derivatives
11/10/1985CN85200443U Safety alarm for winding of closed compressors
11/06/1985EP0160209A1 Measurement of electrical signals with subpicosecond resolution
11/05/1985US4551672 Active probe
11/05/1985US4551625 Spectrometer objective for particle beam measurement technique
11/05/1985CA1196377A1 Apparatus for measuring electrical potential in a cell
10/1985
10/30/1985EP0159786A1 Improvements in the measurement of impedance ratios
10/30/1985EP0159401A1 Measurement apparatus
10/29/1985US4550288 Voltage loss sensor and alarm
10/29/1985US4550287 Data bus test instrument having a tri-colored LED and indicating continuity, voltage and polarity
10/23/1985EP0159257A1 Electronic circuit for measuring very weak signals superposed on a high potential
10/23/1985EP0159201A1 Method and device for measuring the current in a three-phase network
10/23/1985EP0158802A1 Digital acquisition system including a high-speed sampling gate
10/23/1985EP0158727A1 Method for measuring the current density in galvanization baths
10/22/1985US4549100 MOS Voltage comparator and method
10/22/1985CA1195734A1 Ac biasing of a dc squid
10/16/1985EP0157799A1 Common mode signal detector.
10/15/1985US4547683 Comparator for comparing two or more input voltages
10/09/1985EP0157110A1 Binary signal transmission circuit
10/09/1985EP0067153B1 Dual core magnetic amplifier sensor
10/08/1985US4546313 Peak power ratio generator
10/08/1985US4546274 Non-linear integration circuit
10/02/1985EP0156727A1 Device for the supervision of an electrical voltage being subject to unintentional, momentary interruptions
10/02/1985EP0156560A1 CMOS power-on detection circuit
10/01/1985US4544893 Battery voltage detector
09/1985
09/24/1985US4543570 For detecting occurrence of combustion in a thermal deburring apparatus
09/24/1985US4543498 Process insensitive CMOS window detector
09/24/1985CA1194144A1 Current-discrimination arrangement
09/24/1985CA1194122A1 Self-powered ammeter
09/18/1985EP0155197A1 High-dynamic range small currents measuring device
09/18/1985EP0155117A2 Voltage detecting device
09/18/1985EP0155113A2 Voltage level detection circuit
09/17/1985US4542303 Comparator circuit
09/17/1985CA1193666A1 Current sensing relay
09/10/1985US4540940 Circuit tester for automotive electrical systems
09/10/1985US4540937 Electronic circuitry with self-calibrating feedback for use with an optical current sensor
09/10/1985US4540885 Spectrometer objective having parallel objective fields and spectrometer fields for the potential measuring technique
09/10/1985CA1193321A1 Test instrument with flexibly connected head
09/03/1985US4539709 Measurement of oscillator spillover noise in a single sideband system
09/03/1985US4539562 Load current monitoring device for detecting predetermined degree of change in load impedance
09/03/1985US4539495 Voltage comparator
09/03/1985US4539477 Method and apparatus for suppressing disturbances in the measurement of signals with a particle probe
08/1985
08/28/1985EP0152984A1 Device for determining the starting moment of the forefront of a high-frequency pulse
08/20/1985US4536705 Probe search test light and continuity tester
08/20/1985US4536663 Comparator circuit having full supply common mode input
08/20/1985CA1192271A1 Two-level threshold circuitry for large scale integrated circuit memories
08/13/1985US4535295 Method and device for controlling the phase of timing signal
08/06/1985US4533865 Circuit arrangement for identifying and storing power line faults
08/06/1985US4533864 Test instrument with flexibly connected head
08/06/1985US4533844 Peak storage amplifier
07/1985
07/30/1985US4532630 Similar-redundant signal systems
07/30/1985US4532470 Reading sensing meter
07/30/1985US4532438 Monolithically integrable MOS-comparator circuit
07/24/1985EP0149095A2 Method for examining signal level-dependent properties of transmission apparatuses especially of signal level-dependent attenuation distorsions of CODEC's for PCM circuis, and device for the application of said method
07/23/1985US4531193 For measuring physical quantity/providing correspondence measurement data
07/17/1985EP0148296A1 Method and circuit for converting a measuring current into an impulse rate proportional to the measuring current
07/16/1985US4529893 Voltage comparator circuit
07/16/1985US4529892 Detection circuitry with multiple overlapping thresholds
07/16/1985US4529891 Comparator circuit
07/16/1985US4529855 Microwave radiation detector
07/09/1985US4528501 Dual loudness meter and method
07/09/1985US4528499 Modified bridge circuit for measurement purposes
07/09/1985US4527907 Method and apparatus for measuring the settling time of an analog signal
07/03/1985EP0146749A1 Method and circuit arrangement for determining the presence of at least one frequency of a known value in an input signal composed of multiple frequencies
07/02/1985US4527118 Testing device for indicating an electric voltage and its polarity and for continuity testing
07/02/1985US4527076 Signal level comparing circuit
06/1985
06/19/1985EP0145100A2 Offset reduction for fast comparators employing series-connected, single-ended gain stages
06/18/1985CA1189208A1 Subscriber's set
06/11/1985US4523187 Alarm system for electric fences
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