| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
|---|
| 07/19/1983 | US4394647 Voltage monitoring arrangement for ORed power diodes |
| 07/12/1983 | CA1149875A1 Voltage monitor |
| 07/05/1983 | US4392044 Method for detecting whether dissimilar metals are being welded |
| 06/22/1983 | EP0082082A1 Current measuring arrangement for a current passing through an electric conductor |
| 06/21/1983 | US4389708 Method and apparatus for enhancing the output of an RMS converter |
| 06/21/1983 | US4389640 Apparatus for detecting loss of AC power supply and loss of current |
| 06/21/1983 | US4389612 Apparatus for reducing low frequency noise in dc biased SQUIDS |
| 06/21/1983 | US4389610 Electrostatic probe device and method of manufacturing such a device |
| 06/21/1983 | US4389609 Battery check device |
| 06/21/1983 | US4389563 Taximeter system for avoiding operator fraud in the computation and display of trip fares |
| 06/14/1983 | US4388590 Digital audio level metering |
| 06/14/1983 | US4388589 Color-emitting DC level indicator |
| 06/14/1983 | US4388588 Flush mountable plasma density profile probe device |
| 06/07/1983 | CA1147814A1 Combined fault and voltage indicator |
| 06/07/1983 | CA1147811A1 Cathodic survey apparatus |
| 05/31/1983 | CA1147402A1 Time jitter determining apparatus |
| 05/24/1983 | US4385283 Apparatus for monitoring and detecting operational defects in the state of vehicle lamps |
| 05/18/1983 | EP0078898A1 Bridge circuit for measuring purposes |
| 05/17/1983 | CA1146658A1 Circuit test device |
| 05/11/1983 | EP0078592A2 Method of and apparatus for automatically compensating for variations in output response characteristics of sensors and the like |
| 05/10/1983 | CA1146278A1 Ccd analog to digital converter |
| 05/10/1983 | CA1146222A1 Converter circuit for use with an electrochemical cell |
| 04/27/1983 | EP0077725A1 Current probe signal processing circuit |
| 04/27/1983 | EP0015253B1 A transducer for sensing a variable parameter and for converting a so-obtained analog signal to a digital signal |
| 04/26/1983 | CA1145400A1 Ground-isolated electrostatic field detector |
| 04/25/1983 | EP0067153A4 Dual core magnetic amplifier sensor. |
| 04/05/1983 | CA1144244A1 Auto-zero amplifier circuit with wide dynamic range |
| 04/05/1983 | CA1144239A1 Recirculating rms ac conversion method and apparatus |
| 04/05/1983 | CA1144238A2 Analyzing electrical circuit boards |
| 04/05/1983 | CA1144237A2 Analyzing electrical circuit boards |
| 03/29/1983 | US4378496 Current measuring apparatus using light-emitting devices |
| 03/22/1983 | US4377781 Selectively adjustable voltage detection integrated circuit |
| 03/22/1983 | CA1143443A1 Circuit for monitoring the square of the rms value of a periodic signal |
| 03/16/1983 | EP0074235A1 Programmable signal analyzer |
| 03/08/1983 | US4376266 Device for the monitoring of peak values of a nonperiodic phenomenon with a low recurrence rate |
| 03/08/1983 | US4376265 Power source voltage checking device particularly for checking the voltage of a battery in a camera |
| 03/08/1983 | US4376247 Remote current sensor |
| 03/03/1983 | WO1983000740A1 Battery voltage monitoring and indicating apparatus |
| 03/01/1983 | US4375617 Fault indicator with flux concentrating means |
| 03/01/1983 | US4375601 Signal stability recognition |
| 03/01/1983 | CA1142230A1 Voltage tester |
| 02/22/1983 | US4375072 Self-calibrating overcurrent detector |
| 02/22/1983 | US4375038 RMS Converter |
| 02/22/1983 | CA1141830A2 Method of and a protection relay for protecting electrical equipment |
| 02/16/1983 | EP0072342A2 Measurement system with a measuring device for a physical parameter |
| 02/16/1983 | EP0071912A1 Measurement apparatus |
| 02/15/1983 | US4374334 Signal comparator apparatus |
| 02/09/1983 | EP0071265A1 MOS comparator circuit suitable for monolithic integration |
| 02/09/1983 | EP0071106A1 Optical voltage and electric field sensor |
| 02/09/1983 | EP0070844A1 Gating circuit |
| 02/08/1983 | US4373140 Peak detector |
| 02/08/1983 | US4373139 Detectors |
| 02/08/1983 | US4372324 Analog peak voltage detector in a defibrillator |
| 02/01/1983 | US4371910 Safety device for electric consumers in motor vehicles |
| 02/01/1983 | US4371831 Monitoring device for distinguishing the operating state of a load |
| 02/01/1983 | CA1140633A1 Passive testing instrument |
| 01/25/1983 | US4370615 High speed temperature controlled electrometer |
| 01/18/1983 | US4368635 Knocking detector |
| 01/18/1983 | CA1139838A1 Apparatus for converting an a.c. input signal to a rectified and smoothed d.c. signal |
| 01/14/1983 | EP0058693A4 Alarm system for electric fences. |
| 01/05/1983 | EP0068501A1 Test device for indicating an electric voltage and the polarity thereof, and the passage of current through a conductor |
| 01/05/1983 | EP0068081A1 Hall element device |
| 01/04/1983 | US4367506 Protective system for electric motors |
| 01/04/1983 | US4367423 Reset signal generator |
| 01/04/1983 | CA1138943A1 Charge amplifier with minimum offset voltage |
| 01/04/1983 | CA1138929A1 Voltage-to-current converter |
| 01/04/1983 | CA1138928A1 Rms circuit for voltage regulation |
| 12/28/1982 | US4366434 Voltage detectors and electrical continuity checkers |
| 12/28/1982 | US4366433 Output voltage-drop detecting apparatus technical field |
| 12/28/1982 | US4366430 Battery booster cable assembly |
| 12/22/1982 | EP0067796A1 Device for indicating pole-zero cancellation, in particular for amplifiers for ionizing radiation spectroscopy |
| 12/22/1982 | EP0067527A1 Improvements in or relating to measuring probes |
| 12/22/1982 | EP0067510A2 A test system for functionally testing a microprocessor-based assembly, and apparatus for testing logic circuitry |
| 12/22/1982 | EP0067163A1 Linear full wave rectifier circuit. |
| 12/22/1982 | EP0067153A1 Dual core magnetic amplifier sensor. |
| 12/21/1982 | US4365236 Digital display circuit displayable in analog fashion |
| 12/21/1982 | US4365193 Overvoltage-pulse analyzer |
| 12/21/1982 | US4364633 Pairwise comparison device |
| 12/21/1982 | CA1138115A1 Waveform digitizer |
| 12/21/1982 | CA1138057A1 Signal level detector |
| 12/15/1982 | EP0066843A1 Digital measuring apparatus with a liquid crystal screen |
| 12/14/1982 | US4363977 Device for discriminating between two values of a signal with DC offset compensation |
| 12/07/1982 | US4363061 Electric motor and transformer load sensing technique |
| 12/07/1982 | US4362996 Method and means for an accurate wideband peak detector |
| 12/07/1982 | US4362988 Method of and circuit arrangement for determining the magnitude of an unknown resistance element |
| 11/30/1982 | US4361800 Circuit test device |
| 11/30/1982 | US4361795 Battery charger polarity circuit control |
| 11/30/1982 | CA1136705A1 Voltage comparator |
| 11/30/1982 | CA1136704A1 Apparatus and method of phase shift compensation of an active terminated current transformer |
| 11/23/1982 | US4360880 Recirculating RMS AC conversion method and apparatus with fast mode |
| 11/23/1982 | US4360847 Diode assisted relay contactor |
| 11/23/1982 | US4360253 Safety glass mounted test result indicator |
| 11/17/1982 | EP0064814A2 Line voltage monitor system |
| 11/09/1982 | US4358752 Analog-to-digital converter |
| 11/02/1982 | CA1134914A1 Fault indicator with external excitation means |
| 11/02/1982 | CA1134910A1 Portable device for testing and/or temporarily correcting circuits in a vehicle electrical system |
| 10/27/1982 | EP0063356A1 Time switch arrangement |
| 10/26/1982 | US4356481 Source voltage drop detecting circuit |
| 10/26/1982 | US4356442 Electronic voltage and continuity testing unit |
| 10/26/1982 | CA1134446A1 Cable tester |