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WO/1996/014613A1 |
According to the invention, a voltage reference, i.e. a process for tuning a voltage reference, is proposed with self-monitoring and self-calibration. Use is made preferably of a band-gap reference source. The voltage reference is provid...
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WO/1996/009557A1 |
Highly accurate, self-calibrating data processors (16) and methods for calibrating the same use internal analog references (32) with negligible time and temperature drifts. A first input reference signal set generated by any accurate, pr...
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WO/1996/004563A1 |
A method of determining a response characteristic of a microwave device (14) comprises coupling a microwave resonator (9) to the device, loading the resonator with microwave radiation, monitoring the time decay of power from the resonato...
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WO/1995/029409A1 |
A method and apparatus for calibrating a digital electric energy consumption meter (10) of the type which performs voltage and current sampling in timed cycle clusters and then performs algorithmic or Fourier analysis on the sampling to ...
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WO/1995/023979A1 |
A four terminal resistance network provides a range of four terminal resistance values. The network comprises multiple resistances of at least two different resistance values and typically four or more resistances in a star (R1, R2, R3, ...
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WO/1995/010781A1 |
Electronic measurement devices (1) are calibrated by means of a testing device. For that purpose, corresponding aligning devices are adjusted and adapted to each other in order to obtain a measurement result that corresponds to the measu...
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WO/1995/004937A1 |
A method for recalibrating a storage battery power control processor, wherein a recalibration process for estimating the amount of electric power in the battery is started after a predetermined interval, the battery is completely recharg...
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WO/1995/000855A1 |
A measurement amplifier for weak currents has at least one input element (R1) which determines the amplification factor and is connected to the measurement input and a current and/or voltage amplifier (1) affected by a fault current. The...
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WO/1995/000856A1 |
A measurement amplifier has an integrator circuit (2) and a reference current source (33) which supplies a reference current to the input of the integrator when the voltage set at the output of the integrator (2) falls below or exceeds a...
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WO/1994/022023A1 |
An apparatus for measuring electrical power is described wherein the apparatus is adapted to produce an output signal proportional to the product of a supply voltage (3) and current (1) flowing through a connected load. A first signal (1...
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WO/1994/012940A1 |
An instrumentation system includes a hand-held computer-based measuring meter (36) having a visual display (40) and a plurality of individual sensor modules (20, 34) that can be selectively coupled to the measuring meter for measuring on...
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WO/1994/007155A1 |
An electronic electricity meter (1) has an optical interface (5, 6) used to test the load curve of the meter. When a test telegram is received from a testing device (7, 8, 9), the microcomputer (2) of the meter (1) switches loading meter...
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WO/1994/003818A1 |
A method and apparatus for rapidly and continuously sampling AC voltage and current signals in a plurality of power distribution circuits. The sampled signals are then analyzed in a sine board computer to derive the number of fundamental...
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WO/1993/019381A1 |
A variable temperature, two-coil (126a and 126b), two position ac susceptometer has been used to also perform absolute dc moment measurements using an extraction measurement technique. Virtually no hardware modifications were required an...
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WO/1993/017345A1 |
Methods and apparatus for electronically displaying metered electrical energy are disclosed. A first processor (14) receives voltage and current signals and determines electrical energy. The first processor (14) generates an energy signa...
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WO/1993/006499A1 |
Method for calibrating electronic power measuring meters of the type described in UK Patent Application No. 9120012.1. The method involves supplying unit power pulses from a meter standard to a supplementary data accumulating means (SDAM...
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WO/1992/021985A1 |
The invention relates to a circuit for testing the functional condition or status of a sensor. The sensor may either be operational or emit a fault signal, principally caused by a short circuit to earth, a short circuit to the power supp...
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WO/1992/007326A1 |
A method of operating a spectrometer to determine property (13) and/or composition data of a sample comprises an on-line spectral measurement (1) of the sample using a computer controlled spectrometer, statistical analysis of the sample ...
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WO/1992/007275A1 |
For correcting measured spectral data of n samples for data due to the measurement process itself, e.g. due to spectral baseline variations and/or water vapor and carbon dioxide present in the atmosphere of the spectrometer used to make ...
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WO/1992/002783A1 |
A measurement value sensor for detecting physical parameters that is constructionally not united with an evaluation circuit is provided with an identification generator with a storage module in which correction data (sensor identificatio...
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WO/1991/016638A1 |
A system for photoinductive imaging for flaw detection of materials and for calibrating eddy-current probes includes positioning an eddy-current probe (14) adjacent to a specimen (12) to be analyzed or to be used as a calibration fixture...
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WO/1991/014313A1 |
Improved autoranging, calibration, and a complex signal detection circuits for an intermediate frequency (IF) stage in a radio frequency (RF) measurement receiver (8). An improved autoranging circuit (75) sets a gain stage of a selective...
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WO/1991/011728A1 |
An IC testing device by which the timings for sending out test signals and the timings for taking in IC response output signals can be corrected according to delay times (T1 - Tn) of transmission lines (L1 - Ln) of an IC connection board...
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WO/1991/009317A2 |
A process and a device are useful for calibrating measurement sections for measuring noise field strengths of electrical appliances and/or to determine calibration factors for measurements of noise field strengths by means of the frequen...
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WO/1991/009320A1 |
The proposal is for a process for testing a sensor system consisting of a Hall sensor with a digital signal output (20) and a control magnet movable in relation thereto and a Hall sensor as a device for implementing the process. To this ...
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WO/1991/001502A1 |
A system for photoinductive imaging for flaw detection of materials and for calibrating eddy-current probes includes positioning an eddy-current probe (14) adjacent to a specimen (12) to be analyzed or to be used as a calibration fixture...
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WO/1990/002956A1 |
A device to assist in setting up the pitch, roll, yaw and standoff of a read head (12) relative to a scale (10), so as to improve the quadrature relationship of its outputs (14, 16). Two superimposed Lissajous figures (30, 32) are produc...
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WO/1990/000740A1 |
A calibration circuit for a solid state electricity meter (10) comprises a plurality of resistors formed on an integrated circuit. The resistors are connected by an on-chip array of electrically controlled switches, such as MOSFETs, to s...
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WO/1989/004001A1 |
A calibration procedure for vector network analyzers utilizing a known standard, an unknown standard and a pair of offsets bearing a known length ratio (2:1) between them whereby measurements taken on the standards and their combinations...
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WO/1989/000399A1 |
A system for calibrating a blood pressure transducer (11) and monitor (30) combination. The transducer assembly has a calibration resistor (50). The monitor cable has a housing which contains a switch (66) and a shunt resistor (65). Elec...
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WO/1988/004059A1 |
A high speed sampling apparatus based on multiplexed charged coupled devices or sample and hold devices (18) utilises a microprocessor (20) to monitor timing differences between clock signals, each used to clock a respective one of the d...
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WO/1988/002310A1 |
To balance thermal transducers located on the substrate of an inking head, a calibration resistor is also fitted on this substrate. For the purposes of balancing, the inking head or substrate is connected to a standard power supply arran...
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WO/1986/007493A1 |
Apparatus for calibrating an integrated circuit test system comprises a substrate having a substantially planar array of thin film components (1-9) formed thereon. The components are provided with contact pads which, for each component, ...
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WO/1986/006176A1 |
A system of at least three alignment key paterns (10, 12) and (14) located within the scribe lines of a semiconductor chip which allow more accurate placement of wafer probes and more accurate location of fuses for the purposes of blowin...
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JP7467495B2 |
Certain aspects and features include a system and method for validating fundamental-only power measurements. A meter testing application calculates an expected registration for a meter under test by comparing a fundamental demand indicat...
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JP7465173B2 |
Provided is a magnetic sensor circuit and includes: a magnetic sensor outputting a first sensor signal based on a magnetic flux density in a first direction; a magnetic sensor outputting a second sensor signal based on a magnetic flux de...
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JP7461596B2 |
The invention relates to the technical field of capacity checking of distribution transformers, in particular to an automatic capacity checking method for distribution transformers with voltage classes of 315kV and below. Comprising the ...
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JP2024043544A |
The present invention provides means for accurately determining the connection state of wiring connected to an electronic watt-hour meter without being affected by voltage fluctuations. A measured value input means 21 inputs an active po...
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JP7451975B2 |
This electromagnetic wave measurement device comprises a housing, a first antenna for radiating electromagnetic waves corresponding to an acquired electrical signal, a second antenna for detecting the electric field strength of an electr...
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JP7448988B2 |
A system for testing antenna-in-package (AiP) modules and a method for using the same is disclosed. Firstly, AiP modules respectively receive RF signals from a testing transmitting antenna. Then, at least one of the power and the phase o...
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JP7447883B2 |
An inspection apparatus includes a stage having a placing surface, a first magnetic field generator, and a second magnetic field generator. The first magnetic field generator is configured to be changeable in orientation and to singly ge...
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JP7445372B2 |
A system and method for providing a position and orientation sensor package having a reduced size in at least one dimension is disclosed. The position and orientation sensor package includes a dielectric substrate and a first magneto-res...
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JP7444064B2 |
A current sensor diagnosing apparatus according to an embodiment of the present disclosure is an apparatus for diagnosing an error of a plurality of current sensors connected to a secondary battery cell. According to the present disclosu...
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JP7442448B2 |
A method and apparatus for production testing of a device under test (DUT) in a chamber is disclosed, the chamber defining an internal cavity therein, adapted to enclose the DUT, and including walls having inwardly facing surfaces of an ...
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JP7435983B2 |
A system and method for phase and gain calibration of a current sensor system. The system comprises a microcontroller configured to execute software in an energy measurement component and a calibration computer having a calibration appli...
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JP7427738B1 |
The present invention provides means for accurately determining the connection state of wiring connected to an electronic watt-hour meter without being affected by voltage fluctuations. A measured value input means 21 inputs an active po...
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JP7423266B2 |
The invention relates to a method of simultaneously calibrating magnetic actuation and sensing systems (10) for a workspace (16), wherein the actuation system (10) comprises a plurality of magnetic actuators (20) and the sensing system (...
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JP2024503359A |
The present invention improves the linearity of a magnetoresistive sensor without reducing sensitivity. The present disclosure relates to a correction method for correcting an output signal provided by a magnetoresistive sensor in the pr...
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JP2024008014A |
An object of the present invention is to provide an insulation resistance detection device that performs correction during insulation resistance detection operation and satisfies the accuracy required by the system. [Solution] An insulat...
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JP7417520B2 |
Provided are an array communication device that makes phase correction between a plurality of arrays having bi-directional amplifiers possible and a method for controlling the array communication device. This array communication device c...
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