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WO/2010/007770A1 |
A PE board (10) is provided for the pins of a DUT. A plurality of I/O pins (Pio) are connected to the corresponding pins of the DUT via cables. One end of each of a plurality of first switches (K1) is connected to a corresponding I/O pin...
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WO/2009/156825A1 |
The invention provides a method of diagnosing a malfunction in an abnormal voltage detecting apparatus, which includes breaking an electrical connection between a secondary battery (100) and an abnormal voltage detecting apparatus (40, 3...
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WO/2009/156982A2 |
A measurement device is presented being configured to be connectable to an analyzer unit (comprising a network analyzer) via at least one RF port connection. The measurement device comprises at least one measuring unit and at least one c...
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WO/2009/151648A1 |
The tolerance of Short-Open-Load (SOL) and Short-Open-Load-Reflect (SOLR) VNA calibration for variability in probe position is improved by using load and short calibration structures having impedance elements with a length at least two t...
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WO/2009/147199A1 |
The invention relates to a method of calibrating a test platform (5) for microwave modules (1). According to the invention, the Thru, Reflect and One standard units are replaced by microwave standard modules fulfilling similar functions,...
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WO/2009/146547A1 |
Methods and apparatus for testing electrical storage batteries monitor magnetic susceptibility of components of the storage batteries. In some embodiments, magnetic susceptibility of a plate in a lead-acid battery is determined to provid...
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WO/2009/132437A1 |
An apparatus and method is disclosed for improving the accuracy of measurements taken with a capacitance-type sensor. In addition to the sensor the apparatus comprises a measurement circuit and a microprocessor. One of the sensor or a ca...
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WO/2009/127068A1 |
There are provided a method and a system for real time monitoring of a powered-on electrical network in a facility in order to detect an electrical anomaly while the electrical network is in use. The system comprises a sensor data receiv...
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WO/2009/127472A1 |
An electrical motor activation method, in which an electric motor, comprising a rotor, which is connected to a motor shaft, and a stator having brushes, said stator comprising multiple commutator lamellae for the commutation of the windi...
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WO/2009/124073A2 |
A system and method for acquiring phasors outside of the frequency tracking range for power protective relays. As the frequency of a power system varies from the rated frequency, phasors calculated from such samples include errors. A fre...
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WO/2009/108422A2 |
Magnetic field sensors have a magnetic field sensing element and also a feedback circuit to provide a gain-adjustment signal to affect a sensitivity associated with the magnetic field sensing element. In some arrangements, the feedback c...
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WO/2009/098816A1 |
A method for correcting a measurement error enables an improvement in correction accuracy by eliminating the correction error attributed to the leak signal component leaking between ports of a measurement jig. An electronic part characte...
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WO/2009/072204A1 |
It is an object to provide a device that analyzes a life property obtained by performing an acceleration test using a temperature and humidity as a parameter to estimate life. In a method for estimating the remaining life of a test weigh...
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WO/2009/069209A1 |
A calibration board is used on which short-circuit connection is made among all the pins to be connected with a DUT by using wires of equal length. For measurement of a comparator skew, at first a waveform is generated from a reference d...
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WO/2009/061454A1 |
A method for calibrating a synthetic jet ejector is provided which comprises (a) taking a first measurement DCR0 of the DC resistance of the coil; (b) adjusting the actuator drive voltage Vd to achieve a desired maximum displacement dmax...
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WO/2006/132956A9 |
A radio frequency ID tag, very small in size and with an onboard antenna, is manufactured, tested and applied cost- efficiently. The transmit frequency for the tag is set during manufacture approximately, within a selected range, in a gr...
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WO/2009/022697A1 |
Provided is a measuring apparatus for measuring filter characteristics. The measuring apparatus is provided with a first transmission path wherein a filter is connected on a path, a multi-tone signal having signal component for each of a...
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WO/2009/014072A1 |
Provided is an error factor measuring device (20) for measuring an error factor in a switch branching signal source having a signal source and a switch. The error factor measuring device (20) comprises a reference error factor component ...
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WO/2009/014073A1 |
Provided is an error factor measuring device (40) comprising a connector characteristic measuring unit (42) for measuring the characteristics of a connector, when the connector is connected with a signal source, so as to measure the erro...
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WO/2009/007237A1 |
The present invention proposes a method and a corresponding apparatus for correcting a phase error, in measurement-control equipment for a power network between the voltage and current generated by the hardware circuits of the measuremen...
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WO/2009/003277A1 |
A system and method of probing work pieces is described. A first and second arm each having a pivot point and a guide end are pivotally coupled together at the respective pivot points. A probe tip holder is coupled to at least one of the...
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WO/2009/000234A1 |
The present invention relates to an apparatus and method for determination of the present position of a rotor, in particular of the rotation angle of the rotor, of an electric motor, with this apparatus determining the present position o...
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WO/2008/154976A1 |
The invention relates to a vectorial network analyzer having n measurement ports (16a, 16b). When a plurality of different calibration standards are connected to the measurement ports (16a, 16b), multiple calibration measurements are per...
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WO/2008/149973A1 |
Provided is a test device including: a first comparator and a second comparator which measure a signal-to-be-measured outputted from a device under test, at a timing of a given sampling clock; a judgment unit which judges whether the dev...
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WO/2008/125184A1 |
The invention relates to a method and to a switching device (4) and a measurement system (1). In the method according to the invention for determining time differences between measurement signals measured by at least two couple measureme...
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WO/2008/123144A1 |
A magnetic sensor having a sensitivity measuring function in which a magnetic body is provided on a semiconductor substrate where a plurality of Hall elements are provided. A sensitivity measuring device and a sensitivity measuring metho...
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WO/2008/121529A1 |
Applicants have created an improved method and apparatus for remotely monitoring an electrical load and assessing key attributes of power-related anomalies and line disturbances caused or created by the electrical load and qualifying the...
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WO/2008/113883A1 |
The apparatus (1) for checking the operational condition of an electronic sensor element (3) which measures a physical quantity comprises testing means for providing a test deflection, corresponding to a specific change in the measured p...
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WO/2008/114508A1 |
A variable delay circuit (42) applies an adjustable delay to a strobe signal (S5). An input latch circuit (14) latches each bit data included in internal serial data (S2) using a strobe signal (S6) delayed by the variable delay circuit (...
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WO/2008/075602A1 |
Provided is a measurement device which measures an output reflection coefficient of a device to be measured for outputting an output signal having a predetermined power and a predetermined frequency in accordance with a given set value. ...
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WO/2008/066913A2 |
The methods and devices provide for calibration of two or three-axis magnetic field sensors with an artificial magnetic calibration field, or a sequence of magnetic calibration fields, that overwhelm the earth's magnetic field and any ot...
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WO/2008/065791A1 |
A high frequency characteristics error correction method of an electronic component in which calibration work on a two terminal impedance component can be carried out with a measuring system subjected to correction kept in the same sate ...
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WO/2008/066137A1 |
Provided is an electronic part high-frequency characteristic error correction method capable of performing calibration of a 2-terminal impedance part while a measurement system to be corrected is in the same state as in the actual measur...
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WO/2008/060950A2 |
A system for estimating clotting properties of blood, comprises a sensor generating an initial data signal associated with a measurement of clotting of the blood during an initial time period prior to a final clotting time of the blood a...
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WO/2008/050607A1 |
A response measuring device (20) in which the output end of a driver (14) and the input end of a comparator (16) are terminated at the earth potential through a transmission path (30). The device (20) comprises a driver control section (...
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WO/2008/047683A1 |
A calibration device calibrates a jitter measurement circuit including a jitter signal generation unit for generating a jitter signal in which the duration of at least one of a logical H or a logical L changes according to the jitter of ...
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WO/2008/048526A2 |
An industrial process sensor having a sensor component exposed to process fluid detects when the sensor performance has been degraded by a sensor coating buildup from the process fluid. A baseline statistical metric, such as standard dev...
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WO/2008/047682A1 |
A calibration device calibrates, according to an input signal and a delay signal generated by delaying the input signal by a variable delay circuit, a jitter measurement circuit that outputs a jitter measurement signal having a level bas...
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WO/2008/044670A1 |
To perform probe contact conformity judgment applicable to multiple pin measurement, at a low cost with easy operation. A calibration apparatus is provided with a calibration robot (20) for bringing a probe (21) into contact with a presc...
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WO/2008/042402A2 |
A vehicle safety crash test strobe flash photographic illumination lamp system comprising an onboard controller unit, an off-board controller unit, and a lamp fixture. The onboard controller unit comprises a solid state relay being switc...
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WO/2008/042202A2 |
A method of signal processing includes receiving an unknown signal that includes a distorted component and an undistorted component, and performing self-linearization based at least in part on the unknown signal to obtain an output signa...
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WO/2008/039131A1 |
The present invention relates to a method and a device for monitoring a system such as a cable. Pulses propagating in different directions are distinguished by measuring and sampling current and voltage at a location of the system, frequ...
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WO/2008/026711A1 |
A reflective element judging device (50) derives error factors in a first signal source (10) and a second signal source (20) in accordance with measuring results of signals in a state in which reflective elements (41, 42) are connected w...
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WO/2008/026483A1 |
It is possible to easily perform calibration of a signal generation system such as a switch branching signal source. An error factor identification device (20) includes: an error factor recording unit for recording an error factor (Eija)...
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WO/2008/019731A1 |
Disclosed is a probe (21) for an oscilloscope (24) comprising a multi-stage transistor amplifier (26) which is used as an impedance transformer and the output of which is connected to the oscilloscope (24). An electronic switching device...
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WO/2008/021907A2 |
Method and apparatus for calibrating a probe (32) including calibrating a reference plane along a transmission line, the transmission line having a first port and a second port, calculating a reflection from the reference plane into the ...
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WO/2008/021885A2 |
Systems and methods for calibrating a DUT fixture having a first port selection and a second port selection, including measuring a plurality of first parameters of the fixture; time-domain gating at least one of the measured first parame...
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WO/2008/011035A2 |
A method of compensating a calibration for a vector network analyzer [VNA] includes performing calibrations on at least a pair of por [El. E2 E3.E4] to determine error terms associated with each port [E1.E2.E3 E4] wherein at least one of...
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WO/2008/003398A1 |
In a method for exciting port groups of a multiport measurement object (MO) with equal frequency and coherent travelling waves (a1, a2) that exhibit defined amplitude relationships and phase differences within each port group, the waves ...
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WO/2008/003399A1 |
The invention relates to a method for calibrating a high frequency measurement system with N measurement ports. For at least one of the ports of the HF measurement device, the HF signal running on the second electrical lead is coupled ou...
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