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8174276 |
Coaxial four-point probe for low resistance measurements
Various exemplary embodiments provide probes, systems and methods for measuring an effective electrical resistance/resistivity with high sensitivity. In one embodiment, the measuring system can...
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8170820 |
Virtual probing
A method and apparatus for generating one or more transfer functions for converting waveforms. The method comprises the steps of determining a system description, representative of a circuit,...
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8169210 |
Contactless system and method for electrostatic sensing with a high spatial resolution
In the illustrated embodiment of the invention a scanning system is provided for scanning a chargeable surface for latent image detection. The chargeable surface is charged to a first potential,...
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8159237 |
Grid sensor
A grid sensor significantly reduces the complexity of a production process. The cost for installing and running the grid sensor are significantly reduced and the service life, pressure and heat...
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8154274 |
Safety interlock
A safety interlock for use in a medical device having a control system for controlling operation of the medical device includes a central tubular portion defining a fluid passage for passing fluid...
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8129979 |
Arrangement for lightning detection at a wind turbine
An arrangement to detect a lightning strike in a wind turbine is provided. According to the arrangement, the wind turbines contains an ozone sensor. The ozone sensor is located close to a component...
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8115470 |
Broadband isotropic antenna
Broadband isotropic (omnidirectional) antenna typically comprising three orthogonal small size monopole antennas protruding through the centers of three adjacent sides of the small metal cube. Each...
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8111076 |
Method and apparatus for determination of plant canopy rehydration rate and magnitude of plant canopy water storage
This invention is concerned with a method for measuring the canopy rehydration pulse during the period of water application. During the rehydration process water leaks from the trunk xylem tubes...
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8063649 |
Broadband high impedance pickoff circuit
A measuring system minimizes the parasitic affects of lumped circuit elements. The system includes two or more in-situ interfaces configured to conductively link a source to an internal load and an...
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8049486 |
Coupled electric field sensors for DC target electric field detection
In various embodiments, an apparatus for detecting electric fields is disclosed that includes an array of non-linear elements configured into an oscillator with each coupled to one or more...
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8013619 |
System and method for performing a continuity test on a lightning conduction system of a wind turbine
A system and method for performing a continuity test on a lightning conduction system of a wind turbine are disclosed. The system generally includes a testing device having a blade ring configured...
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8004295 |
Electrical specific resistivity probing robot
An electrical specific resistivity probing robot is directed to automatically measuring a three-dimensional electrical specific resistivity structure of an underground shallow region by installing...
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8004286 |
Voltage measurement instrument and method having improved automatic mode operation
Voltage measuring instruments and methods of measuring the amplitude of an input signal are disclosed. In an example method of measuring the amplitude of an input signal, in an AC measurement mode,...
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8004273 |
System for simplified correlation of instrumentation probes and data displays
A system for testing a device under test includes a probe that detects a signal from the device under test, a display device that depicts a trace based on the signal, where the trace exhibits an...
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8005617 |
System and method for detecting lightning strikes likely to affect a condition of a structure
A lightning detection system and method for detecting a lightning strike are provided. The system includes a lightning detector in a structure susceptible to a lightning strike. The lightning...
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8000613 |
Flexible nanowire sensors and field-effect devices for testing toner
A system, including an improved sensor, for determining toner particle uniformity is described. The sensor measures toner particle charge, typically be having the charge on the toner particle...
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7988086 |
Fuel tank system
Unsafe electric energies can exist in aircraft fuel tanks as a result of static build-up or induced currents from lightning strikes. The invention provides an aircraft fuel tank including two...
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7990159 |
Potential measurement apparatus and image forming apparatus
A potential measurement apparatus for measuring a surface potential of an object of measurement detects a change in electric charge induced at a detection electrode due to electrostatic induction...
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7960987 |
Operation voltage supply method for semiconductor device
The voltage application probe and the voltage measurement probe are connected to the voltage application pad and the voltage measurement pad of the semiconductor device. The voltage application pad...
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7957902 |
Method and system for determining cloud-to-ground lightning information
A real-time, multi-sensor local-area lightning detection network system. The system uses waveform indicative of electrostatic field changes with respect to time is generated at each of N locations...
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7948227 |
Electrical circuit diagnostic tool
Diagnosing electrical circuit faults can be accomplished with a variety of tools. Voltmeters are frequently used to measure voltage to determine whether a short is present, but are not well-suited...
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7948250 |
Probe with a changing device
The invention concerns a probe with at least two test prods, which are provided on a changing device connected to the probe and which can be alternately connected to an electric waveguide running...
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7944361 |
Electric field whistle
In one embodiment, an electric field sensor is provided including an elongated conductor; a circuit including an input and an output connected across the elongated conductor wherein said circuit...
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7940038 |
Grid sensor for the two-dimensional measurement of different components in the cross section of a multiphase flow
Disclosed is an arrangement for quickly measuring the phase distribution or the component distribution in a flow cross section for substance mixtures also of a non-conducting type by measuring the...
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7923982 |
Semiconductor integrated circuit
A semiconductor integrated circuit is provided with a voltage level detector which detects a voltage level of a signal wire, and a transition time detector which detects a time length of a...
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7906956 |
Polarity tester for an electronic communication port
A polarity tester is engagable with an electronic communication port to test the polarity thereof. A connector is supported on a housing and features a plurality of electrical contacts for...
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7901546 |
Monitoring methods, systems and apparatus for validating the operation of a current interrupter used in cathodic protection
The present invention includes systems, methods and apparatus for continuously, independently and in some cases remotely monitoring the operation of a current interrupter used to test a cathodic...
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7898239 |
High-voltage generator of an X-ray apparatus comprising a high-voltage measurement device
A high-voltage (HV) generator of an X-ray device comprises a high-voltage measurement device. The measurement device comprises a compact component integrating both the measurement resistor and the...
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7872486 |
Wing-shaped support members for enhancing semiconductor probes and methods to form the same
Example wing-shaped support members for enhancing semiconductor device probes and methods to form the same are disclosed. A disclosed example semiconductor device probe includes a finger having a...
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7859420 |
Devices for testing the operability of electronic circuitry
A device for testing the operability of an AC power outlet, a DC power outlet and A/V input jacks may include an AC test circuit, a DC test circuit, an A/V test circuit, a logic circuit, and a...
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7855544 |
AC low current probe card
A probe system for connecting a measurement apparatus to a DUT includes an AC probe having an AC shield conductor and an AC probe conductor shielded by the AC shield; a first DC probe having a...
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7826933 |
Adaptive relaying controlled by autonomous event detection
An adaptive relaying control system and method is disclosed for adapting coordination of protective measures provided to an electric-energy distribution system as a function of at least an ambient...
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7809507 |
Lightning detector using an X-ray detector and an E- or B-field detector
A lightning detection system (100) includes at least one lightning detector (101-103). The said lightning detector (101-103) includes at least one x-ray detector (110) for providing x-ray data...
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7795875 |
Electrostatic discharge event and transient signal detection and measurement device and method
An electrostatic discharge (ESD) event and transient signal detection and measurement device and method are described. The device and method are able to distinguish between an ESD event and other...
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7791309 |
Motor controller and method of controlling the motor
The present invention relates a motor controller and a motor control method of controlling a motor having a stator coil and a rotator. The motor controller includes: an activating operator...
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7772826 |
Detection of lightning
A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector uses at least two separate channels or frequency bands for lightning detection, and...
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7762721 |
On chip temperature measuring and monitoring method
A device temperature measurement circuit, an integrated circuit (IC) including a device temperature measurement circuit, a method of characterizing device temperature and a method of monitoring...
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7764062 |
Method and structure for variable pitch microwave probe assembly
A coplanar waveguide (CPW) probe includes at least one center probe element, each having a respective center probe contact point and at least one peripheral probe element, each having a respective...
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7755345 |
Measuring device with a plunge-in electrode
Described is a measuring device, in particular for measuring the pH value in foodstuffs. The measuring device comprises an extended first electrode for plunging into a material to be measured and a...
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7746051 |
Voltmeter with dual displays
A voltmeter/phaser includes dual hot-stick probes, each carrying a housing including a digital display, one of the housings also having a measurement circuit for measuring the sensed voltage. A...
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7746086 |
Non-contact type apparatus for testing open and short circuits of a plurality of pattern electrodes formed on a panel
Disclosed herein are a noncontact single side probe and an apparatus and method for testing open and short circuits of pattern electrodes. By feeding power to one end of each of the pattern...
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7733078 |
Self-test probe design & method for non-contact voltage detectors
A non-contact voltage detector having a self-test feature is provided. The non-contact voltage detector may include an antenna, a detection circuit and a self-test circuit. The self-test circuit...
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7733105 |
Voltage clamp circuit and semiconductor device, overcurrent protection circuit, voltage measurement probe, voltage measurement device and semiconductor evaluation device respectively using the same
In a voltage clamp circuit, a normally-on type field-effect transistor having a negative threshold voltage has a drain connected to an input node, a source connected to an output node and grounded...
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7719253 |
Apparatus for verifying a low noise block output voltage
The present invention relates to system diagnostic circuitry for antenna systems with active antenna components. More specifically, the present invention discloses an apparatus comprising a...
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7719254 |
Method for setting a reference potential of a current sensor and arrangement for determining the reference potential of a power semiconductor device
A method for setting a reference potential of a current sensor in a power semiconductor device is disclosed. On the basis of a specific geometry and a typical two-dimensional potential distribution...
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7714743 |
Aircraft lightning strike detector
An aircraft lightning event detector includes a sensor mounted to an aircraft. The sensor determines whether a lightning event has struck the aircraft or induced a possibly damaging current into...
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7710123 |
Voltage variance tester
An exemplary voltage variance tester includes a first to a third testing circuits each comprising an adjustable power source and an electrical switch; a first to a third signal generators providing...
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7683629 |
Circuit tester device
A circuit tester in the form of a pliers includes first and second jaws with first and second probes respectively for engaging a wire to confirm circuit continuity and polarity. The probes are...
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7671578 |
Detection circuit for sensing the input voltage of transformer
A circuit for detecting an input voltage of a transformer is provided. The circuit includes a current source circuit coupled to a winding of a transformer. A current-to-voltage circuit is coupled...
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7660685 |
Virtual probing
A method and apparatus for generating one or more transfer functions for converting waveforms. The method comprises the steps of determining a system description, representative of a circuit,...
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