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7586419 |
Ice detection apparatus and method
Ice detection apparatus for monitoring ice accretion on aircraft surfaces, comprising an array of optical fibres which are mounted flush with an outer surface of an aircraft skin, and an...
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7567088 |
Foreign object detection apparatus
A foreign object detection apparatus has at least one pair of first and second members which are members configuring a space, in which bills to be processed are deposited, and disposed to face each...
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7486087 |
Method for measuring thickness of print products passing spaced apart at specific distances in a conveying flow through a measuring device
A device for measuring the thickness of print products in a conveying flow includes a plate capacitor having a first plate and a second plate located on opposite sides of the print products. The...
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7466146 |
Frozen material detection using electric field sensor
An electric field sensor may be used to detect accumulation of frozen material. In one embodiment, an e-field system includes a first electrode, a second electrode located at a distance from the...
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7459919 |
Device for checking light-metal parts
A device for checking the coating of anodized light-metal parts (e.g. Aluminum), in particular by TSA anodization, is described. The device has two contact electrodes on respective resilient...
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7375537 |
Method and apparatus for measuring relative dielectric constant
A relative-dielectric-constant measuring apparatus according to the present invention includes an ellipsometer and a capacitance measuring part. The ellipsometer allows non-contact measurements of...
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7368922 |
Method and device for determining parameters of fluctuating flow
The invention relates to a method and a device for determining the parameters of a fluctuating flow of a fluid in a pipe, wherein at least three electrodes that are placed at a distance from one...
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7358748 |
Methods and systems for determining a property of an insulating film
A method for determining a property of an insulating film is provided. The method may include obtaining a charge density measurement of the film, a surface voltage potential of the film relative to...
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7330035 |
Object shape determination method and system therefor
An unknown object shape is computed using repeated iterations of electrostatic calculations on a predetermined shaped object and sensed electrostatic measurements. The predetermined object shape is...
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7330032 |
Techniques for building-scale electrostatic tomography
Techniques for imaging a search region to detect a dielectric target include placing multiple electrodes outside the search region. At least two electrodes are activated independently of each...
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7315174 |
Method of measuring flat-band status capacitance of a gate oxide in a MOS transistor device
A method of measuring flat-band status capacitance of a gate oxide in a MOS transistor device is disclosed. According to the method of measuring flat-band status capacitance of gate oxide in MOS...
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7295019 |
Security scanners with capacitance and magnetic sensor arrays
Security scanning devices based on electrical tomography, including tomography systems based on the measurement of capacitance (ECT) and electromagnetic tomography (EMT), in combination with...
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7276918 |
Sensor and apparatus for measuring the flow electric potential
The present invention provides a sensor and apparatus for measuring flow electric potential for evaluation of a degree of electrodeposition of paint applied to the body or chassis of a vehicle. The...
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7256589 |
Capacitive sensor system with improved capacitance measuring sensitivity
A capacitance sensor system and method includes a capacitive sensor as an array of sensor electrodes near the surface of the integrated circuit and charge pump circuits for measuring the...
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7256588 |
Capacitive sensor and method for non-contacting gap and dielectric medium measurement
A method for non-contact measurement of a displacement between a surface and a capacitive sensor comprised of at least two superimposed conductive plates electrically insulated one from the other...
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7250774 |
Fingerprint sensor
The present invention relates to a fingerprints detection apparatus by a capacitance detection method. The fingerprints detection apparatus of the present invention includes a sensor portion in...
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7233154 |
Proximity sensor
A proximity sensor module includes a housing; and a proximity sensor disposed in the housing, wherein the proximity sensor comprises a sensor plate configured to contact inside of the housing such...
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7112972 |
Gauge calibration
A method of calibrating a gauge in particular for the measurement of film thickness, uses a calibration variable to compensate for short term changes in probe tip condition, instead of a constant...
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7098050 |
Corona based charge voltage measurement
A method of measuring electrical characteristics of a gate dielectric. The gate dielectric is local annealed by directing a highly localized energy source at the measurement area, such that the...
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7081765 |
Electrostatic capacitance detection device
Aspects of the invention provide a superior electrostatic capacitance detecting device. The electrostatic capacitance detection device can include M number of row lines, N number of column lines,...
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7064559 |
Non intrusive and dynamic method for measuring a distance or the variation thereof through dielectrics
A non intrusive method and system for the dynamic measurement of a distance, or the variations over time thereof, constituting the thickness, or the variations thereof, of a thin compressible...
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6998856 |
Apparatus for sensing the position of a pointing object
A computer system ( 10 ) includes a keyboard ( 11 ), a first pair of position-sensing electrodes ( 18.1 and 18.2 ), a second pair of position-sensing electrodes ( 20.1 and 20.2 ), a signal...
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6980009 |
Structure for measurement of capacitance of ultra-thin dielectrics
Disclosed is an on-chip test device for testing the thickness of gate oxides in transistors. A ring oscillator provides a ring oscillator output and an inverter receives the ring oscillator output...
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6900652 |
Flexible membrane probe and method of use thereof
A measuring apparatus for measuring a semiconductor wafer, or a film or coating thereon, includes an electrically conductive wafer chuck and a probe having a probe body defining an internal cavity...
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6879168 |
Ice detection system
The invention is a system for determining the presence of ice on the surface of a structure. The system includes a guard layer mounted to the surface. A non-conductive layer is mounted on top of...
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6844713 |
Compact stud finder
A pocket-sized object finder has a compact housing containing a battery, circuitry and a capacitor plate for detecting an object hidden behind a wall. The battery powered circuitry includes...
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6777956 |
Capacitance measuring systems
A capacitance fuel-gauging system has a capacitive probe and a reference capacitor charged in opposite senses from respective dc voltage sources via switches operated in antiphase. Two further...
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6771913 |
Apparatus and method for acquiring the nature of a toner particle layer and the moisture content of a carrier material in a printer or copier
An apparatus and method are provided for acquiring the nature of a toner particle layer in a printer or copier. An apparatus and a method are also provided for acquiring the moisture content of a...
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6761352 |
Method and system for double feed detection
A system for detecting overlapped flat objects in a sequence of flat objects have at least one of their edges exposed for viewing as they pass along a feed path. The system includes a sensor for...
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6756791 |
Method for measuring film thickness using capacitance technique
The present invention includes capacitive film thickness measurement devices and measurement systems. The invention also includes machines or instruments using those aspects of the invention. The...
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6724199 |
Pin and cup devices for measuring film thickness
Capacitive film thickness measurement devices and measurement systems used in machines or instruments. A capacitance measurement device and technique useful in determining lubricant film thickness...
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6717419 |
Liquid dielectric capacitor for film thickness mapping
The present invention includes capacitive film thickness measurement devices and measurement systems. The invention also includes machines or instruments using those aspects of the invention. The...
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6703846 |
Superabsorbent polymer targeting registration of dry formed composite cores
A system and method for adjusting the targeting of superabsorbent material in absorbent cores based on the timing of a cutting device are disclosed herein. After targeting superabsorbent material...
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6646453 |
Method for measuring the thickness of multi-layer films
A method for capacitively measuring the thickness of multi-layer films ( 10 ), the layers ( 32, 34 ) the dielectric constants of which differ at least at a particular temperature, wherein, in...
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6605950 |
Method and apparatus for measuring film thicknesses
A method for measuring the film thickness with the help of a measuring head ( 12 ), which is held with a holding device ( 14 ) against the film ( 10 ), so that the latter is deflected, wherein the...
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6593754 |
Compact subsurface object locator
A hand held subsurface object locator has a pocket sized housing that contains circuitry and a power source for electrically detecting substratum objects hidden behind a surface. The housing is...
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6572441 |
Method of and apparatus for chemical-mechanical polishing
During a CMP operation, vibration-caused variations in the forces holding a wafer against a polishing pad, and/or relatively moving the pad and the wafer are measured and the standard deviation...
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6559475 |
Test pattern for evaluating a process of silicide film formation
The present invention relates to a semiconductor device, and more particularly, to a test pattern for evaluating a process of silicide film formation. The test pattern in accordance with the...
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6541986 |
Sensor for the capacitive measurement of film with thicknesses
A sensor for the capacitive measurement of film thicknesses, with a drum ( 10 ), which rolls along the film ( 12 ) and has at least one measuring capacitor (C 1- C 4 ), the plates of which are...
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6538459 |
Automatic calibration system for apparatus for measuring variations in thickness of elongated samples of thin plastic film
A capacitance gauge for measuring changes in the thickness of dielectric film, such as plastic film, is automatically calibrated by utilizing a direct-measurement sensor method or a contact-type...
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6529014 |
Coating thickness gauge with automated zero adjustment and/or calibration
The subject of the invention is a coating thickness gauge with at least one measuring probe ( 14 ) which has at least one sensor ( 15, 15 ′) as well as a device for the zero adjustment and/or...
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6515490 |
Conductive fluid-based position sensor and method
An apparatus and method for determining a position and/or orientation of a conductor disposed in a conductive fluid. A plurality of electrodes disposed about the conductor and preferably being in...
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6496021 |
Method for making a capacitive distance sensor
This invention is directed to a method of making a capacitive distance sensor that includes one or more sensor cells each with first and second capacitor plates. The method includes determining an...
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6492821 |
Method and apparatus for detection signal processing
A system and method are disclosed for detecting the occurrence of an external event. The system eliminates the need for users to adjust amplifier offsets as well as detection thresholds by...
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6486682 |
Determination of dielectric constants of thin dielectric materials in a MOS (metal oxide semiconductor) stack
First and second dielectric constants, e 1 and e 2 respectively, for first and second dielectric materials forming a MOS (metal oxide semiconductor) stack are determined. First and second test...
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6486681 |
Measuring circuit for a capacitive sensor for distance measurement and/or space monitoring
In a measuring circuit for a capacitive sensor for distance measurement and/or space monitoring comprising sensor wire and shielding electrode, a sine signal is applied to the shielding electrode....
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6472887 |
Capacitive sensor for sensing the amount of material in a container
One embodiment of the invention is a capacitive sensor for sensing the amount of material in a container. This embodiment includes an oscillator that generates an oscillating signal. This...
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6459280 |
Capacitance devices for film thickness mapping, measurement methods using same
The present invention includes capacitive film thickness measurement devices and measurement systems. The invention also includes machines or instruments using those aspects of the invention. The...
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6448790 |
Electrostatic capacitance detecting device
Bias charge is injected from a bias power supply line 3 into a detecting electrode 11 constituting an electrostatic capacitance element between an object to be detected to accumulate charge in...
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6407556 |
Sensor for indicating changes in the presence of persons or objects
A sensor for indicating changes in the physical presence of persons or objects and including at least two electrically conductive sheets of material that are spaced mutually apart on an...
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