Patent classifications
G01R27/00
Electronic device
The accuracy of reading characteristics or data of pixels or memory cells in a matrix device is increased. An electronic device includes a plurality of drive lines, a sense line intersecting the drive lines, a plurality of element devices provided at intersections thereof, a detecting circuit, a decoder, and a driver. The detecting circuit can detect a first physical quantity of the sense line and transmit a digital signal obtained by digitizing the first physical quantity to the decoder. Each of the element devices can change the first physical quantity of the sense line in accordance with a signal of the corresponding drive line. The driver can transmit coded signals based on a Hadamard matrix to the decoder and the drive lines. The decoder can perform arithmetic processing with use of the coded signals and the digital signal and calculate values based on second physical quantities of the element devices.
Apparatus for increasing resolution of resistance sensing
An apparatus is provided that increases resolution of a resistance sensor. The apparatus may include a variable current source that produces a variable current in response to a current value. The apparatus may also include a variable resistance device that generates a variable voltage associated with the variable current. The variable resistance may have a low resistance value and a high resistance value. In addition, the apparatus may include a controller that receives a voltage value associated with the variable voltage and controls the current value in order to result in an increase in resolution of a range between the low resistance value and a high resistance value.
MICROWAVE IMAGING DEVICE
A microwave (MW) system includes an object support adapted to support an object, a MW transmitter, a MW receiver, an outer rotation unit, an inner rotation unit, a controller and a computation processor. The outer rotation unit includes an outer ring, having a ring shape, with an outer ring mount, upon which one of either an antenna of the MW transmitter or an antenna of the MW receiver is mounted. The inner rotation unit comprises an inner ring, having a ring shape, with an inner ring mount, upon which the other of an antenna of the MW transmitter or an antenna of the MW receiver is mounted. The controller is configured to independently control both the rotation of the inner ring and the outer ring. The computation processor is configured to receive data including MW data representative of MW scattered field detected by the MW receiver.
Method for adjusting a current sensor
A method for adjusting a current sensor with a measuring element having a broken rational current-voltage characteristic curve, including:—changing the broken rational profile of the broken rational current-voltage characteristic curve of the measuring element on the basis of at least one predetermined condition.
Dynamic Determination of Metal Film Thickness from Sheet Resistance and TCR Value
Metal film thickness can be determined using the sheet resistance, resistivity, and temperature coefficient of resistivity for the metal film. Variation in film thickness measurements caused by resistivity can be reduced or eliminated. A probe head may be used for some of the measurements of the metal film. The probe head can include a temperature sensor used during sheet resistance measurements. A wafer on a chuck is heated, such as using the chuck or the probe head, for the measurements.
Method and systems relating to construction material assessment
Hundreds of thousands of concrete bridges, buildings etc. and hundreds of billions of tons of concrete require characterization throughout the process from manufacture to pouring and curing and on throughout service life. The characterization may relate to initial concrete properties, projected concrete properties, framework removal, corrosion, failure etc. Accordingly, a variety of measurements such as water content, electrical resistivity, and half-cell corrosion potential for example would be beneficially implemented as easy to use field test equipment or embedded sensors allowing lifetime monitoring to be performed rather than discrete assessments when issues become evident.
Three phase power quality measurement using asynchronous, isolated single phase circuits
A system and method utilize multiple, asynchronous, voltage isolated integrated power data circuits (IPDCs) to respectively determine one or more power parameters of a multi-phase power distribution system. In at least one embodiment, the power parameters represent differences between voltage phases of a multi-phase power distribution system. In at least one embodiment, the IPDCs each sense a voltage or current from a single phase of a three-phase power distribution system. Additionally, the IPDCs are electrically isolated from each other and, thus, in at least one embodiment, can utilize voltage divider or shunt resistor sensing without being subject to high voltages representative of the difference between voltage phases. Additionally, in at least one embodiment, each of the IPDCs utilizes a separate clock signal to determine phase sequence and phase angle deltas of one or more three phase voltages of the three-phase power distribution system.
Method for resistivity determination with borehole imagers
A method and system for resistivity imaging. A method may comprise disposing a downhole tool into a borehole, applying a voltage difference between the array of injector electrodes, constructing a first set of formation images for each of the plurality of frequencies, applying a mud effect removal algorithm to produce a second set of formation images for each of the plurality of frequencies, applying a dielectric correction algorithm to each of the plurality of frequencies to produce a third set of formation images for each of the plurality of frequencies, and combining the first set of formation images, the second set of formation images, and the third set of formation images to obtain a blended image. A system for resistivity imaging may comprise a downhole tool. The downhole tool may comprises a pad, an array of injector electrodes, and one or more return electrodes.
Method for resistivity determination with borehole imagers
A method and system for resistivity imaging. A method may comprise disposing a downhole tool into a borehole, applying a voltage difference between the array of injector electrodes, constructing a first set of formation images for each of the plurality of frequencies, applying a mud effect removal algorithm to produce a second set of formation images for each of the plurality of frequencies, applying a dielectric correction algorithm to each of the plurality of frequencies to produce a third set of formation images for each of the plurality of frequencies, and combining the first set of formation images, the second set of formation images, and the third set of formation images to obtain a blended image. A system for resistivity imaging may comprise a downhole tool. The downhole tool may comprises a pad, an array of injector electrodes, and one or more return electrodes.
Silver nanostructure-based optical stacks and touch sensors with UV protection
Disclosed herein are optical stacks that are stable to light exposure by incorporating one or more UV-blocking layers.