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| Number | Title | Issue Date |
| 8102182 | Systems and methods for measuring the electrical properties of a microparticle A method of measuring the electrical properties of a microparticle is provided, which can include multiple steps. Steps can include situating the microparticle within an array of electrodes submerged in a conductive medium so that the microparticle and electrodes ar... | 01/24/2012 |
| 8089290 | Liquid water sensor signal conditioning circuit for use in PEM fuel cells A measurement circuit that has particular application for detecting a high impedance measurement signal from a liquid water sensor. The measurement circuit includes a high impedance resistance-to-frequency conversion circuit that is coupled to the sensor and receive... | 01/03/2012 |
| 8018239 | Method and device for measuring powder properties An object of the present invention is to provide a method for measuring information relating to the impedance characteristics of a powder with high accuracy. To achieve such an object, the method for measuring powder properties according to the present invention inc... | 09/13/2011 |
| 8008931 | Method and device for monitoring the operation of a flotation cell The invention relates to a method of and a device for monitoring the operation of a flotation cell. In the method according to the invention, the electrical conductivity of the material (3, 7) in the flotation cell (1) is measured to observe any variat... | 08/30/2011 |
| 8008932 | Component with a detection structure for mechanical damage A component made of electrically insulating material with a detection structure for mechanical damage such as cracks is disclosed. The detection structure is a conductor. The electrical properties of the detection structure are modified as more and more cracks are f... | 08/30/2011 |
| 7982472 | Resistance measurement method and component inspection process In a first step, two conductive plates such as two zinc galvanized (electroplated) steel plates with films formed on surfaces thereof, are prepared; a flexible conductive material is held between these two zinc galvanized (electroplated) steel plates. A spacer is al... | 07/19/2011 |
| 7977955 | Particulate matter sensor A particulate matter sensor which may be used as an onboard particulate matter diagnostic sensor includes an insulating base that has at least a pair of opposing plane surfaces, an electrode nucleus that is formed on one of the pair of opposing plane surfaces of the... | 07/12/2011 |
| 7944219 | Amperometric electrochemical sensor Apparatus (2) for driving an amperometric electrochemical sensor, which apparatus (2) comprises a microelectrode (30), drive means (36) for the microelectrode, and signal processing means (3), the apparatus (2) being such th... | 05/17/2011 |
| 7924031 | Health monitoring method for composite materials An in-situ method for monitoring the health of a composite component utilizes a condition sensor made of electrically conductive particles dispersed in a polymeric matrix. The sensor is bonded or otherwise formed on the matrix surface of the composite material. Age-... | 04/12/2011 |
| 7911215 | Test patch system and method A test system for taking a sample of a constituent on a surface utilizing a fluid source includes a transition region having a capillary layer for delivering a fluid from said fluid source, an extraction region having a collection material in contact with said surfa... | 03/22/2011 |
| 7880483 | Method for inspecting quality of core material for electrophotographic ferrite carrier An object of the present invention is to provide a quality inspection method for obtaining a specifying factor which can more reliably indicate powder characteristics of a core material for an electrophotographic ferrite carrier. The method includes measuring an imp... | 02/01/2011 |
| 7880482 | Sensor mechanism and method for the production thereof A sensor device and a method of making a sensor device. The sensor device includes a coil arrangement including a primary coil and a secondary coil. A conduit that is traversable by a flow in a figure-8 pattern is disposed as a yoke about the coil arrangement such t... | 02/01/2011 |
| 7868629 | Proportional variable resistor structures to electrically measure mask misalignment A system, method and structures employing proportional variable resistors suitable for electrically measuring unidirectional misalignment of stitched masks in etched interconnect layers. In an example embodiment, there is a structure (10, 20) that comprises a... | 01/11/2011 |
| 7859273 | Sensor for detecting organic liquids A sensor for detecting the presence of an organic liquid. The sensor includes an a elongate substrate having a first and second opposed surface, and a first sensor surface disposed on at least a portion of the first surface of the substrate and a second sensor surfa... | 12/28/2010 |
| 7843201 | Method of testing light metal parts, in particular aluminum components, which have been coated by anodising, in particular by TSA anodising A method of testing light metal parts, in particular aluminum components, which have been coated by anodizing, in particular by TSA anodizing, to determine whether they have been coated is described. According to the invention, the surface resistance of the surface ... | 11/30/2010 |
| 7777505 | Nanopore platforms for ion channel recordings and single molecule detection and analysis A nanopore device includes a membrane having a nanopore extending there through forming a channel from a first side of the membrane to a second side of the membrane. The surface of the channel and first side of the membrane are modified with a hydrophobic coating. A... | 08/17/2010 |
| 7772855 | Instrument for measuring concentration of particulates in fluid, measuring method, and measuring program There are disclosed an instrument for measuring the concentration of particulates in a fluid, which is capable of determining the concentration of the particulates in the fluid with high accuracy. The instrument for measuring the concentration of the particulates in... | 08/10/2010 |
| 7733097 | Method for determining a property of a fluid for a household device Method for determining a property of a fluid for a household device includes the following steps: measurement of a physical variable of the fluid associated with the property of the fluid, in each case when a first parameter influencing the physical variable has one... | 06/08/2010 |
| 7679379 | Detecting apparatus and detecting board thereof A detecting apparatus for checking shape, size and/or position of a hole of a workpiece, includes a platform for supporting the workpiece, a detecting board, which includes a detecting unit, movably set above the platform, an electrical source, a processor, and an i... | 03/16/2010 |
| 7663381 | Electrical condition monitoring method for polymers An electrical condition monitoring method utilizes measurement of electrical resistivity of a conductive composite degradation sensor to monitor environmentally induced degradation of a polymeric product such as insulated wire and cable. The degradation sensor compr... | 02/16/2010 |
| 7659731 | Liquid properties sensor circuit A sensor circuit is coupled to a sensing element for determining a property, such as a dielectric constant, of a fuel. The circuit includes an excitation voltage signal generator, a synchronization trigger and a processing circuit configured to generate an output si... | 02/09/2010 |
| 7550979 | System and method for measuring conductivity of fluid A system and related method are provided to calibrate for wire capacitance during use to minimize error in conductivity measurement of the target fluid. The system includes a signal generator configured to drive the conductivity cell and the temperature element, wit... | 06/23/2009 |
| 7504835 | Electrochemical impedance measurement system and method for use thereof Disclosed is a method and apparatus for an electrochemical impedance measurement, and in particular circuitry and components employed for such measurements. The system employs an injected broadband AC signal to produce an associated response signal. The subsequent a... | 03/17/2009 |
| 7504834 | Detection system A detection system for monitoring an engineered structure includes an array of sensors disposable in a predetermined pattern on the engineered structure and disposable between a surface of the engineered structure and a protective coating substantially covering the ... | 03/17/2009 |
| 7477060 | Coating impedance monitoring system A detection system for monitoring an engineered structure includes an array of sensors disposable in a predetermined pattern on the engineered structure and disposable between a surface of the engineered structure and a protective coating substantially covering the ... | 01/13/2009 |
| 7463040 | Multifunctional conducting polymer structures The present invention includes the use of conducting polymers as sensors in distributed sensing systems, as sensors and operating elements in multifunctional devices, and for conducting-polymer based multifunctional sensing fabrics suitable for monitoring humidity, ... | 12/09/2008 |
| 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 probes, placed onto the surface of the component to be tested under a prede... | 12/02/2008 |
| 7456638 | MEMS based conductivity-temperature-depth sensor for harsh oceanic environment A MEMS-based silicon CTD sensor for ocean environment is presented. The sensor components are a capacitive conductivity sensor, a gold doped silicon temperature sensor, and a multiple diapghram piezoresistive pressure sensor. The sensor elements have further been pa... | 11/25/2008 |
| 7414416 | Electrical condition monitoring method for polymers An electrical condition monitoring method utilizes measurement of electrical resistivity of an age sensor made of a conductive matrix or composite disposed in a polymeric structure such as an electrical cable. The conductive matrix comprises a base polymer and condu... | 08/19/2008 |
| 7414408 | Thin deck water property sensor A thin deck water property sensor includes a base, an upper lid, a positive and negative probe, an electric connection element, a processing unit and a display unit. The base and the upper lid are coupled together to form a flat deck. The upper lid has a recess to h... | 08/19/2008 |
| 7405577 | Apparatus and method for distinguishing between flat objects An apparatus and a method for detecting the material of a surface of flat objects on a stack, in particular of objects individually separated from one another in the stack by interlayers, preferably of printing plates. The object is to reliably detect the material o... | 07/29/2008 |
| 7372282 | Method and apparatus for testing tunnel magnetoresistive effect element, manufacturing method of tunnel magnetoresistive effect element and tunnel magnetoresistive effect element A method for testing a TMR element includes a step of measuring a plurality of resistances of the TMR element by applying a plurality of voltages with different voltage values each other to the TMR element, respectively, a step of calculating a ratio of change in re... | 05/13/2008 |
| 7370514 | Determining quality of lubricating oils in use Resistivity ρ values of a lubricating oil are repeatedly determined at a predetermined temperature (range) as it is in use in a working mechanism such as a vehicle engine. Such accumulated properties over operating time of the working lubricant can be plotted graph... | 05/13/2008 |
| 7362110 | Measurement cell for liquids A cell for the measurement of resistivity and/or permittivity of a liquid, under variable ac frequency energizing, preferably includes a first set of n+1 metal plates interleaved with a second set of n places, both sets of plates preferably being of the same size an... | 04/22/2008 |
| 7362109 | Gem tester using electrical photoconductivity Diamond look-alikes like cubic zirconium, moissanite and other synthetic stones, are distinguishable from nature diamonds based on their thermal and/or electrical conductivities. Germ testers that are on the market are capable of evaluating these two parameters as i... | 04/22/2008 |
| 7352191 | Sensor assembly and method of forming the same A sensor assembly includes a sensing element electrically connected to a conductor of a flexible multiconductor cable using a conductive patch, which is electrically connected to the conductor. A method of forming a sensor assembly includes electrically connecting a... | 04/01/2008 |
| 7350397 | Device for measuring the quantity of solid particles in a gas medium A device for detecting the amount or concentration of particulate matter in a gas medium comprises a structure for the deposit of solid particles, at least a first and a second electrode associated to the structure, and means for measuring an electric quantity betwe... | 04/01/2008 |
| 7341777 | Coating for inspection of cracking in structure In a coating for the inspection of a crack in a structure wherein a coating layer having dispersed therein microcapsules with a visualizing liquid sealed therein is formed on the surface of the structure and when a crack is developed in the structure and propagated ... | 03/11/2008 |
| 7318338 | Measuring device for measuring aerosol The invention relates to a measuring device for measuring aerosols, which measuring device comprises detection means (13), means (41) for conveying a signal from the detection means (13), a first insulation (43), a second insulation (4... | 01/15/2008 |
| 7317308 | System and method for measuring electric current in a pipeline A system for measuring a voltage differential in a current-carrying pipe using a propulsion vehicle for conveying the system inside the pipe. The system includes a first contact for maintaining electrical contact with the pipe as the vehicle moves through the pipe, ... | 01/08/2008 |
