Class / Patent application number | Description | Number of patent applications / Date published |
374004000 | LEAK OR FLAW DETECTION | 71 |
20080310476 | Thermographic Method and Device for Determining the Damaged State of a Part - Disclosed is a method for determining the degree to which parts, especially parts that are exposed to loads ( | 12-18-2008 |
20090161720 | PASSIVE THERMAL IMAGE GLASS BREAKAGE DETECTOR - A system and method for detecting glass breakage using thermal imaging is provided. The system includes an infrared image detector for acquiring an infrared image of a monitored area, and a signal processor for processing the acquired images to determine removal of a glass door or window based on a comparison of the thermal signature of the acquired image against the thermal signature of a reference image. Specifically, signal processor subtracts the reference image data from the acquired image data, which results in a substantially uniform image when the acquired image matches the reference image. On the other hand, the image resulting from the subtraction exhibits significant non-uniformity when the acquired image does not match the reference image, as would be the case if the pane of glass of a door or window were broken, removed or opened. | 06-25-2009 |
20100091812 | METHOD FOR AUTOMATED TESTING OF A MATERIAL JOINT - In a method for automated, contactless and non-destructive testing of a material joint ( | 04-15-2010 |
20100158068 | BLEED LEAKAGE DETECTION SYSTEM AND METHOD - A bleed leakage detection system includes an arrangement of thermostats that are capable of detecting the place where the bleed air leakage is occurring (e.g., the failed junction in bleed air duct work). The exemplary illustrative non-limiting implementation provides a bleed leakage detection system with continuous monitoring of thermostat sensor wiring during flight and thermostat self-test function (“Initiated Built In Test”—“IBIT”). The IBIT self-testing can be initiated before the aircraft takes off or optionally, during periodic self testing that may be run during predetermined periods such as overnight when the aircraft is not being flown. By the continuous monitoring the pilot is alerted when a bleed leakage has occurred or when the bleed leakage detection system has failed. | 06-24-2010 |
20110170572 | METHOD OF TESTING SPIRAL WOUND MODULES BY THERMAL IMAGING - Various methods for testing spiral wound modules by thermal imaging are described. In a preferred embodiment, the method(s) includes flowing a gas between a scroll face and permeate collection tube of a spiral wound module and detecting temperature differences on the scroll face. Temperature differentials on the scroll face may be captured as a thermal image. The location(s) of temperature differentials on the scroll face can be correlated to defects in the module. In preferred embodiments, the subject test methods are non-destructive and can be applied to spiral wound modules in either a dry or wet condition. | 07-14-2011 |
20110249700 | METHOD FOR DETECTING DEFECT IN MATERIAL AND SYSTEM FOR THE METHOD - A defect on the surface or in the surface layer of a moving material can be detected by using a method comprising steps of: heating the surface of the material, obtaining thermal image data of the surface of the material using an infrared thermography camera while the surface of the material is being heated up at the heating step or being cooled down after heating, and detecting the defect by calculating Laplacian with respect to temperature of the surface represented by the thermal image data. When the thermal image data is obtained while the material is being heated up, a heating device and the camera is arranged so that thermal energy emitted from the heating device is reflected by the material to come into the camera. | 10-13-2011 |
20110310923 | METHOD FOR NON-DESTRUCTIVE TESTING OF AT LEAST PARTIALLY OPEN HOLLOW COMPONENTS OR SYSTEM COMPONENTS FOR TIGHTNESS IN SERIES PRODUCTION - A method for non-destructive testing of open hollow components for tightness supplies a gas under pressure into the component and cools the component in a punctiform manner. Detecting a leak out of the component using a thermographic camera and using a computer connected downstream of the thermographic camera to visualise the leak, follows. The precise location of each leak is thus detected. | 12-22-2011 |
20120134385 | TEMPERATURE CALCULATION BASED ON NON-UNIFORM LEAKAGE POWER - A system may include determination of a spatial power map associated with an integrated circuit based on an architecture of the circuit, generation of a spatial thermal map associated with the integrated circuit based on the spatial power map, and determination of a spatial leakage power map based on the spatial thermal map. In some aspects, a system includes determination of a temperature of an integrated circuit, comparison of the temperature with a thermal divergence temperature, determination that the temperature of the integrated circuit is primarily due to leakage power, and disabling of power to the integrated circuit. | 05-31-2012 |
20120287960 | Leak detection apparatus for aircraft bleed air systems - A leak detection apparatus for aircraft bleed air systems includes a supporting spacer positioned within the shroud and supported upon the bleed air duct of the aircraft. A sleeve supported on the exterior of the shroud further supports a plenum having generally cylindrical sensor tubes through which sensor wire sets pass. A director positioned within the shroud above the bleed air duct is coupled to a generally cylindrical accumulator which in turn is in communication with the plenum. Appropriate apertures are provided to vent and direct bleed air from the shroud interior to the sensor wire sets and thereafter vent outwardly into cooler ambient air. The sensor wire sets respond to the temperature of the bleed air leakage to trigger alarm apparatus. | 11-15-2012 |
20130058373 | FAULT DIAGNOSIS DEVICE FOR TEMPERATURE SENSOR - A fault diagnosis device conducts a fault diagnosis in a temperature sensor. At starting an internal combustion engine, a thermal equilibrium condition may be established and temperature deviations of temperatures detected by at least two reference temperature sensors from each other may be equal to or less than a predetermined value, with the temperatures detected by the reference temperature sensors being greatly deviated from one detected by a temperature sensor being diagnosed. In this case, if the temperatures detected by the reference temperature sensors do not drop by a predetermined temperature or more from starting the engine until a predetermined time elapses, the fault diagnosis device determines that the temperature sensor being diagnosed is faulty. | 03-07-2013 |
20130077649 | MEASURING THE DAMAGE TO A TURBINE-BLADE THERMAL BARRIER - A method for evaluating damage to a thermal barrier applied to a component made from a metal substrate, the thermal barrier including a sublayer of aluminium and a layer of columnar-structure ceramic material, the sub-layer being positioned between the substrate and the ceramic layer, the method including: a first calibration including selection of a determined number of calibration components that have undergone various degrees of damage, exposing them for a given length of time to radiation, measuring temperature obtained at the surface after the given length of time and establishing a curve connecting an increase in temperature to damage, and a second measuring the damage to the thermal barrier of the component including exposure to the radiation for the length of time, measuring the temperature obtained, and relating the increase in temperature to the calibration curve in order, from the curve, to extract the level of damage. | 03-28-2013 |
20130215926 | AUTOMATED SYSTEM AND METHOD FOR TESTING THE EFFICACY AND RELIABILITY OF DISTRIBUTED TEMPERATURE SENSING SYSTEMS - Automated systems and methods for testing the efficacy and reliability of distributed temperature sensing (DTS) system. The DTS system has a fibre optic sensing cable laid out on a structure to be monitored, and a DTS unit for sensing temperature along a sensing line at locations thereof. The DTS unit is optically coupled to the sensing cable. The sensing cable is optically coupled to a test cable to form the sensing line. Also provided, is a cooling device for cooling the test cable. A controller periodically actuates the cooling device to thereby test the efficacy and reliability of the DTS system. A relay configured for communication with the DTS unit and the controller is operable to trigger an alarm condition in response to a signal received from the DTS unit indicative that a temperature drop in the sensing line at a location thereof has been detected. | 08-22-2013 |
20130235897 | METHOD AND DEVICE FOR NON-DESTRUCTIVE TESTING OF WIND TURBINE BLADES - The method CND of non-destructive testing of a wind turbine blade includes: stressing the structure of the blade through a modification of a physical characteristic of a fluid filling the hollow interior volume of the blade; observing zones to be tested of the exterior surface of the blade, with the contactless measurement of a physical parameter on points of the exterior surface of the blade; and comparing the map of the values of the physical parameter measured with a reference map. A corresponding system CND for checking the structural integrity of a wind turbine blade includes an aerothermic device for modifying the physical conditions, temperature or pressure, of a fluid filling the hollow interior volume of the blade, a device for contactless measurement of a physical parameter, temperature or dimensions, of the exterior surface of the blade, and a device for processing the measurements. | 09-12-2013 |
20130322487 | TEMPERATURE DETECTING DEVICE AND METHOD - A temperature detecting device for a power conversion device is provided in which the number of components can be reduced. An exemplary embodiment of the temperature detecting device includes: a plurality of temperature detecting elements that are provided in correspondence with a plurality of temperature detection objects, each temperature detecting element outputting a signal having a correlation with the temperature of the temperature detection object by being supplied power by a common power source; and a temperature detector that detects the temperatures of the temperature detection objects based on the signals having correlation with the temperatures of the temperature detection objects outputted from the temperature detecting elements. The temperature detector detects an average temperature of at least two temperature detection objects among the plurality of temperature detection objects or respective temperatures of the plurality of temperature detection objects based on the output signals. | 12-05-2013 |
20140023107 | APPARATUS AND METHOD OF DETERMINING FAILURE IN THERMOSTAT - An apparatus is provided for determining a failure in a thermostat that controls the flow of a coolant into a radiator in response to an actual water temperature of the coolant for an engine in a vehicle. The apparatus includes a detector that detects the actual water temperature; an estimator that calculates an estimated water temperature of the coolant; and a failure determining unit that compares the actual water temperature detected with the estimated water temperature calculated by the water temperature estimator under cold start of the engine and determines whether the thermostat is valve-open failure. In an engine nonoperating mode including at least automatic stop of the engine, the water temperature estimator applies a behavior of the actual water temperature to an estimated water temperature calculated immediately before automatic stop of the engine to calculate an estimated water temperature in the engine nonoperating mode. | 01-23-2014 |
20140044146 | METHOD AND APPARATUS FOR DETECTING TRACK FAILURE - A railroad track monitoring system is described which detects changes in rail track geometry that could lead to derailments, The changes in geometry are detected via analysis of temperature and stress parameters that are collected at one or more sensors installed on the track. Methods are described which provide faster detection and reduced false alerts, thereby saving time and expense to the railroad system. | 02-13-2014 |
20140050245 | THERMAL PROTECTION OF ROTATING COMPONENTS IN FUEL-VAPOR ZONES - A system for monitoring a rotating component in a fuel-vapor zone includes a housing of the rotating component in contact with the fuel-vapor zone; at least one temperature sensor in contact with an outer surface of the housing, wherein the at least one temperature sensor monitors a temperature of the outer surface of the housing and provides an indication when the temperature exceeds a selected temperature; and a controller connected to the at least one temperature sensor to receive the indication, wherein the controller terminates operation of the rotating component upon receipt of the indication. | 02-20-2014 |
20140064321 | ABNORMALITY DETECTION DEVICE - An estimating unit | 03-06-2014 |
20140092934 | Method and System for Evaluating Creep Damage of High Temperature Component - Disclosed is a method of evaluating creep damage of a high temperature component which assesses the degree of creep damage of a high temperature component for use under a high temperature environment. In the method of evaluating creep damage of a high temperature component, temporal change in damage parameter of the high temperature component under an uniaxial condition and temporal change in multiaxiality of the high temperature component are obtained, and the temporal change in damage parameter is corrected by the temporal change in multiaxiality to assess the degree of creep damage of the high temperature component. | 04-03-2014 |
20140185647 | DIAGNOSTIC DEVICE FOR TEMPERATURE SENSOR - A diagnostic device for a temperature sensor is provided in a power transfer device that transfers drive power generated by a drive power source in a vehicle. The diagnostic device includes: a warm-up state determining unit to determine whether the drive power source is in a predetermined warm-up completion state; and a low temperature offset malfunction determining unit to determine a low temperature offset malfunction in the temperature sensor when the warm-up state determining unit determines that the warm-up completion state is established, and the detected value from the temperature sensor is lower than a predetermined low temperature threshold. | 07-03-2014 |
20140185648 | PILE SENSING DEVICE AND METHOD OF USING THE SAME - A system for monitoring the forming of a solid object having a sensor string positionable in a forming structure before the curing process and a communication line extending along a string axis between a first and second end. The string further including a plurality of sensors joined to the communication line between the ends and each sensor being mounted at a set position on the line. Each sensor having a sensor body and a sensor housing and the sensor body including an electrical connecter to electrically join an electrical structure to the communication line at the set position. The electrical structure including a temperature sensor configured to monitor temperature near the set position and further including an electronic identification code corresponding to the set position of the sensor along the axis. The system further including a transmitting device for selectively communicating the temperature and identification code. | 07-03-2014 |
20140341249 | DIAGNOSIS DEVICE FOR TEMPERATURE SENSOR - A diagnosis device for a temperature sensor provided to a power transmission device transmits driving force generated by a driving power source of a vehicle. The diagnosis device includes: an output voltage estimating unit to calculate an output voltage estimation value of the temperature sensor, based on the operating state of the vehicle; and an output voltage stuck malfunction determining unit to determine an output voltage stuck malfunction of the temperature sensor, in a case where the amount of change of the output voltage estimation value is equal to or above a first threshold value, and the amount of change of output voltage of the temperature sensor is equal to or below a second threshold value. | 11-20-2014 |
20140355644 | Wireless Sensor for Rotating Elements - A system for measuring a physical characteristic of a bearing includes a permanent magnet and a magnetic sensor. The permanent magnetic is coupled to at least a portion of a bearing, and has a magnetic field that changes as a function of the physical characteristic. For example, the permanent magnet has a magnetic characteristic that changes as a function of temperature. The magnetic sensor is operably disposed in a magnetic field sensing relationship with the permanent magnet, and is configured to generate a voltage signal and/or current signal corresponding to a sensed magnetic field. | 12-04-2014 |
20150063404 | BATTERY PACK LEAK DETECTION ASSEMBLY AND METHOD - A method of detecting a leak in a battery pack according to an exemplary aspect of the present disclosure includes, among other things, calculating a predicted amount of thermal energy at a position, measuring an actual amount of thermal energy at the position, and comparing the predicted amount to the actual amount to identify if a battery pack is leaking. | 03-05-2015 |
20150085894 | METHOD FOR DIAGNOSING FAULT WITHIN A FUEL VAPOR SYSTEM - A method for diagnosing a fault within a evaporative emission control system of an automotive vehicle. The method monitors the carbon canister temperature during a system leak test. The leak test here is undertaken with the engine running, and engine vacuum is employed to evacuate the EVAP system. If the evacuation succeeds in reaching a target vacuum, and a temperature gain in the canister is observed, then the system infers proper system operation. Failure to achieve a target vacuum causes the system to determine a likely cause of the failure based on the temperature response of the carbon canister. | 03-26-2015 |
20150092809 | SYSTEMS AND METHODS FOR ON-BOARD DIAGNOSTICS OF A PARTICULATE MATTER FILTER - An apparatus, system, and method are provided for determining a health value of a catalyzed diesel particulate filter using a midbed temperature of the catalyzed diesel particulate filter and a reference temperature. | 04-02-2015 |
20150092810 | WRAPPED-PRODUCT QUALITY CONTROL AND PACKING METHODS, AND WRAPPED-PRODUCT QUALITY CONTROL AND PACKING DEVICES - A wrapped-product quality control method and a wrapped-product packing method include providing a wrapped product including a product in a wrapper; supplying the wrapped product on a measuring background in a capture range of an infrared-sensitive imaging device, the product having a product temperature different from a measuring background temperature of the measuring background, and the wrapper having a wrapper temperature; capturing with the infrared-sensitive imaging device infrared radiation from the wrapped product and the measuring background; providing an image of the product or of the wrapped product from the infrared radiation captured with the infrared-sensitive imaging device; and analyzing the image for quality control of the wrapped product. A corresponding wrapped-product quality control device and a corresponding wrapped-product. | 04-02-2015 |
20150124849 | DETECTING TEMPERATURE SENSOR ANOMALIES IN CONNECTED THERMOSTATS - Discussed generally herein are systems, apparatuses, techniques, and software for determining if a temperature sensor is properly located. In one or more embodiments, a technique can include receiving a series of temperature readings from a temperature sensor, determining if the temperature sensor is properly located as a function of the received temperature readings, and in response to determining that the temperature sensor is not properly located, recording data indicating that the temperature sensor is not properly located. | 05-07-2015 |
20150124850 | DETECTING TEMPERATURE SENSOR ANOMALIES IN CONNECTED THERMOSTATS - Generally discussed herein are techniques, software, apparatuses, and systems configured for detecting an anomaly in a temperature sensor. In one or more embodiments an apparatus can include one or more computer processors configured to: (1) receive a series of temperature sensor readings from a temperature sensor, (2) determine if the temperature sensor is exhibiting behavior consistent with experiencing oscillations as a function of the received sensor readings, and (3) in response to determining that the temperature sensor is exhibiting behavior consistent with experiencing oscillations, recording in a memory data indicating that the temperature sensor is exhibiting behavior consistent with experiencing oscillations. | 05-07-2015 |
20150139268 | METHOD FOR MANAGING TEMPERATURE ANOMALY IN HYDROGEN TANK, AND SYSTEM FOR MONITORING TEMPERATURES IN SAME - A method for managing a temperature anomaly in a hydrogen tank includes a temperature checking step for defining temperature values detected by temperature, a temperature comparing step for comparing the temperature values with each other and then checking whether there is a specific temperature difference among the temperature values, a temperature sensor judging step for judging the temperature sensor in which the specific temperature difference is generated as an abnormal temperature sensor, and judging the temperature sensor in which the specific temperature difference is not generated as a normal temperature sensor, and an abnormal temperature sensor managing step for applying the temperature value of the temperature sensor judged as the normal temperature sensor when the hydrogen tank in which the temperature sensor judged as the abnormal temperature sensor is provided is filled or amount of fuel in the hydrogen tank is calculated. | 05-21-2015 |
20150146758 | RADIO FREQUENCY IDENTIFICATION MONITORING OF STENTS - A method and system of monitoring environmental exposure of stents using radiofrequency identification is disclosed. | 05-28-2015 |
20160003678 | Infrared-Based Vehicle Component Imaging and Analysis - An improved system for evaluating one or more components of a vehicle is provided. The system includes a set of imaging devices configured to acquire image data based on infrared emissions of at least one vehicle component of the vehicle as it moves through a field of view of at least one of the set of imaging devices. An imaging device in the set of imaging devices can include a linear array of photoconductor infrared detectors and a thermoelectric cooler for maintaining an operating temperature of the linear array of detectors at a target operating temperature. The infrared emissions can be within at least one of: the mid-wavelength infrared (MWIR) radiation spectrum or the long wavelength infrared (LWIR) radiation spectrum. | 01-07-2016 |
20160025662 | SYSTEMS AND METHODS OF MONITORING A THERMAL PROTECTION SYSTEM - A method of monitoring a thermal protection system coupled to a structural component is provided. The thermal protection system includes a thermally insulative body and at least one layer of thermochromatic material applied thereon such that the at least one layer is positioned between the thermally insulative body and the structural component. The method includes determining a value of a thermochromatic property of the at least one layer of thermochromatic material, wherein the value of the thermochromatic property is responsive to an amount of heat applied to the at least one layer of thermochromatic material, comparing the value to a baseline value of the thermochromatic property, and determining degradation of the thermal protection system when the value of the thermochromatic property deviates from the baseline value. | 01-28-2016 |
20160047765 | Method and Apparatus for Leakage Monitoring for Oil-Immersed Electrical Transformers - The present invention comprises an apparatus and method for detecting a loss of oil from an oil-immersed transformer, based on fitting a transformer top-oil temperature model to online measurements in an iterative optimization process that yields fitted values for a first model parameter representing the top-oil temperature rise over ambient temperature and a second model parameter representing the oil time constant. Among the several advantages seen in the contemplated apparatus and method is the reduction in required instrumentation, whereby transformer oil leaks are indirectly detected without requiring pressure sensors or mechanical floats, although the presence of such sensors is not excluded by the teachings herein. | 02-18-2016 |
20160069829 | HARDWARE AND METHOD FOR IMPLEMENTATION OF IN SITU ACOUSTIC THERMOGRAPH INSPECTIONS - A system and method include an acoustic thermography stack and a frame that the stack is slidably mounted to. The frame includes an end frame portion with a blade stop, and an air cylinder provides force to move the stack up and down a rail of the frame such that a turbine blade may be clamped between a cap of the stack and the blade stop. The clamped blade is excited using the stack, and an infrared camera is used to detect critical indications in the blade. | 03-10-2016 |
20160131551 | BLEED AIR DUCT LEAK SYSTEM REAL-TIME FAULT DETECTION - A method and apparatus for testing a duct leak detection system of an aircraft is disclosed. A sensor of the duct leak detection system is selected at an interface of the duct leak detection system. An alternating current is sent through the selected sensor and a resistance of the selected sensor is measured using the alternating current. An indicative signal is generated at the interface when the measured resistance of the selected sensor is outside of a specification of the selected sensor. | 05-12-2016 |
20160202198 | PORTABLE ACOUSTIC THERMOGRAPHY OF IN SITU L-O BLADES BACKGROUND OF THE INVENTION | 07-14-2016 |
20220136920 | THERMAL GAS INSPECTION OF PLUGGED HONEYCOMB BODY - Improved inspection techniques are described herein for identifying leaks in a plugged honeycomb body. The improved inspection techniques utilize a pore impediment and a test gas. The pore impediment is injected into the plugged honeycomb body, and the test gas is forced into the plugged honeycomb body. A thermal detector is used to collect thermal data from an inspection region of an outlet end of the plugged honeycomb body, and the thermal data is used to identify defects in the plugged honeycomb body. | 05-05-2022 |
374005000 | With heating or cooling of specimen for test | 33 |
20080240201 | METHOD FOR EVALUATING SOLDER JOINT PORTION - A method for evaluating a solder joint portion by means of which a part and a substrate are joined to each other includes a preparation process for preparing the substrate including the solder joint portion, a thermal shock process for applying thermal shock to the solder joint portion multiple times, and an evaluation process for obtaining a change of a crystal grain size in the solder joint portion caused by the application of the thermal shock so as to evaluate a lifespan of the solder joint portion based on the change of the crystal grain size obtained. | 10-02-2008 |
20080259991 | Apparatus and method incorporating an indicator chamber for elevated temperature pressure vessel or weld testing - In a method and system for testing the integrity of pressure vessels, or welds on flanges or the like, at elevated temperatures, a pressurized mixture of a gaseous environmentally safe composition is formed within an indicator chamber in a housing receiving a pressurized gas and containing a surface in the chamber upon which is placed an indicator composition including a marker component, whereby the marker component is carried by the carrier gas from within the chamber and through a conduit to the pressure vessel or weld area. The carrier gas and the indicator or marker component are injected in an area between the inner and outer weld of a terminal flange welded to a tubular pipe section or casing. The pressurized composition includes a marker component or sub-composition which is detected by a detection apparatus which scans the pressure vessel area to be tested, or weld area. The pressure of the gas may also be monitored to observe losses in pressure indicative of flaws in the pressure vessel area or welds. The integrity of the pressure vessel or welds is tested at elevated temperature permitting remedial repairs to be made without reheating the work area of the pressure vessel or on a tubular pipe or casing. | 10-23-2008 |
20080304539 | ELECTROMAGNETICALLY HEATING A CONDUCTIVE MEDIUM IN A COMPOSITE AIRCRAFT COMPONENT - Nondestructive examination is performed on a composite aircraft component including a composite body and a conductive medium. The conductive medium is substantially more conductive than the composite body. The nondestructive examination includes applying an electromagnetic field that penetrates the composite body and heats the conductive medium, and creating a thermal image of the conductive medium to reveal conductivity information about the conductive medium. | 12-11-2008 |
20090003407 | Nondestructive Residential Inspection Method and Apparatus - This invention provides an apparatus for nondestructive residential inspection and various methods for using a thermal imaging apparatus coupled to inspect exterior residential components, interior residential component, for mold. More specifically, this invention provided a computerized method to facilitate inspecting a residential building. | 01-01-2009 |
20090046758 | Induction Thermography Test Stand - The induction thermography test stand has at least two inductors arranged angled relative to one another, at least in sections, and at least one alternating current source for powering the inductors with alternating currents which differ in terms of their frequency and/or phase such that a current with a temporally changing direction can be induced in a test module. With a method for determining flaws in test modules using induction thermography, a current with a temporally changing direction is induced in the test module. | 02-19-2009 |
20090046759 | Nondestructive Residential Inspection Method - This invention provides an apparatus for nondestructive residential inspection and various methods for using a thermal imaging apparatus to inspect residential building components. More specifically, this invention provided a method to rapidly inspect a residential building for moisture in basement walls, uninsulated building components, misaligned structural members or small animal intestation. | 02-19-2009 |
20090116533 | Method and apparatus for testing and evaluating machine components under simulated in-situ thermal operating conditions - A method and apparatus is described for enabling the testing and evaluation of industrial machine components and, in particular, gas turbine engine components, under simulated in-situ thermal operating conditions for effectively evaluating new component designs and repair techniques. A specimen machine component/part is placed in a test chamber and cyclically heated and cooled while being monitored to obtain information regarding the initiation and propagation of a crack within the structure of the component. Information regarding the number of heating and cooling cycles sustained by the component until crack initiation and information indicating the rate of crack propagation are acquired and compared over multiple heating-cooling cycles to evaluate components and repair techniques. In one example implementation, the component is monitored during cyclic heating-cooling for spontaneous acoustic emissions and acoustic emission waveform data is recorded and analyzed to determine crack initiation and/or propagation. | 05-07-2009 |
20090238235 | METHOD AND APPARATUS FOR DEFECT DETECTION IN A COLD PLATE - Method and apparatus are provided for detecting a defect in a cold plate, configured for cooling an electronics component. The method includes: establishing a first fluid flow through the cold plate, the first fluid flow being at a first temperature; impinging a second fluid flow onto the interface surface, the second fluid flow being at a second temperature, the first temperature and the second temperature being different temperatures; obtaining an isotherm mapping of the interface surface of the cold plate while the first fluid flow passes through the cold plate and the second fluid flow impinges onto the interface surface; and using the isotherm mapping to determine whether the cold plate has a defect. In one embodiment, an infrared-transparent manifold is employed in impinging the second fluid flow onto the interface surface, and the isotherm mapping of the interface surface is obtained through the infrared-transparent manifold. | 09-24-2009 |
20090245321 | CHARACTERIZATION OF FLAWS IN COMPOSITES IDENTIFIED BY THERMOGRAPHY - A method for identifying types of flaws in a composite object includes: a) rapidly heating the surface of the object; b) recording pixel intensities in a sequence of IR images; c) determining temperature-versus-time data for each of the pixels from the IR images; and d) determining what type of flaw if any corresponds to each of the pixels using the temperature-versus-time data determined in step (c). A contrast curve derived from the temperature-versus-time data may be used in determining what type of flaws if any corresponds to each of the pixels. The contrast curve may be determined by subtracting a synthetic reference curve from a temperature time curve from the temperature-versus-time data. The types of flaws may be determined from size and/or shapes of peaks in the contrast curves. Some flaws are delaminations, layers of porosity, and uniformly distributed porosity. | 10-01-2009 |
20100086003 | DETECTING DEFECTS DURING LASER WELDING - A method for detecting defect in a weld seam during laser welding. The method includes performing a two-dimensionally locally resolved detection of radiation that is emitted by a solidified molten mass that is adjacent to a liquid melting bath. The method also includes determining at least one characteristic value for heat dissipation in the solidified molten mass by evaluating the detected radiation along at least one profile-section of the solidified molten mass, and detecting a defect in the weld seam by comparing the at least one characteristic value with at least one reference value. | 04-08-2010 |
20100118912 | QUALITY CONTROL OF THE FRIT FOR OLED SEALING - A method of finding defects in sealing material formed as a frame line on a glass plate includes irradiating the frame line of sealing material. A temperature of the irradiated sealing material is measured and a change of the temperature caused by a nonuniformity in sealing material is detected. Another aspect features a method of hermetically sealing a thin film device between glass plates. Sealing material is dispensed on a cover glass plate in the form of a frame line cell. The sealing material is pre-sintered onto the cover glass plate and cooled. A laser beam is moved around the frame line on the sealing material. A temperature of the sealing material contacted with the laser beam is measured. A change in the temperature (ΔT) caused by a nonuniformity in the sealing material is measured. Further aspects include a feedback process, infrared imaging and use of delta temperature data to increase sensitivity of temperature measurement data. | 05-13-2010 |
20110007774 | Thermography Inspection of Surface Discontinuities - A method for detecting surface discontinuities in a test specimen. The method includes applying a one or more substances including a detection medium to the test specimen wherein the detection medium enters at least one surface discontinuity in the test specimen. The specimen surface is monitored for discontinuity signatures produced by the detection medium. The monitoring includes monitoring the detection medium to detect a temperature differential indicative of a surface discontinuity in the test specimen wherein the discontinuity signatures include a warm signature emitted by the detection medium that has entered the surface discontinuity. | 01-13-2011 |
20120063485 | THERMAL ENDURANCE TESTING APPARATUS AND METHODS FOR PHOTOVOLTAIC MODULES - Apparatus and methods for testing the thermal endurance of a glass substrate of a photovoltaic module are provided. The apparatus generally includes, in one embodiment, a testing chamber defining an interior space having an interior atmosphere. A refrigeration unit is operably positioned with the testing chamber to control the interior atmosphere's temperature. A mounting system is positioned within the interior space of the testing chamber and configured to hold the photovoltaic module while exposing the glass substrate of the photovoltaic module. An edge cooling system is positioned in relation to the mounting system such that the photovoltaic module held by the mounting system has a first side edge in contact with the edge cooling system. A light system is also positioned within the interior space of the testing chamber to illuminate the glass substrate of the photovoltaic module. | 03-15-2012 |
20120170610 | Method and System for Detection of Fluid Invasion in An Annular Space of Flexible Pipe - A system and method are provided for detecting fluid invasion of an annular space in a pipe structure. The system includes a thermal element and a temperature sensing element placed in the vicinity of each other in the annular space of the pipe structure. A thermal signal is generated by the thermal element. The temperature sensing element is connected to a monitor that monitors and processes the thermal signal. As the thermal signal changes when conducted through different types of fluids, the invasion of an annular space by seawater that normally contains oil or gas may be reliably detected. | 07-05-2012 |
20120219034 | METHOD OF DETECTING WRINKLES IN A FIBER REINFORCED LAMINATED STRUCTURE AND AUXILIARY DEVICE FOR PERFORMING THERMAL SCANS OF A FIBER REINFORCED LAMINATED STRUCTURE - A method of detecting wrinkles in a fiber reinforced laminated structure is provided. In this method, the structure is locally heated or cooled, the location of the heating or cooling being moved along a defined path, the temperature of the structure is measured at a measuring location being different from the location of the heating or cooling, the measuring location being moved along the same path as the location of the heating or cooling, and wrinkles are detected from temperature anomalies found along the defined path. | 08-30-2012 |
20130077650 | Thermographic Test Method and Testing Device for Carrying Out the Test Method - A thermographic test method locally resolves detection and identification of defects near the surface in a test object. A surface area of the test object is heated up. A series of thermographic images following one after another at a time interval is recorded within a heat propagation phase, each image representing a local temperature distribution in a surface region of the test object recorded by the image. Positionally correctly assigned temperature profiles are determined from the images, each positionally correctly assigned temperature profile being assigned to the same measuring region of the test object surface. Variations over time of temperature values are determined from the temperature profiles for a large number of measuring positions of the measuring region. These variations are evaluated on the basis of at least one evaluation criterion indicative of the heat flow in the measuring region. | 03-28-2013 |
20130121368 | DEVICE EVALUATING THERMOMECHANICAL FATIGUE OF A MATERIAL - A system for cooling and holding a testpiece in an effective manner while the testpiece is subjected locally to high heat flux. The testpiece includes an inside face extended by parallel strips that leave between them channels for passing a cooling fluid, and parallel fins of an intermediate part are inserted between the strips. | 05-16-2013 |
20130128914 | THERMAL TEST APPARATUS AND METHOD - Thermal test apparatus comprising a specimen supported by a fixture, a thermal shroud comprising a flexible insulating fabric forming an enclosure around at least a portion of the specimen, and a temperature controlled air supply connected to an opening formed in the enclosure for delivering a supply of temperature controlled air into the enclosure. Also, a method of conducting a thermal test. | 05-23-2013 |
20130142213 | METHOD FOR MEASURING CORROSION IN A CONCRETE BUILDING - The invention relates to a process for controlling the corrosion of a concrete structure, in which said structure includes at least one sensor comprising a metal element located at a determined depth between the surface of the concrete and the first reinforcement bed, said process including the measurement of the corrosion of said metal element by implementing:
| 06-06-2013 |
20130148689 | NON-DESTRUCTIVE TESTING SYSTEM - Non-destructive testing system performs accurate testing as to whether lamination joining portion of different metal materials is in strong joining state by secure metal joining. The system sets a lamination joining portion of different metal materials of a work to a certain position and angle. Laser light in certain waveform is applied to lamination joining portion surface to capture images by infrared camera, and data processing device obtains infrared images. Based on infrared images, Fourier transform is performed on each pixel of infrared images, and phase image is created by console device. Based on created phase image, effectiveness/defectiveness of joining is determined. In this non-destructive testing, whether reflection by vertical wall in vicinity is significant is determined, based on intensity of infrared images obtained immediately after irradiation with laser and angle between laser light optical axis and testing part surface is finely adjusted to obtain infrared images with less noise. | 06-13-2013 |
20130230072 | Flaw Detection Method and Apparatus for Fuel Cell Components - Various embodiments provide systems and methods for detecting defects in components of a fuel cell. Embodiment methods and systems for detecting a defect in an interconnect for a fuel cell system include thermally exciting the interconnect using optical radiation and/or inductive stimulation, detecting a thermal response of the interconnect, and based on the thermal response, determining the presence or absence of a defect in the interconnect, such as a lateral or through crack in the interconnect. | 09-05-2013 |
20140119399 | METHOD FOR DETECTING CRYSTAL DEFECTS - A method for detecting a crystal defect in a silicon single crystal wafer doped with nitrogen, the silicon single crystal wafer whose initial oxygen concentration is 8 ppma (JEIDA) or lower. The method further includes the steps of: making a crystal defect of defect size of 25 nm or smaller apparent and detectable by implanting oxygen into the crystal defect by performing heat treatment on the silicon single crystal wafer in an oxygen atmosphere; and detecting the crystal defect of the silicon single crystal wafer after the heat treatment temperature is set such that, when the ratio between the oxygen solid solubility and the initial oxygen concentration of the silicon single crystal wafer heat treatment is set at α=the oxygen solid solubility/the initial oxygen concentration, α falls within a range from 1 to 3. | 05-01-2014 |
20140153608 | METHOD FOR MEASURING THICKNESS BY PULSED INFRARED THERMAL WAVE TECHNOLOGY - A method for measuring thickness or defect depth by pulsed infrared thermal wave technology is described. The method includes heating a measured object by pulsed heating devices, and at the same time, obtaining a thermal image sequence on the surface of the measured object by an infrared thermography device, and storing the thermal image sequence in a general-purpose memory. The method also includes multiplying a temperature-time curve at every point of the thermal image sequence by a corresponding time, thereby obtaining a new curve. The method also includes calculating a first-order differential and obtaining a peak time thereof. The method also includes use of one or more formulas to thereby determine the thickness or the defect depth of the measured object. | 06-05-2014 |
20140198821 | Methods of Detecting Latent Stains on a Surface - Methods for identifying chemical contrasts on a common surface are generally provided. The presence of a stain on a surface can be detected by applying a testing vapor, such as water, onto the surface and monitoring the surface with an infrared camera that detects wavelengths of about 700 nm to about 1 mm and/or a microbolometer that detects wavelengths of about 7.5 μm to about 14 μm. The surface may be at room temperature or preheated during the detection method. | 07-17-2014 |
20140269815 | Method and Apparatus for Identifying Defects in Susceptors of Microwave Food Containers - A method and apparatus are disclosed for detecting defects in susceptors of microwave food containers during production of such containers. The method comprises the steps of advancing the microwave food containers in a downstream direction along a processing path; subjecting each microwave food container as it moves along the processing path to microwave radiation sufficient to heat the susceptors of the container without destroying the susceptors of the container; obtaining an image preferably in the infrared spectrum of the heated susceptors of each container; determining if the image is indicative of a defect in the susceptors of each container; and removing from the processing path containers that are indicated to have defective susceptors. The apparatus includes a conveyor that moves containers through a first microwave absorbing cavity, a resonator cavity wherein containers are subjected to microwave energy, and a second microwave absorbing cavity wherein an image of each container is obtained. | 09-18-2014 |
20140269816 | DETECTING DEFECTS DURING LASER WELDING - A method for detecting defect in a weld seam during laser welding. The method includes performing a two-dimensionally locally resolved detection of radiation that is emitted by a solidified molten mass that is adjacent to a liquid melting bath. The method also includes determining at least one characteristic value for heat dissipation in the solidified molten mass by evaluating the detected radiation along at least one profile-section of the solidified molten mass, and detecting a defect in the weld seam by comparing the at least one characteristic value with at least one reference value. | 09-18-2014 |
20140294036 | THERMOGRAPHY FOR BATTERY COMPONENT QUALITY ASSURANCE - Methods and apparatus for the detection of irregularities in a thin film by measurement of transient thermal response. | 10-02-2014 |
20150078414 | METHOD OF TESTING SEMICONDUCTOR DEVICE AND APPARATUS OF TESTING SEMICONDUCTOR DEVICE - According to one embodiment, in a method of testing a semiconductor device, the semiconductor device has a semiconductor element and a substrate which are bonded by bonding material including metal fine particles. Image data of a heat distribution in the semiconductor device are temporally acquired while heating the semiconductor device. A time change of a fractal dimension based on the image data is calculated. An inclination of the time change of the fractal dimension is calculated. The inclination and a reference inclination set in advance are compared. Whether or not the semiconductor device is good is determined. | 03-19-2015 |
20150085895 | LAMP ASSEMBLY FOR A THERMOGRAPHIC NONDESTRUCTIVE EVALUATION SYSTEM - A thermographic nondestructive evaluation system includes a lamp assembly having a lamp. The lamp is configured to be positioned within an internal cavity of a target object and to emit an energy pulse toward an interior surface of the internal cavity. The lamp includes at least one curved portion, the at least one curved portion is curved relative to a longitudinal axis of the lamp, and a first curvature of the curved portion is selected to substantially correspond to a second curvature of the internal cavity. | 03-26-2015 |
20150316496 | DEVICE AND METHOD FOR ANALYZING DEFECTS BY USING HEAT DISTRIBUTION MEASUREMENT - The present invention provides a method for analyzing defects by using heat distribution measurement, comprising: a sample loading unit for loading a sample to check whether or not there is a defect through heat distribution characteristics; a light source for radiating visible light onto the sample; a power supply unit for generating a driving signal in order to periodically heat the sample; a detection unit for detecting reflected light from the surface of the sample; and a signal generator for synchronizing the detection unit with the driving signal of the power supply unit. | 11-05-2015 |
20150355120 | APPARATUS, SYSTEM AND METHOD OF DETECTING LEAKAGE IN A CHAMBER - Some demonstrative embodiments include apparatuses, devices and/or methods of detecting leakage in a chamber. For example, an apparatus may include a leakage detector to detect leakage in a chamber based on at least one set of power values corresponding to at least one respective heating zone of the chamber, the set of power values including a plurality of power values corresponding to a respective plurality of manufacturing processes performed by the chamber, wherein a power value of a manufacturing process is based on a plurality of power control values to control the heating zone during the manufacturing process. | 12-10-2015 |
20160011133 | INFORMATION OUTPUT APPARATUS | 01-14-2016 |
20160061758 | THERMAL SHOCK RESISTANCE TESTING METHOD AND THERMAL SHOCK RESISTANCE TESTING APPARATUS - A ceramic body is heated to a predetermined temperature by using a furnace, and a cooling gas is ejected toward a first end face of the ceramic body so that the first end face of the ceramic body is cooled. At this time, the temperature of the first end face of the ceramic body is measured by a radiation thermometer provided on the same side from which the cooling gas is ejected, and the internal temperature is measured by a thermocouple provided in the ceramic body. Thereafter, a thermal shock resistance test in which actual use conditions are simulated is performed by obtaining the temperature gradient of the ceramic body from measurement results of the temperature of the first end face of the ceramic body and the internal temperature and checking the absence or presence of cracks that occurs to the ceramic body. | 03-03-2016 |