30 results about "Ir thermography" patented technology

A device and method to diagnose an internal abnormality in a living subject by sensing a passively occurring electromagnetic radiation signal associated with the abnormality and inside an orifice of the subject. Diagnosis includes detection, imaging or identification of the abnormality. An instrument is used either to bring a sensor into the orifice or to transmit the signal to a sensor located outside of the orifice. An example of the instrument includes a prior art endoscope.

A method for continuously monitoring the working condition of a heat recovery steam generator (“HRSG”) using infrared thermography, comprising the steps of identifying target locations inside the HRSG, positioning one or more infrared cameras to continuously monitor and record the temperature at each target location, generating continuous thermographic images corresponding to selected components and locations at each target locations, comparing the continuous thermographic images to corresponding, stored base line images and generating a set of comparative data reports in real time for each target location in order to predict the life span or potential failure of HRSG components.

The present invention provides a method for the detection of inflammation in animals using infrared thermography. The invention also provides a method for the detection of diseases or disorders that induce inflammation using infrared thermography. The present invention further provides a method for the detection of infections in animals using infrared thermography.

Described are methods and systems for providing improved defect detection and analysis using infrared thermography. Test vectors heat features of a device under test to produce thermal characteristics useful in identifying defects. The test vectors are timed to enhance the thermal contrast between defects and the surrounding features, enabling IR imaging equipment to acquire improved thermographic images. In some embodiments, a combination of AC and DC test vectors maximize power transfer to expedite heating, and therefore testing. Mathematical transformations applied to the improved images further enhance defect detection and analysis. Some defects produce image artifacts, or “defect artifacts,” that obscure the defects, rendering difficult the task of defect location. Some embodiments employ defect-location algorithms that analyze defect artifacts to precisely locate corresponding defects.

An inspection system is provided to examine internal structures of a target material. This inspection system combines an ultrasonic inspection system and a thermographic inspection system. The thermographic inspection system is attached to ultrasonic inspection and modified to enable thermographic inspection of target materials at distances compatible with laser ultrasonic inspection. Quantitative information is obtained using depth infrared (IR) imaging on the target material. The IR imaging and laser-ultrasound results are combined and projected on a 3D projection of complex shape composites. The thermographic results complement the laser-ultrasound results and yield information about the target material's internal structure that is more complete and more reliable, especially when the target materials are thin composite parts.

An actively quenched lamp includes a lamp and an active quenching means configured to quench the lamp. An infrared (“IR”) thermography imaging system includes at least one lamp configured to heat a surface of an object to be imaged, at least one active quenching means configured to quench the lamp, and an IR camera configured to capture a number of IR image frames of the object. A method, for actively controlling flash duration for IR thermography, includes generating an initial control signal T0, a lamp control signal T1, and a control signal T2. The method further includes activating a quenching means in response to initial control signal T0, to allow current I to flow to a lamp, activating the lamp in response to lamp trigger signal T1, and turning off the quenching means in response to control signal T2 to cut off the current I to the lamp.

A pulsed thermography defect detection apparatus including active and passive infrared (IR) thermography for non-destructive testing (NDT) of powdermetallic (P / M) components for on-line and off-line inspection.

Methodology, systems, and apparatus for remote sensing as by detection and mapping of subsurface artifacts including clandestine tunnels and other subterranean facilities that may carry enemy soldiers, terrorists, weapons, munitions and explosives and other material of war or terrorism by use of visual and thermal imagery, specifically including the use of infrared (IR) thermography and related analysis, including visual imagery and its analysis including correlation between IR thermography data, visual data and other information which can be taken into consideration in relation to IR thermography data and visual data. Various types of data enhancements may be used to assist in target detection.

An infrared measurement system and method including taking multiple time lapse infrared images and visual images of a large-scale object over an extended period of time and analyzing such in order to better measure internal defects are described. Data collected over extended intervals of time are processed to provide measurements which are not affected by ambient conditions and the material properties of the object. The system may include infrared camera(s), visual (video) camera(s), external sensor(s), and an embedded computer.

A process and apparatus for testing material libraries, in particular catalysts, by means of coupled use of at least two analytical methods, preferably IR thermography and mass spectrometry. Owing to the selected arrangement, the disadvantages of the two previously known individual methods are compensated for: the subsequent selectivity determination for selected sections by means of mass spectrometry invalidates the argument against IR thermography, of only being able to determine activities; the rapid integrated determination of potentially “good” materials via IR thermography prevents an excessive loss of time by needing to test all materials of a library successively with the mass spectrometer. The reactor design permits, firstly, the integral recording of the entire reactor through a window which is transparent for the corresponding method and, secondly, permits the simultaneous, automated application of a second analytical method (for example mass spectrometry) to selected materials of a material library, which have been rated as active by the optical method. In the case described, the optical method provides information on the material activity for a set problem, and the second analytical method determines the selectivity of the materials.

Embodiments relate to use of microwave heating and infrared thermography for assessing perfusion. The system includes a microwave source, an antenna, and a radiometer. The microwave source generates microwave radiation at a frequency that is tuned to or near a resonance frequency by the antenna to output a microwave beam. The microwave beam is caused to be incident upon tissue and is converted to heat. The heated tissue emits infrared radiation that is monitored by the radiometer. The system allows for a low-cost, efficient, and non-invasive means to assess blood perfusion without radiofrequency interference. Use of infrared thermography is accomplished by the formation of the hole in the antenna structure. Use of an array of such antennas allows the measurement of perfusion for multiple points across a region of the body. The efficiency of the system is aided by adjusting the average microwave power by means of pulse width modulation.

The present invention is related to the use of thermal means for analyzing materials and specifically provides a system for detecting concrete by means of infrared thermography that comprises: an information storage memory; and a processor operatively connected to said memory; wherein said processor is configured to: store a plurality of infrared thermography images in said memory; obtain, for each pixel of said plurality of images, a temperature profile as a function of time and a plurality of curves of temperature as a function of time, each of said temperature curves fitting a corresponding temperature profile as a function of time; determine an indicating value from each of said curves of temperature as function of time; and define that a pixel corresponds to concrete when said indicating value corresponding to said pixel is greater that a threshold value; and a method for detecting concrete by means of infrared thermography.

The present invention relates to a method for characterizing a sample using a set of spectral images of the sample to be characterized, which have been previously acquired, in particular by infrared thermography or spectral imaging, and to at least one neural network, the method comprising the steps of: generating at least one volume of values of a parameter observed from said spectral images fora plurality of coordinates of the pixels of the images and a plurality of acquisitions, extracting at least one set of input data from said data volume, said input data corresponding to the values ofthe observed parameter for a pixel of the same coordinates according to different acquisitions, wherein at least one transformation function has been applied to said values, training said at least oneneural network using the input data to extract at least one characteristic of the sample to be characterized.

Intraoperative functional mapping using an intraoperative thermal imaging system is described. The system enables higher resolution images, faster acquisition speeds, and is non-invasive. The high resolution functional maps can provide physiologic information, prognostic information, and functional network structures to a neurosurgeon in a time efficient manner.

The invention is a method to optimize solar photovoltaic power plant repowering by making use of the smart predictive and preventive maintenance which detects failures in modules or in cells within modules, i.e., aerial inspections by infrared thermography and / or electroluminescence. In the method object of the invention, the detected failed modules are separated in different types of failures: A—irreversible; B—reversible and C—partly reusable. Repowering consists on substituting modules of type A for new, more powerful ones, and re-group them series-connected within the same strings (1). Modules with type B failures are repaired and installed back in their original place, and modules C are either re-grouped in series-strings, or substituted by new, more powerful modules, also series connected in strings (1).

The invention discloses a microwave continuous frequency modulation synergistic biomass directional depolymerization device and a use method thereof, and belongs to the technical field of biomass resource utilization. The device comprises a microwave continuous frequency modulation power supply, a microwave resonant cavity, a quartz tube reactor and a product treatment device, the microwave resonant cavity is provided with a microwave feed port, and the microwave continuous frequency modulation power supply is connected with the microwave feed port; the quartz tube reactor is connected with aninert gas source, a biomass feeding hopper is connected to the quartz tube reactor, a catalyst filling screen shock insulator is arranged in the middle of the quartz tube reactor, an infrared thermalimager is arranged above the quartz tube reactor, and an infrared thermometer is arranged at the catalyst filling screen shock insulator; the product treatment device comprises a condensation systemand a gas collection bag, the condensation system is arranged at the outlet of the quartz tube reactor, and the gas collection bag is arranged at the outlet of the condensation system. By matching themicrowave emission frequency with the three components of biomass and the intrinsic resonance frequency of a catalyst, the purposes of reducing the cracking activation energy of the biomass and realizing directional depolymerization are achieved.

The invention belongs to the technical field of medical diagnosis, and particularly relates to a double-checking comprehensive diagnostic apparatus utilizing infrared thermography and guide pressure-sensitive palpation and a detection method utilizing the diagnostic apparatus. The double-check comprehensive diagnostic apparatus comprises a working platform, an infrared thermography acquisition device, a pressure-sensitive detector, a computer and an image display are arranged on the working platform, the infrared thermography acquisition device is used for general check-up, the pressure-sensitive detector is used for performing accurate checking to find out whether or not neoplasms or abnormal deformations are formed in the body locally, and the computer and the image display are connected with the infrared thermography acquisition device and the pressure-sensitive detector which are connected with the computer through a data interface. The diagnostic apparatus makes full use of advantages of infrared thermography checking and pressure-sensitive palpation checking technologies by originally combining infrared thermography checking and pressure-sensitive palpation checking together, and functional and structural image results can be obtained, so that evidence warning and diagnosis are made for diseases and particularly for physical examination and asymptomatic patients quickly and effectively, and the patients can be timely treated in the early stages of the diseases. Besides, by the diagnostic apparatus, medical cost is lowered, and misdiagnosis rate, rate of missed diagnosis and death rate of the diseases are lowered greatly.

The invention discloses a head and face thermal field distribution algorithm-based infrared thermograph partitioning method and device. The infrared thermograph partitioning method comprises the following steps: (1) partition standard establishment: according to the requirements of medical research and clinical diagnosis, multi-division partitioning is conducted on an infrared thermograph I from the perspective of medicine, and each partition includes a contour line, a partition line and geometric parameters of a location reference point; (2) graph outline extraction: a human body outline is extracted from the infrared thermograph I, and vectorizing is performed; (3) location mark extraction: feature points in the graph and the outline are extracted; (4) graph registration: a standard partition map is called according to the position code of the graph, and registration is performed on the infrared thermograph I and the standard partition map; and (5) partitioning realization: partitioning of the human body thermograph is realized. The head and face thermal field distribution algorithm-based infrared thermography device can obtain accurate and effective human body infrared thermograph to detect an infected person, and help epidemic outbreak restrained.