14 results about "Radiometric measurement" patented technology

Disclosed are a system and method for wired / wireless-online / offline communication-based continuous, real-time proportional and radiometric measurement, processing, and monitoring of the output of UV sources which generate UV radiation that can be used in water disinfection, surface disinfection, air, and room disinfection processes and for non-disinfection purposes. The system and method are provided to measure and monitor the UV output of the UV sources or in the environment continuously in real-time through externally placed sensors. In the system and method, data from the sensors is processed in a microprocessor-based electronic module, and the information is transmitted to an online / offline interface accessible to the end-user via wired / wireless communication.

This invention relates to the field of radiation measurement technology, specifically to an authentication method for encrypted radiation measurement. It addresses the problem that existing technologies lack mechanisms to effectively shield and minimize the disclosure of sensitive information while maintaining identification efficiency, making them unsuitable for application scenarios where privacy protection demands are increasingly prominent. The method includes obtaining irradiation image data of a reference item and a test item, scaling their sizes to N×N, and denoting them as D₁ and D₂ respectively; introducing a key matrix λ; obtaining encryption matrices α₁ and α₂ through matrix multiplication of λ with D₁ and D₂ respectively; obtaining an absolute difference matrix β; obtaining a hash matrix σ; when β(i,j)>μ(i,j), setting σ(i,j) to 1, indicating that at this position, the difference between the reference item and the test item has exceeded the maximum difference, and the difference index increases by 1; when β(i,j)≤μ(i,j), setting σ(i,j) to 0, indicating that there is no difference between the two items at this position; scrambling and reducing the dimension of the hash matrix σ to obtain a hash sequence denoted as F, and using the elements of the hash sequence and H as the final difference index to accurately determine the identity or legitimacy of the test item.

Radiometric limit switch, with - a spotlight (5), ◯ sends radiometric radiation along a radiation path running at the height of the limit level to be monitored, or which is in a free state when the limit level has been undershot, and or which is in a state covered by a medium when the limit level is exceeded, - a detector (7) inserted at the end of the beam path, which is designed to measure discrete radiation intensities (I) arriving at it, which depend on the state of the radiation path, wherein a statistical distribution of the radiation intensities (I) in the free and in the covered state is given by two separate Poisson distributions, - a measuring instrument electronics (15) connected to the detector (7), which ◯ an interval (T) starts in which a successive distribution (V(T)) of the measured radiation intensities (I) is recorded, o the distribution (V(T)) is continuously or at predetermined time intervals examined to see if it contains two separate Poisson distributions, o the interval (T) ends after two separate Poisson distributions have been identified in the distribution (V(T)) recorded up to that point, o based on the positions of the two Poisson distributions identified in the distribution (V(T)) within the distribution (V(T)) an upper threshold (S max ) and / or a lower threshold (S min ) for the radiation intensity (I), and o those in case of exceeding or falling below the threshold value (S min , S max ) detects a change of state to the free or covered state by measuring the radiation intensity (I) following the interval (T).

The present invention relates to a three-dimensional radioactivity measurement and visualization method based on shape recognition of equipment or structures to be decommissioned in nuclear-related facilities. To this end, the present invention comprises: (a) a three-dimensional modeling step using a three-dimensional scanner for equipment or structures to be decommissioned within nuclear-related facilities; (b) an optimization and material implementation step based on data meshing and reverse engineering for 3D modeling; (c) a three-dimensional modeling lattice structure-based characteristic information and measurement information storage database (DB) system construction step; (d) a three-dimensional modeling lattice structure-based physical characteristic information and major nuclides' unique characteristic information database (DB) storage step; (e) a measurement, correction, and storage step for the radioactivity of a measurement target using a radioactivity measurement apparatus linked to a three-dimensional scanning technology; and (f) a step of visualization according to radioactive waste level standards based on radioactivity measurement information. The purpose of the present invention configured as described above is to: provide an efficient and more accurate radioactivity measurement method by using a radioactivity measurement technology linked to a three-dimensional scanning technology, for the purpose of evaluating radiological characteristics required when establishing a decommissioning strategy and plan, such as a decommissioning method, decommissioning schedule, and decommissioning cost calculation for radioactive contaminated equipment or structures during decommissioning in nuclear-related facilities; enable the improvement of safety and work efficiency of a radiation worker through a series of automated processes of remote control, radioactivity measurement, and analysis; and enable the provision of efficient, safe, and more accurate radiological characteristic information with a system configuration that provides visualization information for each radioactive waste level by using a database system for storing and managing radioactivity measurement information based on a three-dimensional modeling lattice structure for a radioactivity measurement target.

Radiometric systems may comprise a radiometer, an antenna and a processor communicatively coupled together. The processor may provide a contact-focused output based on filtering or other processing of a raw radiometric output signal. The contact-focused output may facilitate determination of whether contact has been achieved and / or assessment of contact. A miniaturized reflectometer may be configured to determine an amount of reflected power from the antenna. The processor may be configured to determine a reflection coefficient of the reflected power determined by the reflectometer and to identify tissue type based on the reflection coefficient. Systems and methods for facilitating deeper temperature measurements of a radiometer are described.

The invention relates to a radiometry measuring device (100) comprising: - a laser source (110) adapted to produce a laser beam (120), - a projection unit (130) adapted to illuminate simultaneously at least two regions (11) of a sample (1) with the laser beam, the projection unit comprising a shaping optical unit (132) adapted to, before the laser beam illuminates the sample, increase a divergence of the laser beam and modify an intensity profile of the laser beam, - a photothermal detection device (150) comprising at least two photosensitive elements (152), each photosensitive element being associated with one of the at least two regions of the sample and being adapted to detect a heat flow (140) radiated by said region, heated by the laser beam, and to deliver a measuring signal (S2) representative of said heat flow, - a processing unit (160) configured to determine, for each photosensitive element, a property of its associated region of the sample based on the measuring signal delivered by said photosensitive element.

Disclosed are a system and method for wired / wireless - online / offline communication-based continuous, real-time proportional and radiometric measurement, processing, and monitoring of the output of UV sources which generate UV radiation that can be used in water disinfection, surface disinfection, air, and room disinfection processes and for non-disinfection purposes. The system and method are provided to measure and monitor the UV output of the UV sources or in the environment continuously in real-time through externally placed sensors. In the system and method, data from the sensors is processed in a microprocessor-based electronic module, and the information is transmitted to an online / offline interface accessible to the end-user via wired / wireless communication.

A constructively simplified detector for a radiometric measuring system, wherein the measuring system serves for determining density or fill level of a fill substance in a container, includes: a scintillator; a photomultiplier, which is optically connected with the scintillator such that it generates an electrical evaluation signal as a function of radioactive radiation intensity entering the scintillator; and an evaluation unit of the detector connected to the photomultiplier, which determines density or fill level of the fill substance based on the evaluation signal. The detector is distinguished by an optically and magnetically shielding housing, which shields at least the scintillator and the photomultiplier. As a result, a separate, magnetic shielding of the photomultiplier is unnecessary. In this way, the number of components and, thus, effort to produce the detector are reduced.

The invention concerns a method for calibrating a thermal satellite used to measure land surface temperature (LST). Based on real-time infrared image data, a preliminary LST product is calculated. For each location point, a reference surface temperature from a weather model is retrieved. A radiance measurement offset is then determined based on the reference temperature. Using this offset, the satellite's radiance measurements are corrected, and a calibrated LST product is generated. The method allows calibration to begin as soon as infrared data is sensed, enabling real-time LST measurement with real-time calibration. This supports dynamic in-orbit calibration throughout the satellite's orbit and improves the reliability and accuracy of LST measurements.

Disclosed are a system and method for wired / wireless - online / offline communication-based continuous, real-time proportional and radiometric measurement, processing, and monitoring of the output of UV sources which generate UV radiation that can be used in water disinfection, surface disinfection, air, and room disinfection processes and for non-disinfection purposes. The system and method are provided to measure and monitor the UV output of the UV sources or in the environment continuously in real-time through externally placed sensors. In the system and method, data from the sensors is processed in a microprocessor-based electronic module, and the information is transmitted to an online / offline interface accessible to the end-user via wired / wireless communication.

This application discloses a method, apparatus, electronic device, and storage medium for panoramic stitching of infrared data, relating to the field of infrared data stitching technology. The method includes: acquiring an original data matrix and a previous stitched data matrix; performing kernel mapping processing on the radiometric measurements in the matrices using kernel functions to obtain an original kernel feature matrix and a previous stitched kernel feature matrix; constructing a radial attenuation model centered on the optical axis of the infrared detector for radiometric consistency correction to obtain an original correction matrix and a previous stitched correction matrix; determining a fusion weight matrix based on the kernel feature similarity at each pixel position in the spatially overlapping region of the original correction matrix and the previous stitched correction matrix; and performing pixel-by-pixel weighted fusion of the data in the spatially overlapping region according to the fusion weight matrix, and stitching it with pixels in the non-overlapping region to obtain the current stitched data matrix for the current round. The above technical solution improves the accuracy and overall consistency of infrared panoramic data fusion.

Systems and methods for ablating target tissue, measuring parameters during ablation such as temperature of the target tissue, and predicting volume of the ablation based on the measured parameters are provided. The system may include a switching antenna for both heating of target tissue and radiometry to monitor the temperature of the heated tissue, and a processor for calculating the temperature of the target tissue, segmenting medical images, and predicting volume of the ablation based on radiometric signals indicative of the target tissue temperature. The predicted ablation volume may be adapted to account for tissue boundaries and anatomical structures. The processor further may determine properties of the target tissue such as tissue type.

The utility model belongs to the remote sensing measurement and water environment monitoring technical field discloses a kind of shipborne water area spectral radiometric equipment, including controller, measuring mechanism and with the positioning orientation mechanism and stabilizing platform of controller connection, the stabilizing platform is used to realize the attitude stability of measuring mechanism;The stabilizing platform includes three rotatable connection drive shaft assemblies, and three drive shaft assemblies are heading shaft assembly, pitch shaft assembly and cross roll shaft assembly respectively, each described drive shaft assembly includes driving element and joint arm driven by the driving element, the joint arm can be executed relative rotation under the driving of the driving element, and the measuring mechanism is supported by the joint arm of the heading shaft assembly, the controller is connected with the driving element of the cross roll shaft assembly;The positioning orientation mechanism is used to determine the included angle between the direction of heading shaft assembly and the earth north direction.

Device for detecting foreign bodies (21) in a mat (5) scattered on a conveying device (4) during the production of a material sheet, wherein the mat (5) consists at least partially of fibers or chips and binders which are pressed together under increased temperature, wherein at least one first sensor device (6) operating with electromagnetic or ultrasonic waves or with magnetic fields or with radiometry is provided, which is directed towards one or more spatial measuring areas (22) of the mat in order to detect foreign bodies (10), and at least a second sensor device (7) is provided which is also aligned to the measuring ranges (22), and wherein the first sensor device (6) is suitable for performing material detection of the foreign body (10), and the second sensor device (7) is suitable for determining at least one foreign body dimension, characterized by the fact that which at least one first sensor device (6) and at least one second sensor device (7) use different physical operating methods, and that an evaluation device (15) is provided which is capable of performing a sensor fusion of the at least one first sensor device (6) and the least one second sensor device (7), wherein, depending on the result of the sensor fusion, a foreign body ejection device (11) can be activated in the evaluation device (15).