9 results about "Monochromatic radiation" patented technology

The invention discloses a section temperature and non-gray absorption coefficient reconstruction method based on multi-camera spectral imaging. The method comprises the following steps: measuring flame monochromatic radiation intensity under multiple wavelengths by using multiple multi-spectral cameras; setting an initial absorption coefficient, and calculating a DRESOR coefficient matrix under each wavelength through a DRESOR method; the DRESOR coefficient matrix and a modified Tikhonov regularization method are combined to solve medium radiation source item distribution, an absorption coefficient is updated through a Newton iteration method, and medium radiation source item distribution under multiple wavelengths is output; simultaneously reconstructing temperature and absorption coefficient distribution from a radiation source item by using an L-M polynomial fitting method; and if the relative error minimization condition is met or the maximum number of iterations is reached, outputting a final flame section temperature and non-ash absorption coefficient distribution result. By means of the scheme, high-precision flame section temperature and absorption coefficient distribution can be obtained based on multispectral image information, the result is reliable, and precision is high.

The facility for detecting at least one characteristic parameter of a medium (M), has A DEVICE (3) illuminating the medium (M) with a visible polychromatic light, a device (4) exciting the medium (M) with a visible-light or infrared monochromatic radiation, a first device (5) collecting and conveying at least a first electromagnetic radiation emitted by the medium (M), a second device (6) collecting and conveying at least a second electromagnetic radiation emitted by the medium (M), at least one visible-band spectrometer (7) obtaining at least one visible-band spectrum of the medium (M) from the at least first electromagnetic radiation, at least one Raman spectrometer (8) obtaining at least one Raman spectrum of the medium (M) from the at least second electromagnetic radiation, and a device (9) detecting the at least one characteristic parameter from the at least one visible-band spectrum and the at least one Raman spectrum.

This invention relates to the field of gas radiation calculation technology, providing a method and system for calculating gas radiation during methanol-coal blending. The method involves obtaining the monochromatic radiation absorption coefficients of each radiating gas component under basic operating parameters during the blending process, then using Planck's law to calculate the total emissivity of the mixed gas under different basic operating parameters during blending, establishing a benchmark database of gas radiation characteristics in methanol-coal blending; fitting the parameters of the mixed gas emissivity calculation model using the benchmark database; and calculating the gas radiation characteristics under any methanol-coal blending condition using a mixed gas emissivity calculation model with defined parameters, based on actual combustion conditions. This improves the accuracy of gas radiation characteristic calculation during blending and provides reliable theoretical support for the optimized design, operating parameter control, and energy saving and carbon reduction of methanol-coal blending systems.

The present disclosure provides a plate (1) comprising a functional material (2) to be deposited onto a target surface (51) using monochromatic photon radiation (R3) having a wavelength (λ R3 ). The plate comprises a substrate (10) having a first surface (11) directed towards the target surface and a second surface (12) receiving the monochromatic photon radiation. The first surface (11) is patterned to have one or more recessed regions (111) which have a dielectric coating (4) and are filled with the functional material. The dielectric coating (4) comprises a series of dielectric coating sub-layers (41, 42, 43) with alternating refractive indices. The dielectric coating (4) has a relatively high reflectivity for the monochromatic radiation (R3) incident perpendicular to the dielectric coating (4) compared to the reflectivity for the monochromatic radiation (R3) incident at an angle of 45 degrees to the dielectric coating (4). Thereby, shear forces are reduced without requiring high alignment accuracy. The present application also provides a deposition apparatus comprising the plate and a method involving the plate.

Embodiments of the invention are directed to an optoelectronic device for detection and identification of individual water droplets, ice crystals, dust particles and volcanic ash particles, the device comprising a source of ultraviolet collimated monochromatic radiation that illuminates an area of air external to the aircraft through which freely pass individual atmospheric particles to create an illuminated sample volume of air; an optical surveillance system for monitoring the clarity of light transmission through the light transmissive window to indicate a need for preventive maintenance; a first optical detection system that is constructed and arranged to collect light scattered from individual particles over an explicit angle ranging from 137° to 173° that defines the illuminated sample volume for measurement of S and P components of return scattered light from the sample volume to photodetectors that provide signals representative of intensity and change in polarization state caused by the interaction of particles with the incident illumination in the sample volume; a second optical detection system for selectively detecting fluorescence emanating from individual ash particles over an explicit angle ranging from 137° to 173° that defines the illuminated sample volume for measurement of fluoresence from the sample volume to a photodetector that provide a signal representative of intensity caused by the interaction of particles with the incident illumination in the sample volume; a signal processor that is constructed and arranged to condition the signals from the photodetectors by removing electronic noise, restoring baseline shifts and analyzing the pulse shapes to provide processed signals; a signal analyzer configured to operate upon the processed signals for extraction of data representing maximum amplitude, width, rise time and fall time of individual pulses in the S and P components, and the magnitude of the fluorescence signal which correlates to the size and / or composition of ash particles present; an information synthesizer that receives the data and produces analytical results allocated to particles by particle type including equivalent optical diameter (EOD), number and mass size distributions, and number and mass concentrations, the particle type being selected as at least one member among the group consisting of individual water droplets, ice crystals, dust particles and volcanic ash particles; and a report generator that creates an information packet utilizing information from the information synthesizer to assist in decision making related to hazard avoidance for aircraft flight, the optoelectronic system being adapted for mounting and operation on an aircraft.

The present invention relates to a method for calculating three-dimensional cloud layer radiation transmission based on deep learning. The method is based on a convolutional neural network and cloud-containing atmospheric scene attributes. Through a three-dimensional cloud layer monochromatic radiation transmission rapid calculation model, the efficiency and accuracy of three-dimensional cloud layer radiation transmission calculation are improved. The present invention is based on the fact that the scattering in the three-dimensional cloud layer area in actual engineering is complex, and the cloud layer radiation transmission calculation is difficult to meet the characteristics of speed and accuracy at the same time. The method selects appropriate cloud-containing atmospheric scene attributes according to the radiation transmission equation and arranges them in order as the input layer, establishes targeted convolution kernels and convolution strategies, uses pooling and upsampling operations to realize the merging and splitting of cloud body units, and introduces a sub-pixel convolution module for optimization. Combined with the log method, a reasonable loss function is constructed to further improve the accuracy of the model, so as to achieve the purpose of rapid calculation of three-dimensional cloud layer radiation transmission. Experiments show that the present invention can effectively improve the accuracy and efficiency of three-dimensional cloud layer radiation transmission calculation.

The invention discloses a high-temperature melt temperature monitoring method and device, a storage medium and a system, relates to the technical field of smelting process control, and mainly aims at solving the problems that existing melt temperature monitoring is low in accuracy, contact type temperature measurement is delayed, and a sensor is prone to corrosion. The method mainly comprises the following steps: acquiring a target monitoring image of a to-be-monitored high-temperature melt acquired by visible light image acquisition equipment; taking a to-be-monitored high-temperature melt as an identification object, and performing target identification on the target monitoring image to obtain a high-temperature melt area image; converting the pixel value of each pixel in the high-temperature melt region image into monochromatic radiation intensity based on a predetermined black body calibration coefficient; and according to the monochromatic radiation intensity, algorithm optimization is carried out on the basis of a two-color temperature measurement principle and on the basis of field conditions, so that temperature distribution data of the high-temperature melt region are calculated. The device is mainly used for monitoring the temperature of high-temperature melt.

A plate including functional material to be deposited onto a target surface using monochromatic radiation having a wavelength is described. The plate further includes a substrate with a first surface directed towards the target surface and with a second surface to receive the monochromatic radiation. The first surface is patterned with recessed areas that have a dielectric coating and that are filled with the functional material. The dielectric coating includes a sequence of dielectric coating layers alternating in refractive index. The dielectric coating therewith has a relatively high reflectivity for said monochromatic radiation incident perpendicular to the dielectric coating in comparison to a reflectivity for said monochromatic radiation incident at an angle of 45 degrees to the dielectric coating. As such shear forces are mitigated without requiring a high alignment accuracy. The present application further describes a deposition device including the plate and a method involving the plate.

The invention provides a method for enhancement of a signal in 5 acoustic assisted AFM imaging of a sample. The method includes determining a resonance frequency of a first oscillator, generating an acoustic signal near to or at the resonance frequency of the first oscillator through an acoustic wave generator, oscillating a second oscillator having an AFM probe 10 tip in contact with a sample with the generated acoustic signal and measuring the reflected signal through a monochromatic source of radiation incident on the AFM probe tip. The enhancement in the signal is due to the amplification by the resonance of the first oscillator. The enhanced signal enables 15 obtaining a plurality of features of the sample including surface topography, subsurface features, subsurface defects and anomalies in an acoustic assisted AFM image.