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115 results about "Water vapor absorption" patented technology
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Absorption of water vapour from unsaturated air into hygroscopic fluid produced by the salivary glands permit the tick to remain hydrated and viable during the many months between blood-meals. When feeding, the tick is able to return about 70% of the fluid and ion content of the blood-meal into the host by salivation into...
Organic light emiting device and method of manufacturing the same
InactiveCN1992371ASolution to short lifeImprove transmittanceOther chemical processesSemiconductor/solid-state device detailsWater vapor absorptionTransmission rate
Disclosed is an organic light emitting device which includes a substrate; an encapsulation substrate, an organic light emitting unit interposed between the substrate and the encapsulation substrate. A water vapor absorption material-containing transparent sealant layer covers the organic light emitting unit. The sealant layer includes a transparent sealant having a water vapor transmission rate (WVTR) of about 20 g / m 2 day or less and a water vapor absorption material having an average particle size of about 100 nm or less.
Owner:SAMSUNG DISPLAY CO LTD
Inversion method of micro-pulse differential absorption lidar water vapor spatial and temporal distribution
ActiveCN103293117AReduce mistakesLow costColor/spectral properties measurementsInversion methodsWater vapor absorption
The invention discloses an inversion method of micro-pulse differential absorption lidar water vapor spatial and temporal distribution. The inversion method comprises wavelength selection of water vapor detection, calculation and correction of absorption cross sections of water vapor absorption wavelengths and non-absorption wavelengths, and inversion and calibration of water vapor concentrations. An automatic continuous detection device of the micro-pulse differential absorption lidar water vapor spatial and temporal distribution is employed to obtain characteristic backward scattering signals of water vapor absorption in specific spectral lines, the backward scattering signals are subjected to inversion and calibration by a computer utilizing a differential absorption spectrum analysis method, and high-time-resolution, high-spatial-resolution and high-precision water vapor stereo distribution data is obtained.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Gas measuring apparatus and gas measuring method
InactiveUS20100018289A1Interferometric spectrometrySensing radiation from gases/flamesRadianceLength wave
A gas measuring apparatus includes: an infrared detecting section that receives an infrared ray from a measurement area and outputs infrared spectrum data relating to the infrared ray; a variation detecting section that detects, by using the infrared spectrum data, a variation in intensity of the infrared ray, which is caused in the infrared ray that radiates from the measurement area and which is caused by a measuring object gas in the measurement area; a converting section that converts the infrared spectrum data to radiance temperature spectrum data which represent wavelengths in an infrared region and radiance temperatures at each wavelength; a background temperature detecting section that detects, as background temperature of the measuring object gas, a maximum radiance temperature from among radiance temperatures represented by the radiance temperature spectrum data; a gas temperature detecting section that detects the temperature of the measuring object gas by using a radiance temperature in a wavelength band included in the water vapor absorption band in the infrared region from among the radiance temperatures represented by the radiance temperature spectrum data; and a computing section that computes surface density of the measuring object gas on the basis of the variation in intensity of the infrared ray, the background temperature of the measuring object gas, and the temperature of the measuring object gas.
Owner:NEC CORP
Room temperature crosslinking, one component silicone rubber formulation with hydrophobic silica
InactiveUS6956080B2Improve the level ofHigh whitenessPigmenting treatmentOther chemical processesPolystyreneHydrophobic silica
A room temperature crosslinking, one component (RTV 1C) silicone rubber formulation with hydrophobic, silica featuring extremely low water absorption, a high level of whiteness, and fine-tunable, storage-stable rheological properties with a high reinforcing action in the silicone rubber vulcanizate contains A) from 0.5 to 60% by weight of a hydrophobic silica having the following properties: a carbon content of >3.1%; a methanol wettability of >60%; a reflectance of >94%; a BET / CTAB ratio of from >1 to <3; a DBP absorption of <230 g / 100 g; a BET surface area of from 50 to 110 m2 / g; a CTAB surface area of >30 m2 / g; a water vapor absorption at 30° C. at an ambient humidity of 30 of <1.3; a water vapor absorption at 30° C. at an ambient humidity of 70 of <1.7; and B) 40-99.5% by weight of an organopolysiloxane of the formulaZnSiR3-n—O—[SiR2O]x—SiR3-n—Z′nwherein each R represents independently alkyl, acetoxy, oxime, alkoxy, amido, aryl or alkenyl radicals, each having from 1 to 50 carbon atoms, each unsubstituted or substituted identically or differently by O, S, F, Cl, Br or I; or R represents independently polystyrene, polyvinyl acetate, polyacrylate, polymethacrylate, or polyacrylonitrile radicals, each having 50-10 000 repeating units; wherein each Z represents independently OH, Cl, Br, acetoxy, amino, amido, amineoxy, oxime, alkoxy, alkenyloxy, acyloxy or phosphate radicals, wherein said acetoxy, amino, amido, amineoxy, oxime, alkoxy, alkenyloxy and acyloxy radicals each have up to 20 carbon atoms; wherein each Z′ represents independently oxime, alkoxy, amido or acetoxy radicals; wherein n is 1-3; and wherein x is 100-15 000.
Owner:EVONIK DEGUSSA GMBH
Method for simultaneous measurement of high-temperature gas two-dimensional transient temperature field and concentration field
ActiveCN105548072AFast scanningAccurate detectionThermometers using physical/chemical changesColor/spectral properties measurementsLaser arrayWavelength modulation
The invention discloses a method combining hyper-spectrum and wavelength modulation for simultaneous measurement of high-temperature gas two-dimensional transient temperature field and concentration field. The method includes: arranging a laser array in a to-be-measured high-temperature area, and conducting hyperspectral scanning on the to-be-measured area to obtain water vapor absorption spectral line information, and carrying out demodulation with a digital phase lock technology to obtain each harmonic signal, then conducting background deduction first harmonic normalization processing, extracting the maximum amplitude value of the signal to measure regional temperature field and water vapor concentration field, and during measuring, conducting grid discretization treatment on the to-be-measured area, arranging laser beam at each row and each column of the grid to conduct broad spectrum scanning on the characteristic spectral line of the to-be-measured gas under a wavelength modulation mode, and using intelligent optimization algorithm to realize inversion of the temperature field and gas concentration field. The measurement method provided by the invention combines hyper-spectrum and wavelength modulation spectroscopy technologies, and is especially suitable for monitoring of high-temperature gas two-dimensional temperature field and concentration field on harsh industrial sites.
Owner:SOUTHEAST UNIV
System and method for treating hydrogen to be stored in a salt cavern and supplying therefrom
ActiveUS20160060038A1Suppresses intrusion of and moreHigh purityMining devicesHydrogen separation at low temperatureStable stateHydrogen
A novel system and method for storing hydrogen in a salt cavern and supplying therefrom is provided. Hydrogen product withdrawn from a hydrogen pipeline may be chilled prior to being introduced into a cavern in order to cool at least a portion of the walls of the salt cavern so that one or more layers of the localized portion of the walls attains a stabilized state whereby contaminant release from the walls is suppressed. The present invention anticipates and strategically plans for contaminant intrusion form a salt cavern in order to reduce the degree of contaminant intrusion from a salt cavern while also allowing the stored hydrogen to have more absorption capacity for water vapor by virtue of entering the salt cavern in a sufficiently drier state. Alternatively, or in addition thereto, a crude hydrogen stream may be withdrawn from the cavern and chilled prior to introducing to the hydrogen pipeline.
Owner:PRAXAIR TECH INC
Correcting noncontact infrared thermometer data by removing contamination of the intervening atmosphere
InactiveUS20120310578A1Improve accuracyReduce hardware costsThermometer detailsRadiation pyrometryAtmospheric temperaturePressure measurement
Apparatus and methods are disclosed for enhancing data accuracy of a noncontact infrared thermometer. One method includes determining dry atmospheric constituency and water vapor absorption coefficients across the infrared thermometers spectral bandpass and implementing the coefficients in processing with site-based atmospheric temperature and water vapor density profile and pressure measurements to provide corrected target temperature data compensating for contamination in said raw data due to said intervening atmosphere. The method is particularly well adapted for use in correcting data from less expensive but also less accurate wideband infrared thermometers.
Owner:SOLHEIM FREDERICK S
Method for conducting inland water body atmospheric correction based on oxygen and water-vapor absorption wavebands
InactiveCN103499815AHigh precisionPrevent overcorrectionRadiation pyrometryWave based measurement systemsRayleigh scatteringFull wave
The invention discloses a method for conducting inland water body atmospheric correction based on oxygen and water-vapor absorption wavebands, and relates to the technical field of remote sensing. The method comprises the steps of processing hyperspectral remote sensing image data of an inland water body, extracting a clean water body image element (dark image element), conducting the rayleigh scattering removal and atmospheric correction on the extracted dark image element, utilizing the oxygen and water-vapor absorption wavebands for combinatorially computing atmospheric correction factors on the corrected image element, conducting aerosol scattering of extrapolation full-wave bands, and utilizing the calculated aerosol scattering value for conducting the atmospheric correction on a whole-scene image. According to the method, the characteristic that the water body is low in reflectivity at the oxygen and water-vapor absorption wavebands is utilized, the water body dark image element is selected, the aerosol scattering is calculated, the phenomenon that due to the fact that in the inland water body atmospheric correction, the water body is high in turbidity, overcorrection is caused is avoided, the precision of the inland turbid water body atmospheric correction is improved, and the technical support is provided for improving the precision of remote sensing retrieval.
Owner:李云梅
Mixture component identification method based on terahertz absorption spectrum processing
ActiveCN104713845AEliminate the effects of absorptionMaterial analysis by optical meansTemplate matchingOptical measurements
The invention provides a mixture component identification method based on terahertz absorption spectrum processing, and belongs to the field of optical measurement. The method comprises the following steps: detecting components of a mixture by a terahertz absorption spectrum; firstly, obtaining a terahertz absorption spectrum of a mixture sample, deducting environment noise and background noise, and removing the effects caused by water vapor absorption changing along with the temperature; obtaining the terahertz absorption spectrum for identification, transferring a terahertz absorption spectrum database, and sequentially judging, identifying and deducting the terahertz absorption spectra of kinds of samples by template matching and absorption peak comparison methods; and judging the deducted absorption spectrum data until all components of the mixture are detected. By combination of the terahertz absorption spectrum in an experiment environment with the terahertz absorption spectrum in a conventional environment, the mixture component identification method can be applied to terahertz absorption spectrum identification in the conventional environment; and a guarantee is provided for application of a terahertz absorption spectrum identification technology.
Owner:西安应用光学研究所
Low melt viscosity polyglycolic acid, production process thereof, and use of low melt viscosity polyglycolic acid
InactiveUS20100184891A1Improve melt fluidityReduce melt viscosityGroup 5/15 element organic compoundsSpecial tyresShear ratePolyethylene glycol
A low melt viscosity polyglycolic acid having a melt viscosity of at most 100 Pa·s as measured at a temperature higher by 10° C. than the melting point of the polyglycolic acid and a shear rate of 122 sec−1, a temperature at 3%-weight loss on heating of at least 280° C. and a water content of at most 500 ppm, and being in a solid state at a temperature of 20±15° C., and a production process of the low melt viscosity polyglycolic acid including a water vapor absorption step and a heat treatment step for a high melt viscosity polyglycolic acid being in a solid state.
Owner:KUREHA KAGAKU KOGYO KK
Movable continuous solar energy device for fetching water from air
InactiveCN101187214AImprove water extraction efficiencyImprove efficiencySolar heat devicesSolar thermal energy generationWater vapor absorptionElectric energy
A continuous solar-energy air water-taking device which can be moved relates to the field of air water-taking, wherein a solar-energy battery board supplies electricity to an accumulator which supplies power to a fan blower and a freezing draught fan, the fan blower directly extracts air and blows the air into a wind pipe, air flow flows through a heat-collecting pipe and is heated, heat air flows through an air-cooled muscle sheet condensator, and water which is condensed automatically flows into a water-collecting tank under the effect of the gravity, a first water-taking is finished. Finally, air is discharged outside form an air outlet of an adsorption tank, the adsorption tank absorbs water vapor which is not condensed after the first water water-taking, the adsorption tank is exchanged with an adsorption tank in an attached cover after fully absorbing water, and the adsorption tank is heated to realize desorption, the water which is desorbed flows into the water-collecting tank, and the second water-taking is finished, and the process is conducted repeatedly. On one hand the invention can be used to reflect sunshine which is not absorbed by the solar-energy vacuum heat-collecting pipe, and further reflects the sunshine to the solar-energy vacuum heat-collecting pipe, on the other hand the invention can convert light energy into electric energy, and supplies power to the entire device, and realizes cleaning production and utilization of energy source.
Owner:JIANGSU UNIV
Measuring water vapor in hydrocarbons
InactiveCN101460829AFuel testingAbsorption/flicker/reflection spectroscopyDifferential absorptionLength wave
Low concentrations of water vapor within a background of one or more hydrocarbon gases may be detected and quantified using a differential absorption spectrometer. A dehydrated sample of the gas is used as a background sample whose absorption spectrum allows elimination of absorption features not due to water vapor in the gas. Absorption spectra may recorded using tunable diode lasers as the light source, these lasers may have a wavelength bandwidth that is narrower than the water vapor absorption feature used for the differential absorption spectral analysis.
Owner:SPECTRASENSORS INC
Humidity measuring method based on radio frequency
InactiveCN102636500AOvercome agingOvercome stabilitySensing record carriersMoisture content investigation using microwavesMicrowaveTransmitted power
The invention provides a humidity measuring method based on a radio frequency. A host processing module calculates a content of water vapor in the air according to a received radio frequency transmitting power and a received power. The humidity measuring method comprises the following steps of: firstly, determining a distance between a transmitting module and a receiving module and parameters of a water vapor absorption radio frequency signal; sending a radio frequency signal with a certain frequency to the receiving module through an antenna at a certain sending power by a radio frequency transmitting module within a short period; sending a transmitting power of the radio frequency to a host through the antenna in a microwave manner; and calculating a radio frequency power absorbed by water according to a receiving power calculated by a data processing unit in the radio frequency receiving module, so as to calculate an air humidity. The humidity measuring method provided by the invention is convenient, simple and rapid and has a wide applicable range.
Owner:湖南中大智能科技有限公司
Method and device for garbage processing water recovery and pure carbon production
ActiveCN104907311AEmission reductionEfficient use ofWaste processingSolid waste disposalRefuse collectionRefuse Disposals
The invention relates to a method and a device for garbage processing water recovery and pure carbon production. The device for garbage processing water recovery and pure carbon production comprises a garbage collection station, a garbage stacking site separator, a pulverizer, a calcium oxide dehydration purification tower, a dividing wall rotary kiln, a tar recoverer, a chemical plant, a waste heat power generation device, a condensed water recoverer, a water reclamation tank, a high temperature deliming device and a grading processing device. Garbage is separated into renewable garbage and non-renewable garbage by the separator, the renewable garbage is pulverized by the pulverizer, the pulverized garbage is sent to the dividing wall rotary kiln, low-temperature destructive distillation is carried out, carbide coke powder after destructive distillation is sent to the high temperature deliming device, and deliming is carried out. Destructive distillation tail gas is subjected to water vapor absorption by the calcium oxide dehydration purification tower, the tail gas after dehydration is sent to the chemical plant through the tar recoverer and processing is carried out. After the destructive distillation tail gas is subjected to deoiling, the product returns to a kiln chamber of the dividing wall rotary kiln, the burnt flue gas enters into the waste heat power generation device and waste heat power generation is carried out. After deliming of the high temperature deliming device, coke powder with an ash amount of less than 0.02% and byproducts of a high boiling point metal and lower boiling point metal mixture are generated.
Owner:SHIJIAZHUANG XINHUA IND FURNACE CO LTD
Measuring water vapor in hydrocarbons
Owner:SPECTRASENSORS INC
Magnetic storage device with multi-functional component for controlling chemical and water vapor therein
ActiveUS20130044391A1Increase chanceAvoid emissionsUndesired vibrations/sounds insulation/absorptionIsotope separationActivated carbonHard disc drive
Approaches for desiccant device within an enclosure protecting sensitive electronic equipment. Electronic equipment, such as a hard-disk drive (HDD), may comprise a desiccant device a desiccant device that comprises a first desiccant material, a second desiccant material, and an activated carbon layer. The first desiccant material has a relatively high rate of water vapor absorption while the second desiccant material has a relatively low rate of water vapor absorption. The activated carbon layer absorbs airborne organic airborne particles. The desiccant device may be a breather filer or may be disposed entirely within the interior of the electronic equipment, e.g., the desiccant device may be a recirculation filter.
Owner:WESTERN DIGITAL TECH INC
Organic light emitting device and method of manufacturing the same
InactiveCN103956375ASolution to short lifeImprove transmittanceElectroluminescent light sourcesSolid-state devicesOrganic light emitting deviceSealant
Owner:SAMSUNG DISPLAY CO LTD
Method and device for calibrating absolute response rate of terahertz quantum-well detector
ActiveCN103776547AImprove accuracyImprove calibration efficiencyAbsorption/flicker/reflection spectroscopyPyrometry using electric radation detectorsQuantum wellComplex calculation
The invention discloses a method and a device for calibrating an absolute response rate of a terahertz quantum-well detector. The device at least comprises a driving power supply, a single-frequency laser source, an optical lens, a terahertz array detector, a terahertz power meter, a current amplifier and an oscilloscope. The calibrating method adopts the single-frequency laser source detected by using power as a calibration light source to acquire an absolute response rate of the detector in the laser frequency; and the method uses a normalization photocurrent spectrum of the detector to further calculate and acquire the absolute response rate of the detector in any position with a detectable frequency. According to the method, the cyclic output single-frequency laser source is directly used as the calibration light source; and the terahertz array detector and the power meter are directly used for measuring and acquiring an incident power of the calibrated detector, so that the influence caused due to background light and water vapor absorption in a conventional calibration method is greatly reduced; the complex calculation of various spectrum integrations is avoided; the whole calibration process is simple; small error is introduced; and the method is wide in applicability.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Nitrogen extracting and purifying device of nitrogen isotope sample in water
InactiveCN103776674ANo cumbersome chemical treatment processAvoid fractionationPreparing sample for investigationChemical treatmentNitrite
The invention relates to a nitrogen extracting and purifying device of a nitrogen isotope sample in water. The nitrogen extracting and purifying device comprises a nitrogen bottle (1), a carbon dioxide absorption cold trap A (2), a carbon dioxide absorption cold trap B (5), a water-vapor absorption cold trap (6) and a U-shaped gas sample collector (8), which are successively connected end to end, wherein the gas outlet end of the U-shaped gas sample collector (8) is communicated with a long needle B (19) through a rubber tube, and the long needle B (19) enters below the liquid level in a gas monitoring cup B (10). The device has the advantages that a tedious chemical treatment process is avoided, and the device is time-saving and labor-saving and simple and efficient; the nitrate, nitrite and solubleness nitrogen in the water are completely converted into pure nitrous oxide gas or pure nitrogen which can be completely collected, so that the isotope fractionation is avoided; the CO2 and water-vapor can be removed, and the interference in testing is avoided; the device can be widely applied to the scientific search and production of colleges, scientific research institutions, industrial and mining enterprises, and the like.
Owner:XIHUA UNIV
Infrared spectral recognition method based on water vapor residual spectrum analysis
ActiveCN107631993AHigh precisionAvoid errorsMaterial analysis by optical meansTransmittanceAnalytical chemistry
The invention specifically relates to an infrared spectral recognition method based on water vapor residual spectrum analysis, belonging to the technical fields of spectral measurement and spectral recognition. The infrared spectral recognition method comprises the following steps: generating a pure water vapor transmittance spectrum by using a molecule transmission and absorption database and meteorological parameters; subjecting the pure water vapor transmittance spectrum and a to-be-recognized measured infrared spectrum containing the absorption characteristics of an unknown compound to fitting, and deducting water vapor absorption spectra in the spectrum of the unknown compound waveband by waveband so as to obtain a residual spectrum; and carrying out preliminary peak searching and recognition on the residual spectrum to find out a peak position corresponding to the strongest absorption value of the residual spectrum in each waveband and comparing the peak positions with the molecular absorption peak of each compound in an infrared absorption characteristic database so as to obtain a possible compound component list. According to the invention, the pure water vapor transmittance spectrum is used for deduction of the water vapor absorption spectrum in the to-be-recognized spectrum, so errors of recognition results caused by water vapor are effectively avoided, the precisionof spectral recognition is improved, and rapid recognition of unknown compound components via infrared absorption spectra can be realized.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Apparatus for simulating the perspiration of the human body and for assessing the vapor permeability and comfort of an item of clothing
InactiveUS7458288B2Vapor permeability performanceWeather/light/corrosion resistancePermeability/surface area analysisHuman bodyPerspiration
Owner:GEOX SPA
Dust removal device for mining equipment
InactiveCN110905587AImprove dust removal effectSave waterCombination devicesUsing liquid separation agentMining engineeringDust control
The invention discloses a dust removal device for mining equipment. The dust removal device comprises a first pipeline and a second pipeline, and the inner left side of the first pipeline is providedwith a suction fan; the pipe diameter of the middle part of the first pipeline is contracted to form a throat part, and the lower side of the throat part communicates with a water inlet pipe; the inner right side of the first pipeline is vertically provided with a fixing plate and a connecting shaft, and the connecting shaft is provided with a plurality of conical baffles uniformly; and the righttail end of the first pipeline communicates with the second pipeline, and the second pipeline is internally provided with an oblique plate, a filter plate and a drying plate from bottom to top in sequence. According to the dust removal device for the mining equipment, the throat part formed through pipe diameter shrinkage is arranged at the middle of the first pipeline, so water vapor is impacted;thus, dust and water drops in air are mixed, and primary dust removal is finished; the dust removal effect is good; the dust removal device is further provided with a collection box, and filtered water is reused; water resources are saved; the second pipeline is internally provided with the filter plate and the drying plate separately for secondary dust removal and water vapor absorption; and thedust removal is thorough, and no dead angle exists.
Owner:ZHUZHOU TIANQIAO SHUNCHEN COAL PREPARATION MACHINERY
Magnetic storage device with dual stage humidity control
InactiveUS20130114163A1Negatively impact reliabilityReduce negative impactGas treatmentUndesired vibrations/sounds insulation/absorptionHard disc driveHigh rate
Approaches for desiccant device having a dual stage humidity control for use within sensitive electronic equipment. Electronic equipment, such as a hard-disk drive (HDD), may comprise a desiccant device that comprises a first absorbing portion that comprises a first desiccant material and a second absorbing portion that comprises a second desiccant material. The first absorbing portion possesses a relatively rapid permeation rate for water vapor, while the second absorbing portion possesses a relatively low permeation rate for water vapor. The first desiccant material may have a relatively high rate of water vapor absorption, while the second desiccant material may have a relatively low rate of water vapor absorption. In this way, embodiments allow for the sensitive equipment to be dried out rapidly in manufacturing and yet have a slow reversible water absorption rate during operation.
Owner:WESTERN DIGITAL TECH INC
Mars atmospheric water vapor content retrieval method
InactiveCN107783134AReduce the impact of inversion accuracyImprove the ability of water vapor retrievalICT adaptationRadio wave reradiation/reflectionOriginal dataRadiance
The invention relates to a mars atmospheric water vapor content retrieval method. The mars atmospheric water vapor content retrieval method comprises the following steps of calibrating to obtain the PFS radiance brightness and the observation noise based on MEX-PFS original data; generating a mars atmospheric state vector initial value based on known mars data, and calculating a PFS simulated radiance brightness by utilizing a mars radiation transmission model, further inverting to obtain the surface temperature, the atmospheric temperature profile and the dust aerosol optical thickness of themars and enabling a cost function to be minimized; selecting a water vapor inversion section; changing the resolution of MEX-PFS data and reducing the observation noise; calculating the width broadening value of a water vapor absorption line; adopting the surface temperature, the atmospheric temperature profile and the dust aerosol optical thickness of the mars as prior atmospheric data, calculating the real water vapor content under the width broadening value condition of the water vapor absorption line. For MEX-PFS data, the water vapor content retrieval method is small in error, stable, fast and convenient.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
Method for removing envelope line of field rock mineral spectrum
InactiveCN106644946AEffective noise removalAvoid missingMaterial analysis by optical meansNODALDemarcation point
The invention belongs to the technical field of spectrum treatment and analysis and specifically discloses a method for removing an envelope line of a field rock mineral spectrum. The method comprises the following steps: 1) performing spectrum water-vapor absorption treatment on a field rock mineral spectrum data; 2) performing spectrum environmental noise treatment on the field rock mineral spectrum; 3) positioning a maximum demarcation point of the field rock mineral spectrum treated in steps 1 and 2); 4) calculating and searching envelope line nodes of a field rock mineral spectrum curve S acquired in the step 3); 5) generating an envelope line according to the envelope line nodes of the field rock mineral spectrum curve S acquired in the step 4); and 6) removing an envelope line Se of the rock mineral spectrum curve acquired in the step 5). According to the method, the phenomena of the envelope line wrapped by the spectrum curve and the leakage of the envelope line nodes can be effectively avoided.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Wide-spectrum medium short wave infrared Dewar window based on silicon substrate and preparation process
InactiveCN101907494AMeet welding requirementsReasonable technical solutionRadiation pyrometryCoatingsRefractive indexShort wave infrared
The invention discloses a wide-spectrum medium short wave infrared window for detector / Dewar packaging and welding and a preparation process. The window takes silicon as the substrate material. The edges and the side of one surface of the window are plated with gold films in certain thickness, with a nanoscale nickel-chromium layer as the bonding layer. The gold films are called metalization layer, and the edges and the side are used for detector / Dewar packaging and welding. The middle areas of the surface and the other surface are plated with wide-spectrum medium short wave infrared antireflection films with multilayer film structure and alternate high / low refractive indexes, wherein the antireflection films take ZnS and YF3 as the materials with high / low refractive indexes and the equivalent layer adopts ZnS and Si. The antireflection films are plated by such specific processes as ion source assistance, appropriate substrate temperature, etc. The average transmissivity T of the window is more than 95% in the range of 1.2-4.8mu m and the water-vapor absorption peak commonly appearing on YF3 does not appear on the window in the range of 2.7-3.0mu m. The window is stable in performance and is suitable for the medium short wave infrared detectors / Dewar of the modern multi-spectrum space remote sensing instruments.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
828nm atmospheric water vapor detection differential absorption lidar transmitter system
PendingCN110098556AImprove stabilityGood repeatabilityLaser detailsWave based measurement systemsResonant cavityAbsorption cell
The invention discloses an 828nm atmospheric water vapor detection differential absorption lidar transmitter system, which includes an 828nm continuous wave seed laser, a single-longitudinal-mode narrow-linewidth pulse Nd:YAG laser, a KTP ring cavity optical parametric oscillator, a PDH seed laser wavelength stabilization unit of a multi-channel absorption cell based on water vapor absorption, andan optical parametric oscillator resonant cavity length locking unit based on a scanning holding technology. The transmitter system can generate single-frequency laser pulse suitable for atmosphericwater vapor detection, and is the core structure of differential absorption lidar.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Movable continuous solar energy device for fetching water from air
InactiveCN100572695CImprove water extraction efficiencyImprove efficiencySolar heat devicesSolar thermal energy generationElectricityDesorption
Owner:JIANGSU UNIV
Humidity generation ice surface saturator
The invention relates to a humidity generation ice surface saturator and belongs to the technical field of metering and measurement. According to heat and mass transfer principles, a helical structure is adopted, an air flow is enabled to walk for an enough long path on a water surface or an ice surface, the length of a heat and mass transfer path of the air flow is prolonged in a limited work space, and the water absorption amount of the air flow is increased; in addition, the humidity generation ice surface saturator adopts a ventilation drainage device which blows superfluous water away from top to bottom at the front surface, and on the premise that the sufficient distilled water of the saturator is ensured and the superfluous water can be discharged, the water drops attached to the inner wall of a saturator air chamber is blown away. A Water accumulating device with a water accumulating function is arranged on a pipeline and on the bottom part of the last-level of the saturator, accumulated water is pumped out or discharged before use, and the ice blocking phenomenon is prevented. Compared with the prior art, saturate wet gas lower than 0 DEG C is generated, and saturate wet gas higher than a room temperature can also be generated, ice blocking is prevented, the operation is simple, and the saturation efficiency is high.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
Radar cross-section (RCS) estimation correction method for target based on water vapor absorption loss
The invention provides a radar cross-section (RCS) estimation correction method for a target based on water vapor absorption loss. On the premise that the detection distance and a detection radar are determined and the detection frequency is known, the RCS estimation correction method for K wave band targets and millimeter wave band targets is provided according to relevance between the water vapor absorption loss and a radar equation so as to provide reference for remote sensing and detection of the target in a water vapor absorption environment.
Owner:CHINA SHIP DEV & DESIGN CENT
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