1595 results about "Xenon lamp" patented technology

An endoscope device obtains tissue information of a desired depth near the tissue surface. A xenon lamp (11) in a light source (4) emits illumination light. A diaphragm (13) controls a quantity of the light that reaches a rotating filter. The rotating filter has an outer sector with a first filter set, and an inner sector with a second filter set. The first filter set outputs frame sequence light having overlapping spectral properties suitable for color reproduction, while the second filter set outputs narrow-band frame sequence light having discrete spectral properties enabling extraction of desired deep tissue information. A condenser lens (16) collects the frame sequence light coming through the rotating filter onto the incident face of a light guide (15). The diaphragm controls the amount of the light reaching the filter depending on which filter set is selected.

The invention discloses a multispectral-based multipoint sampling multiparameter water quality on-line analytical system, comprising an optical system, a waterway system and a detection control system, wherein the optical system is used for scanning the ultraviolet-visible light transmitted spectrum, and fluorescence and Raman emission spectra and the like of a water sample to be detected by adopting a multi-wavelength laser, a pulsed xenon lamp and a charge coupled device (CCD) spectrum detector and converting the scanned spectra into digital signals; and based on multipoint sampling design, the waterway system is used for enabling quantified sewage and clear water to enter into a sampling device through controlling the on and off of a water pump and a solenoid valve so as to realize the collection of the spectroscopic data, moreover, the waterway system has a function of automatically cleaning a sewage pipeline system; and an industrial personal computer is adopted as a core processing unit of the detection control system. The whole system can automatically and continuously operate and is suitable for online analysis.

The invention discloses non-yellowing thermoplastic polyurethane hot melt adhesive which is calculated by weight percentage; the prescription comprises the following components: 40 to 55 percent of polyester polyol, 30 to 45 percent of polyether polyol, 1 to 4 percent of chain extendor, 12 to 24 percent of aliphatic isocyanates, 0.2 to 2 percent of coupling agent, 0.5 to 4 percent of inorganic nano-sized powder, and 0.02 to 0.05 percent of catalyst which are prepared through bulk polymerization. The invention adopts aliphatic isocyanates as the raw material, thereby fundamentally solving the problem that the polyurethane hot melt adhesive on sale yellows and is aged in a short time; the prepared polyurethane hot melt adhesive does not yellow in 504 hours under the irradiation of an xenon lamp, is particularly applicable in the bonding of products with appearance in light color or in white or with quite high grade, does not contain organic solvent, has no harm to the environment and the human body when in use and belongs to environment-friendly hot melt adhesive; and in addition, the preparation method has the advantages of little equipment investment, simple process, easy operation, stable product quality and the like.

The invention belongs to the fields of environmental science and engineering, and in particular relates to a method for preparing a bismuth ferrite photocatalyst capable of efficiently degrading organic pollutants in water by utilizing photocatalysis technology. The photocatalyst bismuth ferrite is synthesized by a solvent method; and during synthesis, a molar ratio of bismuth nitrate to ferric nitrate is 12:1, a xenon lamp is taken as a light source, and the bismuth ferrite is fully mixed with neural red solutions with different concentrations to photo-catalyze and degrade the neutral red dye in aqueous solution. The invention provides a high-efficiency method for removing the neutral read dye from the water. The method can remove over 70 percent of the neutral red dye (the concentration is 10 to 30 milligrams/liter) from the water in 2 hours; moreover, the photocatalyst has the advantages of simple preparation process, large particle size and easy recycling; and the method has the advantages of easy operation, low cost, high efficiency, time conservation, and good industrial application prospect.

An electric wire and cable conductivity, tensile strength and aging comprehensive testing device comprises a testing control system, an analytical balance, an electrical bridge with a clamp, an insulation resistance tester, a tension testing machine, a high-temperature low-temperature humidity thermal cycling testing machine, an air-exchange aging testing machine, an ozone-proof aging testing machine, an xenon lamp weather-proof testing machine, a gas analysis device and a test control system. The device can test mechanical performance of an electric wire and cable, electric performance of the electric wire and cable and performance of the electric wire and cable under the influence of environment at a time, can effectively reduce work load of a test of the electric wire and cable, enables the test of the mechanical performance, the electricity performance, and the performance of the electric wire and cable under the influence of the environment to be concentrated and effective, and can synchronously test components of released gases of a cable with a sheath in the aging process.

This invention provides a solar simulator measurement method capable of high-accuracy measurements with fast-response photovoltaic devices as well as with slow-response photovoltaic devices, and a solar simulator for implementing the method. A flash having a pulse waveform with a flattened peak is generated from a xenon lamp 1. The flash is sensed by an irradiance detector 3, its irradiance measured, and the irradiance of the light source is adjusted to fall within a prescribed narrow range based on the detected irradiance value. Then, the flash with irradiance within the prescribed range irradiates photovoltaic devices 4 under measurement, and the current and the voltage output by the photovoltaic devices 4 are measured at multiple points while a load of the photovoltaic devices 4 is controlled. This process is repeated with multiple flashes to obtain an I-V curve for the photovoltaic devices.

The invention relates to a high-collimation solar simulator optical system with an auto-collimation aiming system, belonging to a solar simulator optical system in the technical field of optics design and aiming at solving the technical problem of providing a high-collimation solar simulator optical system with the auto-collimation aiming system. The high-collimation solar simulator optical system with the auto-collimation aiming system comprises a xenon lamp source, an ellipsoid condenser, a plane mirror, an optics integrator assembly, a first dispersion prism, a second dispersion prism, an emission reticle, an LED light source, an aiming reticle, an ocular lens and a collimator objective. On the basis of the traditional high-collimation solar simulator optical system, an auto-collimation aiming system is added on an optical path of the optical integrator assembly, wherein the auto-collimation optical system comprises a first dispersion prism, a second dispersion prism, an emission reticle, an LED light source, an aiming reticle and an ocular lens. The invention can ensure more accurate zero calibration so as to eliminate the man-made influence and achieve better experimental effect.

The testing device is in use for measuring photoelectric properties of photovoltaic conversion materials and parts. In the device, xenon lamp simulates sunlight source. Optical fiber (21) of guiding light beam connects grating monochromator with xenon lamp, and optical fiber (22) of guiding light beam connects grating monochromator with testing dark box, where there are photocell and sensor of photometer inside. Output end of photocell is connected to voltage/current meter. Output end of sensor of photometer is connected to photometer. Output ends of photometer and voltage/current meter through data acquisition interface is connected to computer for in site measuring luminous intensity irradiated on photocell. Sensor of photometer is placed on the position the photocell located.

The present invention discloses a reconfigurable modularized environment test box, which comprises a test box body, wherein an environment simulation function module is arranged inside the test box body and comprises a high temperature module, a low temperature module, a humidity module, an ultraviolet weathering resistance module, a xenon lamp weather resistance module, a low pressure module, an ozone aging module, a raining module, a salt mist module, a sand and dust module, and a control module. The reconfigurable modularized environment test box of the present invention has the following advantages that: the modules are subjected to combined use and the combination manner of the modules can be changed so as to achieve different environment tests, improve the adaptability of the equipment, and meet requirements of various environment tests; each module is corresponding to the one environment test, and the customer can selectively install a plurality of required environment modules, such that the single function problem of the existing environment test box is overcome; and the equipment utilization rate is high, and the environment test cost is low.

A light source device includes a xenon lamp, a rotary shutter, a main CPU for controlling drive of these components, and a sub CPU. The main CPU operates when receiving a reset cancel signal from a reset circuit. Between the sub CPU and the reset circuit, an AND circuit is provided. When the reset cancel signal from the reset circuit and a lighting completion signal indicating completion of lighting the xenon lamp are both input, the AND circuit outputs the reset cancel signal to the sub CPU. After the output of the lighting completion signal, the sub CPU operates to drive the rotary shutter. When high-frequency noise which occurs at the time of discharging the xenon lamp stops, the rotary shutter is activated and thereby generating pulses of illumination light.

The invention discloses a preparation method of an Ag/TiO2 flexible SERS substrate capable of being repeatedly utilized. A thin Ti sheet is adopted as a Ti source, a TiO2 nanobelt array with Ti as a substrate is prepared through a hydro-thermal synthesis method, an SERS substrate material of Ag/TiO2 is prepared through a continuous ion deposition method, the Ti sheet can be cut to be of any shape and size according to test requirements, the large-area SERS substrate material can be prepared according to the size of the Ti sheet, and potential industrial production prospects are achieved. In addition, the number of silver nanoparticles on the surface of an Ag/TiO2 film is controllable, the silver nanoparticles are firm and not likely to fall off, an organic tested objected adsorbed on the surface of the material can be degraded and decomposed under the irradiation of a xenon lamp light source, the function of detoxicating the SERS material is achieved, and therefore a sample can be used repeatedly and cyclically.

The invention discloses a synthetic method for a supported silver phosphate/silver catalyst. The synthetic method includes steps of weighing 1-1.2mmol of silver nitrate to prepare 10-15mmol/L of solution at first and dripping weak aqua ammonia into the solution to obtain Tollens' reagent; then weighing 20g of bentonite; adding 80-100mL of distilled water into the bentonite to immerse the bentonite for 10 hours to 12 hours so as to obtain bentonite suspension; dripping the Tollens's reagent into the bentonite suspension, stirring, ageing in water bath at the temperature ranging from 80 DEG C to 85 DEG C for 24 hours, washing by four times to five times, and adding 30-50mL of distilled water; dripping 0.01-0.1mol/L of phosphoric acid in a product, stirring for 4 hours, leading the mole ratio of the adding quantity of the phosphoric acid to the used quantity of the silver nitrate to be 1:3, ageing in water bath at the temperature ranging from 60 DEG C to 65 DEG C for 24 hours after stirring is finished, and repeatedly washing until supernate is neutral; and finally drying at the temperature of 105 DEG C, grinding, and irradiating under an xenon lamp with the power of 400-500w for 50-80 minutes so as to obtain the supported silver phosphate/silver catalyst. Utilization efficiency to natural light is increased, stability of a system is guaranteed, a nanometer laminated structure of the bentonite is utilized, accordingly, absorption ability of the catalyst and a carrier is improved, and degradation efficiency is increased.

The invention discloses a carbon dioxide reduction method which comprises the following steps: by using carbon dioxide as a raw material and a NaOH, Na2CO3 or Na2SO3 water solution with a certain concentration as a reaction solution and adding 0.2-5.0 g/L composite photocatalyst of oxide of Ti, Bi, W, V, Mo or Y, putting in an internal irradiation, external irradiation, suspension or liquid-film photocatalytic reactor, and introducing carbon dioxide at 10-60 mL/minute to carry out photocatalytic carbon dioxide reduction reaction at normal temperature for 0.5-5 hours by using a mercury lamp, xenon lamp or sunlight as a light source, thereby obtaining formic acid, methanol, methane and other carbon dioxide reduction products. The method has the advantages of simple technique and green reaction process, can catalytically convert the carbon dioxide into useful chemical products, and thus, has favorable economic benefit and environmental benefit.

The invention relates to ultraviolet ray intensity detecting method and device. The method includes the following steps: collimating ultraviolet ray containing light by two rectangular diaphragms to form one way right parallel ray and reflect to grating; the first level optical spectrum of the reflected diffracted light is from ultraviolet ray, visible light, to infrared ray; the visible light and the infrared ray are turned back by one light filtering device; the ultraviolet ray is passed through and shot to ultraviolet luminescent material to give out fluorescent light; using electro-optical signal acquisition circuit includes photo detector to detect the fluorescent light intensity; converting to ultraviolet ray intensity. The invention can be used in sun ray ultraviolet ray detecting, varieties of ultraviolet light sources such as mercury lamp, xenon lamp, and deuterium lamp, and hollow cathode lamp measuring. It has the advantages of compact design, simple using, convenient carrying, and wide detecting range.

A scanner is provided with an illumination lamp for emitting light to a first side of a document from one side of a transfer path and a CCD image sensor for receiving light reflected from the first side of the document, and a CIS provided in a document feeder is provided with an LED for emitting light to a second side of the document from the other side of the transfer path and a line sensor for receiving light reflected from the second side of the document. The illumination lamp is a xenon lamp, and the LED is a white LED having emission characteristics different from those of the xenon lamp. To the CIS, a filter is attached, which brings emission characteristics of light emitted from the LED onto a document closer to those of light emitted from the illumination lamp onto the document.

The present invention discloses a phosphate or metaphosphate based visible-ultraviolet up-conversion luminescence material doped with rare earth ions, wherein phosphate or metaphosphate serves as a substrate, and the substrate material is doped with Pr<3+>; a molar ratio of phosphate or metaphosphate to Pr<3+> is (0.9-3):(0.01-0.1). The present invention further provides a preparation process of the material, comprising: (a) according to the chemical formula, weighing oxide materials of corresponding elements and ammonium dihydrogen phosphate according to a stoichiometric ratio; and (b) grinding the weighed materials, burning the ground materials at the temperature of 850 to 950 DEG C for 2.5-4 h, cooling the materials to the room temperature, and grinding the materials to obtain a powder-like up-conversion luminescence material. It is experimentally proved that when excited by a common light source (such as an incandescent lamp, an xenon lamp, a fluorescent lamp and an LED lamp), especially by sunlight, the material can emit ultraviolet light UVC that can effectively kill bacteria; and the material has a broad application prospect in the fields of food safety and environmental protection.

The invention belongs to the technical fields of water pollution treatment and photocatalytic materials, and particularly relates to a visible-light-driven photocatalyst Ag-AgCl-BiOCl and a preparation method and application thereof. The visible-light-driven photocatalyst is a composite photocatalyst which is obtained from AgCl and BiOCl through a coprecipitation method and denoted as Ag-AgCl-BiOCl. The preparation method comprises the steps that ethanediol and water are taken as solvent, the BiOCl-AgCl are subjected to coprecipitation in the solvent, precipitation is irradiated through a xenon lamp, part AgCl is resolved into Ag, and the Ag-AgCl-BiOCl composite photocatalyst is finally formed. The composite photocatalyst effectively increases absorption of the BiOCl within a visible light range, a larger specific surface area and the higher electron-hole separation efficiency are showed, and compared with pure BiOCl and AgCl, better adsorbability and photocatalytic activity are achieved. The visible-light-driven photocatalyst Ag-AgCl-BiOCl can be widely used for dye and pharmaceutical wastewater treatment.

The invention provides equipment and a method for detecting an energy-saving effect of a building sun-shading device using imported sunlight, and relates to the field of the detection of the sun-shading energy-saving effect of building sun-shading products. The equipment consists of three parts: a sunlight imported system, a protected hot box and an environmental box respectively, wherein the sunlight imported system provides a stable and continuous light source for the detection, and by combining the protected hot box method, the defect that the detection can be affected by various outdoor negative factors and the defect that the use of an xenon lamp in the detection is extremely expensive are overcome, and a novel solution for detecting the energy-saving effect of the building sun-shading device is provided.

The invention discloses a manufacturing method and a manufacturing device of a flexible printed circuit. The method mainly includes the steps of providing an imaging flexible printed circuit substrate which is coated with nanometer conductive ink or sizing agents; exerting pressure to the flexible printed circuit substrate; and sintering the flexible printed circuit substrate by using xenon lamp sintering technology at the same time when the pressure is exerted and obtaining a target product. By means of the method, a printed circuit can be rapidly manufactured on a low temperature flexible substrate, a metal film which is good in binding force, electrical conductivity and compactness can be obtained, and manufacturing cost is low. The method avoids the processes such as photoetching in the manufacturing process of a traditional flexible printed circuit, rapid and pollution-free flexible printed circuit manufacturing is achieved, and the method is suitable for the production and the manufacture of the flexible printed circuit of the low temperature substrate.

The invention discloses a photoinduced electrochemical biological sensor with advantages of simple operation and high flux, which is successfully applied to simultaneously detect three types of cancer cells. The photoinduced electrochemical biological sensor is characterized in that a layer of gold nanoparticles is modified onto the surface of paper fiber through gold nanometer self-catalytic reduction; then, preparing cadmium sulfide-graphene-zinc oxide bar ternary composite materials at the surface of a paper working electrode which are modified by long gold, and using as photo-electrodes; using chemical light emitting to replace the traditional xenon lamp; by controlling the chemical light emitting reaction sequence, sequentially exciting photo-electrodes; sequentially detecting three photo-current peaks, so as to simultaneously detect the three types of cancer cells.

The invention relates to polyoxometalate-based metal-organic frameworks crystal material assembled with polyoxometalates as a template, and relates to the polyoxometalate-based metal-organic frameworks crystal material assembled with the polyoxometalates as the template. The invention aims to solve the problem that a semiconductor structure formed between end oxygen of the polyoxometalates (POMs)in polyoxometalate-based metal-organic frameworks (POMOFs) crystal material synthesized by the prior art and metals in metal-organic frameworks (MOFs) has the conduction band greater than 0, resultingin a fact that the POMOFs material has no effect of hydrogen production by decomposing water under irradiation of a xenon lamp. The designed and developed POMOFs crystal material with the polyoxometalates as the template has the chemical formula of [CuI2(PPZ)4][H2GeW12O40].8H2O. A method comprises the steps: dissolving germanotungtic acid, copper chloride and 3-(pyridin-4-yl)pyrazole organic ligands in deionized water, adjusting the pH value, and then carrying out reaction for 3 d at the temperature of 160 DEG C. The POMOFs crystal material assembled with the polyoxometalates as the templatecan be obtained.

The invention discloses a preparation method of a surfactant for a photo-reduction method of a Ag/TiO2 nano heterogenous junction by virtue of induction. The preparation method comprises the following steps of: 1) dispersing 0.1-1.0g of TiO2 nano crystal taking 0.1-0.5ml of oleic acid, oil amine or 1-octadecene as surfactant into 50ml of chloroform, stirring to be uniform, so as to obtain TiO2 nano crystal dispersion; 2) taking 0.2-0.5g of AgNO3 and dissolving AgNO3 into 10ml of ethanol, adding the TiO2 nano crystal dispersion, stirring to be uniform, then transferring mixed solution into a three-opening flask, degassing for 20-60min with argon, sealing, and carrying out photo-reduction synthesis for 30-90min under the conditions of stirring and taking an xenon lamp as a light source, thus the Ag/TiO2 nano heterogenous junction is obtained. By applying the preparation method disclosed by the invention, novel photocatalysis material with low cost and high efficiency and other photoelectric functional materials are hopeful to be developed. The synthetic method disclosed by the invention is also effective when being used for preparing a more complex functional nano structure.