27 results about "Fluorescence spectrometer" patented technology

This utility model belongs to the field of optical measurement technology and discloses an atomic fluorescence spectrometer, including: a frame, a worktable, and a positioning component. The frame supports the atomic fluorescence spectrometer, and the worktable is connected to the frame for placing the sample to be tested. The positioning component includes a telescopic component, a movable component, a guide component, a squeezing component, and a rubber component. The telescopic component is disposed on the worktable, and its movable end is drivenly connected to the movable component. The movable component is movably disposed on the worktable. The guide component is connected to the movable component and slidably disposed on the worktable. The squeezing component is connected to the movable component, which can achieve squeezing and fixing of the sample to be tested, thereby effectively limiting the position of the sample and avoiding positional displacement caused by external factors during the detection process, thus ensuring the accuracy of the atomic fluorescence spectrometer detection results.

This utility model discloses a safety warning triggering device for an energy-dispersive X-ray fluorescence spectrometer, comprising a sample triggering substrate for mounting and fixing the main body, a sliding component mounted on the sample triggering substrate, a sliding mounting plate mounted on the sliding component, a sample triggering plate connected to the sliding mounting plate, an inductive triggering piece mounted on the sliding mounting plate, a photoelectric switch mounted on the sample triggering substrate and corresponding to the inductive triggering piece, and an elastic component in contact with the sliding mounting plate and mounted on the sample triggering substrate for resetting the sliding mounting plate. This utility model uses a trigger signal generated by the displacement of the elastic component to provide a safety warning for samples transported at excessive heights, ensuring the normal operation of the equipment and protecting the sample from potential damage by strong forces, thus ensuring the safety of this expensive product.

The application provides a method for identifying bases, drops a DNA solution on a molybdenum disulfide film to prepare a DNA testing device, uses a fluorescence spectrometer to detect fluorescence spectrum data of the molybdenum disulfide under the influence of bases, carries out characteristic matching degree comparison analysis based on the fluorescence spectrum curve of the molybdenum disulfide under the influence of unknown bases and the fluorescence spectrum curve of the molybdenum disulfide under the influence of known bases, and determines which kind of known base the unknown base is according to the matching degree comparison analysis result; the application can effectively identify bases by using the DNA and MoS2 adsorption and charge transfer mechanism, and has a lower requirement for the concentration of the used DNA solution to be tested; meanwhile, the MoS2 has the advantages of low cost and simple preparation, and compared with the prior art, the application has the advantages of low-concentration trace DNA base effective identification, simple device structure, simple operation and low cost.

The application discloses a kind of planet laser spectroscopy acquisition device and method combined with remote ultraviolet Raman-fluorescence technology, and it is related to deep space exploration spectral measurement technical field.The device includes ultraviolet laser emission unit, beam expander unit, dichroic beam splitter, cassegrain telescope unit, signal separation and acquisition unit, Raman spectrometer, fluorescence spectrometer and computer control unit.Laser is projected to remote target by cassegrain telescope after beam expansion and dichroic beam splitter, and the Raman and fluorescence signals excited are received by the same telescope, then after filtering out Rayleigh scattering light, they are collected by optical fiber into corresponding spectrometer.The application can realize the integrated collection of ultraviolet Raman and fluorescence spectrum of remote, non-contact planetary surface material, and provide efficient optical detection means for mineral composition identification, organic matter and potential life marker detection.

1. The name of the design product: handheld X-ray fluorescence spectrometer. 2. The use of the design product: the design product is used for an instrument for detecting the composition and content of a substance by spectral measurement. 3. The design points of the design product: the combination of shape, pattern and color. 4. The picture or photo that best shows the design points: perspective view 1. 5. The design claimed contains color.

This utility model discloses a hazardous waste detection device for chemical fiber sludge, belonging to the field of sludge detection technology. Key technical features include a workbench with an X-ray fluorescence spectrometer mounted on the right side of its top. A drying mechanism is fixedly connected to the left side of the top of the workbench, and a crushing mechanism is fixedly connected to the top of the workbench. A PLC controller in the drying mechanism, in conjunction with an electric fan and a semiconductor heat-conducting plate, achieves hot air circulation to dry the sludge. A storage box facilitates sample storage and retrieval. Exhaust vents circulate hot air inside the drying chamber. A servo motor in the crushing mechanism drives a rotating rod and a crushing roller to rotate at high speed, quickly and thoroughly breaking down lumpy and compacted sludge, resulting in uniform sample particle size. This provides samples for subsequent X-ray fluorescence spectrometers and other detection instruments, preventing fluctuations in detection data due to uneven sample particle size. Additionally, a feeding control structure consisting of a sleeve, a cover, a pull rod, and a return spring is included.

An X-ray fluorescence spectrometer includes an X-ray tube, a detector, a power supply apparatus, and a control circuit. The X-ray tube irradiates a sample with primary X-rays. The detector detects secondary X-rays generated from the sample. The power supply apparatus includes a high-voltage power supply unit and a detection circuit. The detection circuit detects voltage variation in a high-voltage circuit including the X-ray tube. The detection circuit includes a first resistive element having one end connected to a ground potential, a plurality of second resistive elements connected in series between the other end of the first resistive element and a power feed line, a plurality of capacitors connected in parallel to the second resistive elements, respectively, and a high-pass filter connected to the other end of the first resistive element. The control circuit detects occurrence of electric discharge in the high-voltage circuit based on a signal from the detection circuit.

This invention discloses an early warning and source tracing method for CO2 microleakage in saline aquifers based on isotope tracing, comprising: an injection device including an air compressor, a tracer storage tank, and an injection pump; a monitoring well device including a wellbore, a wellhead device, and monitoring instruments, arranged around the injection device; a sampling device including a sampler and a sample bottle, connected to the monitoring well device; analytical instruments including an inductively coupled plasma mass spectrometer, an isotope ratio mass spectrometer, an X-ray fluorescence spectrometer, and an atomic absorption spectrometer; and a data processing and early warning system. This invention solves the problem that conventional monitoring technologies cannot identify early microleakage, achieving accurate early identification and timely warning of CO2 microleakage. Furthermore, through optimized design of the structure of each device, the integrity and pollution-free nature of the saline aquifer water samples are ensured, enabling accurate and rapid analysis of water quality parameters.

The utility model discloses a device for fluorescent spectrometer test powder sample, including angle adjustable sample support base, angle adjustable sample support base is equipped with with angle scale's base tray and passes through with angle scale's base tray physical center's pivot, pivot can rotate in with angle scale's base tray, pivot is consolidated with the sample cell support of hollow formula with base tray, and the sample cell support of hollow formula with base tray is equipped with the slot of being able to insert sample cell, and sample cell is inserted from the slot and is opposite base tray, and pivot rotation drives the sample cell support of hollow formula with base tray. The device angle adjustable, convenient to use, low in cost, can avoid the pollution of sample bin when replacing the sample of loading in the test, can be convenient and fast rotation angle and respond to different test mode, and the device is not only suitable for the test of fluorescent test sample, but also suitable for other optical test demand.

A power supply that applies a tube voltage to a target includes a transformer, a switching circuit connected to a primary side of the transformer, and a substrate to which the switching circuit and the transformer are connected, the substrate including a first layer and a second layer. The transformer includes a first primary winding and a second primary winding on the primary side. A first wiring pattern that connects the first primary winding and the switching circuit to each other is located in the first layer. A second wiring pattern that connects the second primary winding and the switching circuit to each other is located in the second layer. The first layer and the second layer are arranged such that at least a part of the first wiring pattern overlaps with the second wiring pattern when the substrate is viewed from a stacked direction in a plan view.

The utility model relates to detection equipment technical field especially is a kind of geological prospecting rapid detection equipment, including X-ray fluorescence spectrometer and detection head, and the outer side fixedly connected with external block is installed in the inside of external block and is sealed and is protected component, and external block includes sleeve block, and the inside of sleeve block is equipped with guiding air hole, and the rear end fixedly connected with spring of guiding air hole, and sealed and protected component includes protective cover, and the inside of protective cover is equipped with air duct, and the rear end fixedly connected with double cylinder of protective cover, and the outside fixedly connected with first rubber seal ring of double cylinder, and the inside of double cylinder is equipped with intercommunication groove, and the front end fixedly connected with air bag ring of protective cover, and the inside fixedly connected with second rubber seal ring of protective cover, in the utility model, device can effectively prevent external light to enter instrument inside and X-ray fluorescence leakage, improve detection accuracy, prevent X-ray fluorescence from causing radiation injury to staff simultaneously, improve use safety.

This invention discloses a rapid method for detecting the purity of industrial-grade lanthanum oxide using boric acid as a binder, belonging to the field of material purity testing technology. The method involves sampling and mixing samples at a frequency of one batch per trip. The sample is ground to a particle size ≤100μm, then mixed with boric acid at a mass ratio of 1:1-3:1, dried, and filled into a 40mm diameter mold. One to three parallel samples are prepared by pressing under a pressure of 5-30MPa and a holding time of 15-45s, and then sealed and allowed to stand for 1-6 hours. Simultaneously, a lanthanum oxide standard sample with a purity of 90.0%-99.9% is prepared using the same proportion and method. The standard and sample are detected using an X-ray fluorescence spectrometer with a resolution ≤0.1keV, with the La Kα1 characteristic spectral line channel set. The actual purity of the sample is calculated using a standard correction factor. When the relative deviation of the parallel samples is ≤0.5%, the average value is taken as the final result. This invention solves the problems of long detection cycles, low accuracy, and complex operation of traditional methods, reducing the detection cycle to ≤1.5 days. Within hours, the relative standard deviation of the test results is ≤0.30%, and the operation threshold is low.

Measurement can be performed even when spaces divided by a partition film have a pressure difference therebetween, and the partition film is easily extended without causing warping and wrinkles. Provided is an X-ray fluorescence spectrometer, which includes: an irradiation chamber; and a sample chamber, the X-ray fluorescence spectrometer including: a window frame holding member; and a window frame member, which is configured to hold a partition film. The window frame member includes: an inner film holding member including a peripheral wall extending from a proximal end; and an outer film holding member, the outer film holding member being configured to be inserted from the distal end of the inner film holding member to be mounted to the proximal end of the inner film holding member so as to fix a surrounding of the part of the partition film to the inner film holding member.

This invention relates to the field of oil and gas logging technology, and provides a three-dimensional quantitative fluorescence method for evaluating reservoir oil and gas in oil-based logging. The method comprises the following steps: Step S1, taking cuttings samples from the target formation of the oil well under oil-based drilling fluid conditions, and cleaning and drying the samples; Step S2, weighing 0.01g to 0.05g of cuttings samples, and using a three-dimensional fluorescence spectrometer to detect and analyze the samples, collecting spectra and detection data; Step S3, inputting the excitation wavelength, emission wavelength, and corresponding oil content data of the main peaks of the background and reservoir cuttings into a three-dimensional coordinate space to obtain a three-dimensional fluorescence data projection map of the background and reservoir cuttings. This invention establishes a three-dimensional quantitative fluorescence method for evaluating reservoir oil and gas contaminated by oil-based drilling fluid, reducing the impact of oil-based drilling fluid on oil and gas evaluation from the source of analysis. The method is convenient and effective, enriching the interpretation means of oil-based logging.

Assessing concentrations of components in a photovoltaic panel includes exposing a region of a photovoltaic panel to irradiation from an X-ray fluorescence spectrometer. Exposing the region of the photovoltaic panel ionizes a multiplicity of atoms in the region, and each atom of the multiplicity of atoms corresponds to a chemical component. The radiation emitted by the multiplicity of atoms is analyzed to assess a concentration of each chemical component in the region.

1. The name of the design product: single-wavelength X fluorescence spectrometer (side illumination type). 2. The use of the design product: for determining the content of sulfur, chlorine, phosphorus and silicon in gasoline, kerosene and other liquid samples. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a detection method for water-soluble chromium in cement, and particularly relates to the following steps: 1) preparing standard solutions with different concentrations of hexavalent chromium and adding the standard solutions to a filter membrane substrate in batches; 2) measuring the fluorescence intensity of the standard solutions with different concentrations by using an X-ray fluorescence spectrometer, and establishing a standard curve of concentration-fluorescence intensity; 3) preparing a cement sample filtrate; 4) adding the filtrate to the filter membrane substrate in batches and drying; 5) testing the filter membrane substrate by using the X-ray fluorescence spectrometer, and obtaining the characteristic fluorescence intensity of the chromium element; and 6) substituting the fluorescence intensity into the standard curve to calculate the concentration of the hexavalent chromium, and then converting the concentration into the content of the water-soluble hexavalent chromium in the cement sample. The application significantly improves the detection sensitivity of XRF to trace hexavalent chromium Cr by solid-phase enrichment, the detection limit is as low as 0.003 mg / L, and the application has the advantages of rapidness, simplicity, low cost, good accuracy and the like, and is suitable for rapid screening and quantitative analysis of the water-soluble hexavalent chromium Cr in cement products.

The present application relates to the technical field of multi-modal photoelectric imaging equipment, and particularly relates to a multi-modal photoelectric imaging equipment and a control device. The technical scheme comprises a rack, a conveying device, a detection system and a feeding acceleration mechanism. The detection system integrates a hyperspectral imaging camera, a high-resolution industrial camera and an X-ray fluorescence spectrometer probe controlled by a synchronous driving mechanism. The present application drives the probe and the material on the conveying belt to move synchronously through the synchronous driving mechanism, realizes the X-ray fluorescence fixed-point precision measurement of the material on the continuous production line without stopping, and solves the industry problem of the contradiction between different modal sensors and the movement speed of the material. At the same time, the designed feeding acceleration mechanism uses negative pressure adsorption and an independent acceleration belt to ensure that the material is smoothly fed at a stable speed and accurate interval, avoiding the interference of inconsistent initial state on subsequent synchronous detection.

This application provides a microscopic imaging system, comprising: an electrically controlled light source module, including fluorescent sub-light sources emitting fluorescent excitation signals of different wavelengths; a fluorescence detection component, including at least two fluorescence detection channels and a fluorescence spectrometer, wherein a fluorescence signal is generated by the sample to be detected receiving a fluorescence excitation signal and is selectively guided to the corresponding fluorescence detection channel by the fluorescence spectrometer; a first light guide, including an objective lens and a first spectrometer located on the side of the objective lens away from the sample to be detected; one of the fluorescence excitation signal and the fluorescence signal is reflected by the first spectrometer, and the other is transmitted by the first spectrometer; and a bright-field detection component, including: a second light guide and a color camera, wherein the color camera receives a bright-field signal generated from the sample to be detected and transmitted through the second light guide. This application also provides a fluorescence microscopic imaging method, a multicolor fluorescence microscope, and a biological sample identification method.

Provided is an x-ray fluorescence spectrometer. When a partition wall (10) has been closed, a sample chamber (1) and an irradiation chamber (2) are substituted with nitrogen, and a spectral chamber (3) is evacuated. A sample (4) is placed in the sample chamber (1) after the substitution is complete, and in response to an instruction from an operator, measurement is performed in a wait mode in which the sample (4) is irradiated with primary x-rays (6) and measurement begins after a prescribed amount of time has passed or a non-wait mode in which the sample (4) is irradiated with the primary x-rays (6) and measurement begins immediately. The prescribed amount of time of the wait mode is the amount of time, found in advance, until the ratio of the measurement intensity to a final arrival measurement intensity for x-ray fluorescence (8) of a prescribed wavelength becomes equal to or greater than a prescribed numerical value or is the amount of time until the ratio of the change in a preliminary measurement intensity to the preliminary measurement intensity for x-ray fluorescence (8) of a prescribed wavelength during preliminary measurement immediately after the sample (4) is irradiated with the primary x-rays (6) becomes equal to or less than a prescribed numerical value.

The utility model discloses a kind of X-ray fluorescence spectrometer sample holders, it is related to experimental equipment technical field.The sample holder includes hand handle, heighten body and sample piece slot, the heighten body is cylinder, its top surface center is equipped with hand handle, bottom surface center is set up sample piece slot.Hand handle adopts arc concave design, in line with ergonomics;Sample piece slot realizes the quick fixation of sample piece by interference fit.Sample holder is integrally injection molded by ABS resin, with light, wear resistance and anti-deformation characteristics.Compared with traditional metal lock catch, the sample holder of the utility model adopts inverted design, operation time is significantly shortened, efficiency is improved, and manufacturing cost is reduced.Meanwhile, the X-ray absorption rate of ABS resin material is low, there is no metal component interference, which guarantees detection accuracy.The utility model solves the problems of complex operation, high cost and signal interference in the prior art, is suitable for a variety of sample cups, has high versatility and durability.

The application belongs to the technical field of fluorescent probe detection, and particularly relates to a kind of blue fluorescent carbon quantum dots and its application. The application takes thioflavin T as raw material, ethanol as solvent, and synthesizes blue fluorescent carbon quantum dots with large conjugated structure through simple one-step microwave method. The carbon quantum dots are difficult to dissolve in water and easy to dissolve in organic solvents, and have sensitive fluorescence response to ethanol in the mixed solution of ethanol and water. Using the carbon quantum dots as fluorescent probe, the rapid and efficient detection of ethanol content in liquor can be realized by using ordinary fluorescence spectrometer, and the application has the advantages of convenient operation, high sensitivity, short response time and the like, and has broad application potential to develop portable alcohol detection scheme.

This invention discloses a food heavy metal component detection device, belonging to the technical field of food testing equipment. The invention includes a disinfection cabinet, on the top of which is fixedly installed an X-ray fluorescence spectrometer, an electric sliding door, and a sealing cover. The electric sliding door is located between the X-ray fluorescence spectrometer and the sealing cover, with both ends of the electric sliding door communicating with the interior of the X-ray fluorescence spectrometer and the sealing cover, respectively. This invention utilizes a sample transfer mechanism. The sample transfer mechanism places a sample cup on a flat pressure seat, then inserts a round cover for sealing. A steering motor then drives the round cover to compact the powder. Finally, the electric sliding door opens, and the sample transfer mechanism delivers the pre-prepared sample cup into the sample chamber of the X-ray fluorescence spectrometer for detection. This completes the fully automated pretreatment and heavy metal component detection of the sample, integrating multiple processes, reducing working time, eliminating multiple manual operations, and avoiding transportation risks.

This invention, a transformer fault type discrimination method based on fluorescence spectroscopy correction, belongs to the field of transformer fault diagnosis technology. It addresses the problem of designing a simple, computationally efficient method for rapidly identifying transformer fault types, particularly thermal aging and discharge breakdown faults. The invention establishes a mapping relationship between the fluorescence spectrum of transformer oil and the concentration of aromatic hydrocarbons using a multivariate regression correction method. A multivariate correction filter is designed based on transmittance to calculate the aromatic hydrocarbon concentration in the transformer oil, replacing the fluorescence spectrometer. This not only reduces equipment costs and size but also improves the cost-effectiveness of transformer oil fault detection. Furthermore, based on the time-periodic characteristics of thermal aging and discharge breakdown faults, the rate of change in aromatic hydrocarbon concentration is used to distinguish the transformer fault type, greatly simplifying the calculation process and reducing computational load. This is of significant importance for extending the service life of transformers.

This invention relates to a long-alkyl chain lysosomal fluorescent probe, its method, composition, formulation, kit, and application, belonging to the field of biodetection technology. Its chemical structural formulas are shown in formulas (I), (II), and (III). The pyrrolephenylquinoline salt series compounds OPQ-8C, OPQ-10C, and OPQ-12C provided by this invention have the characteristics of simple synthesis, low cost, and ultra-high photostability, making them suitable for long-term fluorescence signal monitoring based on fluorescence spectrometers and confocal fluorescence microscopes. This series of fluorescent probes maintains stable fluorescence signals under different pH environments, and its fluorescence activation mechanism is independent of acidic conditions (lysosomes). In living cells, this series of probes can specifically label lysosomes, enabling long-range real-time monitoring of dynamic changes in lysosomes. Based on the hydrophobic interaction between its long alkyl side chain and the phospholipid membrane, the probe can be positioned on the lipid membrane surface without entering the vesicle lumen.