147results about How to "High sensitivity" patented technology

A solid-state imaging device is provided. The solid-state imaging device includes a plurality of arrayed pixels, an optical inner filter layer, and an inner-layer lens. Each of the plurality of arrayed pixels includes a photoelectric conversion portion and a pixel transistor. The optical inner filter layer is configured to block infrared light and faces a light-receiving surface of the photoelectric conversion portion of a desired pixel among the arrayed pixels. The inner-layer lens is formed below the optical inner filter layer.

The invention provides apparatus and methods for controlling ion current in an ion transmission device. An apparatus of the present invention comprises an ion source, an ion transmission device, and a controller. The ion source and the ion transmission device are in ion communication therebetween, and the controller is in signal communication with both the ion source and the ion transmission device. The ion current of the ion transmission device may be controlled by coordinating at least one of the operating parameter values of the ion source with at least one of the operating parameter values of the ion transmission device. Such coordination may result in, for example, improved ion current in the ion transmission device. Also embraced by the present invention are mass spectrometer embodiments that include or use the apparatus or methods of the present invention for controlling ion current.

The invention relates to a solid state image pickup device, a method of manufacturing the same, an image pickup device, and an electronic device. The solid state image pickup device includes a pixel section defined by unit pixels arrayed in line and row directions of a semiconductor substrate. Each of the unit pixels includes a photoelectric transducer that is formed on the semiconductor substrate and converts incident light into a signal charge, a waveguide that is formed above the photoelectric transducer and guides the incident light to the photoelectric transducer, and a microlens that is formed above the waveguide and guides the incident light to an end of light incident side of the waveguide. The waveguide has a columnar body with a constant cross section from the end of light incident side to an end of light exit side, and is arranged such that a center of rays of the incident light incident from the microlens on the end of light incident side of the waveguide is aligned with a central axis of the waveguide.

The intelligent gas spring includes a casing, an inner cylinder with cylinder cap and piston to separate the space inside the casing into main gas chamber and subsidiary gas chamber communicated through an on-off gas channel, and a stroke valve installed on the inner cylinder cap to suit with the damping cylinder on the piston. The gas channel may be opened or closed accurately and timely based on the varying road condition so as to regulate the rigidity of the gas spring intelligently to suit for different road condition. The present invention has excellent shock absorbing performance to make the automobile possess high riding comfort and excellent operation stability, and may be installed widely in various kinds of automobile.

A sensor and method for page-based optical data storage. The sensor includes a partially-reflective mirror, a reflective mirror disposed substantially collinear with and spaced apart from the partially-reflective mirror, and an active layer disposed substantially collinear with and between the partially-reflective mirror and the reflective mirror. The partially-reflective mirror has a first and second side and transmits a portion of light incident on the first side. The reflective mirror reflects light incident on the reflective mirror toward the partially-reflective mirror. The active layer absorbs at least a portion of the light oscillating at the resonant frequency.

The invention discloses a detection method of 2-methylimidazole and 4-methylimidazole in baked food. A mixed solution of trichloroacetic acid and methyl alcohol is added to a baked food sample to make protein, colloid and other impurities subside, supersonic extraction is conducted, a solution to be detected is obtained through centrifugation and filtering, a CAPCELL CR (1:4) chromatographic column (5 microns, 2.0 mm*150 mm) is adopted for separation, and the 2-methylimidazole and the 4-methylimidazole are subjected to qualitative and quantitative analysis through an isotope dilution ultra high performance liquid chromatography tandem mass spectrometry method. The method is free of solid phase extraction and other complex sample pre-processing procedures, three types of isomeride of the methylimidazole can be effectively separated, the ion inhibition effect is effectively lowered, sensitivity is improved, and the detection method has the advantages of being low in detection limit and good in accuracy.

The invention provides a method for processing the consistency of sum-difference channel through automatic calibration in a double-channel monopulse mechanism, and when the method is applied to the process of extracting angular error signals by using a sum-difference cross-correlation algorithm, the peak values of sum and difference signals subjected to cross-correlation can be improved effectively, thereby obtaining the maximum angular error detection sensitivity. The method is implemented by the technical scheme which comprises the following steps: in a digital signal processing module in a field-programmable gate array (FPGA) chip, inputting sum signals by a memory (first in first out FIFO1) controlled by a high-speed system clock, and inputting difference signals by a memory (FIFO2) controlled by another high-speed system clock; in a digital signal processor (DSP) chip, designing a logic control program for the whole phase calibration process, wherein the logic control program is used for receiving a phase calibration command issued by application software and controlling the read-write retardation change of the FIFO1 and the FIFO2; and through combining the DSP program with a position (pitching) phase shifter, automatically organizing a process to complete the calibration on sum-difference channel delays, thereby calibrating the sum-difference channel delays to be consistent.

The invention relates to a method for improving differential absorption spectrum on-line monitoring sensitivity, which comprises the following steps of: carrying out characteristic change extraction of the same characteristic on a gas standard absorption section and measured spectroscopic data, and carrying out computation of gas components and concentration on the basis of characteristic change data. The characteristic change of gas absorption spectrums is a point or a range of energy spectrum concentration in a standard absorption section frequency domain graph, and the characteristic change comprises a slowly changing point uL and a fast changing point vH. Band-pass processing with the passbands as uL and vH is carried out on the gas standard absorption section to obtain the characteristic change, and smoothing (low-pass) processing of the fast changing point vH is carried out on the measured spectroscopic data to obtain equivalent emergent light intensity I'(lambda). The invention can effectively eliminate the influences of various noises and interferences on on-line measurement, reserve the part having the greatest contribution to the signal-to-noise ratio and the detection sensitivity in signals, can find an optimal demarcation point of signal processing without using a trial and error method, and finally improve the on-line integrating precision and sensitivity of a differential absorption spectrometric method.

The invention discloses a piezomagnetic turbine loss type reinforced concrete strain sensor, and is characterized in that a piezomagnetic turbine loss effect is used as a sensing mechanism to manufacture a piezomagnetic turbine loss type reinforced concrete strain sensor and a piezomagnetic stain meter thereof for measuring surface strain, inner strain and steel bar strain. The sensor is designed with a mechanics model and a deformation structure of a combined cantilever beam or a cantilever curved beam with two elastic free ends. The invention uses a seamless connection technology of whole manufacturing and conical hole connection and a component separation signal processing method. Compared with the prior art, the invention has the characteristics of high sensitivity, good stability, small measuring error, strong reliability, simple structure, low cost and convenient use; and the invention has wide application prospect.

The invention relates to an intelligent freshness label. The intelligent freshness label is characterized in that a bromocresol green pH (Potential of Hydrogen) sensitive dyestuff is utilized and an anodic aluminum oxide film is used as an adsorption carrier of the dyestuff. The anodic aluminum oxide film has a pore diameter less than 200nm, is vertical to the surface and has the pore density of 10<9> pores / cm<2> to 10<10> pores / cm<2>. The intelligent label provided by the invention is a visualized label which can be used for accurately characterizing the freshness of foods and directly feeding food freshness information back to consumers. According to the intelligent freshness label provided by the invention, the quality change of foods in packages can be directly characterized according to changes of environment parameters including temperature, time and the like of the foods.

The invention discloses a detection method of ultra-high performance liquid chromatography-tandem mass spectrometry of ipconazole residues in maize. The detection method comprises the steps of: firstly extracting the ipconazole in the maize by utilizing an optimized QuEChERS method (purifying agents in extraction and purification steps are three kinds of PSA, C18 and GCB) with acetonitrile as an extraction solvent, and obtaining higher adding standard recovery rate; and then adopting the ultra performance liquid chromatography-tandem mass spectrometry (UPLC-ESI+-MS / MS) to detect the ipconazolein the maize. The detection method is simple, sensitive and selective, and can provide scientific techniques for safety monitoring and environmental behavior assessment of agricultural products.

The invention discloses an in vitro detection kit for thrombin-activatable fibrinolysis inhibitor (TAFI) content. The kit is used for the in vitro detection of the TAFI content by using the biological property that a polyamidoamine (PAMAM) dendritic polymer can be combined with an antibody and combining the traditional enzyme-linked immuno sorbent assay (ELISA) method, and the kit develops a new in vitro diagnostics method for the TAFI and improves the sensitivity of the TAFI in vitro detection. The kit comprises an antibody coated ELISA plate, a sample diluent, a TAFI standard, a detergent, a PAMAM-labeled horse radish peroxidase-linked antibody, an antibody diluent, color development buffer solution, 30 percent hydrogen peroxide, o-phenylenediamine and stop solution. The kit overcomes the defects of expensive equipment, long detection time and the like in the prior art; compared with other detection kits, the kit is simple, convenient and fast in operation, low in cost, sensitive in diagnosis and has low detection limit and the like; the kit for auxiliary diagnosis improves the detection rate and the accuracy of related diseases, and fulfills the purposes of early discovery and early treatment; and the kit reduces unnecessary pain and medicinal expense of examined persons, and improves the quality of life of the examined persons.

The invention discloses a double-band imaging discharge detector for a high-speed train, and an application method of the double-band imaging discharge detector. The detector comprises a visible light lens, a visible light camera, an ultraviolet lens, an ultraviolet camera, and a processing and control board, and a power board. The detector is installed behind a pantograph of the roof of a locomotive. The visible light camera matched with the visible light lens obtains visible light background images of the pantograph and an overhead line system in front of the locomotive, and transmits the images to the processing and control board. The ultraviolet camera matched with the ultraviolet lens and a filter obtains the ultraviolet target images of the pantograph and the overhead line system in front of the locomotive, and transmits the images to the processing and control board. The processing and control board carries out the image processing, and judges whether the key parts of the pantograph and the overhead line system perform partial discharge and whether the pantograph and the overhead line system generate arcs or not, and carries out the positioning and displaying of video images when the partial discharge happens or the arcs are generated. The detector can timely find out the partial discharge conditions, detects the arc state in real time, and reduces the unnecessary economic loss in order to guarantee the normal transportation order of the high-speed train.

The invention relates to a nanometer flow sensor based on the field effect tube in particular to a nanometer flow sensor which can magnify the microscopic variations of conductivity of medium into the drain current fluctuation of the field effect tube. The invention comprises the field effect tube grid, wherein the nanometer channel is arranged on the field effect tube grid, two sides of the nanometer channel are connected with left and right micrometer channel, the grid control circuit comprises the medium in the micrometer channel, the medium in the nanometer channel and positive-negative electrode, and the electric resistance of the grid control circuit comprises the electric resistance R of medium in the nanometer channel and two electric resistances R1, R2 of medium in the micrometer channel. The aim of the invention is to provide a high fidelity nanometer flow sensor based on the field effect tube which can magnify the microscopic variations of conductivity of medium into the drain current fluctuation of the field effect tube.

The present application provides a method for diagnosing and / or evaluating the presence or absence, severity or degree of the improvement of a retinal disease in a subject, which comprises determining and / or evaluating circulatory parameters, retinal function, retina morphology and / or visual relating quality of life (QOL).

The invention provides preparation of a novel fluorescent imprinting sensor based on a magnetic metal organic framework (MOF), and the novel fluorescent imprinting sensor is successfully used for detection of hepatitis virus a (HAV). In the invention, light emitting MOF (MIL-101-NH2) is introduced to replace quantum dots and organic dyes to serve as output signals. The light emitting MOF materialcan not only be used as the output signals, but also can be used as a carrier. Meanwhile, the metal organic framework has a larger specific surface area, and thus can provide more imprinting sites, thereby improving the response sensitivity of the sensor; due to the combination of ferric oxide particles and the MIL-101-NH2 material, the process of preparing an imprinting polymer is simpler and faster; and a fluorescence analysis method has the advantages of high sensitivity, stronger selectivity, convenient operation and so on. Therefore, by combining the above several advantages, compared with other analysis methods or sensors, the molecular imprinting fluorescent chemical sensor constructed by the invention has good selectivity for template molecules and high detection sensitivity. The results show that the method is simple, convenient and fast, can be used for the qualitative and quantitative detection of HAV, and has important practical potential and significance in biosensing andvirus detection and prevention.