792 results about "Analytical Testing" patented technology

An analytical test device useful for example in pregnancy testing, comprises a hollow casing (500) constructed of moisture-impervious solid material, such as plastics materials, containing a dry porous carrier (510) which communicates indirectly with the exterior of the casing via a bibulous sample receiving member (506) which protrudes from the casing such that a liquid test sample can be applied to the receiving member and permeate therefrom to the porous carrier, the carrier containing in a first zone a labelled specific binding reagent is freely mobile within the porous carrier when in the moist state, and in a second zone spatially distinct from the first zone unlabelled specific binding reagent for the same analyte which unlabelled reagent is permanently immobilised on the carrier material and is therefore not mobile in the moist state, the two zones being arranged such that liquid sample applied to the porous carrier can permeate via the first zone into the second zone, and the device incorporating means, such as an aperture (508) in the casing, enabling the extent (if any) to which the labelled reagent becomes bound in the second zone to be observed. Preferably the device includes a removable cap for the protruding bibulous member.

The present invention provides a method of measuring an analyte, such as glucose in a fluid sample, such as whole blood, by a reflectance reading device. The method includes making periodic intermediate calculations of analyte level and dynamically ascertaining when an analytical reaction has reached an end point. Once stable, the process stops making periodic calculations and reports the final, actual glucose concentration. According to an exemplary embodiment, the method is performed by a reflectance photometer using an analytical test strip containing reagents that react with an analyte of interest in the test fluid. The end point is determined by calculating an intermediate analyte level of the testing element at predetermined intervals and calculating a ratio value corresponding to the (n)th measurement to an (n-5)th measurement. When two consecutive ratio values are less than or equal to a predetermined value, the end point is deemed reached and the final analyte level ascertained.

The present invention provides a method of measuring an analyte, such a glucose in a fluid sample, such as whole blood, by a reflectance reading device. The method includes making periodic intermediate calculations of analyte level and dynamically ascertaining when an analytical reaction has reached an end point. Once stable, the process stops making periodic calculations and reports the final, actual glucose concentration. According to an exemplary embodiment, the method is performed by a reflectance photometer using an analytical test strip containing reagents that react with an analyte of interest in the test fluid. The end point is determined by calculating an intermediate analyte level of the testing element at predetermined intervals and calculating a ratio value corresponding to the (n)th measurement to an (n-5)th measurement. When two consecutive ratio values are less than or equal to a predetermined value, the end point is deemed reached and the final analyte level ascertained.

The invention relates to embodiments of an analysis system and to a method for analyzing a sample on an analytical test element, with the analysis system comprising a test element receptacle for receiving and positioning a test element in an analysis position. In an exemplary embodiment, the test element receptacle contains a guide part and a lock part, the guide part having means for guiding a test element into and out of the analysis position, the lock part comprising a frame and a bolt element, which frame and bolt element are connected to one another by a hinge. The bolt element can be pivoted about the hinge between a first position and a second position with respect to the frame. The bolt element comprises a latching lug for engaging in a recess in test element when the bolt element is in the first position and when the test element is positioned in the analysis position.

A front-end system accepts samples and selectively provides aliquots of those samples to selected clinical chemistry analyzers coupled to the front-end system. The front-end system is coupled to an assembly of one or more clinical chemistry analyzers that might, for example, provide complementary analytical tools so that the overall system of front-end system and clinical chemistry analyzers provides a predetermined broad range of clinical analytical testing. The testing protocols for samples input to the overall system can be independently determined. Any sample may undergo a test within one or more of the clinical chemistry analyzers or a series of tests within a single or more typically within plural ones of the analyzers, depending upon the testing sequence defined in for that sample. The front-end system automatically identifies samples, draws aliquots, and transports the aliquots to the one or more clinical chemistry analyzers coupled to the front-end system. Sample identification, handling and testing are preferably automated A within the overall system to provide complex testing with reduced operator involvement. Consequently, the overall system may facilitate reduced operator costs and a reduced likelihood of errors in the routing and processing of samples.

An automated system and method for individually processing multiple specimens of particulate matter-containing liquid in respective containers. The containers are transported seriatim along a processing path to present them to, at least, a preprocessing apparatus (e.g., a mixing head), and then to a specimen acquisition apparatus, which removes preprocessed specimen fluid from the container for subsequent analytical testing or evaluation. Each apparatus is actuated in response to presentation of a container thereto so as to carry out its respective operation independently. An exemplary system can include, in sequential order, stations for container loading and unloading, container uncapping and cap disposal, specimen mixing, filter loading, specimen acquisition (e.g., by aspiration, and then slide printing), filter disposal, and container resealing. The system is capable of unattended operation for many hours at a time, and can interface with an integrated data management system to provide fully integrated specimen and information management in a complete diagnostic laboratory system.

A single gas tight system may perform multi-functions including reducing the thickness of oxides on contact pads and probing, testing, burn-in, repairing, programming and binning of integrated circuits. A holding fixture holds a wafer having integrated circuits and aligns the wafer to a full-substrate probing device. A temperature control device is used to heat the wafer during an oxide reduction process or during burn-in of the wafer. During the oxide reduction process, hydrogen is introduced into the chamber, and the wafer is heated so that the oxides on the contact pads can combine with hydrogen to form water vapor, thus reducing the thickness of the oxides. A computer analyzes the test and / or burn-in data and provides control signals for repairing or programming the integrated circuits.

An automated system and method for passive testing of alcohol and drug abuse. The system enters a participant or subject into the system who is to be monitored during a probationary or other program for alcohol or drug abuse offenders. The system provides a drug testing home device or a drug testing kiosk device for use by the participant. The system enrolls the biometrics information of the participant into the computer system (e.g., finger print, voice, image, volatile compound organic gas level, and pH level). When the participant is to be tested in accordance with a testing schedule, the system validates these same biometrics of the participant, conducts the test, and then analyzes the test information for determining if the participant has been using alcohol or other drugs and should be subjected to a confirming urinalysis exam.

A method and system for developing fault models from structured text documents, such as service procedures. A service procedure or other structured text document is parsed using diagnostic rules to extract symptoms, failure modes, and correlations. Testing procedures and repair instructions are also parsed to create a fault tree and identify additional symptoms and failure modes. Reachability analysis is then used to find hidden dependencies in the fault tree, thus yielding additional correlations. The resultant symptoms, failure modes, and correlations are then assembled into a fault model, which can be used for real-time fault diagnosis onboard a vehicle, or for off-board diagnosis at service shops.

Immunoassay analytical test apparatus for allergy diagnosis, which apparatus comprises a zone for receiving a sample containing an analyte, a zone for receiving a mobile phase (the zone may be the same as the sample receiving zone, or different thereto), a detection means for permitting detection of the analyte by immunoreaction, a first flow path for flow of the analyte in the mobile phase from the sample receiving zone to the detection means, and a second flow path permitting flow of a mobile phase to the detection means.

The present invention provides a reagent mixing device, which comprises a driving device, a transport device and a rotating part, wherein the transport device comprises a conveying mechanism for conveying a reagent kit and a mixing mechanism for mixing a reagent; the conveying mechanism is driven by the driving device to move relative to the mixing mechanism; the rotating part and mixing mechanism are in transmission matching; the conveying mechanism and the mixing mechanism are sleeved with each other to form a bearing structure. The present invention further provides a reagent mixing method. The reagent mixing device is small in size, smart in structure, easy to assemble and low in manufacturing cost. The reagent mixing method provided by the present invention is simple and reliable, high in overall operation reliability, and has very high application values in such analysis and test fields as full-automatic chemiluminescence immunoassay analyzers and biochemical analyzers.

An analytical test element for determining at least one analyte in a liquid is provided comprising a support, at least one detection element, and a channel capable of capillary liquid transport which is at least partially formed by a hydrophilic network, one side of which is at least partially in contact with the inner space of the channel and the opposite side of which is at least partially in contact with the detection element such that liquid can be transported from the channel across the network to the detection element. The invention also concerns the use of the analytical test element to determine an analyte in a liquid and a method for determining at least one analyte in the liquid with the aid of an analytical test element.

Disclosed are methods and systems for calculating test coverage of a software organizational schema. The method and systems involve retrieving the software organizational schema associated with an application, receiving an assigned weight factor to the one or more software organizational schema components associated with the application, determining a number of processed code lines and a total number of the code lines associated with the one or more software organizational schema components, calculating a test coverage for the one or more software organizational schema components based on the weight factor, the number of processed code lines and the total number of code lines of the software organizational schema component.

The present invention relates to analytical testing devices comprising a single channel with micro-environment sensors and methods for assaying coagulation in a fluid sample applied to the micro-environment sensors, and in particular, to performing coagulation assays using a single channel with micro-environment sensors in a point of care test cartridge. For example, the present invention may be directed to a sample analysis cartridge including an inlet chamber configured to receive a biological sample and a conduit fluidically connected to the inlet chamber. The conduit includes a sensor chip including a first micro-environment sensor and a second microenvironment sensor, and a fluid lock valve. The sample analysis cartridge further includes a pump configured to push the biological sample over the first micro-environment sensor and the second microenvironment sensor to the fluidic lock valve such that the biological sample is positioned over the first micro-environment sensor and the second micro-environment sensor.

The invention discloses a scene-based automatic driving simulation test evaluation service cloud platform and an application method thereof. The system invention is used for automatic driving simulation test and is provided with a client, a cloud and a background management terminal, the client transmits corresponding function operation requirements to the cloud through a function module interface, and the cloud drives corresponding function modules to execute corresponding functions according to the function operation requirements; and the background management terminal manages and maintainsthe cloud and the client. In platform application, the method comprises functional applications of data uploading, data fusion, scene extraction, scene labeling, scene analysis, scene generation, simulation analysis and test evaluation. The whole tool chain including the scene database, the scene extraction and labeling, the scene analysis, the scene generation, the simulation analysis, the test evaluation and the like is integrated to the cloud, unified scheduling, management and use of automatic driving simulation data and test evaluation resources are realized, and the test efficiency is improved.

The present invention provides an analytical test device for conducting assays of biological fluids. Methods for carrying out the assays with the disclosed analytical test devices are also provided.

The invention discloses a method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry. According to the invention, microwave digestion and inductively coupled plasma mass spectrometry are combined together to measure 17 trace elements in reconstituted tobacco; a reconstituted tobacco sample is subjected to microwave digestion, and then ICP-MS measurement is quantitatively carried out through combination of a standard mode, collision / reaction cell technology and an internal standard method. Measurement results show that: 17 target elements have good linearity, a correlation coefficient r is no less than 0.9995, a detection limit is 0.001 to 0.065 mu g / L, an added standard recovery rate is 79.31 to 123.07%, and relative standard deviation is 1.15 to 6.38%. The method provided by the invention has the advantages of simple operation, short analysis time, stability, accuracy, etc. and can be used for analysis and test of large-batch reconstituted tobacco samples in the tobacco industry.

A method and apparatus for data analysis according to various aspects of the present invention is configured to test a set of components and generate test data for the components. A diagnostic system automatically analyzes the test data to identify a characteristic of a component fabrication process by recognizing a pattern in the test data and classifying the pattern using a neural network.

The invention pertains to the technology field of micro total analysis, relating to a three-dimensional micro-flow control chip which includes an in-situ polybutyl methacrylate pretreatment integral pole. The polymer butyl methacrylate pretreatment integral pole is prepared by ultraviolet-radiated in-situ polymerization in the micro-channel on the micro-flow control chip; the substrate of the micro-flow chip can adopt glass, silicon, polymethyl methacrylate (PMMA) or poly(dimethylsiloxane) (PDMS), and the like as base materials, and etched with micro-channel networks for fluid mixing and reaction; the cover plate adopts PDMS integral casting method to fabricate the micro-channels of the solid-phase extracting and processing unit, a fluid lead-in / lead-out hole is arranged at the position corresponding to each micro-channel opening of the substrate, and is directly bounded with the substrate, and integration of the sample pretreatment integral pole and the micro-flow control chip micro-pipeline network is realized. The chip has the advantages of easy fabrication, low cost, small sampling quantity, rapid compartment analysis, and is applicable to pretreatment, analysis and test of sophisticated biochemical samples.

The invention relates to a real-time overall test method of a network system. The network system comprises a test center system and a client terminal loopback response system. The method comprises the following steps: the test center system sends test packets to a network terminal; after the client terminal system receives the test packets, the client terminal system returns the received test packets to the test center system immediately; the test center system carries out loop detection on all the returned test packets: calculation of a delay packet and a jitter packet, and detection of a delayed packet, a repeated packet, an out-of-order packet and a lost packet; the test center system records the generated basic information of a single client terminal in a database of the center system; and all the test data of the client terminal in the database of the test center system are analyzed to obtain the status of network channels at test time intervals. The method in the invention can be carried out in real time under a network running state, and has the advantages of simple test operation, high network test coverage rate and low test cost; and test results can show the real state of the network channels.

This invention significantly reduces the frequency of hydraulic failure in the analytical line of a capsule chemistry sample liquid analysis system which can occur when the reagents required for the specific analytical test have an imperfect merger with the sample aliquot reagent in the vanish zone of the analytical line. It has been found that the dynamic surface tension of the sample aliquot reagent and the analytical reagent influence the merging process. It has also been found that optimum merging of these reagent capsules in the vanish zone can be obtained when the dynamic surface tension of the sample aliquot reagent and analytical reagent is different.

The present invention belongs to the field of on-line monitoring technology of the insulation state of a sulfur hexafluoride (SF6) gas insulation electrical device, and specifically relates to a partial discharge decomposition simulation experiment method of a direct current gas insulation electrical device. The method mainly comprises a SF6 direct current PD decomposition experiment method and methods of pulse current detection and collection and analysis testing of discharge decomposition gas, etc. The method provided by the invention is simple, easy to grasp and convenient for popularization, is widely applicable to the simulation and monitoring of a SF6 gas insulation electrical device direct current PD, and provides a scientific and effective method for insulation state monitoring of a direct current gas insulation electrical device and the SP6 PD decomposition test and decomposition mechanism research.

The invention relates to a method for testing seven indicative PCBs (PCB28, PCB52, PCB101, PCB118, PCB138, PCB153 and PCB180) in food with high fat content simultaneously. The method comprises the following steps: using an organic solvent to conduct extraction, concentration and decreaming on a target object and conduct two times of purification on an extracting solution, forming a standard curve, analyzing the test condition, and conducting methodology investigation and practical sample testing on factors such as linearity, recovery rate, precision and detection limit of the seven indicative PCBs in different samples. The method does not need to equip expensive pretreatment equipment to remove fat in the sample and use column chromatography pretreatment process which is complex, low in efficiency and low in flux, has the advantages of being quick in testing speed, wide in adaptive substrate range, high in sensitivity, strong in selectivity, high in accuracy and the like, can meet detection requirements on the seven indicative PCBs in the sample with high fat content by a conventional laboratory, moreover can test the content of the seven indicative PCBs in the sample with high fat content at the same time, and has the characteristics of being simple, convenient, fast, accurate and the like.

The invention provides an LED automobile headlamp test case automatic generation method, which comprises the following steps: S1) establishing a standard test database pool, wherein the standard test database pool comprises a plurality of function test databases; S2) establishing a test template of each function test database; S3) inputting test requirement information; S4) generating a test case matrix; S5) automatically generating test configuration data according to the test case matrix; and S6) automatically generating test cases. The LED automobile headlamp test case automatic generation method can automatically analyze test requirements and judge test, and can automatically generate test environment configuration and test cases, thereby solving the problems of instability of test case design quality and difficult guarantee of consistency of the test results and the like, improving test case compiling efficiency and reducing product development period.

The invention discloses a 10 Gbps bit error analyzing instrument and aims to provide a bit error analyzing instrument which has low cost, simple and convenient operation and convenient carrying and issuitable for engineering field test. The 10 Gbps bit error analyzing instrument comprises an evaluation board and a single chip microcomputer of C8051 series, wherein the evaluation board can carry out communication with a PC, and a bit error test chip which is connected with equipment to be tested is arranged on the evaluation board; and the single chip microcomputer is used for carrying out communication with an upper PC and a lower test chip, and is provided with a USB interface which carries out communication with the PC and an I2C double line type serial bus which is connected with the bit error test chip to carry out communication and control. The bit error test chip provides sent bit flow and total amount of bit error to the PC through the single chip microcomputer, and the sent bit flow is obtained by test time recorded by the single chip microcomputer and appointed frequency output by the test chip. The invention has the advantages of convenience, rapidness and accurate bit error analysis test and is suitable for performance test of a 10 Gbps communication system.

The invention discloses a laser radar performance testing device, and the device comprises a target plate which is used for bearing laser emitted by a laser radar; a target plate bracket, wherein a telescopic clamp is arranged on the target plate bracket and the target plate bracket is used for fixing the target plate; a linear guide rail, wherein the target plate bracket is arranged on the linearguide rail and can slide along the linear guide rail; an optical platform which is arranged at one end of the linear guide rail and is used for fixing a tested radar; and a test machine which is usedfor analyzing the test data. In addition, the invention also discloses a method for testing the echo capability, the effective range finding range, the range finding precision, the horizontal angle resolution, the vertical field angle, the vertical angle resolution and the range finding value consistency of the laser radar by using the device. Through the laser radar testing device, the key performance parameters of the tested laser radar can be effectively evaluated and reflected.

The invention relates to a method for observing the dislocation type of a heteroepitaxial growth material of gallium nitride (GaN) and measuring the dislocation density. The method is characterized by directly observing the dislocation type of the surface of a gallium nitride epitaxial film by using etching of molten potassium hydroxide and a potassium hydroxide and magnesia eutectic mixture in combination with a scanning electron microscope and an atomic force microscope, analyzing and researching the characteristics and the distribution of dislocations of different types and calculating the dislocation density. The method is convenient and fast and is suitable for analytical testing of nitrides which grow through different processes. The characteristics of dislocations of different types in different nitride samples can be researched to obtain the distribution of various dislocations on the surface, and the densities and the total dislocation density of the dislocations of various types can be accurately calculated.

The invention provides a gas chromatography system for determining gas components in fluid inclusion, which adopts a modified gas chromatograph to extract trace gas from a small amount of samples (0.1g) in fluid inclusion for analysis with high sensitivity and good reproducibility. The content of H2, O2, N2, CO, CH4, CO2, H2O, C2H2, C2H6, and C3H8 can be measured through one sample injection and one bursting, and the analysis test efficiency is remarkably improved. Moreover, compared with conventional method, the invention is characterized in that not only the relative mol concentration of each component but also the absolute content can be determined, wherein the actual water amount can be combined with the liquid components in fluid inclusion to achieve the actual concentration of each ion in fluid inclusion, thus it is possible to provide more precise and direct data for the research on fluid inclusion.

The invention discloses a portable active hydraulic tester and a test method. A coarse filter of the tester is connected with a hydraulic pump, and the hydraulic pump is connected with a fine filter; the fine filter is connected with a normally-off two-position two-way electromagnetic directional valve, a pressure gauge switch and an electromagnetic relief valve; the normally-off two-position two-way electromagnetic directional valve is connected with a quick connector; the electromagnetic relief valve is connected with a two-position four-way electromagnetic directional valve, and the two-position four-way electromagnetic directional valve is connected with an oil return quick connector and a metering cylinder; the two-position four-way electromagnetic directional valve is connected with an oil tank; the metering cylinder is connected with a normally-on two-position two-way electromagnetic directional valve; and the normally-on two-position two-way electromagnetic directional valve is connected with the oil tank. The test method comprises the following steps: debugging the pressure and flow parameter calibrated by the tester; testing the pressure and flow parameters under the condition that tested hydraulic systems and components are removed respectively, drawing a coordinate graph and analyzing a test result; and completing the performance calibration of a new-manufactured hydraulic system and the performance testing of an online hydraulic system, listing the sequence of hydraulic component spare parts, and removing faults. The tester and the method have simple, convenient and fast operation.