759 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.

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 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.

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.

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.

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 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 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 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.

The invention discloses a test task scheduling method based on critical paths and tabu search, belonging to the field of automatic testing system parallel test task scheduling. The method comprises the following steps of: firstly determining and analyzing a test task, initializing parameter setting, subsequently determining an initial test task sequence by adopting a priority coding mode, finding an optimal test scheme selection set under the test task sequence by using a method of tabu combination critical path so as to find an optimal test task sequence and a corresponding test scheme selection set through iteration of multiple times. According to the method, an initial task sequence which meets the constraint is provided while the tabu search is applied to solve a test task scheduling problem, an adjacent domain search range of the tabu is simplified, the redundant adjacent domain search operation is reduced, and the operation efficiency and optimizing efficiency of the test task scheduling method are improved ultimately.

The invention discloses a cognitive ability assessment system and an assessment method thereof. The assessment system comprises a cloud server and a plurality of test units realizing data transmission with the cloud server, wherein the cloud server comprises a task configuration module, a testing personnel file management module, a data presentation module and a data storage module. The task configuration module configures a corresponding test task for each test unit aiming at operating requirements and test schemes of different positions, and publishes in each test unit through the cloud server. Each test unit comprises an account login module, an assessment analysis module and a front end test module. The assessment method comprises the steps of after testing personnel logs in, testing in the front end test module, and embedding an assessment method and a standard corresponding to each test task in each assessment analysis module so as to be used for calculating a test result; transmitting a test result into the data presentation module of the cloud server, counting a score of each test content, drawing a diagram, analyzing the test result, and generating a test report.

The invention relates to a gateway automatic test system of a CAN network, comprising a processor module; a CAN network module comprising two or more than two CAN bus systems for simulating the CAN network system of a vehicle; a gateway module to be tested for communication between the two or more than two CAN bus systems; a power supply control module for simulating the real vehicle ignition voltage change of the vehicle; and a switch control module for simulating the real vehicle ignition switching operation of the vehicle. The processor module is respectively connected to the CAN network module, the power supply control module and the switch control module; the CAN network module and the switch control module are connected to the gateway module to be tested; the processor module is used for selecting a test case so as to test the gateway module to be tested, analyzing a test result and outputting a test report. The gateway automatic test system of the CAN network of the invention is featured by simple and convenient operation, complete test, high test precision and high efficiency.

The invention discloses a chromatography method for detecting the SF6 decomposition products. A sample is fed into a set of chromatographic columns to separate the components in the sample, a set of valves is adopted to cut the components and separately control the components, a first PDD detector and a second PDD detector are adopted to analyze and test the separated components individually; wherein the chromatographic column set at least comprises six chromatographic columns: a Takey A column, a Takey B column, a Takey C column, a first Porapak Q column, a second Porapak Q column, and a 13X molecule sieve column; the valve set comprises at least five multi-way valves: a first valve, a second valve, a third valve, a fourth valve, and a fifth valve. The provided method can overall and precisely carry out analysis on SF6 decomposition products, so that the inner operation situation of SF6 gas insulation equipment can be precisely determined so as to guarantee the safe operation of electrical equipment.

The invention relates to a portable insulating oil gas content detection device and a sealing defect diagnosis method based on gas content; the portable insulating oil gas content detection device comprises a case with an upper cover on the case body; the case body internally comprises a gas source module, a chromatographic analysis system, a carrier gas cylinder, a standard gas cylinder and a chromatographic analysis workstation system; the gas source module provides hydrogen and air for the chromatographic analysis system; the chromatographic analysis system is used for completing oil-gas separation and chromatographic analysis of the insulating oil; the carrier gas cylinder and the standard gas cylinder are respectively used for providing carrier gas and standard gas for the chromatographic analysis system; and the chromatographic workstation system is used for realizing equipment sealing defect diagnosis based on gas content data after data acquisition and analysis. According to the invention, automatic calibration of gas component distribution coefficients in the insulating oil is achieved through the internal automatic degassing module, automatic analysis of the content and gas content of dissolved gas components in the oil is achieved, the test precision and accuracy are greatly improved, the detection device can be applied to live and continuous on-site online monitoring of laboratories and equipment, and multiple purposes are achieved through one machine.

The invention belongs to the technical field of mass spectrum analytical testing, and particularly relates to a method for conducting efficient and rapid analysis in an ion trap mass analyzer. According to the method, when ions enter an ion trap, a dipole voltage is utilized to conduct resonance extrusion on the ions, and the ion mass analysis working process is achieved. Particularly, the frequency of a digital radio frequency working voltage is scanned, working voltages of a front end cover electrode and a back end cover electrode of the ion trap mass analyzer are rapidly adjusted, four timing sequence phases which are needed in mass analysis conducted by conventional ion trap spectra are not needed, the mass analysis of the ions can be rapidly completed only by conducting the ion resonance extrusion phase, the analysis time of the whole ion trap mass spectrometer can be shortened, and the testing efficiency is improved. By means of the method for conducting the efficient and rapid analysis in the ion trap mass analyzer, additional hardware change is not needed, and the rapid analysis can be achieved efficiently only through software control.