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656results about How to "Improve comparability" patented technology

Automatic testing method and system for mobile phone software

The present invention relates to the automatic test method and the system of mobile phone software. The method mainly includes five steps; firstly, the keystroke operation of a mobile phone is simulated by a program-controlled switching switch; secondly, communication between a base station and the mobile phone is simulated by a comprehensive mobile phone tester; thirdly, the images of the display screen of the mobile phone are real-timely collected by a camera; fourthly, according to a test task, an industrial control computer controls the unified operation of the program-controlled switching switch and the comprehensive mobile phone tester, collects information coming from the serial port of the mobile phone and the camera-collected real-time images of the display screen of the mobile phone and compares the collected real-time images with corresponding preset template images; fifthly, according to the information coming from the serial port of the mobile phone and the comparison result of the images, the industrial control computer judges the operation state of the mobile phone software. The present invention can accurately simulate the process in which a person operates a mobile phone, so the test result is more accurate. Moreover, the present invention can increase the test efficiency and ensure the comprehensive traversal of test cases.
Owner:LENOVO MOBILE COMM TECH

Device and method for simultaneously testing permeability of compact rocks under transient state and steady state

The invention relates to a device and a method for simultaneously testing the permeability of compact rocks under transient state and steady state, and belongs to the fields of rock engineering and unconventional oil and gas reservoir engineering. The testing device for simultaneously testing the permeability of the compact rocks under the transient state and the steady state comprises a three-shaft pressure chamber, a bias pressure control system, a confining pressure control system, an upper end permeating system, a lower end permeating system, a vacuum pumping system, a constant temperature system and a data controlling and collecting system. The method for simultaneously testing the permeability of the compact rocks under the transient state and the steady state comprises the following steps: demarcating the reference volume, providing the confining pressure and bias pressure temperature environment for a sample, and testing the permeability under the transient state and the permeability under the steady state. For the device and the method, the practical bias pressure, back pressure and constant temperature testing environment conforming to the engineering is provided, the fluctuation error of the temperature can be controlled within -0.1 DEG C to +0.1 DEG C, the volume error of the gas can be controlled within 0.3%, and the error of the injected pressure can be controlled within 0.5%. The test of the permeability under the transient state in constant pressure and constant volume ways can be simultaneously realized; when the permeability is tested in the constant volume way, the volume of a reference container can be adjusted according to the volume of a pore.
Owner:NORTHEASTERN UNIV

Fatigue testing machine applied to tension test piece and method thereof

InactiveCN101957290AMaximum average displacementMaximum peak displacementMaterial strength using tensile/compressive forcesMechanical componentsPull force
The invention discloses a fatigue testing machine applied to a tension test piece. The fatigue testing machine is mainly used for a tensile test and a tensile fatigue test for mechanical components. The testing machine comprises a fatigue force application mechanism, a pretightening force mechanism, a straightening roller mechanism, a test fixing frame, an auxiliary mechanism and a control system. A power system of the fatigue testing machine comprises the fatigue force application mechanism and the pretightening force mechanism; the tensile force output by the power system is redirected by the straightening roller mechanism and is transmitted to the tension test piece; and the fatigue force application mechanism, the pretightening force mechanism, the straightening roller mechanism and the auxiliary mechanism of the fatigue testing machine are arranged on the test fixing frame. The fatigue testing machine has the advantages of adopting hybrid pneumatic and electric power as the power system of the fatigue testing machine, mastering numerous parameters including the maximum average displacement, the minimum average displacement, peak displacement, the maximum average tension, minimum average tension, minimum fatigue tension, frequency, accumulated test times, accumulated test time and the like, and providing a basis for optimization design of the tension test piece.
Owner:ZHEJIANG UNIV

Estimation method of total nitrogen content in crop canopy leaf

The invention discloses an estimation method of total nitrogen content in a crop canopy leaf, and relates to the technical field of spectrum non-destructive detection of biochemical components in a crop. The method comprises the following steps of: S1: determining hyperspectral data within the wave band range of 400nm-760nm of a crop canopy, calculating the spectral reflectance of the crop canopyand obtaining a spectral reflectance curve of the crop canopy; S2: calculating the relative spectral reflectance of the crop canopy by virtue of the spectral reflectance of the crop canopy and obtaining a relative spectral reflectance curve of the crop canopy; S3: respectively performing linear fitting on the relative spectral reflectance curves of two characteristic wave bands at 400nm-500nm and680nm-760nm in the relative spectral reflectance curve of the crop canopy and calculating the slopes of the two relative spectral reflectance curves; and S4: establishing an estimation model of the total nitrogen content in the crop canopy leaf by virtue of the ratio of the slopes of the relative spectral reflectance curves of the two characteristic wave bands at 680nm-760nm and 400nm-500nm so asto realize estimation of the total nitrogen content in the crop canopy leaf. By adopting the estimation method, the estimation model of the biochemical components in crop nitrogen can be established,and the model has strong expandability and high stability.
Owner:BEIJING RES CENT FOR INFORMATION TECH & AGRI

Ultrasonic, vortex and EMAT integrated lossless thickness tester and method thereof

The invention relates to an ultrasonic, vortex and EMAT integrated lossless thickness tester and a method thereof. The ultrasonic, vortex and EMAT integrated lossless thickness tester comprises an excitation module, a receiving pre-processing module, an analog switch, an A/D converter, a self-checking module, an MCU, a CPU module, a power supply module and a CPU periphery display storage part, wherein the excitation module is connected with the receiving pre-processing module, the receiving pre-processing module is connected with the analog switch, the analog switch is connected with the A/D converter, the A/D converter is connected with the MCU, the self-checking module is connected with the MCU, and the excitation module comprises an ultrasonic excitation module, a vortex excitation module and an EMAT excitation module; the receiving pre-processing module comprises an ultrasonic receiving pre-processing module, a vortex receiving pre-processing module and an EMAT receiving pre-processing module. The comparability of a measurement result is increased through the integration of the ultrasonic, the vertex and the EMAT, the misjudgment rate caused by measurement through a single method is reduced, and meanwhile the limitation of measurement through the single method is overcome.
Owner:NAVAL UNIV OF ENG PLA

Cereal grade analyzer

A device applied to the corn quality grade detecting, especially applied to imports and exports , the department of store and transportation , purchase, detect and production ,to detect the moisture content etc., bulk density and quality grade of corn such as maize and wheat, including moisture detect element, weighing element, volume measure element , vibration transport element, charging hopper , outer covering , computer data handling element etc. Its characteristic is that transporting the material waiting for detecting to volume measure element by using mini-type vibration transport device equably, ascertain the quality grade of the corn according to the real bulk density and moisture content of the corn entering volume measure element. Putting the material waiting for measuring into a charging hopper first, transducing the moisture content and temperature of the material by interdigited capacitor counter electrode in the inner side of charging hopper's back, the measure result is transmitted to the computer data handle element by the highway; The tiny vibrator works to make the silo resonating under the shaking excitation , the material in charging hopper drop into capacity cups equably from the silo and the take-up pan, close the mains switch after the capacity cups is full of material, inserting the flashboard into the slot under the take-up pan, taking away the unnecessary material lightly from the take-up pan, the slot and the pan; After the electronic scale is stable, reading the quality and the bulk density of the material waiting for measuring from the electron digital display, transmitting the result of the quality and the bulk density to the computer data handling element by the highway at same time; Finally, the computer data handling element decides the grade of the corn according to national standard GB1353 , GB1351, and the information such as moisture content , the temperature , the bulk density.
Owner:CHANGCHUN JIDA SCI INSTR EQUIP

Multi-source vacuum evaporation device having multi-layer radial type evaporation source distribution structure

The invention relates to a multiple-source vacuum coating device of a multiple-layer radiating type evaporator source distribution structure, and an operating mode of a substrate during the filming process. The system takes a medial axle of a filming vacuum chamber as a center, and effectively arranges more evaporator sources by adopting a two-layer or multiple-layer outward radiating evaporator source distribution method on the identical horizontal plane, to satisfy the requirements of the multiple-source in the multiple-layer part structure; simultaneously, the metal evaporator source is positioned at the position approximately vertical to a coating specimen stage, to remove the shadow effect generated during the metal costing process; the rotation of the substrate during the evaporating process, and the use of an independent small baffle plate and an masking plate of each sample in the sample base frame are matched, the uniform film manufacture of the larger-sized substrate not only can be realized, the preparation of a plurality of samples and a plurality of structures in the identical vacuum process but also can be realized, and the efficiency and the comparability of the result is improved; further, the multiple-layer distributing source structure can effectively utilize the space, the volume of the volume chamber body is greatly reduced under the condition of identical evaporating amount.
Owner:NANJING FANGYUAN GLOBAL DISPLAY TECH

Nucleic acid aptamer fluorescence test strip, method for preparing same and application of nucleic acid aptamer fluorescence test strip

ActiveCN107796938AImprove stabilityAvoid Affinity InconsistenciesMaterial analysisAptamerFluorescein
The invention provides a nucleic acid aptamer fluorescence test strip, a method for preparing the same and application of the nucleic acid aptamer fluorescence test strip, and relates to the technicalfield of biological detection. The nucleic acid aptamer fluorescence test strip comprises a bottom plate, a sample pad, a nanometer material pad, a reaction film and a water absorption pad. The reaction film is provided with a detection line, and the detection line is arranged at the end, which is close to the nanometer material pad, of the reaction film; nucleic acid aptamer with fluorescein labels and / or nucleic acid aptamer with fluorescence labels and linker sequences and free fluorescein are attached to the nanometer material pad, and complementary strains of nucleic acid aptamer or complementary strains of linker sequences of nucleic acid aptamer are fixed to the detection line. The method for preparing the nucleic acid aptamer fluorescence test strip includes sequentially adheringthe sample pad, the nanometer material pad, the reaction film and the water absorption pad on the same side of the bottom plate. The nucleic acid aptamer fluorescence test strip, the method and the application have the advantages that the nucleic acid aptamer fluorescence test strip is simple in structure, sensitive in detection and high in accuracy; the method is easy to implement and high in flexibility.
Owner:INST OF QUALITY STANDARD & TESTING TECH FOR AGRO PROD OF CAAS
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