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728 results about "Test flow" patented technology

Definition A urine flow test evaluates the speed of urination, or amount voided per second, and the total time of urination. A urine flow test is utilized to determine bladder function abnormalities, including a narrowed or obstructed urethra (the outflow passage from the bladder) and a weakened bladder muscle (detrusor).

Method for testing flow conductivity of self-supported crack in riverfrac treatment

The invention relates to a method for testing flow conductivity of self-supported cracks in riverfrac treatment. The method comprises the steps of: manufacturing a core test piece which satisfy closed state of the crack wall surface after pressure relief return of riverfrac treatment, drilling a phi 50*100 mm cylindrical test piece, enabling the cylindrical test piece to be orthogonal with a pre-formed scratch, splitting the pre-formed scratch to manufacture a tensile fracture type crack wall surface, dislocating the crack wall surface, smoothly grinding the end surface of the core test pieceto obtain a non-proppant non-engaged crack wall surface combination; then testing the flow conductivity of the crack, putting the manufactured core test piece into a core clamping system, simulating formation stress and temperature, setting and sending a control instruction, enabling each system to work and feed back signals, and finally, collecting the test results and calculating the flow conductivity of self-supported crack in the riverfrac treatment. The method in the invention can really reflect the tensile fracture and shear slip process of the riverfrac treatment, and reduce the process to a pressure and temperature environment under the ground to test the flow conductivity; and the test method is achievable.
Owner:NORTHEAST GASOLINEEUM UNIV

Two-dimensional reconstruction light distribution optimization method based on laser absorption spectrum technology

ActiveCN103884663AImprove utilization efficiencyImprove the quality of reconstruction resultsThermometers using physical/chemical changesColor/spectral properties measurementsDistribution matrixAdaptive simulated annealing
The invention provides a light distribution optimization method for two-dimensional reconstruction of a combustion flow field by combining a tunable semiconductor laser absorption spectrum technology and a computed tomography technology. The method comprises the following steps: a light matrix calculation step, a combustion flow field reconstruction step and a light distribution optimization step and particularly comprises the following steps: step 1, discretizing a region to be tested; pre-setting a light space distribution manner and calculating the length of light penetrating through the discretized region to obtain a light distribution matrix; step 2, selecting a suitable absorption spectrum line and calculating a light projection result of an initial gas distribution model; reconstructing temperatures and concentrations of the tested flow field by using an algebra iterative algorithm and calculating a reconstruction error and a standard deviation; and step 3, wholly searching by using a self-adaption simulated annealing method to obtain an optimal light distribution range and partially searching by using a sequential quadratic programming method to obtain optimal light distribution.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV

Diagenesis simulation experimental apparatus and method

The invention relates to a diagenesis simulation experimental apparatus and method. The diagenesis simulation experimental apparatus comprises a rock core clamping mechanism, a heating mechanism, a gas porosity and permeability measurement process, a liquid injection and liquid permeability test process, an automatic continuous outlet-fluid metering and sampling mechanism, a burden pressure boost control mechanism, a fluid physical property detection mechanism and a data acquisition-calculation and automatic control mechanism, wherein, the inlet and outlet of the rock core clamping mechanism are respectively connected with the gas porosity and permeability measurement process and the liquid injection and liquid permeability test process; the heating mechanism is sheathed at the periphery of the rock core clamping mechanism, and the burden pressure injection port of the rock core clamping mechanism is connected with the burden pressure boost control mechanism; the outlet of the liquid injection and liquid permeability test process is connected on the automatic continuous outlet-fluid metering and sampling mechanism; the fluid physical property detection mechanism detects a fluid sample of the automatic continuous outlet-fluid metering and sampling mechanism; and the data acquisition-calculation and automatic control mechanism acquires, records, stores and calculates temperature, pressure and flow rate in an experiment and meanwhile controls operation of the corresponding solenoid valve and the automatic continuous outlet-fluid metering and sampling mechanism according to the experimental status.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Aerospace vehicle integration performance verification system based on data sharing

An aerospace vehicle integration performance verification system based on data sharing is divided into a preposition equipment area and a rear end equipment area. The rear end equipment area is divided into a test service area and an operation application area. The preposition equipment area, the test service area and the operation application area are connected through using an optical fiber network. The preposition equipment area is an information interaction link of an aircraft and the rear end equipment area and is formed by subsystem test equipment. The test service area is a core area of the aerospace vehicle integration performance verification system and comprises a test processing server, a data subscription server, a data interpretation server, a database server, a health monitoring and assessment server and a disk array. The operation application area is formed by a control operation platform and a data monitoring terminal. Through using various kinds of services provided by the test service area, functions of remote control/control instruction sending, parameter interpretation and health evaluation rule editing, test flow bookbinding, data display, data query, data playback and test report generation are realized.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH

Test method and test system of engine controller software diagnosis module

The invention discloses a test method of an engine controller software diagnosis module on the basis of the USB-CAN (Universal Serial Bus-Controller Area Network) network communication equipment and the automobile diagnosis instruction set tool of the NI Company (National Instruments). The method comprises the following steps: designing an Excel-based diagnosis software test template file; according to the test template, compiling a diagnosis software test case which conforms to a test template format; obtaining the test template file input by a user, analyzing the test template appointed by the user, and generating a data structure used for describing a test template test case and controlling a test process; controlling a test flow; analyzing a simulation working condition; generating a diagnosis communication data frame; receiving and transmitting the communication data frame; judging a test result; realizing interaction with the working condition environment of an engine controller; and outputting a test report and a log file. The invention also discloses a test system of the engine controller software diagnosis module on the basis of the USB-CAN network communication equipment and the automobile diagnosis instruction set tool of the NI Company. The test method can improve the test efficiency and the test quality of the test work of the engine controller software diagnosis module.
Owner:LIANCHUANG AUTOMOBILE ELECTRONICS

DSPACE-based motor control hardware-in-the-loop automated test system and method

The invention discloses a dSPACE-based motor control hardware-in-the-loop automatic test system and method. The system includes a to-be-tested object motor controller, a hardware-in-the-loop simulation platform and an automatic test system platform; the hardware-in-loop simulation platform includes a real-time processor, an IO board card, test management software, and the like, wherein the real-time processor is connected with the to-be-tested motor controller through the IO board card and operates a virtual motor model to simulate the operating state of a motor; and the automatic test platform includes a keyword driving module, a test case editing module, a Robot Framework automatic test framework, a test execution module, and a test report output module. With the dSPACE-based motor control hardware-in-the-loop automatic test system and method of the invention adopted, the logic function of the to-be-tested motor controller can be tested automatically; the strategy response of fault injection can be verified; the startup of the automatic test system can be controlled through command line statements; a test report can be automatically generated; automatic testing can be realized ina real sense; and a sound test process of an enterprise can be established. The automatic test system can be conveniently integrated with an existing open-source Jenkins regression test system.
Owner:HEFEI JUYI POWER SYST CO LTD

Mobile phone multi-station parallel testing device and realization method thereof

The present invention discloses a mobile phone multi-station parallel testing device and a realization method thereof, and the problems of complexity and low efficiency of existing mobile phone testing equipment are solved. The device comprises a sound insulation box body with a cabinet door, a multi-station parallel testing mechanism arranged in the sound insulation box body, an industrial control machine and a control circuit board. The multi-station parallel testing mechanism comprises a multi-station mobile phone carrier for placing multiple mobile phones, and testing stations fixed in the sound insulation box body and are corresponding to the positions of the multi-station mobile phone carrier for placing mobile phone, and at least two testing stations in the testing stations are used for testing different projects. The multi-station parallel testing mechanism also comprises a central rotation mechanism for rotating the multi-station mobile phone carrier such that the mobile phones placed on the multi-station mobile phone carrier are moved to another station from a current testing station. According to the mobile phone multi-station parallel testing device and the realization method, through time division multiplexing and multi-task parallel test, the working efficiency is four times of a traditional testing process in the condition of not adding hardware resources.
Owner:CHENGDU BOTOVISION TECH CO LTD
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