36results about How to "Raise the level of testing" patented technology

The invention relates to the technical field of coal mining, and in particular relates to a testing device and a measuring method for the anchorage performance of a coal and rock mass in a coal mine tunnel. The testing device comprises a force applying device, a forcemeter, a first displacement sensor, a first anchor rod and a second anchor rod, wherein the first anchor rod and the second anchor rod are fixedly anchored on the coal and rock mass in the coal mine tunnel; the force applying device and the forcemeter are arranged on the first anchor rod; the force applying device is used for applying a drawing force on the first anchor rod; the forcemeter is used for detecting the magnitude of the drawing force of the force applying device to the first anchor rod; one end of the first displacement sensor is fixed on the first anchor rod while the other end of the first displacement sensor is fixed on the second anchor rod; and the first displacement sensor is used for detecting the displacement of the first anchor rod relative to the second anchor rod under the drawing force of the first anchor rod applied by the force applying device. The device and the method have the beneficial effects that a stably-positioned reference point is obtained in the coal mine tunnel, so that a relation curve between the drawing force and the displacement of the anchor rod can be obtained by measuring multiple groups of drawing forces and the displacements of the anchor rods on the basis of the reference point. Thus, the foundation for further understanding the anchorage performance of the coal and rock mass and carrying out the supporting design on the anchor rods is laid.

The invention discloses a virtual test system and test method for ship performance, and belongs to the technical field of ship performance tests. The virtual test system comprises a storing device, a tool device, a testing device and an operating platform, wherein the storing device and the tool device are positioned at the bottom layer, the test device is positioned at a supporting layer, and the operating platform is positioned at an application layer; and the test method comprises the following steps: the operating platform builds the sailing data model of a boat sailing in the waves and the environment data model of the sailing environment of the boat respectively according to the testing result of the test device, and builds the conceptual data model of a boat in actual sailing by combining the two simulation models. The technical scheme provided by the invention is that the building of the navigation performance virtual testing system truly reflects man-machine interaction when a ship sails, the testing level is improved, the testing period is shortened, the testing cost is lowered, the accuracy and instantaneity of the motion simulation are ensured, and the fidelity of the virtual testing is further improved..

The invention relates to a novel loading experiment device for a numerical control turntable, which comprises a workbench and an electric control cabinet. An X-axis box body and an angle rotating and measuring mechanism are arranged on the workbench; an X-axis linear motion pair is installed on the X-axis box body; the X-axis box body is connected with a Y-axis box body through a guide rail; a Y-axis linear motion pair is installed on the Y-axis box body; a Y-axis support plate I is connected with the Y-axis box body through a Y-axis linear motion pair; a hydraulic oil cylinder is installed on the Y-axis support plate, and Z-axis feeding is realized through the hydraulic oil cylinder; the hydraulic oil cylinder is connected with one end of a force sensor; the other end of the force sensor is connected with a loading connection rod; the loading connection rod is in contact with a measured turntable; and the force sensor is connected with the electric control cabinet through a line. The novel loading experiment device is suitable for numerical control turntables with various types and models and can also load at any position of the numerical control turntable to obtain more complete experimental data. The novel loading experiment device has the advantages of simplicity in operation and adjustment, accurate loading experiment results, and flexible and diversified test modes and methods.

The invention discloses a software development ability and testing ability analysis method and device. The analysis method includes: designing development ability evaluation tasks and testing ability evaluation tasks according to project requirements; acquiring development ability evaluation task completion information and test ability of the subject to be tested Evaluate the task completion information; calculate the development ability score of the testee according to the completion information of the development ability assessment task and calculate the test ability score of the testee according to the completion information of the test ability assessment task; calculate the Pearson correlation coefficient according to the development ability score and the test ability score , according to the Pearson correlation coefficient to analyze the development ability and testing ability of the testee. The present invention provides a software development ability and test ability analysis method and device to solve the problem that the prior art cannot convert the development code and test code into the corresponding ability and carry out correlation analysis, resulting in the inability to accurately analyze the development ability and test ability of the person to be tested. Technical issues of capacity.

The invention discloses a method and a sample frame for testing the heat retention of down loose fibers. According to the method, first, down loose fibers are pretreated, and a testing sample is prepared; heat retention rate of the down loose fiber sample is tested by using a planar heat retaining device, and a tested value of the down loose fibers is obtained through calculating. The sample frame comprises a bottom frame, four right-angle side rods and a cloth curtain. The bottom frame is in a shape of concentric squares. One end of each right-angle side rod is respectively fixed on one inner corner of the bottom frame. The dismountable cloth curtain is sleeved on the outer side of the four right-angle side rods from top to bottom. One end of the cloth curtain contacts the upper surface of the bottom frame. With the method, the testing of down loose fiber heat retention can be realized with simple technology and reliable data. The method assists in promoting the researches on heat retention of down and down products, and in promoting the testing level of the industry. The method has potential to be applied in the developments of down loose fiber retention testing method, testing standard, testing apparatus, and the like.

The invention discloses a design method for the anti-collision software test scene of the airborne anti-collision system in the system test. Step 1 obtains the composition and operation mode of the anti-collision system, and constructs a software system-level test environment; Step 2 decomposes the standard test scene description file. Input data and extract valid information; migrate the input information of the anti-collision software from the internal interface to the external interface according to the system function and internal and external interface information, so as to meet the software system-level test input requirements; construct the S-mode transponder DF message information , ground station UF message information and local machine information; Step 3 applies the test data constructed on the built software system test environment, utilizes the traffic / decision display and the warning loudspeaker to output the traffic decision warning result, and compares the result with the simulation output The results are compared to verify whether the standard test scenario can pass in the software system test. This method is based on the test scene description of the anti-collision software in the DO-185A standard, and improves the level of software testing.

The invention provides a multi-medium combined heat exchanger test bed. The multi-medium combined heat exchanger test bed comprises an intercooler test bed, and a water / oil heat exchanger test bed, wherein the intercooler test bed comprises an air heating system, an air circulation system, an intercooler test bed wind tunnel system, a specimen, a measurement instrument and pipelines; the water / oil heat exchanger test bed comprises a water circulation system, an oil circulation system, a heat supply system, a water / oil heat exchanger test bed wind tunnel system, a specimen, a measurement instrument and pipelines; and the intercooler test bed and the water / oil heat exchanger test bed are connected with each other through the pipeline and are controlled by a monitoring system. The multi-medium combined heat exchanger test bed can meet the requirement for performance testing of various types of heat exchangers, and can improve the single test mode of the original parts to the synchronous comprehensive test mode of the parts and the system, thereby further improving the design strength and the design level of heat radiation systems for the military special vehicles, other vehicles and engineering machines.

The invention discloses a simulation testing system and method for transformer substation relay protection. The simulation testing system comprises a computer control system, a data communication system and a tested device, wherein calculation and output are separated by arranging a calculation module on the computer control system and arranging a real-time output module on the data communication system, time marks are marked on data after the data are calculated through the calculation module so that the real-time output module can receive the calculated data with the time marks in advance and output the data to the tested device according to the time marks on time, and when a circuit breaker trip signal and a circuit breaker switching signal are received, the available time of the calculation module for calculating a new admittance matrix and calculating the data produced when the structure of the system suddenly changes can be greatly prolonged, the requirement for hardware performance is lowered, cost is reduced, and instantaneity is improved.

The invention discloses a method for screening standard model machines for a refrigerator compressor refrigeration capacity comparison test. The method comprises the following steps: selecting the number of refrigerator compressors of the same type, meeting refrigeration capacity requirements, of a manufacturer as preliminarily selected samples; connecting the preliminarily selected samples into a test refrigeration loop; in a set working condition, performing a stability test and a repeatability test; and selecting out refrigerator compressors with stability test data and repeatability test data meeting the requirements as the standard model machines for the refrigerator compressor refrigeration capacity comparison test. According to the method, the standard model machines for the refrigerator compressor refrigeration capacity comparison test are selected out by adopting the stability test and the repeatability test pioneered in test field, and a refrigerator compressor refrigeration capacity detection platform can be constructed between each refrigerator compressor manufacturing plant and a detection mechanism, so that the detection of the refrigerator compressor refrigeration capacity is standardized and normalized, the refrigeration capacity test uniformity of refrigerator compressor industries is improved, and the industrial exchange and platform construction are facilitated.