30results about How to "Test method science" patented technology

The invention discloses a rapid deploying system and a method for a RFID antenna. In the invention, the RFID antenna is deployed by arranging a portal frame structure in an in and out storage environment and utilizing different space positions and angles in the portal frame structure, and the reading performances of the parameter combinations of one or more than one RFID antenna on RFID labels stuck to commodities in the application site environment are compared. In order to optimize the test process and shorten the test time, firstly, the method selects a representative test point through anorthogonal test to conduct a test, secondly, inspects fitting relation between an independent variable and a dependent variable through a zero-level repeated test, subsequently determines the best deploying position of the RFID antenna through a gradient search test and finally replaces a three degree of freedom motor in the test with a fixed support to complete RFID antenna deployment in the environment. The invention provides reliable guarantee for improving the RFID system performance, predicting the deploying effect and optimizing the deploying conditions under complex environmental conditions.

The invention provides an up-down stress bench test method for a plate spring. The bench test method comprises a stiffness characteristic test, a dynamic stiffness characteristic test and an up-down fatigue test. According to the test method provided by the invention, the up-down stress and the movement of a plate spring assembly on a vehicle are fully simulated, so that the performance of the plate spring assembly can fully meet the needs of the movement of the whole vehicle. The test method, including the stiffness characteristic test, the dynamic stiffness characteristic test and the up-down stress fatigue test, is scientific and precise, and the influence of torque generated by the tilting of the plate spring assembly on a bench is eliminated by the up-down stress bench structure of the plate spring, thereby ensuring the safety of the test process.

The invention discloses an oxygen index detection method and device. The detection method comprises an oxygen and nitrogen inputting and measuring device and a combustor, and is characterized by further comprising a temperature sensor and a temperature-time recording device, wherein the combustor is in a cylindrical combined structure and is divided into a lower cylinder, a transition area cylinder and an upper cylinder; the inner diameter of the lower cylinder is 110-120 mm and the inner diameter of the upper cylinder is 100-110 mm; the inner diameter of the transition area cylinder is gradually changed so that the transition area cylinder is connected with the upper cylinder and the lower cylinder in a transitional manner; a sample tank is fixedly arranged at the center of the transition area cylinder by a bracket; the temperature sensor is placed at the bottom of the outer wall of the sample tank; and an output end of the temperature sensor is connected with the temperature-time recording device. An oxygen index is detected by obtaining a combustion temperature-time relation curve. By the oxygen index detection method and device, disclosed by the invention, a sample to be detected without a fixed shape is conveniently detected and bases are supplied for researching and developing a new material.

The invention discloses a method for realizing a digital home network control technology. The method comprises the following steps: firstly, establishing a wireless sensor network experimental platform with equipment control capacity; then designing a priority classification optimization method according to the requirement of service classification; then designing a mobility support method based on state estimation aiming at the requirement on mobility; and finally, verifying the correctness of the optimized MAC (medium access control) protocol on a test bed. The invention provides a comprehensive and scientific test method for the digital home network test; and by using the test platform, the verification on the accuracy of the newly developed MAC optimization protocol can be well finished. The consistency and widespread adaptability of the platform provide a good practice platform for theoretical research.

The invention relates to a bench test device for vertical stress on a plate spring. The bench test device comprises supports, sliding plates, spring eye brackets, a plate spring assembly to be tested, a stress base plate, a base plate, a lower base plate, U-shaped bolts and a steel ball. By means of the bench test device for the vertical stress on the plate spring, the safety in the bench test process is guaranteed, and a stiffness characteristic test, a dynamic stiffness characteristic test and a fatigue test can be carried out; the influence of torque generated after inclination of the plate spring on the bench test is eliminated, distortion of the bench test is avoided, and the test method is scientific and precise; the vertical stress and movement of the plate spring are fully simulated, and the performance of the plate spring fully meets the demand of whole vehicle movement.

A portable uplink overspeed protection tester for a permanent magnet synchronous tractor elevator comprises a safety transformer with a tap. A primary coil of the transformer is connected with an electric supply 220 VAC power source. The number of secondary coils of the transformer is three, the first secondary coil outputs the 220 VAC voltage, the second secondary coil outputs the 110 VAC voltage, and the third secondary coil outputs the 24 VAC voltage. The portable uplink overspeed protection tester can be placed in a tool box, and field inspecting and carrying are convenient. Operation is easy, the tester only has one path of mains input, two paths of output and two signal lines, a bolt mode is adopted in power input line connection, a line clip mode is adopted in connection of all output lines and the signal lines, and during using, line connecting is easy and quick. An operation panel only has one main power switch, one starting / stopping button and the like, and operation is easy.

The invention discloses a testing method for safe performance of a power climbing rope, comprising a structure and quality test, a rope leather sliding test, a static force elongation ratio test and a dynamic performance test. The dynamic performance test comprises power elongation ratio, first falling impact force and falling times. Because the testing method is standard and scientific, and the testing data are correct and reliable, the security and the reliability of the power climbing rope are improved.

The invention relates to a method for detecting color fastness of fabric products to water. The method comprises the following steps of: respectively cutting to-be-detected fabric samples with the same specification and a standard adjacent fabric subjected to bleaching, dyeing and splashing processes and preparing a liquid soap reagent with concentration of 10g / L; fixing and overlapping the standard adjacent fabric on the to-be-detected fabric samples to obtain combined samples; immersing the combined samples in the liquid soap reagent with proper temperature and standing still for detecting; taking the combined samples out, cleaning and disassembling; drying the standard adjacent fabric and the to-be-detected samples; and grading and comparing the standard adjacent fabric and the to-be-detected fabric samples with a grey standard sample card to obtain color fastness to water. The detection process is simple and feasible, the detection method is scientific and the detection results are accurate; by comparison with the grey standard sample card, the discoloration and staining grades of the to-be-detected fabric samples can be determined accurately. The unification of the detection method of color fastness of fabric products to water is beneficial to the quality detection of fabric products according to the grades of color fastness to water detected by using a unified method.

The invention discloses a servo tool rest reliability testing system and a testing method using the system. The testing system includes a test bench body, a tested tool rest, an electro-hydraulic loading device, a hydraulic drive system, and the tested knife The frame is placed on the test bench body through the tool holder support mechanism. The tool holder under test has a cutter head and a motor placed inside the tool holder to drive the rotation of the cutter head. The simulated tool holder is installed on the cutter head. The electro-hydraulic loading device can The adjustable bracket is set on the base, and the base is fixed on the test bench body. The electro-hydraulic loading device includes a fixed plate placed on the adjustable bracket, and a hydraulic cylinder fixed on the fixed plate through the cage. One end of the hydraulic cylinder passes through the pipeline. It is connected with the hydraulic drive system, and the other end is connected with a pressure sensor and connected with the loading rod through an elastic mechanism. The system and method realize the reliability test and the precision decline test of the tool holder, expose the early failure of the tool holder and grasp the law of its precision decline.

The invention discloses a device and a method for airtightness detection of pressure bearing parts in a low-temperature environment. Since the low-temperature environment is directly established in a tested part, low establishment and maintenance cost of the low-temperature environment is realized; internal temperature and pressure of the tested part can be controlled to change quickly according to requirements, a practical operating environment of the tested pressure bearing part can be simulated, and limit indexes of low temperature resistance and pressure resistance of the tested pressure bearing part can be tested; airtightness detection is realized by detecting whether a refrigerating agent leaks or not. An automatic data acquisition module and an automatic control module of the device are capable of fully automatically operating for a long time under an unattended condition to acquire detection data in a long period, and rated service life indexes of the tested pressure bearing part can be accurately calculated out through long-period data analysis.

The invention relates to the research field of animal limb movement function and footprint analysis, and discloses a test device for analyzing the animal limb movement function and the footprint. Thetest device comprises tracks and soft ceramic layers applied on the bottom plates of the tracks, wherein the tracks consist of a straight flat segment, a turning segment, an upslope segment, a downslope segment and an upper step or lower step segment; lateral plates are arranged on both sides of the tracks; the lateral plates and the bottom plates are detachable; and particularly, the lateral plates can be made of one-way transparent glass to facilitate observation or photographing.

The invention discloses a test method for rapidly evaluating the anti-cracking performance of the sheath of a flame-retardant optical cable, which includes the following steps: 1) pretreatment: the flame-retardant optical cable to be tested is bent into a loop, and the loop is not larger than the outer diameter of the flame-retardant optical cable 25 times of that; keep the coiled flame-retardant optical cable at constant temperature and check whether the appearance is cracked; 2) simulated construction test: cool the flame-retardant optical cable after pretreatment for at least 3 hours; place the flame-retardant optical cable in one direction according to the set Wind a certain number of turns under tension to form a cable coil, and then reversely rotate the same number of turns to release the sample from the curled state; check whether the appearance is cracked; 3) Environmental test: the flame-retardant optical cable to be tested is bent into a loop, and the loop is not It is 30 times larger than the outer diameter of the flame-retardant optical cable; place the looped flame-retardant optical cable at a constant temperature and check whether the appearance is cracked. The invention discloses a new test method for quickly evaluating the anti-cracking performance of the sheath of a flame-retardant optical cable.