36results about How to "Realize Quantitative Testing" patented technology

The invention discloses a double-channel second-order nonlinear optical test system which is used for testing the second-order nonlinear optical effects of materials. The system comprises a laser light source, a photic sheet, a sample rack, a focusing lens, a spectroscope, a first optical filter, a first photomultiplier, a second optical filter, a second photomultiplier, a signal receiving analyzer and a photophobic box. According to the intensities of frequency-doubled lasers and non-frequency-doubled lasers contained in optical signals generated by exciting samples by lasers and the relative intensity relationship thereof, the laser-induced optical signal lights after respectively passing through the first optical filter and the second optical filter are subjected to two-channel exploration by virtue of the first and second photomultipliers, then through carrying out comparison and analysis on signals generated through two-channel exploration, the qualitative and quantitative test on the second-order nonlinear optical effects of powder-monocrystal containing samples is realized. The double-channel second-order nonlinear optical test system is simple in structure, light, practical, and easy to operate, has the advantages of wide waveband application range, high response sensitivity, and the like; and by using the system, the qualitative and quantitative test on the second-order nonlinear optical effects of sample materials can be effectively realized, therefore, the system has the advantages of broad application prospect and high application value.

The invention relates to a device for determining spraying blockage, which comprises a pressure pump used for extracting and pressurizing liquid in a medical box, a first pressure sensor connected with the pressure pump and used for determining the pressure of the liquid, a filter connected with the first pressure sensor and used for filtering the liquid, a second pressure sensor connected with the filter and used for determining the pressure of the liquid after being filtered, a first switch connected with the second pressure sensor, and a controller respectively connected with the pressure pump, the first pressure sensor, the second pressure sensor and the first switch and used for turning off the first switch after determining that the filter is blocked. The device for determining spraying blockage determines the blockage of the filter during a repeated and cyclic spraying test, indicates blockage alarm, records the pressure during the spraying process, and realizes quantitative test for blockage during the spraying of different chemical pesticides.

The invention provides a vacuum sealed valve leakage rate test system and method. The system consists of a first vacuum pump set and a second vacuum pump set, a leak detector, a vacuum chamber, a vacuum valve test cover, a pressure gauge, a standard leak hole, vacuum gauges, a gas source, and a first vacuum valve, a second vacuum valve, a third vacuum valve, a fourth vacuum valve, a fifth vacuum valve, a sixth vacuum valve, and a seventh vacuum valve, wherein the first vacuum pump set is connected to the vacuum chamber through the first vacuum valve, and the leak detector is connected to the vacuum chamber through the second vacuum valve. The vacuum chamber is connected to one ends of the vacuum gauges, the third vacuum valve and the fifth vacuum valve respectively. The other end of the fifth vacuum valve is connected to the standard leak hole. A tested vacuum valve is installed in the vacuum valve test cover, one end of the tested vacuum valve is connected to the other end of the third vacuum valve, and the other end is respectively connected to the fourth vacuum valve and the pressure gauge. The gas source is in connection with the vacuum valve test cover through the sixth vacuumvalve, and the second vacuum pump set is in connection with the vacuum valve test cover through the seventh vacuum valve respectively. The system and method provided by the invention realize quantitative test of the vacuum valve local leakage rate and total leakage rate, and greatly improves the measurement uncertainty of vacuum sealed valve leakage rate.

The invention discloses a method for quickly measuring the continuous distribution of crystal density of an energetic material. Crystal samples are naturally settled down and stabilized at different positions of a density gradient tube according to a density difference by using the density gradient tube, and the liquid densities of the crystal samples at different heights are calibrated and corrected through standard density floaters; then a light source generator and a light source detector which are mounted on two sides of the density gradient tube perform synchronous up-and-down scanning and data acquisition; a relation curve between the light transmittance and the height is calculated according to the light intensity differences of different heights and different regions, so that a continuous density distribution curve of the crystal samples is accurately calculated. Therefore, the density distribution situations of different crystal samples are judged. The method disclosed by the invention is used for quickly measuring the continuous distribution of the crystal density of the similar energetic materials, and the quantity of the samples under all density gradients is quantitatively expressed; the quantitative test on the density distribution of crystal particles is realized.

The invention discloses a hot-film gas extinguishing chemical concentration sensing module. By the adoption of a diffluence test method, microscale airflow passes through a bypass pipeline, inside which a temperature-sensitive film and a heating film are arranged; the microscale air and a gaseous mixture of the gas extinguishing chemical are heated by the heating film; as the gaseous mixture passes through the temperature-sensitive film, the temperature of the temperature-sensitive film changes and then the resistance value of the temperature-sensitive film changes; voltage value generated from the circuit is outputted, and through signal treatment, a digital signal and an analog signal are outputted. By controlling the flow of gases flowing through the temperature-sensitive film, the temperature change of the temperature-sensitive film is determined by the concentration of the gaseous mixture, and the electric signal generated is processed and outputted so as to obtain the concentration value of the gas extinguishing chemical. The invention can be widely applied in a gas extinguishing chemical concentration test system so as to establish a rapid high-precision gas extinguishing chemical concentration test system.

An aircraft front landing gear steering pressure relief valve moment tester includes a test aircraft body equipped with movable universal wheels and brakes, pressure relief valve moment test mountingtable, hydraulic circuit control system for testing, Pressure Sensing Testing System, A leak t line for an oil inlet line, As that aircraft front lan gear steering pressure release valve moment testemachine provided by the invention is small in overall outline size, therefore, the aircraft front landing gear steering pressure release valve moment testing machine is very flexible and convenient tooperate and low in cost, and therefore is convenient for t operation of the aircraft front landing gear pressure release valve. At that same time, the t work of the pressure relief valve of various types is easy to be realize, Thus, the test efficiency of the pressure relief valve of the aircraft is improved, the quantitative test is realized, and the safety of the performance test operation of the pressure relief valve of the aircraft landing gear is improved to the maximum extent, thereby reducing the maintenance time of the aircraft, increasing the flight time of the aircraft, and increasing the revenue for the airline.

The invention discloses a fuel cell stack cathode and anode liquid water tolerance testing device and method. The fuel cell stack cathode and anode liquid water tolerance testing device comprises a rate adjusting assembly and a voltage measuring instrument, an outlet of the rate adjusting assembly is communicated with a target flow channel of the to-be-measured fuel cell stack and is used for outputting liquid water to the target flow channel; the voltage measuring instrument is electrically connected with each single cell in the fuel cell stack to be measured and is used for measuring the voltage of each single cell; and when the index measured by the voltage measuring instrument reaches a cut-off point, the rate of outputting the liquid water by the rate adjusting assembly is the maximum tolerance rate of the liquid water of the fuel cell stack to be measured. According to the method, the liquid water is directly injected into the target flow channel, and the maximum tolerance rate of the liquid water of the fuel cell stack is obtained, so that the liquid water tolerance test result of the fuel cell stack is quantified, and guidance is provided for the design and structure optimization of the fuel cell stack.

The invention relates to an unsaturated bentonite corrosion test system and method in a multi-field coupling environment. The system comprises a multi-field sensing control triaxial corrosion device, a strain servo shaft stress loading unit, a temperature control gas phase control unit, a temperature control speed control liquid phase seepage control unit and a corrosion whole process real-time monitoring unit. Compared with the prior art, the corrosion behavior and development process of the unsaturated bentonite can be intuitively monitored and measured in real time, and the corrosion rule of the unsaturated bentonite in complex chemical, stress and temperature fields can be accurately obtained; an aqueous solution pressure and a gas pressure are respectively applied and controlled from the outside and the inside of a compacted bentonite sample in a triaxial corrosion chamber, and a temperature field similar to a high-level radioactive waste deep geological repository environment is applied in the sample, so that the influence of a multi-field coupling effect of the high-level radioactive waste deep geological repository environment on unsaturated bentonite corrosion is simulated; and the corrosion behavior and rule of unsaturated bentonite in a high-level radioactive waste deep geological repository environment are truly simulated.

The invention provides testing equipment, a testing method and a testing device based on an imaging system. The testing equipment comprises a light source and a testing card; the light source and the imaging system are arranged at an interval; the test card is arranged on the light emitting side of the light source, and the test card is provided with a light hole; the light emitted by the light source can penetrate through the light-transmitting hole to be collected by the imaging system, and the light-transmitting hole can form a light spot image in the imaging system; and the light spot image can be used for interpreting the blurring degree of the imaging system. According to the testing equipment based on the imaging system, the testing card with the light hole is arranged, and the light emitted by the light source can be collected by the imaging system through the light hole, so that the light hole can form the light spot image on the imaging system, and the light spot image can be used for quantitatively measuring the blurring degree of the imaging system.