7results about How to "Realize online test" patented technology

The utility model provides a diaphragm air permeability value testing device which comprises a rack, an unwinding mechanism, a testing mechanism, an air supply mechanism and a winding mechanism, the unwinding mechanism is arranged on the rack and used for unwinding and conveying a diaphragm, the testing mechanism comprises testing clamping assemblies and a flow testing assembly, the testing clamping assemblies are arranged on the two surfaces of the diaphragm, and the flow testing assembly is arranged on the two surfaces of the diaphragm. The flow testing assembly is used for clamping the diaphragm, can be connected with the diaphragm in a sealed mode and is used for achieving circulation of airflow from one surface to the other surface in a clamped area of the diaphragm, and the flow testing assembly is used for monitoring the flow of the airflow passing through the flow testing assembly so that the air permeability of the diaphragm can be tested. The air supply mechanism is communicated with the testing mechanism and is used for providing the air flow for the testing mechanism, the winding mechanism is arranged on the rack and is used for winding and forming the diaphragm, the testing mechanism is arranged between the unwinding mechanism and the winding mechanism, and the testing efficiency and accuracy of the air permeability of the diaphragm can be improved.

The invention provides a time frequency remote measurement and transmission terminal and method for an electric energy metering device, and the terminal comprises a provincial time frequency reference standard module which provides a provincial time frequency reference standard; the prefecture-level common-view device traces the provincial-level time frequency reference standard to the local by adopting a satellite common-view method through a network; transmitting the local time frequency reference standard quantity to a time frequency remote quantity transmission terminal through an optical fiber; and the time frequency remote quantity transmission terminal generates a standard time frequency reference signal required by the electric energy metering device, and transmits the standard time frequency reference signal to the electric energy metering device through a cable. The technical problems that prefecture-level time service equipment does not have the time service capacity, calibration consumes a large amount of manpower and material resources, the clock source loss rate is high, field calibration is interfered by the environment, and consequently the detection precision of an electric energy metering device is poor are solved.

The present invention discloses a measuring device for microelectronic components and a measuring method thereof, comprising a carrier board, a needle bed assembly and a signal conversion assembly, wherein the needle bed assembly is located between the carrier board and the signal conversion assembly and acts as an intermediate layer, the carrier board is provided with acupuncture points, the number of which is selected according to the positioning size of the microelectronic component to be measured, the needle bed assembly comprises a probe and a probe positioning tool, the probe positioning tool is provided with a probe positioning hole and a needle bed positioning hole, the probe positioning hole is used for axial and radial positioning of the probe, the present invention can be generally used in high temperature, low temperature, high pressure, vacuum and other environments according to the process requirements of microelectronic components, and can be generally used in all scenarios requiring small spacing and multi-channel online electrical connection.

The present invention belongs to the technical field of determination of carbon isotope composition of methane in gas, and specifically discloses an online continuous flow extraction device for methane in gas and a carbon isotope composition analysis method, the device comprises a first six-way valve, a plurality of helium inlets connected to the first six-way valve, a second six-way valve connected to the first six-way valve, a helium inlet connected to the second six-way valve, a carbon dioxide collection pipe connected to the second six-way valve, a single-opening quartz tube connected to the second six-way valve, and a stable isotope mass spectrometer connected to the second six-way valve, the method is as follows: step 1, gas sample loading; step 2, back-blowing to degas, exhaust the air in the pipes at both ends of the gas collection pipe; step 3, oxidation, purification and collection of methane in the gas; step 4, carbon dioxide sublimation injection; step 5, methane carbon isotope determination. The present invention solves the problems of excessive consumption of sample preparation gas for offline pretreatment, cumbersome operation process and low efficiency.

The invention discloses a circuit breaker stroke curve test system and method, the test system comprises a stable light source, an emission collimator, a circuit breaker moving part, a receiving collimator, an optical power acquisition loop and a processing unit, the output of the stable light source is connected to the tail part of the emission collimator through an optical fiber, the emission collimator and the receiving collimator are oppositely arranged, and the optical power acquisition loop is connected with the processing unit. A gap for movement of a moving part of the circuit breaker is reserved between the transmitting collimator and the receiving collimator; the tail part of the receiving collimator is connected to an optical power acquisition loop through an optical fiber; and the optical power acquisition loop transmits data to a processing unit. According to the test system and method, the online test of the state of the circuit breaker can be realized. The sensor is not mechanically or electrically connected with a circuit breaker operating mechanism, and has the advantages of high sampling rate, strong anti-interference capability, small installation size and the like.

The present invention belongs to the field of fuel cells, and specifically relates to a test system and a test method for obtaining the polarization loss distribution of a proton exchange membrane fuel cell, comprising the following steps: obtaining the voltage, temperature, current density and high-frequency impedance at different positions of the fuel cell reaction zone and the humidity and pressure on the anode and cathode sides through a multifunctional test board module; calculating the reversible electromotive force and activation polarization loss at different positions of the fuel cell according to the obtained temperature, humidity, pressure and current density; obtaining the ohmic polarization loss at different positions of the fuel cell according to the obtained current density and high-frequency impedance; calculating the mass transfer polarization loss at different positions of the fuel cell according to the obtained voltage, reversible electromotive force, activation polarization loss and ohmic polarization loss. Compared with the prior art, the present invention solves the problem that the distribution of activation polarization loss, ohmic polarization loss and mass transfer polarization loss cannot be obtained in the prior art.

The application relates to an error injection method and device, computer equipment and a readable storage medium. The method comprises the following steps: determining an error injection requirement based on a configuration operation, the configuration operation being used for configuring at least one or a combination of a target logical address, an error type and a trigger condition; converting the error injection requirement into an error injection command, storing the error injection command into a content addressable memory (CAM) for scheduling, and obtaining a scheduling result; and according to the scheduling result, issuing the error injection command and a dynamic random access memory (DRAM) physical address to a corresponding DRAM control unit to execute the error injection through the DRAM control unit. Thus, the system can remain in a normal operation state during the entire error injection process, without entering a special test mode, ensuring the normal execution of a refresh operation, and the interaction between AXI internal and address mapping modules is reused, without affecting business continuity, so that the universality is enhanced.