17results about How to "Tested and reliable" patented technology

The invention relates to a method for testing and calibrating sensitivity directivity of a Fabry-Perot sensor in transformer oil. According to the method, sensitivity response values under different conditions are obtained by adjusting the distance and the angle between the Fabry-Perot sensor and a sound source. The testing step comprises the steps of setting an initial frequency and a spacing, adjusting an angle and a distance, recording response values under various conditions, and drawing a sensor sensitivity graph through normalization calculation. According to the calibration method, the standard microphone is adopted for comparison test, and the attenuation coefficient is combined for calibration, so that the sound pressure sensitivity accuracy of the Fabry-Perot sensor is ensured. The invention provides an efficient and reliable test and calibration scheme, the application effect of the Fabry-Perot sensor in the transformer oil can be remarkably improved, the accuracy is high, and the method is suitable for a complex environment.

The invention discloses a tool for testing the working capability of vehicle activated carbon powder. The tool comprises a hollow tool shell, the tool shell comprises a front shell and a rear shell which are distributed left and right and connected with each other; a gas inlet, a gas rectifier, gas inlet filter cloth, a carbon powder section, gas outlet filter cloth, a spring bracket, a spring and a gas outlet are sequentially arranged in an inner cavity of the tool shell from left to right; and the air inlet and the air outlet are respectively communicated with an air outlet pipeline and an air inlet pipeline of external test equipment. The tool for testing the working capacity of the vehicle activated carbon powder is used for testing the working capacity of the vehicle activated carbon powder, is scientific in design, can accurately and reliably test the adsorption capacity of the vehicle activated carbon powder to test gas, and ensures the test precision.

The utility model provides a kind of high-temperature-resistant flexible material performance test device, the device includes support frame, test component, burn hot flow component and pressure simulation component, test component is installed on support frame, burn hot flow component is connected in support frame below test component;Test component includes test piece mounting plate and high-temperature-resistant flexible material installed in test piece mounting plate, test piece mounting plate is connected on first support beam and can be moved to set position along first support beam;Burn hot flow component is connected on first support beam, and it is aligned high-temperature-resistant flexible material in test process;Pressure simulation component is arranged above high-temperature-resistant flexible material and can contact or separate with high-temperature-resistant flexible material.In high-temperature-resistant flexible material performance test device, through burn hot flow component and pressure simulation component, the simulation of heat / environment of force that high-temperature-resistant flexible material bears is realized simultaneously, so as to be able to simultaneously examine the heat insulation performance, bearing capacity and anti-scour performance of flexible heat-proof skirt.

A urine test kit includes a container configured to contain urine; a paper strip guide including a groove and a paper strip which is formed in the groove and whose color is changed by the urine; and an air pump configured to enable the urine to flow to the paper strip. Wherein the paper strip guide is attached to one surface of the container to form a flow path between the groove in the paper strip guide and the one surface of the container.

The utility model discloses a high-speed radio frequency performance testing device of an optical transceiver, which comprises a hold-down mechanism and a testing mechanism, the testing mechanism comprises a PCB, an FPC positioning block, an anisotropic conductive film and a Pogo pin probe, one side of the PCB is provided with the FPC positioning block, and the FPC positioning block is provided with a positioning groove corresponding to an FPC of the optical transceiver; a metal pattern layer is arranged on the PCB corresponding to a golden finger at the tail end of the FPC, and an anisotropic conductive film covers the metal pattern layer; the PCB is provided with a Pogo pin probe corresponding to the FPC bonding pad, and the Pogo pin probe is used for achieving connection between the FPC bonding pad and a direct current wire. The hold-down mechanism comprises a lifting mechanism and a pressure head, and the lifting mechanism is used for driving the pressure head to hold down the FPC of the optical transceiver inside the positioning groove. According to the utility model, the radio frequency performance test of the optical transceiver with the FPC is realized, and the reliability is better.

The application discloses a kind of flexible multifunctional detection rack, including rack main body, the upper end of rack main body is positioned and installed with pedestal, the front end of pedestal is provided with first display and second display, test table is installed on rack main body, jig quick-change positioning device is arranged in the middle of test table, printer is installed in the side of test table, controller is installed in the front end of test table, flexible electrical control system is positioned in the inside of rack main body, cabinet is arranged in the inside of rack main body in front position, ammeter, voltmeter and industrial computer are arranged in the inside of cabinet.The flexible multifunctional detection rack can accurately and reliably test various products produced by it to ensure the accuracy and stability of the products in various actual application scenarios, which not only can improve the product quality and market competitiveness of enterprises, but also can provide more accurate and reliable products for users.

The utility model relates to a kind of super space-saving pressure-resistant unit tooling, including the upper end insulator, multiple middle insulators and lower end insulator sequentially arranged from top to bottom, the upper end insulator is connected with its adjacent middle insulator by front end cylinder, and the contact upper end of upper end insulator is equipped with long conductor, and the contact of upper end insulator is connected with the contact of its adjacent middle insulator by long conductive spring;The lower end insulator is connected with its adjacent middle insulator, and the contact of adjacent two middle insulators is connected with unit conductive spring by unit cylinder between the lower end insulator and its adjacent middle insulator;The bottom of lower end insulator is connected with end cylinder, and inflation port is equipped on the front end cylinder and end cylinder.The utility model is suitable for the pressure-resistant, partial discharge test of epoxy pouring insulator in space limited environment, can be super space-saving, improve test efficiency.

This application proposes a chip storage area testing method, apparatus, device, and computer storage medium. The chip storage area testing method includes: obtaining the address of a target area in the DRAM chip under test used to store a target test program; loading an initial test program into the SRAM chip in the test system SoC, and calling the initial test program to test the target area according to the address; if the target area test passes, testing the areas of the DRAM chip under test other than the target area according to the target test program and the target area. Through the above chip storage area testing method, the detection blind spot of the DRAM chip under test is eliminated, and reliable testing of the entire physical memory space, i.e., all storage areas, of the DRAM chip under test is achieved.

The application discloses a test-bed electrical connection structure for reducing coupling effect of weak force test environment, which comprises a frame, a frame fixed base plate component fixed on the frame, a rotary fixed base plate component arranged below the frame fixed base plate component, and a rotating shaft connecting the frame fixed base plate component and the rotary fixed base plate component. A pendulum body is fixed on the rotary fixed base plate component, and a measured propeller is arranged at the bottom end of the pendulum body. The application weakens the influence of the conducting wire, the microwave conducting wire and the air pipe on the rigidity and temperature coefficient of the test bed.

The present application relates to a kind of SAR satellite vacuum thermal test method based on phased array feed system, first, passive reflector antenna is removed and is verified separately, realizes system decoupling.Phased array feed thermal test system and satellite body thermal test system are constructed, and two are physically isolated in same vacuum environment simulator by cold plate, to realize the parallel test of load and platform.Based on the size of phased array feed, the size of wave-absorbing box containing silicon carbide sharp cone wave-absorbing material is determined;Based on the size of satellite body, the size of its infrared cage is determined;Further, the size of cold plate is determined and appropriate vacuum tank is selected;Finally, the synchronous test of two systems is realized through cable connection.The present application significantly shortens the test cycle, reduces cost and risk through parallel test architecture, and ensures the authenticity and effectiveness of the test through accurate size chain design and independent thermal environment control, providing an efficient and reliable solution for vacuum thermal test of similar complex satellites.

The application provides a Beidou navigation receiver automatic test control method and device, and relates to the technical field of navigation test. Through automatic generation of a test template, control signal generation and distribution, automatic data acquisition, performance index calculation and report generation, efficient and reliable testing of the Beidou navigation receiver is realized, and the test efficiency is significantly improved, manual operation errors are reduced, test reliability and standardization are enhanced.

This utility model relates to a voltage breakdown strength testing fixture for insulating materials, comprising an insulating container, a fixed metal electrode, and a movable metal electrode, the fixed and movable metal electrodes being coaxial. Two opposing slots are formed on the inner wall of the insulating container, with the plane of the two slots located between the fixed and movable metal electrodes. The test sample placed in the slot is positioned between the fixed and movable metal electrodes and is in contact with both electrodes. When the bottom of the slot supports the test sample, the axis of the movable metal electrode passes through the center of the test sample. This utility model provides space for the test sample through the slots, and by utilizing the relative positional relationship between the slots and the movable and fixed metal electrodes, it ensures that after the test sample is placed in the slot, the axes of the movable and fixed metal electrodes pass through the center of the test sample, thereby ensuring stable and reliable testing.

The utility model discloses a waveguide test fixture, which comprises a lower mounting bottom plate, a lower cavity, an upper cavity, a PCB (printed circuit board), a micro rectangular electric connector and an adapter block, wherein the lower cavity, the upper cavity and the PCB are fixed on the lower mounting bottom plate and are sequentially distributed from bottom to top; the micro rectangular electric connector is fixed on the lower cavity and penetrates through the upper cavity; the high-frequency radio-frequency coaxial connector is fixed on the switching block and is electrically connected with the PCB; the micro rectangular electric connector and the high-frequency radio-frequency coaxial connector are electrically connected with a to-be-tested element; and the micro rectangular electric connector is connected with the PCB. According to the scheme, the waveguide testing device has the advantages of being simple in structure, reliable in testing and the like, and has high practical value and popularization value in the technical field of waveguide testing.

The invention provides a compressor assembly, an air conditioner and a control method.The compressor assembly comprises a power device box body, a frequency converter box body and a semiconductor refrigeration part, and the semiconductor refrigeration part is arranged in the frequency converter box body so as to cool and dehumidify air in the frequency converter box body; a condensation flow channel is further arranged in the frequency converter box body, the condensation flow channel can receive condensate water generated by refrigeration on the semiconductor refrigeration component, and the condensation flow channel can further enter the power device box body to dissipate heat of components in the power device box body. According to the frequency converter, condensation in the frequency converter can be solved, meanwhile, auxiliary heat dissipation can be conducted on the power module, and the energy efficiency is improved.

The invention discloses a furnace temperature testing tool, and relates to the technical field of furnace temperature testing. The furnace temperature testing tool comprises a temperature measuring plate arranged on a furnace temperature tracker, a heat insulation protection box, a host, a wire, a clamp and a thermocouple sensor, the top of the clamp is fixedly connected with a fixing plate, the side wall of the fixing plate is fixedly connected with a supporting plate, and the fixing plate and the supporting plate are fixedly arranged on the side wall of the wire in a sleeving mode. The bottom of the supporting plate is connected with a heat insulation protective cover through a telescopic piece, and the heat insulation protective cover is arranged on the side wall of the thermocouple sensor in a sleeving mode. According to the furnace temperature testing tool, when testing is not carried out, sealing protection can be carried out on the thermocouple sensor, the thermocouple sensor is prevented from being influenced by collision, water stains and the like, and the testing accuracy and the service life of the thermocouple sensor are guaranteed; in the testing process, the thermocouple sensor can be covered with the heat insulation protective cover, it is guaranteed that the thermocouple sensor makes contact with the temperature measuring plate, the influence of hot air in the furnace can be avoided, and therefore testing can be more accurate and reliable.

The present invention provides a calibration device for an AEB test prosthetic target device, which relates to the field of automobile testing technology, and mainly solves the technical problem that the prosthetic target is not calibrated and tested in the AEB test. The invention includes a calibration device, a test device, and a carrying device; the test device collects the RCS characteristics of the calibration device and the prosthetic target, and the test data of the prosthetic target; the calibration device calibrates the pre-position of the prosthetic target, and pre-calibrates the test device to confirm the RCS characteristic error caused by the current position of the calibration device and the test device and the surrounding environment; the carrying device carries the test device or the calibration device, and adjusts the position of the test device or the calibration device so that the test device and the calibration device are aligned with each other, so that the test device tests the prosthetic target at the pre-position. The present invention performs secondary calibration adjustment after the prosthetic target is damaged, which makes up for the problem that the existing equipment has insufficient identification basis, and also has the characteristics of high efficiency and reliability.