59results about How to "Realize fully automatic testing" patented technology

The invention belongs to the field of material ultra-high temperature mechanical property testing, relates to a test instrument for material mechanical properties at ultra-high temperature, in particular to an instrument for measuring the mechanical performances (for example, indentation characteristics, hardness and the like) of an object to be tested under ultra-high temperature conditions, anda high-temperature furnace with a special structure used in the instrument. The high-temperature furnace comprises a furnace body, a furnace bottom and a furnace cover, wherein the furnace body is connected with the furnace cover in a dynamic sealing manner, the furnace body and the furnace bottom are welded and in machine-made leveling to be formed integrally. The test instrument for the materialmechanical properties at the ultra-high temperature comprises the high-temperature furnace, and further comprises a sample rotating component, a data acquiring-processing component, an automatic control component and a vacuum pumping component and / or a protective gas filling component. The test instrument for the material mechanical properties at the ultra-high temperature, disclosed by the invention, not only maintains vacuum or protective atmosphere in the high-temperature furnace to solve the problems of inconvenient operation and the like caused by that the hardness tester or indenter inthe prior art is integrally kept in the vacuum or protective atmosphere.

The invention belongs to experimental and testing devices for mechanical parts, and specifically relates to a torque force testing device for a large-sized bolt. The device comprises a clamping and fixing part and a twisting part; the clamping and fixing part is formed by the way that two guide rails (22) are arranged on a pedestal (17), left and right guide sleeves (21) are arranged on each guide rail (22), a sliding pull base (28) is formed on the four guide sleeves (21), a bolt pull sleeve (7) is placed in an opening cavity of the sliding pull base (28), and two sides of the bolt pull sleeve (7) are sleeved in sliding rails (8) at two sides of the opening cavity of the sliding pull base (28) via sliding sleeves (6); a front end of a tensioning screw (2) is connected with the bolt pull sleeve (7); a locking screw disc (3) is sleeved on the tensioning screw (2); a rack (25) is arranged on the pedestal (17); and a shaft (19) of a wheel gear (24) engaged with the rack penetrates into the sliding pull base (28). The twisting part is orderly composed of a nut sleeve head (10), a rotary special-shaped head (11), a universal coupling (12), a torque sensor (13), a coupling (14), a reducer (15) and a motor (16). The torque force testing device is steady, reliable, accurate, safe and convenient in the test procedure, and can implement automatic test and improve the speed, the efficiency and the accuracy of the test.

The invention discloses a system for automatically diagnosing a fault of a circuit board. The system comprises a testing probe, a signal excitation device, a signal testing device, a central control machine and a robot movement mechanism, wherein the central control machine controls the signal excitation device; the signal excitation device is connected with a signal excitation end of a circuit board; the testing probe acquires data of a tested point of the circuit board to be transmitted to the signal testing device; the signal testing device processes the data and transmits the data to the central control machine; the central control machine controls the robot movement mechanism; the robot movement mechanism is used for controlling the testing probe to move; and the testing probe is used for testing the fault of the circuit board. The robot movement mechanism is controlled to drive the testing probe to move to a target testing point by the central control machine, so that fault diagnosis of the circuit board is fully automatically tested, manual operation is replaced by the robot movement mechanism, and manual labor is saved; and moreover, the fault of the circuit board can be accurately tested, and the system is convenient to use.

The invention discloses a high-temperature electrical characteristic testing device and a method for a semiconductor device. The device comprises a pulse power supply, a constant temperature heating equipment, and an electrical characteristic testing equipment. The method comprises the following steps of during a first preset time, the pulse power supply supplies a current pulse to a device to betested, and the constant temperature heating equipment heats the device to be tested; after the first preset time, the connection between the pulse power source and the device to be tested is disconnected, the constant temperature heating equipment adjusts the temperature of the device to be tested, so that the junction temperature of the device to be tested reaches and maintains the target temperature; the electrical characteristic testing equipment performs a high-temperature electrical characteristic test on the device to be tested. By implementing the high-temperature electrical characteristic testing device and method for semiconductor device, the device to be tested is heated by the combination of its own loss and the constant temperature heating device, the heating rate is fast; theelectrical characteristic testing equipment is not in contact with the device during the temperature rise of the device to avoid being affected by high temperature; the pulse power supply and the electrical characteristic testing equipment are disconnected during the test so as to prevent the two devices from interacting with each other, the testing process is safer and can be quickly and extensively tested in large batches.

The invention discloses a power device IO plug-in automatic test method suitable for pipeline production. A database, a computer, a tester, an auxiliary device and the like are provided; the databaseis used for barcode identification and test data storage; the computer is used for test management and fault positioning realization; the tester comprises a main control board, a backplane, a terminalconversion matrix, a backplane interface conversion module, a pin bed and the like; the terminal conversion matrix achieves automatic test wiring by switching a working bus; in the case of output test, main / standby double-input voltage sampling is used, and comparison error proofing is carried out; interface or level conversion is carried out through the backplane interface conversion module so as to meet requirements of a to-be-tested plug-in; and IO test is regularized to two steps of setting output and comparison input, the universality and the extensibility of an IO plug-in test logic areensured, and flexible pipeline production requirements can be well met.

The invention relates to an automatic test method for a television image. Before starting, a comparison sample is prefabricated. The test method comprises the steps of: playing a video of the prefabricated sample by a to-be-tested television, and shooting imaging of the television by a camera; after totally completing shooting, sequentially comparing photos in actual imaging with photos in the sample one by one according to preset parameters; if matching out photos in the sample, obtaining a result that the thread passes the test, and adding a count with one; if not matching out the photos, carrying out matching in residual sample photos according to a preset time interval; if still not matching out the photos, determining that the thread does not pass the test; when the number of the passing threads is accumulated to a preset requirement, determining that the television passes the test; and when the number of the passing threads does not reach the preset requirement, continuously carrying out testing on a next thread, and unless the number of the tested threads reaches the total number of the threads, determining that the television does not pass the test. According to the invention, the full automatic test on imaging and playback functions of the television is implemented, efficiency is greatly improved, and reliability is ensured.