Power supply characteristic testing system of airborne power equipment

Abstract

The invention provides a power supply characteristic testing system of airborne power equipment. The power supply characteristic testing system comprises an electric circuit and control unit, a harmonic coupling unit, a PXI detection unit, an external programmable power supply unit and a system software unit, wherein the electric circuit and control unit is used for being connected with detected airborne equipment and selecting a corresponding electric circuit according to the type of the to-be-detected equipment; the harmonic coupling unit is used for generating a harmonic signal and coupling a harmonic wave to the electric circuit; the PXI detection unit is used for measuring input parameter of the to-be-detected equipment; the external programmable power supply unit is used for providing the whole equipment with electricity; and the system software unit is used for transmitting a test instruction to the electric circuit and control unit, the harmonic coupling unit and the PXI detection unit. The power supply characteristic testing system of the airborne power equipment has the beneficial effects that various aircraft power supply standards, including an electric test circuit for automatically switching various test projects can be met, and the problem of poor universality is solved.

Description

technical field [0001] The invention relates to a ground test system for electrical equipment on military aircraft, in particular to a power supply characteristic test system for airborne electrical equipment. Background technique [0002] There are more and more airborne electrical equipment on military aircraft. In order to ensure that the airborne electrical equipment can operate safely in the actual power supply environment, the country has formulated the national military standard GJB181 series of aircraft power supply characteristics standards to clarify the airborne electrical equipment. Power supply conditions, so the airborne electrical equipment must be tested in accordance with the corresponding power supply standards before installation; because there are multiple power supply standards on military aircraft (such as DC 28V, DC 270V, AC 115 / 400Hz, etc.), different power supply standards require There are many test items, and at least 12 items are required, and the...

AI Technical Summary

Problems solved by technology

[0005] 2) Low work efficiency

[0006] Since each test item in a power supply standard needs to be built an electrical test circuit and different instruments and equipment, the test preparation time is long, and the time requirements for each test item are relatively long and demanding. Adjust the output and measurement of instruments and equipment, resulting in many test personnel, high labor intensity, long test time and low efficiency

[0007] 3) Low reliability

[0008] Since the test circuit is built manually, it is necessary to manually set the output and manual measurement during the test. Most of the tests also require repetitive tests. Manual setting of test parameters and manual measurement is a test for the concentration of the test personnel. In the process of parameter and manual measurement, human error occurs, resulting in misjudgment or missed judgment of the test

[0009] 4) Low degree of automation and informatization

[0010] In each test loop built manually, there is no special computer to record and save the test data, the parameter records are not timely, the subsequent supplements are not accurate, there is no data traceability function, and there is a lack of automatic management and analysis of the test process, and the dynamic test methods are backward

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