Portable multifunctional aerospace cable detection instrument and method

Abstract

The invention provides a portable multifunctional aerospace cable detection instrument and method, and belongs to the field of automated instruments. The detection instrument includes external USB interfaces, an Ethernet interface, and a liquid crystal display linked computer; the computer is connected with a digital input / output module, an insulation resistance detection module, a continuity testmodule, a four-wired resistor detection module, a dielectric strength test module and an input equipment through USB interfaces; the digital input / output module, the insulation resistance detection module, the continuity test module, the four-wired resistor detection module and the dielectric strength test module are connected with a test unit adapter through a relay matrix module. The method includes the steps of obtaining the cable test state, the electrical element test state and the calibration state. The automated test process is achieved through computer control, integration of varioustest functions is achieved, the test efficiency is improved, and the labor intensity is reduced. A shell case is designed to be miniaturized, lightweight and portable, a handle is arranged, and the detection instrument is easy to carry.

Description

technical field [0001] The invention relates to a portable multipurpose aerospace cable detector and method, which belong to the field of automatic instruments and meters. Background technique [0002] In recent years, with the rapid development of aerospace electronic technology, the cables in various aerospace vehicles, detectors and supporting ground equipment are also developing in a complicated and diversified direction. In addition to the complexity of the cable and the number of cores In addition to the substantial increase, various electrical performance requirements are also getting higher and higher. [0003] Compared with general equipment cables, cables used in aerospace are much harsher, for example, they must be used in working environments such as high altitude, high speed, high acceleration, high temperature and extreme cold, and they must also bear the load of various complex flight actions ; making it easier to produce faults, but the reliability of aerosp...

AI Technical Summary

Problems solved by technology

[0005] Manual inspection: Use multimeters, insulation resistance testers, dielectric strength testers and other equipment to test each conductor of the cable, and input, proofread, analyze and edit the test data separately. This method is very inefficient and easy Errors, sometimes a cable detection data may be as many as hundreds of thousands or millions, which is very time-consuming and labor-intensive;

[0006] Use special testing instruments: At present, some aerospace cables with large batches are tested by special testing instruments. Compared with manual testing, the test efficiency and accuracy are improved to a certain extent, but such special testing instruments can only test specific The type of cable has poor versatility and is difficult to expand; and it is too bulky to carry, so it can only be used in the factory environment;

[0007] Use general-purpose cable testing instruments: Some companies use general-purpose cable testing instruments to test aerospace cables, such as wire harness analyzers, cable network testers and other equipment. Using these equipment is also more efficient and accurate than traditional manual testing, but general-purpose There is no special matching tool for the cable test instrument, the installation and connection of the tested cable and the test instrument are troublesome, and different parameters need to be input for each cable, and the test preparation is time-consuming

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