Continuity test device and continuity test method of airborne cable

Abstract

The invention discloses a continuity test device and a continuity test method of an airborne cable for continuity test of the airborne cable after final assembly. When a controller in the continuity test device of the airborne cable starts a continuity test, the controller controls the starting and stopping of relays in multiple test circuits according to a preset sequence, so that just one relay is located in a closed state at the same time and whether a loop current exists in the test circuit in which the closed relay exits is detected, If so, a core wire which is connected with the test circuit at which the closed relay exists in the to-be-tested airborne cable is connected, otherwise, the core is not connected. Thus, the controller can control the multiple test circuits connected with the core wires in the to-be-tested airborne cable to connect in turn to sequentially judge the continuity condition of the core wires in the to-be-tested airborne, so that a fast, simple and highly reliable automatic continuity test is carried out on the airborne cable under the limited condition that the airborne cable is already installed and deployed on an aircraft.

Description

technical field [0001] The present application relates to the field of circuit technology, in particular to a device and method for conducting a test of an airborne cable. Background technique [0002] In the final assembly stage of the aircraft, after the airborne cables are installed and deployed on the aircraft, the onboard cables need to be tested for continuity to ensure that the installed airborne cables are not damaged before they are connected to the airborne equipment. [0003] According to the general assembly process, the airborne cables will be deployed and fixed inside the aircraft fuselage first, and then the continuity test and insulation test will be performed. At this time, since the cables have been deployed and installed, the position is fixed and cannot be moved, so only the end-to-end complete path is performed. test. And because the connectors at both ends of the airborne cable may be far away, some test equipment used on the airborne cable production ...

AI Technical Summary

Problems solved by technology

And because the connectors at both ends of the airborne cable may be far away, some test equipment used on the airborne cable production line cannot be used for testing. The existing test method is that two testers are a group, using long wires, batteries , indicator lights form a simple circuit, two people are respectively located at both ends of the installed airborne cable, connect the two ends of the long wire to the same wire core in the aviation connector at both ends of the airborne cable, and then communicate and confirm through the walkie-talkie Whether the indicator light is on, to manually test whether the end-to-end path of the airborne cable is normally conducted

[0004] However, there are at least the following problems in the prior art: the airborne cables of the entire aircraft have thousands of wire cores, and it is a huge task to conduct all the conduction tests, and the existing airborne cable testing methods rely entirely on manual work. , low efficiency, cumbersome steps, and low reliability of test results

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