Design of an in-situ test equipment for the proximity sensor of the aircraft cabin door

摘要

The airliner sealability, influenced by the closeness of cabin door, is an important factor affecting the flight safety during aircraft flights. In the aircraft cabin system, the state of the door can be judged by the value of the proximity sensor output of the door. To handle the difficulty of integrated test for airliners, taking regional airliner as studying object, the paper accomplishes the simulation of the judgment trajectory of the cabin door state for testing the inductive proximity sensor, via the cubic spline interpolation algorithm on the three-axes motion platform. Meanwhile, it analyses the ARINC429 data related to the cabin door by applying ICD database which is based on virtual instrument, and the result conduced to the test of the connection path between the proximity sensor and the PACU (Position Actuation Control Unit). Therefore, the paper significantly contributes to the integration test in the aircraft cabin door assembly plant of the regional airliner.