Design and Teaching Application of an Aviation Electrical Component Testing Training Platform

To address the problems of dispersed equipment, cumbersome operation, and low data processing efficiency in traditional testing methods for aviation electrical components, a general training platform for electrical testing featuring universality, integration, and intelligence is designed and developed. The platform employs a multi-channel digital I/O control card as its core for equipment integration and interconnection, equipped with a programmable three-phase AC source, multiple DC sources, resistive/inductive loads, digital oscilloscopes, and multimeters. A 128-point universal wiring area supports test circuit construction for various types of aviation electrical components. The software system adopts a layered modular architecture, implementing automated test control, data acquisition and analysis, fault injection and safety monitoring, and provides an open routine library supporting students in autonomous design and debugging of automated test programs. Based on this platform, a course entitled “Aviation Electrical Parameter Testing and Automated Test Technology” is designed, organized into three modules: equipment control, steady-state parameter test system design, and transient parameter test system design. Through systematic training, students can independently complete the entire process of scheme design, hardware construction, software debugging, and data analysis for automated electrical performance testing systems of relays, contactors, and other components. Platform testing demonstrates that the action-time measurement error is 0.09 ms, the relative error of contact-resistance measurement is 1.4%, and the average overcurrent protection response time is 2.8 ms. A comparative teaching evaluation reveals that the proportion of students independently constructing automated test systems increases from 45.0% to 80.0%, while the average troubleshooting time decreases from 26.0 min to 16.1 min.