航空电器元件电气检测训练平台设计与教学应用

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

  • 摘要: 针对航空电器元件传统检测方法中设备分散、操作繁琐、数据处理效率低等问题,设计并研制了一种通用化、集成化、智能化的电气检测通用训练平台。该平台以多通道数字IO控制卡为核心实现设备集成互联,配置可编程三相交流源、多路直流源、阻性/感性负载及数字示波器、万用表等检测仪器,通过128插线位通用接线区支持多种类型航空电器元件的测试回路搭建。软件系统采用分层式模块化架构,实现了自动测试控制、数据采集分析、故障设置与安全监控等功能,并提供开放式例程库支持学员进行自动测试程序的自主设计与调试。在此平台基础上,设计的《航空电气自动测试技术》课程,按设备控制、稳态参数测试系统设计和瞬态参数测试系统设计三个模块组织教学内容,学员通过系统训练能够独立完成继电器、接触器等元件电气性能自动测试系统的方案设计、硬件搭建、软件调试与数据分析全流程。平台测试结果表明,动作时间测量误差为0.09 ms,接触电阻测量相对误差为1.4%,过流保护响应时间平均为2.8 ms;教学应用对比显示,采用本平台后,独立搭建自动测试系统比例由45.0%提升至80.0%,平均故障定位用时由26.0 min缩短至16.1 min。

     

    Abstract: 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.

     

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