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航空电子产品的测试以往经常采用生产线上的电路内测试(ICT)和对成品在自动测试设备(ATE)上的功能测试。80年代早期功能测试工具尚不普遍,其功能测试软件还很有限。功能测试的设计和编程是很费时的,往往产品已先出厂使用,而测试程序尚未完成。今天自动测试设备已较成熟,开发的功能测试程序已较多。印刷电路板(PCB)的测试利用钉床(bed of nail)夹具及各种相应的适配转换接口件实现电路内测试。然而由于电路板上密集度不断提高,ICT法已几乎难于实现。现将近年来测试方
Testing of avionics Traditionally, in-circuit testing (ICT) on the production line and functional testing of finished products on automatic testing equipment (ATE) have traditionally been used. Early 80’s functional testing tools are not common, and their functional testing software is still very limited. The design and programming of functional tests can be time-consuming, often with the product first shipped and the test procedure not yet completed. Today, automatic test equipment has been more mature, developed functional test procedures have more. Testing of Printed Circuit Boards (PCBs) In-circuit testing is performed using bed of nail fixtures and a variety of appropriate adapter adapters. However, due to the increasing density of circuit boards, the ICT method has been almost impossible to achieve. In recent years, the test side