飞行控制计算机模拟接口BIT电路设计及仿真

随着航空电子设备维修性要求的提高以及设备本身要求具备检测隔离故障的能力以缩短维修时间,机内测试(BIT)在测试领域研究中将越来越重要。功能电路BIT系统是航空电子设备整机BIT系统的重要组成部分,因此从解决实际问题出发,针对飞行控制计算机中的模拟输入和输出接口电路,提出了几种BIT的设计方法,并使用Multisim软件对所设计的BIT监测电路进行仿真,仿真结果表明,所设计的BIT电路是可靠及有效的。

Research on BIT Test Scheme for Analogue Interface Circuit of Flight Control Computer

As the avionic equipment maintainability increases as well as equipment itself requires the abil- ity to check the isolated faults in order to reduce maintenance time, BIT（ Built- in Test） research in the testing field will be increasingly important. Function circuit BIT system is an important component of avi- onic equipment BIT system, and the paper has designed the BIT strategic scheme for Analogue Interface Circuit of Flight Control Computer depending on the practical problem solution. The BIT test circuits have simulated by the Multisim software and the results have proven that it is reliable and valid.