论文部分内容阅读
以构建于虚拟仪器和PXI总线体系结构的飞航导弹测试系统为基础,针对待检待控信号繁杂的现状,对各类输入/输出信号进行具有针对性的电气适配与调理;重点围绕开关量输入信号状态准确判定,模拟量对弹装定信号的驱动能力与电气隔离,强电磁干扰环境下脉冲串信号精确计数等关键技术展开攻关;通过采取开关量光隔接入逻辑鉴别,模拟量双端差动运放隔离输出设计,基于电平判读的脉冲串计数软硬件设计等措施,有效保证了测试系统与导弹之间良好的电气接口匹配关系。
Based on the test system of the pilot-operated missile built on the virtual instrument and the PXI bus architecture, aiming at the complicated status quo of the to-be-checked and controlled signals, the electric input and output signals of all kinds are targeted to the electrical adaption and conditioning. The focus is on the switch The accurate determination of the state of the quantity of the input signal, the analog quantity of the missile mounted signal driving capability and electrical isolation, strong electromagnetic interference pulse signal under accurate counting environment and other key technologies to tackle key problems; by taking the switch optical isolation access logic identification, analog Double-ended differential op amp isolated output design, based on the level of interpretation of the pulse counting software and hardware design and other measures to effectively ensure that the test system and the missile between the good electrical interface matching.