某伺服系统实时性自动化测试优化设计

Optimization Design of Real-time Automatic Test Equipment for Certain Servo Sysytem

伺服系统具有验收指标要求高,测试复杂,运行条件有限等特性,传统的人工测试局限性高且精度无法得到保证;伺服系统具有圆周扫、扇扫等功能,而转台作为该伺服系统的核心部件,是伺服系统旋转的主要机构,因此对伺服系统部分指标的测试可简化为对转台进行指标测试;基于PXIe总线的自动测试设备,具有高数据处理速度、高集成度、高国产化度、高稳定性等特点,适用于转台设备的自动化测试;采用FPGA和惯性传感器作为数据采集核心,设计PXIe总线转台自动测试设备,对多个指标同时测试,可将测试效率提升80%,满足转台测试设备的设计要求,同时具备良好的扩展性,该设计能够推广至其他需对转台进行测试的应用场景。

A servo system has the characteristics of high indexes,complex testing,limited operating conditions and so on.Traditional manual testing has high limitations and accuracy cannot be guaranteed.When the servo system has the functions of circular sweep and fan sweep,as the core component of the servo system,the turntable is the main mechanism for the rotation of the servo system,so some indicators of the servo system can be simplified as the index test of the turntable.The automatic test equipment based on PXIe bus has the characteristics of high data processing speed,high integration,high localization and high stability,which is suitable for the automatic test of turntable equipment.FPGA and inertial sensor are used to be taken as a data acquisition core,and design the PXIe bus turntable automatic test equipment.The test efficiency can be improved by 80%when multiple indicators are tested at the same time,which meets the design requirements of the turntable test equipment,and it has a good scalability.The design can be extended to other similar application scenarios that need to test turntables.