某跨超声速风洞测量系统

摘要

In order to improve synchronization and precision wind tunnel data acquisition, for transonic and supersonic wind tunnel characteristics, design of a transonic and supersonic wind tunnel measurement system. The overall design of the wind tunnel measurement system is introduced, and the new technology and new method of continuous synchronous acquisition with ladder, reflective memory, NI-PSP technical protocol and so on are described in detail. Give the first a standard mold test results. Test results show that: the system is stable and reliable, with data acquisition accuracy, high frequency acquisition, data integrity preservation, high reliability data communication, transmission delay is short and so on, with a high degree of automation and the ability to expand and facilitates domestic self-development.%为了提高风洞试验中数据采集的同步性和精准度，针对跨超声速风洞的特点，设计某跨超声速风洞测量系统。介绍风洞测量系统的总体设计，详细阐述了连续与阶梯同步采集、反射内存、NI-PSP技术协议等新技术新方法。给出第1期标模试验，结果表明：该系统运行稳定可靠，具有数据采集精准度高，采集频率高，保存数据完整，数据通信可靠性高和传输时延短等特点，具有较高的自动化程度和拓展能力，并利于国内自主开发。