摘要
利用ＰＣ总线工业控制计算机及有关功能组件，组成ＨＧ－４亚、跨、超音速风洞控制系统，实现超音速总压Ｐ０及亚、跨音速马赫数Ｍ自动调节，进一步提高吹风过程自动化。
This essay mainly introduces industrial control computer and related functional components that comprise of test-control system of HG4 subsonic, transonic and supersonic wind tunnel.This system leads to automlatic regulation of supersonic total pressure-p0 as well as subsonic and transonic Mach number-M Moreover,It improves automation in the process of blowing wind.
关键词
自动控制系统
风洞
超音速
跨音速
亚音速
automatic control system computer application closed loop regulation total pressure mach number regulator data acquisition
