描述一种用于波前补偿实验的对流湍流系统。它用水或乙醇为介质,在采用了自行研制的平板式加热和冷却器后,不仅湍流强度易于控制,温度起伏谱和大气相似,具有较宽的惯性区和较好的重复性,而且比实际大气湍流更平稳。本系统除可用于自适应光学系统的波前补偿试验和湍流与热晕相互作用的研究外,还可用于其它激光通过湍流大气的模拟实验研究。

A convective turbulence system with a liquid medium (water or ethanol) that can be used for simulation tubulent atmospher for wavefront distortion compensation is described. After using the improved plate heater and cooler, a convective turbulence with wide intertial range similar to the spectra of atmospheric turbulence was obtained. Its turbulent intensity can be easily controlled and the optical characteristics of turbulence, such as stability, statistucs feature of turbulent and index of refraction fluctuation spectrum are better than that in the real atmosphere and can be repeated easy. So the system can be used for the experiments of adaptive optical compensation and for studying the interaction of turbulent and blooming, and light propagation through turbulent atmosphere.