摘要
用直径 1 μm和 1 0 μm金属丝分别测量了大气温度起伏功率谱 ,提出了测量湍流外尺度的方法。实测结果表明 :在复杂的光传输路径上至少有 5 0 %的温度谱不符合 Kolmogorov的 -5 /3定律 ;用直径 1 μm丝进行单点测量的 C2n 和直径 1 0 μm丝进行双点测量的 C2n较为一致 ;80 %的外尺度不超过7m。
The spectrum of temperature fluctuations have been measured by 1μm and 10μm diameter wires.A method for measuring outer scale is presented.The results of measurement show that at least 50% temperature spectra deviate from kolmogorov's '-5/3 low' over complex terrain. The results measured by a single sensor and a couple of sensors respectively agree well with each other. 80% of the outer scales are less than 7 meters.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2002年第2期233-237,共5页
High Power Laser and Particle Beams
基金
国家 8 6 3激光技术领域资助课题 ( 86 3-4 10 -9.3)
