Measurement of atmospheric coherence length and isoplanatic angle

Zhengfang Song; Gaochao Yang; Xiaochun Liu; Chengyu Fan

doi:10.1117/12.176065

31 May 1994 Measurement of atmospheric coherence length and isoplanatic angle

Zhengfang Song, Gaochao Yang, Xiaochun Liu, Chengyu Fan

Proceedings Volume 2201, Adaptive Optics in Astronomy; (1994) https://doi.org/10.1117/12.176065
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

The measuring principle and basic composition of the CLIAM (Coherence Length and Isoplanatic Angle Measurer) are presented and the results measured at Yunnan Observatory in Kunming are reported in this paper. The measured results are compared with the calculated values based on C²_n altitude profile measured by using ballon-borne macrothermal probe. Finally, some factors, which could have an effect on measuring validity, are analyzed.

Citation Download Citation

Zhengfang Song, Gaochao Yang, Xiaochun Liu, and Chengyu Fan "Measurement of atmospheric coherence length and isoplanatic angle", Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); https://doi.org/10.1117/12.176065

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