Measurement of vibration environment of 6m-diameter radiometer thermal vacuum chamber in JAXA
Measurement of vibration environment of 6m-diameter radiometer thermal vacuum chamber in JAXA
复制标题
JAXA直径6m辐射计热真空室振动环境测量
DOI：
10.1117/12.825937
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Y. Tange
中科院分区：
文献类型：
--
作者：
H. Katayama;Yasuji Yamamoto;Masashi Miyamoto;Hideki Saruwatari;H. Kaneda;Y. Tange
在未来的天文学和地球观测任务中，将需要星载大型光学器件。为了实现大型光学仪器的飞行任务，日本宇宙航空研究开发机构已开始研究大型光学仪器的地面测量技术。筑波航天中心直径6 m的辐射计热真空室（6 m室）将用于JAXA未来大型光学任务的测试，例如宇宙学和天体物理学空间红外望远镜（SPICA）。为了研究精密光学测量的可行性，我们对6米电离室的振动环境进行了测量。我们将一个测试镜放置在腔室中，用高速干涉仪从腔室外部测量反射镜的表面图形，同时用液氮抽真空和冷却;我们还同时用加速度计直接测量振动水平。对腔室系统操作的每个阶段进行测量，包括泵送和冷却过程。本文介绍了在6 m电离室上进行振动环境下光学测量的结果。我们确认，泵和护罩的振动对光学测量的影响可以忽略不计，因为在6米的腔室中安装了隔振系统。
Space-borne large optics will be required in future missions for astronomy and earth observations. In order to realize large-optics missions, JAXA has started the study of the ground measurement techniques of large optics. The 6m diameter radiometer thermal vacuum chamber (6m chamber) at Tsukuba Space Center will be used for tests of JAXA's future large-optics missions like Space Infrared Telescope for Cosmology and Astrophysics (SPICA). We measured the vibration environment of the 6m chamber for the feasibility study of precise optical measurement. We placed a test mirror inside the chamber and measured the surface figures of the mirror from outside the chamber with a high-speed interferometer, while the chamber was being vacuum-pumped and cooled by liquid nitrogen; we also directly measured the vibrational levels with accelerometers concurrently. The measurements were performed for each phase of the chamber system operation including pumping and cooling processes. This paper presents the results about optical measurement under the vibration environment on the 6m chamber. We confirm that the vibrations from pumps and shroud have negligible effects on optical measurements owing to a vibration isolation system in the 6m chamber.
DOI：
10.1117/12.733430
发表时间：
2007-09
期刊：
--
影响因子：
--
作者：
H. Kaneda;T. Nakagawa;T. Onaka;K. Enya;H. Kataza;S. Makiuti;H. Matsuhara;Masashi Miyamoto;H. Murakami;Hideki Saruwatari;H. Watarai;Y. Yui
通讯作者：
H. Kaneda;T. Nakagawa;T. Onaka;K. Enya;H. Kataza;S. Makiuti;H. Matsuhara;Masashi Miyamoto;H. Murakami;Hideki Saruwatari;H. Watarai;Y. Yui