Quality evaluation of spaceborne SiC mirrors (II): evaluation technology for mirror accuracy using actual measurement data of samples cut out from a mirror surface

• 小谷, 政規

• 今井, 正

• 片山, 晴善

• 油井, 由香利

• 丹下, 義夫

• 金田, 英宏

• 中川, 貴雄

• 塩谷, 圭吾

• Kotani, Masaki

• Imai, Tadashi

• Katayama, Haruyoshi

• Yui, Yukari

• Tange, Yoshio

• Kaneda, Hidehiro

• Nakagawa, Takao

• Enya, Keigo

Bibliographic Information

Other Title

• 観測衛星用SiC製鏡体の品質評価技術(II)鏡面部切り出しサンプルの実測データを用いた鏡面精度の評価技術

Abstract

The authors studied the quality evaluation technology of a spaceborne large-scale lightweight mirror that was made of silicon carbide (SiC)-based material. To correlate the material property of a mirror body and the mirror accuracy, the authors evaluated the mirror surface deviation of a prototype mirror by inputting actually measured coefficient of thermal expansion (CTE) data into a finite element analysis model. The CTE data were obtained by thermodilatometry using a commercial grade thermal dilatometer for the samples cut from all over the mirror surface. The computationally simulated contour diagrams well reproduced the mirror accuracy profile that the actual mirror showed in cryogenic testing. Density data were also useful for evaluating the mirror surface deviation because they had a close relationship with the CTE.

資料番号: PA1420011000

Journal

• Applied Optics

  Applied Optics 52 (26), 6458-6466, 2013-09-10

  Optical Society of America

Details

• CRID: 1050285299937499904
• NII Article ID: 120006832356
• NII Book ID: AA00543409
• ISSN: 1559128X
• ISSN: 21553165
• Web Site: http://id.nii.ac.jp/1696/00022458/
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles