Image stabilization system on SOLAR-B Solar Optical Telescope

Toshifumi Shimizu; Shin'ichi Nagata; Chris Edwards; Theodore Tarbell; Yasuhiro Kashiwagi; Kazuhide Kodeki; Osamu Ito; Hiroyuki Miyagawa; Masayuki Nagase; Syunsaku Inoue; Kazumasa Kaneko; Yasushi Sakamoto; Kiyoshi Ichimoto; Saku Tsuneta; Shiro Miki; Makoto Endo; Masaki Tabata; Toshitaka Nakaoji; Keiichi Matsuzaki; Ken Kobayashi; Masashi Otsubo; Yoshinori Suematsu; Kazuyoshi Kumagai; Motokazu Noguchi; Tomonori Tamura; Masao Nakagiri

doi:10.1117/12.551368

12 October 2004 Image stabilization system on SOLAR-B Solar Optical Telescope

Toshifumi Shimizu, Shin'ichi Nagata, Chris Edwards, Theodore Tarbell, Yasuhiro Kashiwagi, Kazuhide Kodeki, Osamu Ito, Hiroyuki Miyagawa, Masayuki Nagase, Syunsaku Inoue, Kazumasa Kaneko, Yasushi Sakamoto, Kiyoshi Ichimoto, Saku Tsuneta, Shiro Miki, Makoto Endo, Masaki Tabata, Toshitaka Nakaoji, Keiichi Matsuzaki, Ken Kobayashi, Masashi Otsubo, Yoshinori Suematsu, Kazuyoshi Kumagai, Motokazu Noguchi, Tomonori Tamura, Masao Nakagiri

Author Affiliations +

Proceedings Volume 5487, Optical, Infrared, and Millimeter Space Telescopes; (2004) https://doi.org/10.1117/12.551368
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Extremely stable pointing of the telescope is required for images on the CCD cameras to accurately measure the nature of magnetic field on the sun. An image stabilization system is installed to the Solar Optical Telescope onboard SOLAR-B, which stabilizes images on the focal plane CCD detectors in the frequency range lower than about 20Hz. The system consists of a correlation tracker and a piezo-based tip-tilt mirror with servo control electronics. The correlation tracker is a high speed CCD camera with a correlation algorithm on the flight computer, producing a pointing error from series of solar granule images. Servo control electronics drives three piezo actuators in the tip-tilt mirror. A unique function in the servo control electronics can put sine wave form signals in the servo loop, allowing us to diagnose the transfer function of the servo loop even on orbit. The image stabilization system has been jointly developed by collaboration of National Astronomical Observatory of Japan/Mitsubishi Electronic Corp. and Lockheed Martin Advanced Technology Center Solar and Astrophysics Laboratory. Flight model was fabricated in summer 2003, and we measured the system performance of the flight model on a laboratory environment in September 2003, confirming that the servo stability within 0-20 Hz bandwidth is 0.001-0.002 arcsec rms level on the sun.

Citation Download Citation

Toshifumi Shimizu, Shin'ichi Nagata, Chris Edwards, Theodore Tarbell, Yasuhiro Kashiwagi, Kazuhide Kodeki, Osamu Ito, Hiroyuki Miyagawa, Masayuki Nagase, Syunsaku Inoue, Kazumasa Kaneko, Yasushi Sakamoto, Kiyoshi Ichimoto, Saku Tsuneta, Shiro Miki, Makoto Endo, Masaki Tabata, Toshitaka Nakaoji, Keiichi Matsuzaki, Ken Kobayashi, Masashi Otsubo, Yoshinori Suematsu, Kazuyoshi Kumagai, Motokazu Noguchi, Tomonori Tamura, and Masao Nakagiri "Image stabilization system on SOLAR-B Solar Optical Telescope", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); https://doi.org/10.1117/12.551368

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available