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Proceedings Paper

Improved chopping secondary system for a 300-mm balloon-borne IR telescope
Author(s): Zunyuan Zhou; Xiang Jiang
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Paper Abstract

An improved chopping secondary system for a 300 mm balloon-borne IR telescope (BIT) has been developed. BIT is planned to be flown for the first tine in May 1990 in China. Design and overall properties of the chopping secondary system are presented. The important feature of this chopper is its control driver, which is a new type of vibrator. The whole system including the control circuit is very simple, lightweight, and low-cost. A 2-msec rise time of the 93 mm secondary mirror motion was achieved at a frequency of 10 Hz.

Paper Details

Date Published: 1 July 1990
PDF: 5 pages
Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); doi: 10.1117/12.19205
Show Author Affiliations
Zunyuan Zhou, Nanjing Astronomical Instruments Factory (China)
Xiang Jiang, Nanjing Astronomical Instruments Factory (China)


Published in SPIE Proceedings Vol. 1236:
Advanced Technology Optical Telescopes IV
Lawrence D. Barr, Editor(s)

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