High precision tracking method for solar telescopes

Jingjing Guo; Yunfei Yang; Song Feng; Kanfan Ji; Jiaben Lin; Zhen Zeng; Bingxiang Wang

doi:10.1117/12.2231558

15 July 2016 High precision tracking method for solar telescopes

Jingjing Guo, Yunfei Yang, Song Feng, Kanfan Ji, Jiaben Lin, Zhen Zeng, Bingxiang Wang

Proceedings Volume 9910, Observatory Operations: Strategies, Processes, and Systems VI; 991028 (2016) https://doi.org/10.1117/12.2231558
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

A high-precision real-time tracking method for solar telescopes was introduced in this paper based on the barycenter of full-disk solar images algorithm. To make sure the calculation was accurate and reliable, a series of strictly logic limits were set, such as setting gray threshold, judging the displacement of the barycenter and measuring the deviation from a perfect disk. A closed-loop control system was designed in the method. We located the barycenter of the full-disk images which recorded by large array CCD image sensor in real time and eliminate noise caused by bad weather, such as clouds and fog. The displacement of the barycenter was analyzed and transferred into control signal drove the motor to adjust the axis of telescope. An Ethernet interface was also provided for remote control. In the observation, the precision of this new method was better than 1″/30 minutes.

Citation Download Citation

Jingjing Guo, Yunfei Yang, Song Feng, Kanfan Ji, Jiaben Lin, Zhen Zeng, and Bingxiang Wang "High precision tracking method for solar telescopes", Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 991028 (15 July 2016); https://doi.org/10.1117/12.2231558

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Observatories

Data archive systems

Telescopes

Astronomy

Gemini Observatory

Databases

Visualization

Show All Keywords

Keywords/Phrases

Search In:

Publication Years