Accurate Telescope Mount Positioning with MEMS Accelerometers

Abstract

This paper describes the advantages and challenges of applying microelectromechanical accelerometer systems (MEMS accelerometers) in order to attain precise, accurate and stateless positioning of telescope mounts. This provides a completely independent method from other forms of electronic, optical, mechanical or magnetic feedback or real-time astrometry. Our goal is to reach the sub-arcminute range which is well smaller than the field-of-view of conventional imaging telescope systems. Here we present how this sub-arcminute accuracy can be achieved with very cheap MEMS sensors and we also detail how our procedures can be extended in order to attain even finer measurements. In addition, our paper discusses how can a complete system design be implemented in order to be a part of a telescope control system.

Accepted for publication in PASP, 12 pages

References in corpus (7)

• The USNO-B Catalog
• Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
• FITSH -- a software package for image processing
• "Pi of the Sky" - all-sky, real-time search for fast optical transients
• The AMiBA Hexapod Telescope Mount
• Telescope Fabra ROA Montsec: a new robotic wide-field Baker-Nunn facility
• The Fly's Eye Camera System -- an instrument design for large étendue time-domain survey

Cited by in corpus (1)

• A next generation upgraded observing platform for the automated Birmingham Solar Oscillations Network (BiSON)