Managing NFIRAOS optical enclosure environment conditions from a high level software system

Jonathan Stocks; Glen Herriot; David Andersen; Malcolm Smith; Adam Densmore; Jennifer Dunn

doi:10.1117/12.2630395

29 August 2022 Managing NFIRAOS optical enclosure environment conditions from a high level software system

Jonathan Stocks, Glen Herriot, David Andersen, Malcolm Smith, Adam Densmore, Jennifer Dunn

Proceedings Volume 12185, Adaptive Optics Systems VIII; 1218550 (2022) https://doi.org/10.1117/12.2630395
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

NFIRAOS, the Narrow Field Infrared Adaptive Optics System, is the first light AO System for the Thirty Meter Telescope (TMT). It performs wavefront correction in the near infrared spectrum using various optomechanical components operating under strictly controlled conditions. The NFIRAOS Optical Enclosure (ENCL) is designed to provide a housing that maintains an ideal clean sub-zero environment (-30 ±0.5 C) for such components. To manage this, the ENCL provides a multi-leveled control system that accurately manages the environment using low-level hardware control to ensure that internal systems are not subjected to environmental effects that may adversely affect operation, while coordinating with the telescope operation. We will analyze the aspects of the operational constraints to allow the ENCL Control System to communicate with low level sensors and controllers as well as with the high-level Controller management system to ensure all operational conditions are fully met.

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Jonathan Stocks, Glen Herriot, David Andersen, Malcolm Smith, Adam Densmore, and Jennifer Dunn "Managing NFIRAOS optical enclosure environment conditions from a high level software system", Proc. SPIE 12185, Adaptive Optics Systems VIII, 1218550 (29 August 2022); https://doi.org/10.1117/12.2630395

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