Yazar "Flebus, Carlo" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Yayın
    The DAG Project, a 4m class telescope: The telescope main structure performance
    (SPIE, 2016) Marchiori, Gianpietro; Busatta, Andrea; Ghedin, L.; Marcuzzi, Enrico; Manfrin, Cristiana; Battistel, C.; Pirnay, Olivier; Flebus, Carlo; Yeşilyaprak, Cahit; Keskin, Onur; Yerli, Sinan Kaan
    Dogu Anatolu Gözlemevi (DAG-Eastern Anatolia Observatory) Project is a 4m class optical, near-infrared Telescope and suitable enclosure which will be located at an altitude of 3.170m in Erzurum, Turkey. The DAG telescope is a project fully funded by Turkish Ministry of Development and the Atatürk University of Astrophysics Research Telescope - ATASAM. The Project is being developed by the Belgian company AMOS (project leader), which is also the optics supplier and EIE GROUP, the Telescope Main Structure supplier and responsible for the final site integration. The design of the Telescope Main Structure fits in the EIE TBO Program which aims at developing a Dome/Telescope systemic optimization process for both performances and competitive costs based on previous project commitments like NTT, VLT, VST and ASTRI. The optical Configuration of the DAG Telescope is a Ritchey-Chretien with two Nasmyth foci and a 4m primary thin mirror controlled in shape and position by an Active Optic System. The main characteristics of the Telescope Main Structure are an Altitude-Azimuth light and rigid structure system with Direct Drive Systems for both axis, AZ Hydrostatic Bearing System and Altitude standard bearing system; both axes are equipped with Tape Encoder System. An innovative Control System characterizes the telescope performance.
  • Küçük Resim
    Yayın
    Production of M1, M2 and M3 mirrors for DAG project (Belgium, Russia). Current status
    (SPIE-Int Soc Optical Engineering, 2018) Abdulkadyrov, Magomed A.; Semenov, Aleksandr P.; Belousov, Sergey P.; Vladimirov, Nikita M.; Ignatov, Aleksandr N.; Patrikeev, Vladimir E.; Pridnya, Vitaliy V.; Polyanchikov, Andrey V.; Nasyrov, Ruslan K.; Pirnay, Olivier; Flebus, Carlo; Yeşilyaprak, Cahit; Keskin, Onur
    This paper describes the technology of production and testing of mirrors for DAG Telescope (Doge Anadolu Gozlemevi) produced by Belgium Company AMOS. JSC LZOS fulfils works on production and testing of three mirrors: primary concave hyperbolic mirror of diameter 4 m, secondary convex hyperbolic mirror - 764 mm and tertiary elliptical mirror with flat working surface with dimensions 890x650 mm. The primary mirror is produced from Zerodur, while the secondary and the tertiary ones - from Astrositall. Some auxiliary elements, containers and handling tools, etc. are also produced at JSC LZOS. Special aspects of mirrors machining and testing are also reflected in this article.