Coordinate metrology of a primary surface composite panel from the Large Millimeter Telescope

Autor: David Castro Santos, Andrea Leon-Huerta, David M. Gale, Emilio Hernández Rios, Carlos Tzile Torres, Octavio Hernandez, Miguel Viliesid Alonso, Lizeth Cabrera Cuevas, Esteban Tecuapetla Sosa, Maribel Lucero Álvarez, Edgar Arizmendi Reyes
Rok vydání: 2016
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.2233892
Popis: The Large Millimeter Telescope (LMT) is a single-dish fully-steerable radio telescope presently operating with a 32.5 m parabolic primary reflector, in the process of extension to 50 m. The project is managed by the Instituto Nacional de Astrofisica, Optica y Electronica (INAOE) in Mexico, and the University of Massachusetts Amherst, USA. A laminated surface panel from the LMT primary reflector has been subjected to a surface measurement assay at Mexico’s National Metrology Center (CENAM). Data obtained using a coordinate measuring machine and laser tracker owned by CENAM is compared with measurements using an identical model laser tracker and the photogrammetry technique, the latter systems owned and operated by the LMT. All measurements were performed within the controlled metrology environment at CENAM. The measurement exercise is intended to prepare the groundwork for converting this spare surface panel into a calibrated work-piece. The establishment of a calibrated work-piece provides quality assurance for metrology through measurement traceability. It also simplifies the evaluation of measurement uncertainty for coordinate metrology procedures used by the LMT project during reflector surface qualification.
Databáze: OpenAIRE