Resumo

PORTUONDO PAISAN, Yoel; LAFARGUE PEREZ, Francisco  e  PINO TARRAGO, Julio Cesar. Assessing the quality of a profile projector by calibration. Ingeniería Mecánica [online]. 2020, vol.23, n.3  Epub 01-Dez-2020. ISSN 1815-5944.

By means of the calibration it is possible to be sure that the instruments are measuring correctly in order to guarantee the reliability and traceability of the measurements. The objective of the work was to calibrate the Digital Profile Projector CPJ 3025A. The calibration of the X, Y axes and the angular scale of the projector is performed for diascopic lighting (transmitted light projection). For the calibration were used gauge blocks and angular gauge, the procedure used was that published by the Spanish Metrology Center. As a result were obtained uncertainties for each of the points, as well as the calibration curves of the axes and the author conclude that the calculated errors do not exceed the permissible, so the projector offers reliable measurements and the instrument does not require adjustments or corrections to the measurement results.

Palavras-chave : calibration; profile projector; gauge blocks.

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