Abstract

JARAMILLO NUNEZ, A.. Medición del ángulo de desviación en un pentaprisma usando un interferómetro de Sagnac. Rev. mex. fis. [online]. 2004, vol.50, n.6, pp.625-628. ISSN 0035-001X.

A technique to measuring the error in the deviation angle of a pentaprism, which makes use of a Sagnac interferometer, is described. The beams of the interferometer are employed as reference beams in order to align the pentaprism. The deviation angle is measured with the aid of a reference flat attached to a goniometer mounting. Deviation angles with an error of 15 arcsec have been measured with a precision of 2 arcsec. The measurement precision can be improved substituting the goniometer for one of higher precision.

Keywords : Prisms; metrology; interferometers.

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