Optical tachometric measurement apparatus, has combiner cube orienting light beams from quarter wave plate and mirror, where orientation of beams is represented by vector whose rotation angle is measured to measure phase difference of beams

摘要

#CMT# #/CMT# The apparatus has a monochromatic light source (1) e.g. laser, to emit light beams having rectilinear polarization. A polarizer (2) splits the beam into two light beams, where one light beam is passed to a quarter wave plate (4) via a mirror (3), and another beam is passed to another mirror (5). The plate transforms the polarization of the former beam into a circular polarization. The beams from the mirror and plate are oriented in a combiner cube (6), where the orientation of the beams is represented by a vector whose rotation angle is measured to measure phase difference of the beams. #CMT#USE : #/CMT# Used for tachometric measurement by referential study of electromagnetic waves related to gravitational field (claimed). #CMT#ADVANTAGE : #/CMT# The device permits effective tachometric measurement, in translation, through verification of hypothesis of the referential wave propagation study. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of an optical apparatus. 1 : Monochromatic light source 2 : Polarizer 3, 5 : Mirrors 4 : Quarter wave plate 6 : Combiner cube.