E.A. Lavrov, A.V. Kozhemanov
FSUE «VNIIFTRI», Mendeleevo, Moscow region, Russia
lavrov@vniiftri.ru,
kaw@vniiftri.ru
Al’manac of Modern Metrology № 4 (28) 2021, pages 194–199
Annotation. Piezo actuator has been developed and incorporated into a two-wave laser interferometer that simulates the movement of the reference arm mirror to accumulate measurement results and ensure a resolution of less than one interference fringe. The results of measurements of a laser interferometer, developed and improved at FSUE “VNIIFTRI” for reproducing a unit of length in the range up to 60 m, with the inclusion of a reflector drive unit in the optical arrangement, are considered. The influence of meteorological conditions of laboratories on measurements is estimated.
Key words: laser interferometer, reflector drive unit, precision length measurements.
Full texts of articles are available only in Russian in printed issues of the magazine.