DocumentCode
731625
Title
Design of an interferometric displacement sensor with picometer resolution for the Galileo-Galilei mission
Author
Pisani, Marco ; Mana, Giovanni ; Nobili, Anna M.
Author_Institution
Ist. Naz. di Ricerca Metrol., Turin, Italy
fYear
2015
fDate
4-5 June 2015
Firstpage
591
Lastpage
595
Abstract
The Galileo-Galilei (GG) mission aims at testing the Weak Equivalence Principle. It requires the measurement of the differential displacement between two test masses with a resolution of 1 pm/√Hz at 1 Hz. An optical interferometer has been designed to the purpose. The principle and the preliminary design of the interferometer will be illustrated.
Keywords
gravitation; light interferometers; Galileo-Galilei mission; differential displacement measurement; interferometric displacement sensor; optical interferometer; picometer resolution; weak equivalence principle; Detectors; Diffraction; Extraterrestrial measurements; Laser beams; Measurement by laser beam; Mirrors; Optical interferometry; Laser interferometer;
fLanguage
English
Publisher
ieee
Conference_Titel
Metrology for Aerospace (MetroAeroSpace), 2015 IEEE
Conference_Location
Benevento
Type
conf
DOI
10.1109/MetroAeroSpace.2015.7180724
Filename
7180724
Link To Document