GRAVITY GRADIOMETER

摘要

A quadrupole responder for an OQR type gravity gradiometer includes a housing and a mass quadrupole positioned within the housing. A torsional spring includes a flexure attaching the mass quadrupole to the housing and allowing rotation of the mass quadrupole about its center of mass. The flexure is formed of a material which is a glassy metal or a nanocrystalline material, such that the flexure will undergo low loss elastic deformation during the rotation.