Liquid actuated gravity experiments

Abstract

We describe a new actuation technique for gravity experiments based on a liquid field mass. The Characterizing idea is to modulate the gravity force acting on a test mass by controlling the level of a liquid in a suitable container. This allows to obtain a periodical gravity force without moving parts (except the liquid level) close to the TM. We describe in detail the most relevant aspects of the liquid actuator and discuss how it can be used in gravity experiments. In particular we analyse an application to test the inverse square law in the mm to cm distance region.

References in corpus (10)

• The Hierarchy Problem and New Dimensions at a Millimeter
• Phenomenology, Astrophysics and Cosmology of Theories with Sub-Millimeter Dimensions and TeV Scale Quantum Gravity
• Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
• Tests of the Gravitational Inverse-Square Law
• Sub-millimeter tests of the gravitational inverse-square law: A search for "large" extra dimensions
• Sub-millimeter Tests of the Gravitational Inverse-square Law
• Review of short-range gravity experiments in the LHC era
• Search for dark matter candidates and large extra dimensions in events with a photon and missing transverse momentum in pp collision data at sqrt(s) = 7 TeV with the ATLAS detector
• A Measurement of Newton's Gravitational Constant
• A quasi-complete mechanical model for a double torsion pendulum