D. Lauben

TL;DR: The Disturbance Reduction System (DRS) as mentioned in this paper is designed to demonstrate technology required for future gravity missions, including the planned LISA gravitational-wave observatory, and for precision formation-flying missions.

TL;DR: In this paper, the LISA Pathfinder gravitational reference sensor (GRS) obtained measured displacement sensitivity δx ∼ 1.5×10−9 m Hz −1/2 to below f ⩽ 0.1×10 −3 Hz with 30 Vdc fields when needed for proof mass initialization and charge measurement, while DC bias trim provided work-function nulling to ± 50 mV with < 2mV step resolution and stability δV < 8× 10−6 V Hz − 1/2.

TL;DR: In this paper, a thermal control system developed for ground verification testing of a ST-7 GRS ground verification testbed was demonstrated to provide thermal stability δT 24 hours at f < 0.01 mHz.

TL;DR: In this article, the authors describe the calibration and operation of the ST7 GRS capacitive sensor system using a novel optical interferometer, featuring both fiber optic delivery and readout.