Position sensors for LISA drag-free control

Details Position sensors for LISA drag-free control Position sensors for LISA drag-free control

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cqgra..19.1751w&link_type=abstract

Classical and Quantum Gravity, Volume 19, Issue 7, pp. 1751-1756 (2002).

Computer Science

Performance

8

Scientific paper

The extreme level of isolation from stray forces required for LISA makes the development of 'drag-free control' technologies essential to the mission. We report here on the progress in the development of a capacitive, six degree-of-freedom, position sensor designed to meet the required low levels of position read-out noise (1 nm Hz-1/2) and stray force noise (3 × 10-15 N Hz-1/2) across the LISA bandwidth of 0.1 mHz to 0.1 Hz. In this paper we briefly discuss sensor design and expected performance before presenting preliminary noise measurements made with a prototype sensor.

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