Position sensors for flight testing of LISA drag-free control

被引：64

作者：

Weber, WJ ^{[1
]}

Bortoluzzi, D ^{[1
]}

Cavalleri, A ^{[1
]}

Carbone, L ^{[1
]}

Da Lio, M ^{[1
]}

Dolesi, R ^{[1
]}

Fontana, G ^{[1
]}

Hoyle, CD ^{[1
]}

Hueller, M ^{[1
]}

Vitale, S ^{[1
]}

机构：

[1] Univ Trent, Dipartimento Fis, I-38050 Povo, TN, Italy

来源：

GRAVITATIONAL-WAVE DETECTION | 2003年 / 4856卷

关键词：

gravitational waves; LISA; drag-free control;

D O I：

10.1117/12.458564

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Space-based detection of gravitational radiation is limited at low frequencies by stray force contamination of the orbits of ideally "free-falling" test masses. Shielding a test mass from external forces with a satellite requires precision position sensing that does not itself introduce excessive stray force or springlike coupling to satellite motion. The LISA (Laser Interferometer Space Antenna) mission to observe gravitational waves between 0.1 and 1000 mHz must limit stray acceleration to the fm/s(2)/rootHz level, with satellite position control at the nm/rootHz level. We present here a design, and a discussion of electrostatic disturbances, for a capacitive position sensor for LISA "drag-free" control, which will be flight-tested with the LISA Technology Package (LTP).

引用

页码：31 / 42

页数：12

共 18 条

[1]

ARAUJO HM, 2002, SPIE ASTR TEL INSTR

[2]

BENDER P, 2000, ESASCI200011

[3] EFFECT OF CRYSTALLITES ON SURFACE-POTENTIAL VARIATIONS OF AU AND GRAPHITE [J].