Noise measurements and optimization of the high sensitivity capacitive transducer of AURIGA

被引：9

作者：

Marin, A

Bignotto, M

Bonaldi, M

Cerdonio, M

Falferi, P

Mezzena, R

Prodi, GA

Soranzo, G

Taffarello, L

Vinante, A

Vitale, S

Zendri, JP

机构：

[1] Univ Padua, Dipartimento Fis, I-35100 Padua, Italy

[2] Ist Nazl Fis Nucl, Sez Padova, I-35100 Padua, Italy

[3] CNR, ITC, Ctr Fis Stati Aggregati, I-38050 Trent, Povo Trento, Italy

[4] Ist Nazl Fis Nucl, Grp Coll, I-38050 Trent, Povo Trento, Italy

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

来源：

CLASSICAL AND QUANTUM GRAVITY | 2002年 / 19卷 / 07期

关键词：

D O I：

10.1088/0264-9381/19/7/404

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Tests of the new AURIGA readout have recently started in the AURIGA ultracryogenic test facility. The most important modifications, with respect to the previous version of the readout, are a new, heavier, resonant capacitive transducer, the tuning of the electrical mode to the two mechanical ones and the use of a low noise two-stage SQUID amplifier. Results regarding the quality factor and the noise of the transducer mechanical and electrical modes are presented.

引用

页码：1991 / 1996

页数：6

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