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
收藏
页码：1991 / 1996
页数：6
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