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A vibration-free, thermally controlled setup for mechanical thermal noise measurements

Published online by Cambridge University Press:  23 December 2011

S. Longo ,
L. Cecchinato ,
M. Rampazzo ,
M. Bonaldi ,
A. Beghi  and
L. Conti
S. Longo
Affiliation:
INFN, Sezione di Padova, Via Marzolo 8, 35131 Padova, Italy
L. Cecchinato
Affiliation:
Dipartimento di Fisica Tecnica, Università degli Studi di Padova, Via Venezia 1, 35131 Padova, Italy
M. Rampazzo
Affiliation:
Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Padova, Via Gradenigo 6/B, 35131 Padova, Italy
M. Bonaldi
Affiliation:
Istituto di Fotonica e Nanotecnologie, CNR-Fondazione Bruno Kessler, 38100 Povo, Trento, Italy INFN, Gruppo Collegato di Trento, Sezione di Padova, 38100 Povo, Trento, Italy
A. Beghi
Affiliation:
Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Padova, Via Gradenigo 6/B, 35131 Padova, Italy
L. Conti*
Affiliation:
INFN, Sezione di Padova, Via Marzolo 8, 35131 Padova, Italy
*
ae-mail: lconti@pd.infn.it
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Abstract

We have developed a setup that offers a vacuum compatible, vibration-free experimental space with active thermal stabilization around room temperature, suitable for high sensitivity measurements. In this paper we describe the experimental setup from the thermal viewpoint and the design and implementation of the thermal control. Then we characterize the long-term performances of the control loop by using experimental data collected over 1 month: we show that our control is effective in reducing room temperature variations by a factor 100 over a few weeks, even in the presence of an internal dc heat source of 2 W.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 57 , Issue 2 , February 2012 , 21001
Copyright
© EDP Sciences, 2011

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References

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