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Resistive-Based Micro-Kelvin Temperature Resolution for Ultra-Stable Space Experiments

Resistive-Based Micro-Kelvin Temperature Resolution for Ultra-Stable Space Experiments

Authors :
David Roma-Dollase
Vivek Gualani
Martin Gohlke
Klaus Abich
Jordan Morales
Alba Gonzalvez
Victor Martín
Juan Ramos-Castro
Josep Sanjuan
Miquel Nofrarias
Source :
Sensors, Vol 23, Iss 1, p 145 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

High precision temperature measurements are a transversal need in a wide area of physical experiments. Space-borne gravitational wave detectors are a particularly challenging case, requiring both high precision and high stability in temperature measurement. In this contribution, we present a design able to reach 1 μK/Hz in most of the measuring band down to 1 mHz, and reaching 20 μK/Hz at 0.1 mHz. The scheme is based on resistive sensors in a Wheatstone bridge configuration which is AC modulated to minimize the 1/f noise. As a part of our study, we include the design of a test bench able to guarantee the high stability environment required for measurements. We show experimental results characterising both the test bench and the read-out, and discuss potential noise sources that may limit our measurement.

Details

Language :
English
ISSN :
14248220
Volume :
23
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Sensors
Publication Type :
Academic Journal
Accession number :
edsdoj.fe39bdf9ddcf46508917bef738555c1c
Document Type :
article
Full Text :
https://doi.org/10.3390/s23010145