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- Title
Resistive-Based Micro-Kelvin Temperature Resolution for Ultra-Stable Space Experiments.
- Authors
Roma-Dollase, David; Gualani, Vivek; Gohlke, Martin; Abich, Klaus; Morales, Jordan; Gonzalvez, Alba; Martín, Victor; Ramos-Castro, Juan; Sanjuan, Josep; Nofrarias, Miquel
- 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 μ K / Hz in most of the measuring band down to 1 mHz, and reaching 20 μ K / 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.
- Subjects
GRAVITATIONAL wave detectors; PYROMETRY; PINK noise; WHEATSTONE bridge; TEMPERATURE
- Publication
Sensors (14248220), 2023, Vol 23, Issue 1, p145
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s23010145