Design and Verification of Temperature Measurement Bridge Excitation Source in the Taiji Program

热扰动是空间引力波探测最重要的干扰来源之一, 为满足中国空间引力波探测“太极计划”的需求, 需要保证探测器光学干涉平台所在区域温度波动优于10 μK·Hz<sup>–1/2</sup> @ 0.1 mHz~1 Hz, 这需要μK·Hz<sup>–1/2</sup>的温度测量技术. 针对空间引力波探测对高分辨率测温技术的需求, 研制了一套基于惠斯通电桥的多激励源的测温电桥实验装置. 讨论了测温电桥的激励源及其他组件的设计方案, 并进行了恒压源、恒流源和交流源激励下的测温电桥本底噪声的实验验证. 结果表明, 在三种激励源分别激励电桥时, 交流源结合锁相读出技术相较其他两种激励源能够达到更低的本底噪声, 且在30 mHz~1 Hz频率范围内的噪声优于10 μK·Hz<sup>–1/2</sup>, 基本能满足“太极探路者”的指标要求, 对太极计划后续μK·Hz<sup>–1/2</sup>级温度测量系统的研制提供了重要参考.

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Publication Details

Journal
Chinese Journal of Space Science
Published
2025-01-01
DOI
https://doi.org/10.11728/cjss2025.03.2024-0040
Primary Topic
Advanced Sensor Technologies Research
Type
article
Field-Weighted Citation Impact
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article

Design and Verification of Temperature Measurement Bridge Excitation Source in the Taiji Program

Heshan LIU, Xiaoyan Bian, Ziren Luo
Chinese Journal of Space Science
Advanced Sensor Technologies Research
article

Design and Verification of Temperature Measurement Bridge Excitation Source in the Taiji Program

Heshan LIU, Xiaoyan Bian, Ziren Luo
article en

Abstract

热扰动是空间引力波探测最重要的干扰来源之一, 为满足中国空间引力波探测“太极计划”的需求, 需要保证探测器光学干涉平台所在区域温度波动优于10 μK·Hz<sup>–1/2</sup> @ 0.1 mHz~1 Hz, 这需要μK·Hz<sup>–1/2</sup>的温度测量技术. 针对空间引力波探测对高分辨率测温技术的需求, 研制了一套基于惠斯通电桥的多激励源的测温电桥实验装置. 讨论了测温电桥的激励源及其他组件的设计方案, 并进行了恒压源、恒流源和交流源激励下的测温电桥本底噪声的实验验证. 结果表明, 在三种激励源分别激励电桥时, 交流源结合锁相读出技术相较其他两种激励源能够达到更低的本底噪声, 且在30 mHz~1 Hz频率范围内的噪声优于10 μK·Hz<sup>–1/2</sup>, 基本能满足“太极探路者”的指标要求, 对太极计划后续μK·Hz<sup>–1/2</sup>级温度测量系统的研制提供了重要参考.

Chinese Journal of Space ScienceVol. 45(3)
Openalex Percentile: Top 87%
Advanced Sensor Technologies Research
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Design and Verification of Temperature Measurement Bridge Excitation Source in the Taiji Program — Heshan LIU, Xiaoyan Bian, et al. · Chinese Journal of Space Science (2025) | TGRS Research Map | TGRS