Due to the temperature fluctuation, both the self-gravity disturbance level of the gravitational wave detection vehicle and the laser interference measurement system are affected, which brings great noise to the gravitational wave measurement, and the temperature field fluctuation has become one of the most important noise sources of the inertial sensor. In order to ensure the noise level of the inertial sensor to meet the needs of detection, this paper uses the AC bridge to reduce the self-noise of the temperature measurement system, improve the resolution of the temperature measurement system, and realize a high-resolution and low-noise temperature measurement system. The experimental results show that the effective value of self-noise of the temperature measurement system is about 3.65 × 10−5∘C, and the long-period noise is less than 1 × 10−5∘C. It can be used in the space gravitational wave detection test and control system.

中文翻译：

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一种高分辨率、低噪声的温度测量系统

由于温度波动，引力波探测车的自引力扰动水平和激光干涉测量系统都受到影响，给引力波测量带来很大的噪声，温度场波动成为最重要的影响因素之一。惯性传感器的噪声源。为保证惯性传感器的噪声水平满足检测需要，本文采用交流电桥降低测温系统的自噪声，提高测温系统的分辨率，实现高分辨率和低噪声温度测量系统。实验结果表明，测温系统的自噪声有效值约为3.65×10-5∘C, 长周期噪声小于 1 × 10-5∘C. 可用于空间引力波探测测控系统。