A system for thermal gravimeter conditioning

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412) Pub Date : 2003-05-20 DOI:10.1109/IMTC.2003.1208112

B. Andò, S. Graziani

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Abstract

AoSflPEI - A novel system is described for the thermal control of a chamber hosting a gravimeter. The proposed system has been developed by taking into account bofh metrological, economic and power consumption constraints. Experimental data analysk shows the suitabiliry of the proposed approach to improve the thermal insulation of thegravimeter. 1. 1NTRODUCTION Several measuring systems operating in hard environment are deeply influenced by exogenous parameters [l]. This is of course the case of gravimeters working very close to active volcanic areas. A thermal conditioned chamber for gravimeters is proposed, which is based on both a multi-sensor distributed architecture and non-linear signal processing, implemented by using dedicated electronics. Thermal excursions characterized by both daily and seasonal time scales, significantly affect the behavior of continuously running gravimeters. Amplitudes of such dynamics are quite higher than signals actually correlated to gravity excursions [2-3]. Moreover, thermal gradients arise along the vertical axis of the gravimeter which greatly influence the device functioning. Strategy usually adopted for fixing this kind of problems can he classified as:

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热重力仪调节系统

介绍了一种用于重力仪室热控制的新型系统。提出的系统是在考虑了计量、经济和电力消耗限制的情况下开发的。实验数据分析表明，该方法可以有效地提高重力仪的隔热性能。1. 一些在硬环境下工作的测量系统受外源参数的影响很大[1]。这当然是重力仪在离活火山区域很近的地方工作的情况。提出了一种基于多传感器分布式结构和非线性信号处理的重力仪热调节室，并采用专用电子器件实现。以日和季节时间尺度为特征的热漂移对连续运行重力仪的性能有显著影响。这种动力学的振幅比实际与重力漂移相关的信号要高得多[2-3]。此外，沿着重力仪的垂直轴会产生热梯度，这极大地影响了设备的功能。通常用于解决这类问题的策略可以分为:

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412)

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