适用于超导重力梯度仪的低温工作平台关键技术研究

项目名称： 适用于超导重力梯度仪的低温工作平台关键技术研究

项目编号： No.41204132

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 地球物理学和空间物理学

项目作者： 陈亮

作者单位： 华中科技大学

项目金额： 26万元

中文摘要： 超导重力梯度仪是目前作为航空重力梯度测量技术当中具有非常广泛应用前景的仪器,其涉及到学科较多,由于西方国家的技术封锁,我国必须自主研发。本项目拟开展适用于超导重力梯度仪的低温工作平台关键技术攻关研究。为了实现后期超导重力梯度仪分辨率1E要求，通过对低温平台的超稳温度控制，使梯度仪工作环境温度的涨落在几十微K的范围内，同时对低温平台的静磁屏蔽效果进行有效控制，在此基础上对平台进行改装设计能够后续开展超导梯度仪调试及标定实验。在所搭建平台下, 研究低温环境极小温度涨落和外部静磁场对于超导电路中敏感元件的影响,以及基于超导SQUID技术的低温温度补偿技术研究。

中文关键词： 低温平台；超导；温度控制；；

英文摘要： Superconducting gravity gradiometer as the airborne gravity gradient measurement has very wide application.Because of technological blockade of the Western countries, our country should have an independent research and development, which involves many subjects and has many difficulties to overcome. The project intends to carry out the key technologies in the cryogenic platform for the superconducting gravity gradiometer. In order to achieve the 1E resolution of the late superconducting gravity gradiometer, ultra-stable working platform with environment temperature fluctuation within the range of dozens of micro-K, and static magnetic shielding effect need to be effective controlled. In the designed platform, influence of the low-temperature fluctuations and the external static magnetic field on the component of the superconducting circuit is to be investigated. At the same time, temperature compensation technology to be developed based on the Superconductivity Quantum Interference Device (SQUID).

英文关键词： cryogenic platform；superconducting；temperature control；；