基于矩形棱柱结构的单轴重力梯度仪设计  

Design of monaxial gravity gradiometer based on configuration of rectangle prism

作　　者：宋彦峥[1] 齐娜[1] 王劲松[1] 

机构地区：[1]中国电子科技集团公司第四十九研究所,黑龙江哈尔滨150001

出　　处：《传感器与微系统》2016年第4期73-75,78,共4页Transducer and Microsystem Technologies

摘　　要：为了实现在共振的模式下进行重力梯度测量,提出一种基于矩形棱柱结构的单轴重力梯度仪。该重力梯度仪基于扭矩式测量原理,质量块采用矩形棱柱形,可减小随机噪声,提高空间分辨率。此设计结构实现了在被测方向上重力梯度值的准确测量,减少了其他方向重力场对测量的影响。给出了矩形棱柱结构重力梯度仪的系统数学模型,设计了一种单轴重力梯度仪的结构并进行了结构仿真。通过测试结果表明:该重力梯度仪实现了系统在共振的模式下进行重力梯度测量,具有结构设计简单,灵敏度高等特点。A monaxial gravity gradiometer based on configuration of rectangle prism is proposed in order to realize gravity gradient measurement in resonance mode. The gravity gradiometer is based on principle of torsion measurement,mass block use configuration of rectangle prism,it can reduce random noise and enhance spatial resolution. The design configuration realizes accurate measurement of gravity gradient,reduce influence of gravity field in other directions on measurement,give mathematical model for structure of rectangular prism gradiometer,structure of monaxial gradiometer is simulated. The simulation results show that the gravity gradiometer realize gravity gradient measurement in resonance mode,it has the characteristics of simple structure,high sensitivity.

关 键 词：重力梯度 矩形棱柱 灵敏度 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]