altitude azimuth instrument 地平经纬仪
altitude and azimuth instrument 地平经纬仪
Compass azimuth instrument 罗经方位仪
survey instrument azimuth gyro 方位陀螺仪测量仪表
azimuth circle instrument 有方位度盘的测角仪
azimuth holding instrument 方位保持仪
azimuth-holding instrument 方位保持部件
In this paper, the finding north theory is introduced in detail, and presented a whole scheme on north-seeker system. At the same time, the theory of azimuth instrument is discussed.
文中对寻北仪的寻北原理作了详细的介绍，提出了寻北系统的整体方案，同时也介绍了方位仪的实现方案。
参考来源 - 基于DSP的快速寻北技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Inclinometer is an Instrument testing drift Angle and azimuth of drift hole.
斜仪是一种测定钻孔倾角和方位角的仪器。
The methods for reduction results are discussed in our paper Especially, the improvment for the error of the azimuth depended on the working catalogue and the transit instrument has been discussed.
本文讨论了本星表的归算方法，并对中星仪的方位误差的改进提出了方案。这个方案已在陕西天文台的仪器上进行了实验，结果证明方位误差明显得到了改善。
After that, rotating the sensitive axis of the gyro to point the true north, the instrument is working in the azimuth mode to constantly display azimuth angle of the carrier.
在实现寻北功能后，再通过施加力矩的方法使陀螺仪主轴转到真北方向，使系统工作于方位仪模式，则陀螺主轴就能始终保持在真北方位上，不断地指示车体相对北向方位的方位角。
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