中星仪

本文给出了紫台光电中星仪1980&1985年的观测归算到FK5（J2000.0年）星表系统的508颗恒星的赤经改正。

The correction in right ascension of 508 stars determinated with PMO photoelectric transit instrument in 1980 & 1985 to FK5 system is given in the paper .

光电中星仪自动化改革技术总结

Technical Report on the Automation Reform of the Photoelectric Transit Instrument

弯斜T构桥梁双幅同步水平转体施工技术中星仪转置水平轴的自动控制

Double-breadth Synchronous Horizontal Rotating Construction Technology for T-type Rigid-framed Bent-oblique Bridges

电容式气泡水准器及其在中星仪上的应用

A capacitive bubble level and its application on the transit

用改装的中星仪绝对测定方位差的试验结果

The Test Results of the Azimuth Equations Absolutely Determined with a Refitted Transit Instrument

紫台光电中星仪测定的508颗恒星的赤经改正

The correction in right ascension of 508 stars determinated with PMO photoelectric transit instrument

中星仪改装的电路控制装置

A Circuit-Controlled installation for Refitting A Transit

应用于中星仪观测时，大大压缩了人差，提高了测时精度。

Applying it on the transit instrument , the personal equation was significantly reduced and the accuracy of the time determination was improved .

把中星仪改装成在子午方向和卯酉方向都可以观测的仪器后，进行了测定方位差的试验观测。

The preliminary test observations for determining azimuth equations with a refitted transit instrument , which may be used to observe the stars in the meridian and .

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。

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 .

旋转使（中星仪的望远镜）围绕其水平模轴旋转，并转向一个相反的方向单转子直升飞机尾部上的旋转机翼；防止直升飞机的旋转方向与主转子相反。

To revolve ( the telescope of a surveying transit ) about its horizontal transverse axis in order to reverse its direction . a rotating airfoil on the tail of a single-rotor helicopter ; keeps the helicopter from spinning in the direction opposite to the rotation of the main rotor .