Queen Yun H
National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
J Res Natl Inst Stand Technol. 1994 Sep-Oct;99(5):593-603. doi: 10.6028/jres.099.057.
Vector analysis is used to determine the quantitative error in angle calibration using autoeollimators. This error is caused by tilt in the mount upon which the artifact is placed. For tilt angles that are less than 1°, the error can be simplified to be the product of a eoeffieient and three terms. The three terms are: (1) the square of the tilt, (2) the sine of the artifact's nominal angle, and (3) the eosine of the artifact's nominal angle plus two times the artifact's position angle. It is shown that the error can be eliminated by placing the artifact at designated periodic positions.
矢量分析用于确定使用自准直仪进行角度校准时的定量误差。该误差是由放置工件的支架倾斜引起的。对于小于1°的倾斜角度,该误差可简化为一个系数与三项的乘积。这三项分别是:(1)倾斜度的平方,(2)工件标称角度的正弦值,以及(3)工件标称角度的余弦值加上工件位置角度的两倍。结果表明,通过将工件放置在指定的周期性位置,可以消除该误差。