舰艇螺旋桨外形及参数测定

利用反射片作为瞄准目标的电子全站仪用于工业产品不规则外形检测和设计参数测定，需要解决的问题是：指定点位的测设，大地三维坐标的测定，大地坐标系和工业设计独立坐标系的转换，图形的制作和参数计算，本文介绍利用电子全站仪测定舰艇螺旋桨的外形尺寸及叶片参数的理论、方法和实测结果。

Measurement of Contour and Its Parameters of Ship Propeller

By use of an electronic total-station meter with a reflecting sheet as aiming target , the irregular contour of large industrial products can be determined and their design parameters measured precisely .In that ,the following problems should be solved : laying out design points on the object ,precise determination of 3-dimensional coordinates of those points by a total-station meter ,transformation of the geodetic coordinate system to an independent coordinate system of an industrial design ,establishing a fictitious 3-dimensional model of the object and calculating its design parameters .In this paper ,the theory ,method and practical example of using an electronic total-station meter to determine the contour and parameters of a ship propeller are introduced .