西德欧波同公司的新产品之二—OMC型光学-机械三座标测量机,是以桥式固定工作台为设计基础,同时具有机械探头和非接触式的光学探头,在测量时两种探头可以通过按钮来选择,两个测量系统共用一个座标系统和原点,因此分别测得的数据可统一归算。光学测量系统使用配有高分辨率电荷耦合装置的摄象机通过电子图象处理系统进行测量和采集数据。镜头配有三种不同焦距的物镜,它们可以通过磁性吸盘和精密滚柱定位而保证快速准确的更换,无需重新校准,图象的放大倍数高则分辨率会改善,也有更高的测量精度,但视场会相应地缩小,增加搜索目标的困难和测量时间,为了兼顾这两个因素,经折衷后OMC的最高分辨率为 0.7μm,而相应的视场却达 1.3×1.7mm~2。这一综合指标也可用优值(视场~(1/2)/分辨率=1.3×1.7~(1/2)/0.0007=2124)来表示,(我们所知其他厂相似的光学设备,有的优值只有400～500)系统内部存有64个灰度等级的样板,这 West Germany Obo with the company’s new product two -OMC optical - mechanical coordinate measuring machine is based on the bridge fixed table for the design, with mechanical probe and non-contact optical probe, measuring two The probe can be selected by the button, the two measuring systems share a coordinate system and the origin, so the measured data can be unified and calculated. Optical measurement systems use cameras equipped with high-resolution charge-coupled devices to measure and acquire data through an electronic image processing system. The lenses are equipped with three objective lenses of different focal lengths that ensure fast and accurate replacement with magnetic chuck and precision roller alignment without recalibration, high magnification of the image with improved resolution and higher measurement accuracy, In order to balance these two factors, the highest resolution of the OMC is 0.7μm, while the corresponding field of view is 1.3 × 1.7mm ~ 2. This composite index can also be expressed by the merit (field ~ (1/2) / resolution = 1.3 * 1.7 ~ (1/2) /0.0007=2124) (other optical devices we know are similar The merit of only 400 ~ 500) There are 64 gray-scale model of the system, which