The BGS80CC features a high resolution 4,000 cts/rev rotary encoder with index pulse for precision homing and is the recommended choice for applications requiring accurate bi-directional positioning. For tightest position control, the rotary encoder is directly mounted on the worm screw. This avoids the majority of drive train error sources that affect other stages with indirect position read out. BG Series goniometric cradles rotate on a transverse axis above the platform. Compared to full 360 ° rotation stages, they offer maximum free access to the rotating part and allow construction of very compact multi-axis rotation assemblies. BG cradles are designed so that orthogonal mounting of two adjacent-size cradles (e.g., BGS50 and BGS80) provides two perpendicular rotational axes intersecting at about the same point in space. Mounting a rotation stage under the assembly adds a third orthogonal rotation axis through the same point. Precision rotation is ensured by a precision ground, hardened worm gear drive. Single row ball bearings and precision ground tool-steel races ensure smooth rotation with minimal wobble and eccentricity. A home switch, conveniently located at the center of travel, facilitates the return of the platform to a level position.


BGS80CC具有高分辨率4,000 cts/rev旋转编码器，具有用于精确寻的索引脉冲，是需要精确双向定位的应用程序的推荐选择。为实现最精确的位置控制，旋转编码器直接安装在蜗杆上。这避免了大多数传动系误差源影响其他阶段间接位置读出。BG系列测角支架在平台上方的横轴上旋转。满360°旋转阶段相比,他们提供最大自由获取的转动部分,允许建设非常紧凑多轴旋转总成。BG支架的设计使得两个相邻尺寸的支架(例如BGS50和BGS80)的正交安装能够提供两个垂直的旋转轴，它们相交于空间中的同一点。安装在组件下的旋转台通过同一点添加第三个正交旋转轴。精密旋转由精密磨削、淬火蜗轮传动保证。单列滚珠轴承和精密的地面工具钢制滚道确保平稳旋转，最小的抖动和偏心。一个家庭开关，方便地位于旅行中心，促进平台返回到一个水平位置。