AUBAT标准球心距是计量校准检定三坐标、影像仪、轮廓仪、成像扫描仪、空间定位仪等必备的标准器具。
  AUBAT is the standard standard sphere center distance measuring instruments and calibration verification three coordinate, image analyzer, profilometer, imaging scanner, space positioning and other necessary.
  
 特点：
 Characteristic
1.曲率精度高 方便圆心定位 精度误差≤0.001mm
  high precision positioning precision convenient curvature center ≤ 0.001mm
2.球体表面光洁度粗糙度极低 Ra4-8nm(纳米）
  The roughness of the surface of the sphere is extremely low Ra4-8nm (nanoscale)
3.数据耐久稳定、硬度高于钢 RC等于78
  The data is durable and stable, the hardness is higher than steel RC equal to 78
4.不易变形 热膨胀系数低，弹性模量高，优于钢数倍
  The coefficient of thermal expansion is low, and the modulus of elasticity is high
5.绝缘无磁性，对仪器磁干扰为0 
  The insulation is non magnetic, and the magnetic interference to the instrument is 0
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