1) AB measurement method of focus
AB焦点测量法
2) quasi-AB measurement method of focus
类AB焦点测量法
3) Focus measurement
焦点测量
1.
Focus measurement of electron linear accelerator;
电子直线加速器焦点测量
4) Eight-spot measurement
八点测量法
5) two-point measurement approach
两点测量法
1.
Based on the advantage of fiber-optical sensor and the practicability of indirect measurement for the least lubricating film thickness,the indirect measurement approaches for the least lubricating film thickness of slide bearing using fiber optic sensor were discussed in theory,which include the two-point measurement approach and the three-point measurement approach.
基于光纤传感器的优点和间接测量油膜厚度方法的实用性,从理论上探讨了用光纤位移传感器间接测量圆轴承润滑油膜最小厚度的两种方法:两点测量法和三点测量法。
6) three-point measurement approach
三点测量法
1.
Based on the advantage of fiber-optical sensor and the practicability of indirect measurement for the least lubricating film thickness,the indirect measurement approaches for the least lubricating film thickness of slide bearing using fiber optic sensor were discussed in theory,which include the two-point measurement approach and the three-point measurement approach.
基于光纤传感器的优点和间接测量油膜厚度方法的实用性,从理论上探讨了用光纤位移传感器间接测量圆轴承润滑油膜最小厚度的两种方法:两点测量法和三点测量法。
补充资料：焦点
| 焦点 focus 理想光学系统主光轴上的一对特殊共轭点。主光轴上与无穷远像点共轭的点称为物方焦点（或第一焦点），记作F；主光轴上与无穷远物点共轭的点称为像方焦点(或第二焦点)，记作F′。根据上述定义，中心在物方焦点的同心光束经光学系统后成为与主光轴平行的平行光束；沿主光轴入射的平行光束经光学系统后成为中心在像方焦点的同心光束。图中画出了薄透镜的物方焦点和像方焦点。凸透镜有实焦点，凹透镜有虚焦点。
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参考词条