2) Focus detection
聚焦探测
1.
A novel optical stylus profilometer based on dynamic focus detection is introduced.
介绍了一种新型的基于动态聚焦探测法的光学轮廓仪，该仪器可实现表面形貌的快速、非接触测量，其最大测量范围为５００μｍ，最小分辨率可达１０ｎｍ。
2.
A focus tracing sensor based on focus detection for measuring surface topography is introduced.
介绍了一种新型的基于聚焦探测法的自动焦点跟踪传感器,该传感器可实现表面形貌的快速、非接触测量,其测量范围为500 μm ,分辨率可达3 nm ;详细地描述了该传感器的工作原理、关键技术的实现及其应用。
3) detecting focus
焦点探测
4) focus error detection
离焦检测
1.
Based on the focus pre-search a method is presented to measure the characteristics of the traverse focus error detection system:focus offset,focus error sensitivity and linear range.
利用聚焦预搜索原理,测量出小机芯离焦检测系统特性的关键参数:离焦偏置、离焦灵敏度和线性区范围。
6) measuring out of focus
离焦测量
补充资料：核爆炸地震波探测(见核爆炸探测)
核爆炸地震波探测(见核爆炸探测)
nuclear explosion seismic detection
hebaozho dizhenbo tanee核爆炸地震波探测(nuclear explos，onseismie detecuon)见核爆炸探汉，l。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条