激光长度基准 laser length standar
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在激光基准长距离、高精度直线度测量中，空气扰动是影响其测量精度的一个主要因素。
Atmosphere turbulence is the major factor that affects the accuracy of the propagating direction of a laser beam, and causes serious errors in laser straightness measurement at long distance.
对激光基准信标仪中所采用的液体摆角传感器的结构进行设计，分析其工作原理、放大电路。
The construction of the liquid angular sensor in the laser beacon is designed, the work principle and magnify circuit are analysed.
一种新的采用基准离焦信号的针孔调焦方案，用于激光直写的自动对焦子系统。
A new pinhole-focusing scheme using referenced defocus signal is applied to an automatic subsystem for laser direct writing.
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