A sinusoidal phase-modulating (SPM) laser diode (LD) interferometer for real-time surface profile measurement is proposed and its principle is analyzed.
提出一种实时测量表面形貌的正弦相位调制半导体激光干涉仪。
For a time, surface and subsurface current are in opposite directions; flow is seaward at the surface and landward near the bottom.
在一个时期，表层和次表层的水流方向相反；表层水流向外海方向流动，靠近底层的水流则向陆地方向流动。
For a time, surface and subsurface current are in opposite directions;
在一个时期，表层和次表层的水流方向相反；
For a time, surface and subsurface current are in opposite directions;
在一个时期，表层和次表层的水流方向相反；
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