... laser heterodyne acoustic sensor 激光外差式声学传感器 laser heterodyne system 激外差拍系统 laser heterodynes measurement 激光外差测量 ...
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This paper describes a measuring system basing on an optical heterodyne interferometer, which utilizes a multi-mode laser diode and coupled optical fibers to adjust the coherent length of the system.
研究了一种采用多模半导体激光与耦合光纤、采取声光调制及调节相干长度的外差干涉系统。
The rhomb has been used in the CO2 laser heterodyne detection system, and the transfer efficiency is more than 93 %.
该菱体较好地用于CO_2激光外差接收系统中，其能量转换效率达到93%以上。
The influences of atmospheric turbulence on interference efficiency due to the angle of arrival fluctuation in the laser heterodyne detection system were presented.
提出了一套新颖扫描成像系统方案，它综合了共焦扫描方式与光外差探测方法的优点。
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